
                                       UNITED STATES
                           SECURITIES AND EXCHANGE COMMISSION
                                 Washington, D.C.  20549


                                        FORM 8-K


                     Current Report Pursuant To Section 13 or 15(d) of
                            the Securities Exchange Act of 1934

           Date of Report (Date of earliest event reported):  October 25, 2005
                          (Date of earliest event reported)

            Indymac MBS, Inc. (as Depositor under the Pooling and Servicing
                Agreement, dated as September 1, 2005, providing for the
               issuance of IndyMac INDX Mortgage Loan Trust 2005-AR23
                Mortgage Pass-Through Certificates, Series 2005-AR23)
                 (Exact name of registrant as specified in charter)


                                         DELAWARE
                     (State or Other Jurisdiction of Incorporation)

               333-127556-10                        95-4791925
          (Commission File Number)        (I.R.S. Employer Identification No.)


          155 NORTH LAKE AVENUE
          PASADENA, CALIFORNIA                         91101
          (Address of principal executive offices)     (Zip Code)



          Registrant's Telephone Number, Including Area Code:  (800) 669-2300

       (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any
of the following provisions (see General Instruction A.2. below):

[  ] Written communications pursuant to Rule 425 under the Securities Act
(17 CFR 230.425)

[  ] Soliciting material pursuant to Rule 14a-12(b) under the Exchange Act
(17 CFR 240.14a-12(b))

[  ] Pre-commencement communications pursuant to Rule 14d-2(b) under the
Exchange Act (17 CFR 240.14d-2(b))

[  ] Pre-commencement communications pursuant to Rule 13e-4(c) under the
Exchange Act (17 CFR 240.13e-4(c))


     Item 8.01  Other Events

     Attached hereto is a copy of the Monthly Remittance Statements to the
     Certificateholders which was derived from the monthly information
     submitted by the Master Servicer of the Trust to the Trustee.


     Item 9.01 Financial Statements and Exhibits

     (c) Exhibits:

     Exhibit No. Description

     99.1 Monthly Remittance Statement to the Certificateholders dated as of
     October 25, 2005.

                                    Signatures

               Pursuant to the requirements of the Securities Exchange Act of
          1934, the Registrant has duly caused this report to be signed on its
          behalf by the undersigned, hereunto duly authorized.


                                  Deutsche Bank National Trust Company,
                                  in its capacity as Trustee under the
                                  Pooling and Servicing Agreement on
                                  behalf of Indymac MBS, Inc., Registrant


          Date:  Oct 28, 2005               By:  /s/  Katherine M. Wannenmacher
                                            Katherine M. Wannenmacher
                                            Vice President


                                   EXHIBIT INDEX

          DOCUMENT

          99.1 Monthly Remittance Statement to the Certificateholders
          dated as of October 25, 2005.



IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution

				External Parties						Table of Contents

													Page
				Seller									Page
				Seller						1. Certificate Payment Report					2
				IndyMac Bank						1. Certificate Payment Report					2
				IndyMac Bank						2. Collection Account Report					6
										2. Collection Account Report					6
										3. Credit Enhancement Report					11
										4. Collateral Report					12
				Certificate Insurer(s)						5. Delinquency Report					19
				Certificate Insurer(s)						5. Delinquency Report					19
										6. REO Report					26

										7. Foreclosure Report					27
										8. Prepayment Report					28
										9. Prepayment Detail Report					33
										9. Prepayment Detail Report					33
										10. Realized Loss Report					35
										11. Realized Loss Detail Report					40
				Servicer(s)						11. Realized Loss Detail Report					40
				Servicer(s)						12. Triggers and Adj. Cert. Report					41
				IndyMac Bank						12. Triggers and Adj. Cert. Report					41
				IndyMac Bank						13. Other Related Information					43
										13. Other Related Information					43


				Underwriter(s)
				Greenwich Capital Markets


										Total Number of Pages					44
										Total Number of Pages

				Dates						Contacts

				Cut-Off Date:			September 01, 2005			Brent Hoyler
				Close Date:			September 25, 2005			Administrator
				First Distribution Date:			October 25, 2005			(714) 247-6322
										Brent.Hoyler@db.com
										Brent.Hoyler@db.com
										Address:
										1761 East St. Andrew Place, Santa Ana, CA 92705
				Distribution Date:			October 25, 2005
										Factor Information:			(800) 735-7777
				Record Date:			September 30, 2005			Factor Information:			(800) 735-7777
										Main Phone Number:			(714) 247-6000
										Main Phone Number:			(714) 247-6000

										https://www.tss.db.com/invr






Page 1 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution
Certificate Payment Report
Current Period Distribution - REMIC IV
					Prior												Current
	Class		Original		Principal						Total		Realized		Deferred		Principal
	Class		Original		Principal						Total		Realized		Deferred		Principal
Class	Type	Cur	Face Value		Balance		Interest		Principal		Distribution		Loss		Interest		Balance


					(1)		(2)		(3)		(4)=(2)+(3)		(5)		(6)		(7)=(1)-(3)-(5)+(6)

1-A-1	SR	$	112,789,900.00		112,789,900.00		514,234.78		3,552,233.78		4,066,468.56		0.00		0.00		109,237,666.22
1-A-1	SR	$	112,789,900.00		112,789,900.00		514,234.78		3,552,233.78		4,066,468.56		0.00		0.00		109,237,666.22
2-A-1	SR	$	240,931,735.00		240,931,735.00		1,122,001.03		5,456,195.79		6,578,196.82		0.00		0.00		235,475,539.21
2-A-2	SR	$	16,749,265.00		16,749,265.00		78,000.07		379,307.73		457,307.80		0.00		0.00		16,369,957.27
3-A-1	SR	$	183,321,600.00		183,321,600.00		835,174.13		2,966,465.51		3,801,639.64		0.00		0.00		180,355,134.49
3-A-2	SR	$	13,798,400.00		13,798,400.00		62,862.57		223,282.35		286,144.92		0.00		0.00		13,575,117.65
4-A-1	SR	$	70,647,665.00		70,647,665.00		324,320.97		872,508.23		1,196,829.20		0.00		0.00		69,775,156.77
4-A-2	SR	$	4,911,335.00		4,911,335.00		22,546.38		60,655.65		83,202.03		0.00		0.00		4,850,679.35
I-A-R	SR/RES	$	100.00		100.00		0.46		100.00		100.46		0.00		0.00		0.00
I-B-1	SUB	$	17,540,000.00		17,540,000.00		80,701.72		1,698.66		82,400.38		0.00		0.00		17,538,301.34
I-B-2	SUB	$	9,974,000.00		9,974,000.00		45,890.48		965.93		46,856.41		0.00		0.00		9,973,034.07
I-B-3	SUB	$	5,158,000.00		5,158,000.00		23,732.01		499.53		24,231.54		0.00		0.00		5,157,500.47
I-B-4	SUB	$	4,815,000.00		4,815,000.00		22,153.86		466.31		22,620.17		0.00		0.00		4,814,533.69
I-B-5	SUB	$	3,783,000.00		3,783,000.00		17,405.62		366.36		17,771.98		0.00		0.00		3,782,633.64
I-B-6	SUB	$	3,443,538.00		3,443,538.00		15,843.75		333.48		16,177.23		0.00		0.00		3,443,204.52
I-P	NOF	$	100.00		100.00		0.00		0.00		0.00		0.00		0.00		100.00


Total			687,863,638.00		687,863,638.00		3,164,867.83		13,515,079.31		16,679,947.14		0.00		0.00		674,348,558.69
Total




Interest Accrual Detail Current Period Factor Information per $1,000 of Original Face-
									Orig. Principal		Prior							Current
									Orig. Principal		Prior							Current
	Period		Period						(with Notional)		Principal						Total	Principal
	Period		Period
Class	Starting		Ending		Method		Cusip		Balance		Balance		Interest		Principal		Distribution	Balance

									(1)		(1)		(2)		(3)		(4)=(2)+(3)	(5)
1-A-1	09/25/05		10/24/05		A-30/360		45660LF20		112,789,900.00		1,000.000000		4.559227		31.494254		36.053481	968.505746
2-A-1	09/25/05		10/24/05		A-30/360		45660LF38		240,931,735.00		1,000.000000		4.656925		22.646231		27.303156	977.353769
2-A-2	09/25/05		10/24/05		A-30/360		45660LF46		16,749,265.00		1,000.000000		4.656925		22.646231		27.303156	977.353769
3-A-1	09/25/05		10/24/05		A-30/360		45660LF53		183,321,600.00		1,000.000000		4.555787		16.181757		20.737543	983.818243
3-A-2	09/25/05		10/24/05		A-30/360		45660LN62		13,798,400.00		1,000.000000		4.555787		16.181757		20.737543	983.818243
4-A-1	09/25/05		10/24/05		A-30/360		45660LF61		70,647,665.00		1,000.000000		4.590682		12.350135		16.940818	987.649865
4-A-2	09/25/05		10/24/05		A-30/360		45660LF79		4,911,335.00		1,000.000000		4.590683		12.350135		16.940818	987.649865
I-A-R	09/25/05		10/24/05		A-30/360		45660LG37		100.00		1,000.000000		4.600000		1,000.000000		1,004.600000	0.000000
I-B-1	09/25/05		10/24/05		A-30/360		45660LG45		17,540,000.00		1,000.000000		4.601010		0.096845		4.697855	999.903155
I-B-2	09/25/05		10/24/05		A-30/360		45660LG52		9,974,000.00		1,000.000000		4.601011		0.096845		4.697855	999.903155
I-B-3	09/25/05		10/24/05		A-30/360		45660LG60		5,158,000.00		1,000.000000		4.601010		0.096846		4.697856	999.903154
I-B-4	09/25/05		10/24/05		A-30/360		45660LH69		4,815,000.00		1,000.000000		4.601009		0.096845		4.697855	999.903155
I-B-5	09/25/05		10/24/05		A-30/360		45660LH77		3,783,000.00		1,000.000000		4.601010		0.096844		4.697854	999.903156
I-B-6	09/25/05		10/24/05		A-30/360		45660LH85		3,443,538.00		1,000.000000		4.601009		0.096842		4.697851	999.903158
I-P	09/25/05		10/24/05		A-30/360		45660LM71		100.00		1,000.000000		0.000000		0.000000		0.000000	1,000.000000




Page 2 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution

Distribution to Date - REMIC IV
																	Current


	Original				Unscheduled		Scheduled		Total		Total		Realized		Deferred		Principal

Class	Face Value		Interest		Principal		Principal		Principal		Distribution		Loss		Interest		Balance
	(1)		(2)		(3)		(4)		(5)=(3)+(4)		(6)=(2)+(5)		(7)		(8)		(9)=(1)-(5)-(7)+(8)
1-A-1	112,789,900.00		514,234.78		3,526,194.72		26,039.06		3,552,233.78		4,066,468.56		0.00		0.00		109,237,666.22
2-A-1	240,931,735.00		1,122,001.03		5,416,200.05		39,995.74		5,456,195.79		6,578,196.82		0.00		0.00		235,475,539.21
2-A-2	16,749,265.00		78,000.07		376,527.28		2,780.45		379,307.73		457,307.80		0.00		0.00		16,369,957.27
3-A-1	183,321,600.00		835,174.13		2,944,720.33		21,745.18		2,966,465.51		3,801,639.64		0.00		0.00		180,355,134.49
3-A-2	13,798,400.00		62,862.57		221,645.61		1,636.73		223,282.35		286,144.92		0.00		0.00		13,575,117.65
4-A-1	70,647,665.00		324,320.97		866,112.45		6,395.78		872,508.23		1,196,829.20		0.00		0.00		69,775,156.77
4-A-2	4,911,335.00		22,546.38		60,211.02		444.63		60,655.65		83,202.03		0.00		0.00		4,850,679.35
I-A-R	100.00		0.46		99.27		0.73		100.00		100.46		0.00		0.00		0.00
I-B-1	17,540,000.00		80,701.72		1,686.21		12.45		1,698.66		82,400.38		0.00		0.00		17,538,301.34
I-B-2	9,974,000.00		45,890.48		958.85		7.08		965.93		46,856.41		0.00		0.00		9,973,034.07
I-B-3	5,158,000.00		23,732.01		495.87		3.66		499.53		24,231.54		0.00		0.00		5,157,500.47
I-B-4	4,815,000.00		22,153.86		462.89		3.42		466.31		22,620.17		0.00		0.00		4,814,533.69
I-B-5	3,783,000.00		17,405.62		363.67		2.69		366.36		17,771.98		0.00		0.00		3,782,633.64
I-B-6	3,443,538.00		15,843.75		235.74		2.44		333.48		16,177.23		0.00		0.00		3,443,204.52
I-P	100.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00		100.00


Total	687,863,638.00		3,164,867.83		13,415,913.96		99,070.04		13,515,079.31		16,679,947.14		0.00		0.00		674,348,558.69


Interest Detail - REMIC IV
	Pass		Prior Principal				Non-		Prior		Unscheduled				Paid or		Current
	Pass		Prior Principal				Non-		Prior		Unscheduled				Paid or

	Through		(with Notional)		Accrued		Supported		Unpaid		Interest		Optimal		Deferred		Unpaid

Class	Rate		Balance		Interest		Interest SF		Interest		Adjustment		Interest		Interest		Interest
					(1)		(2)		(3)		(4)		(5)=(1)-(2)+(3)+(4)		(6)		(7)=(5)-(6)
1-A-1	5.47107%		112,789,900.00		514,234.78		0.00		0.00		0.00		514,234.78		514,234.78		0.00
2-A-1	5.58831%		240,931,735.00		1,122,001.03		0.00		0.00		0.00		1,122,001.03		1,122,001.03		0.00
2-A-2	5.58831%		16,749,265.00		78,000.07		0.00		0.00		0.00		78,000.07		78,000.07		0.00
3-A-1	5.46694%		183,321,600.00		835,174.13		0.00		0.00		0.00		835,174.13		835,174.13		0.00
3-A-2	5.46694%		13,798,400.00		62,862.57		0.00		0.00		0.00		62,862.57		62,862.57		0.00
4-A-1	5.50882%		70,647,665.00		324,320.97		0.00		0.00		0.00		324,320.97		324,320.97		0.00
4-A-2	5.50882%		4,911,335.00		22,546.38		0.00		0.00		0.00		22,546.38		22,546.38		0.00
I-A-R	5.52000%		100.00		0.46		0.00		0.00		0.00		0.46		0.46		0.00
I-B-1	5.52121%		17,540,000.00		80,701.72		0.00		0.00		0.00		80,701.72		80,701.72		0.00
I-B-2	5.52121%		9,974,000.00		45,890.48		0.00		0.00		0.00		45,890.48		45,890.48		0.00
I-B-3	5.52121%		5,158,000.00		23,732.01		0.00		0.00		0.00		23,732.01		23,732.01		0.00
I-B-4	5.52121%		4,815,000.00		22,153.86		0.00		0.00		0.00		22,153.86		22,153.86		0.00
I-B-5	5.52121%		3,783,000.00		17,405.62		0.00		0.00		0.00		17,405.62		17,405.62		0.00
I-B-6	5.52121%		3,443,538.00		15,843.75		0.00		0.00		0.00		15,843.75		15,843.75		0.00
I-P	0.00000%		100.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00


Total			687,863,638.00		3,164,867.83		0.00		0.00		0.00		3,164,867.83		3,164,867.83		0.00



Page 3 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution

Current Period Distribution - REMIC V
					Prior												Current
	Class		Original		Principal						Total		Realized		Deferred		Principal
	Class		Original		Principal						Total		Realized		Deferred		Principal
Class	Type	Cur	Face Value		Balance		Interest		Principal		Distribution		Loss		Interest		Balance


					(1)		(2)		(3)		(4)=(2)+(3)		(5)		(6)		(7)=(1)-(3)-(5)+(6)

5-A-1	SR	$	146,572,100.00		146,572,100.00		731,661.04		996,445.38		1,728,106.42		0.00		0.00		145,575,654.62
5-A-1	SR	$	146,572,100.00		146,572,100.00		731,661.04		996,445.38		1,728,106.42		0.00		0.00		145,575,654.62
6-A-1	SR	$	246,113,000.00		246,113,000.00		1,176,276.29		2,565,852.54		3,742,128.83		0.00		0.00		243,547,147.46
6-A-2	SR	$	10,151,000.00		10,151,000.00		48,515.85		105,829.31		154,345.16		0.00		0.00		10,045,170.69
II-A-R	SR/RES	$	100.00		100.00		0.50		100.00		100.50		0.00		0.00		0.00
II-B-1	SUB	$	12,241,000.00		12,241,000.00		59,450.85		1,662.68		61,113.53		0.00		0.00		12,239,337.32
II-B-2	SUB	$	7,869,000.00		7,869,000.00		38,217.36		1,068.83		39,286.19		0.00		0.00		7,867,931.17
II-B-3	SUB	$	5,027,000.00		5,027,000.00		24,414.62		682.81		25,097.43		0.00		0.00		5,026,317.19
II-B-4	SUB	$	5,246,000.00		5,246,000.00		25,478.24		712.56		26,190.80		0.00		0.00		5,245,287.44
II-B-5	SUB	$	2,186,000.00		2,186,000.00		10,616.74		296.92		10,913.66		0.00		0.00		2,185,703.08
II-B-6	SUB	$	1,748,434.17		1,748,434.17		8,491.62		237.48		8,729.10		0.00		0.00		1,748,196.69
II-P	NOF	$	100.00		100.00		0.00		0.00		0.00		0.00		0.00		100.00



Total			437,153,734.17		437,153,734.17		2,123,123.11		3,672,888.51		5,796,011.62		0.00		0.00		433,480,845.66
Total




Interest Accrual Detail Current Period Factor Information per $1,000 of Original Face-
									Orig. Principal		Prior						Current
									Orig. Principal		Prior						Current
	Period		Period						(with Notional)		Principal						Total	Principal
	Period		Period
Class	Starting		Ending		Method		Cusip		Balance		Balance		Interest		Principal		Distribution	Balance

									(1)		(1)		(2)		(3)		(4)=(2)+(3)	(5)
5-A-1	09/25/05		10/24/05		A-30/360		45660LF87		146,572,100.00		1,000.000000		4.991817		6.798329		11.790146	993.201671
6-A-1	09/25/05		10/24/05		A-30/360		45660LF95		246,113,000.00		1,000.000000		4.779416		10.425506		15.204921	989.574494
6-A-2	09/25/05		10/24/05		A-30/360		45660LG29		10,151,000.00		1,000.000000		4.779416		10.425506		15.204922	989.574494
II-A-R	09/25/05		10/24/05		A-30/360		45660LN54		100.00		1,000.000000		5.000000		1,000.000000		1,005.000000	0.000000
II-B-1	09/25/05		10/24/05		A-30/360		45660LG78		12,241,000.00		1,000.000000		4.856699		0.135829		4.992528	999.864171
II-B-2	09/25/05		10/24/05		A-30/360		45660LG86		7,869,000.00		1,000.000000		4.856698		0.135828		4.992526	999.864172
II-B-3	09/25/05		10/24/05		A-30/360		45660LG94		5,027,000.00		1,000.000000		4.856698		0.135829		4.992526	999.864171
II-B-4	09/25/05		10/24/05		A-30/360		45660LH93		5,246,000.00		1,000.000000		4.856698		0.135829		4.992528	999.864171
II-B-5	09/25/05		10/24/05		A-30/360		45660LJ26		2,186,000.00		1,000.000000		4.856697		0.135828		4.992525	999.864172
II-B-6	09/25/05		10/24/05		A-30/360		45660LJ34		1,748,434.17		1,000.000000		4.856700		0.135824		4.992524	999.864176
II-P	09/25/05		10/24/05		A-30/360		45660LM89		100.00		1,000.000000		0.000000		0.000000		0.000000	1,000.000000





Page 4 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution

Distribution to Date - REMIC V
																	Current


	Original				Unscheduled		Scheduled		Total		Total		Realized		Deferred		Principal

Class	Face Value		Interest		Principal		Principal		Principal		Distribution		Loss		Interest		Balance
	(1)		(2)		(3)		(4)		(5)=(3)+(4)		(6)=(2)+(5)		(7)		(8)		(9)=(1)-(5)-(7)+(8)
5-A-1	146,572,100.00		731,661.04		989,141.10		7,304.28		996,445.38		1,728,106.42		0.00		0.00		145,575,654.62
6-A-1	246,113,000.00		1,176,276.29		2,547,043.98		18,808.56		2,565,852.54		3,742,128.83		0.00		0.00		243,547,147.46
6-A-2	10,151,000.00		48,515.85		105,053.54		18,808.56		105,829.31		154,345.16		0.00		0.00		10,045,170.69
II-A-R	100.00		0.50		99.27		0.73		100.00		100.50		0.00		0.00		0.00
II-B-1	12,241,000.00		59,450.85		1,650.49		12.19		1,662.68		61,113.53		0.00		0.00		12,239,337.32
II-B-2	7,869,000.00		38,217.36		1,061.00		7.83		1,068.83		39,286.19		0.00		0.00		7,867,931.17
II-B-3	5,027,000.00		24,414.62		677.80		5.01		682.81		25,097.43		0.00		0.00		5,026,317.19
II-B-4	5,246,000.00		25,478.24		707.34		5.22		712.56		26,190.80		0.00		0.00		5,245,287.44
II-B-5	2,186,000.00		10,616.74		294.74		2.18		296.92		10,913.66		0.00		0.00		2,185,703.08
II-B-6	1,748,434.17		8,491.62		0.00		1.74		237.48		8,729.10		0.00		0.00		1,748,196.69
II-P	100.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00		100.00



Total	437,153,734.17		2,123,123.11		3,645,729.26		44,956.30		3,672,888.51		5,796,011.62		0.00		0.00		433,480,845.66


Interest Detail - REMIC V
	Pass		Prior Principal				Non-		Prior		Unscheduled				Paid or		Current
	Pass		Prior Principal				Non-		Prior		Unscheduled				Paid or

	Through		(with Notional)		Accrued		Supported		Unpaid		Interest		Optimal		Deferred		Unpaid

Class	Rate		Balance		Interest		Interest SF		Interest		Adjustment		Interest		Interest		Interest
				(1)		(2)		(3)		(4)		(5)=(1)-(2)+(3)+(4)		(6)		(7)=(5)-(6)
5-A-1	5.99018%		146,572,100.00		731,661.04		0.00		0.00		0.00		731,661.04		731,661.04		0.00
6-A-1	5.73530%		246,113,000.00		1,176,276.29		0.00		0.00		0.00		1,176,276.29		1,176,276.29		0.00
6-A-2	5.73530%		10,151,000.00		48,515.85		0.00		0.00		0.00		48,515.85		48,515.85		0.00
II-A-R	6.00000%		100.00		0.50		0.00		0.00		0.00		0.50		0.50		0.00
II-B-1	5.82804%		12,241,000.00		59,450.85		0.00		0.00		0.00		59,450.85		59,450.85		0.00
II-B-2	5.82804%		7,869,000.00		38,217.36		0.00		0.00		0.00		38,217.36		38,217.36		0.00
II-B-3	5.82804%		5,027,000.00		24,414.62		0.00		0.00		0.00		24,414.62		24,414.62		0.00
II-B-4	5.82804%		5,246,000.00		25,478.24		0.00		0.00		0.00		25,478.24		25,478.24		0.00
II-B-5	5.82804%		2,186,000.00		10,616.74		0.00		0.00		0.00		10,616.74		10,616.74		0.00
II-B-6	5.82804%		1,748,434.17		8,491.62		0.00		0.00		0.00		8,491.62		8,491.62		0.00
II-P	0.00000%		100.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00



Total			437,153,734.17		2,123,123.11		0.00		0.00		0.00		2,123,123.11		2,123,123.11		0.00



Page 5 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution
Collection Account Report
SUMMARY
SUMMARY
												Group 6		Group 5
Principal Collections												2,674,130.53		998,757.98
Principal Withrawals												0.00		0.00
Principal Other Accounts												0.00		0.00
TOTAL NET PRINCIPAL												2,674,130.53		998,757.98
Interest Collections												1,357,750.49		813,174.82
Interest Withdrawals												-0.00		-0.00
Interest Other Accounts												0.00		0.00
Interest Fees												-28,619.57		-19,182.63
TOTAL NET INTEREST												1,329,130.92		793,992.19
TOTAL AVAILABLE FUNDS FOR DISTRIBUTION												4,003,261.45		1,792,750.17

SUMMARY
SUMMARY
						Group 4		Group 3		Group 2		Group 1		Total
Principal Collections						933,615.97		3,190,986.24		5,837,174.22		3,553,302.89		17,187,967.83
Principal Withrawals						0.00		0.00		0.00		0.00		0.00
Principal Other Accounts						0.00		0.00		0.00		0.00		0.00
TOTAL NET PRINCIPAL						933,615.97		3,190,986.24		5,837,174.22		3,553,302.89		17,187,967.83
Interest Collections						376,813.13		977,563.91		1,310,175.87		560,653.51		5,396,131.73
Interest Withdrawals						-0.00		-0.00		-0.00		-0.00		-0.00
Interest Other Accounts						0.00		0.00		0.00		0.00		0.00
Interest Fees						-5,831.23		-17,092.98		-26,749.59		-10,664.80		-108,140.80
TOTAL NET INTEREST						370,981.90		960,470.93		1,283,426.29		549,988.71		5,287,990.93
TOTAL AVAILABLE FUNDS FOR DISTRIBUTION						1,304,597.87		4,151,457.17		7,120,600.51		4,103,291.60		22,475,958.76





Page 6 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution

PRINCIPAL - COLLECTIONS
PRINCIPAL - COLLECTIONS
													Group 6		Group 5
Scheduled Principal Received													31,192.79		28,184.93
Curtailments													265,315.65		243,901.05
Prepayments In Full													2,377,622.09		726,672.00
Repurchased/Substitutions													0.00		0.00
Liquidations													0.00		0.00
Insurance Principal													0.00		0.00
Other Additional Principal													0.00		0.00
Delinquent Principal													-24,794.75		-16,718.74
Realized Losses													-0.00		-0.00
Advanced Principal													24,794.75		16,718.74
TOTAL PRINCIPAL COLLECTED													2,674,130.53		998,757.98
PRINCIPAL - COLLECTIONS
PRINCIPAL - COLLECTIONS
							Group 4		Group 3		Group 2		Group 1		Total
Scheduled Principal Received							6,954.98		19,050.94		25,702.26		14,907.65		125,993.55
Curtailments							74,160.99		62,935.30		15,651.86		6,640.67		668,605.52
Prepayments In Full							852,500.00		3,109,000.00		5,795,820.10		3,531,754.57		16,393,368.76
Repurchased/Substitutions							0.00		0.00		0.00		0.00		0.00
Liquidations							0.00		0.00		0.00		0.00		0.00
Insurance Principal							0.00		0.00		0.00		0.00		0.00
Other Additional Principal							0.00		0.00		0.00		0.00		0.00
Delinquent Principal							-3,231.62		-13,989.38		-16,898.42		-10,323.60		-85,956.51
Realized Losses							-0.00		-0.00		-0.00		-0.00		-0.00
Advanced Principal							3,231.62		13,989.38		16,898.42		10,323.60		85,956.51
TOTAL PRINCIPAL COLLECTED							933,615.97		3,190,986.24		5,837,174.22		3,553,302.89		17,187,967.83


PRINCIPAL - WITHDRAWALS

SPACE INTENTIONALLY LEFT BLANK





Page 7 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

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Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution

PRINCIPAL - OTHER ACCOUNTS
PRINCIPAL - OTHER ACCOUNTS
												Group 6		Group 5
TOTAL PRINCIPAL OTHER ACCOUNTS												0.00		0.00

PRINCIPAL - OTHER ACCOUNTS
PRINCIPAL - OTHER ACCOUNTS
						Group 4		Group 3		Group 2		Group 1		Total
TOTAL PRINCIPAL OTHER ACCOUNTS						0.00		0.00		0.00		0.00		0.00



INTEREST - COLLECTIONS
INTEREST - COLLECTIONS
												Group 6		Group 5
Scheduled Interest												1,416,499.06		843,963.15
Repurchased/Substitution Interest												0.00		0.00
Liquidation Interest												0.00		0.00
Insurance Interest												0.00		0.00
Other Additional Interest												0.00		0.00
Prepayment Interest Shortfalls												-693.79		-57.89
Delinquent Interest												-959,146.11		-523,769.03
Compensating Interest												693.79		57.89
Civil Relief Act Shortfalls												-0.00		-0.00
Interest Advanced												900,397.55		492,980.70
TOTAL INTEREST COLLECTED												1,357,750.49		813,174.82
INTEREST - COLLECTIONS
INTEREST - COLLECTIONS
						Group 4		Group 3		Group 2		Group 1		Total
Scheduled Interest						396,370.31		1,026,704.92		1,370,009.12		587,887.27		5,641,433.83
Repurchased/Substitution Interest						0.00		0.00		0.00		0.00		0.00
Liquidation Interest						0.00		0.00		0.00		0.00		0.00
Insurance Interest						0.00		0.00		0.00		0.00		0.00
Other Additional Interest						0.00		0.00		0.00		0.00		0.00
Prepayment Interest Shortfalls						-0.00		-2,313.20		-4,559.52		-1,099.99		-8,724.39
Delinquent Interest						-304,126.90		-760,655.54		-951,250.70		-423,198.82		-3,922,147.10
Compensating Interest						0.00		2,313.20		4,559.52		1,099.99		8,724.39
Civil Relief Act Shortfalls						-0.00		-0.00		-0.00		-0.00		-0.00
Interest Advanced						284,569.72		711,514.52		891,417.46		395,965.07		3,676,845.02
TOTAL INTEREST COLLECTED						376,813.13		977,563.91		1,310,175.87		560,653.51		5,396,131.73




Page 8 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution

INTEREST - WITHDRAWALS

SPACE INTENTIONALLY LEFT BLANK



INTEREST - OTHER ACCOUNTS
INTEREST - OTHER ACCOUNTS
												Group 6		Group 5
Prepayment Charges
TOTAL INTEREST OTHER ACCOUNTS												0.00		0.00

INTEREST - OTHER ACCOUNTS
INTEREST - OTHER ACCOUNTS
						Group 4		Group 3		Group 2		Group 1		Total
Prepayment Charges														0.00
TOTAL INTEREST OTHER ACCOUNTS						0.00		0.00		0.00		0.00		0.00





Page 9 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution

INTEREST - FEES
INTEREST - FEES
												Group 6		Group 5
Current Servicing Fees												28,156.08		18,917.53
Trustee Fees												463.49		265.10
TOTAL INTEREST FEES												28,619.57		19,182.63

INTEREST - FEES
INTEREST - FEES
						Group 4		Group 3		Group 2		Group 1		Total
Current Servicing Fees						5,696.55		16,741.60		26,290.26		10,463.75		106,265.77
Trustee Fees						134.69		351.37		459.33		201.05		1,875.03
TOTAL INTEREST FEES						5,831.23		17,092.98		26,749.59		10,664.80		108,140.80




Page 10 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution
Credit Enhancement Report
ACCOUNTS


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INSURANCE

SPACE INTENTIONALLY LEFT BLANK



STRUCTURAL FEATURES

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Page 11 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

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Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution
Collateral Report


COLLATERAL



													Group 6		Group 5



Loan Count:


Original												479		711
Prior												479		711
Prefunding												0		0
Scheduled Paid Offs												-0		-0
Full Voluntary Prepayments												-5		-4
Repurchases												-0		-0
Liquidations												-0		-0
Current												474		707
Principal Balance:


Original												278,094,868.25		159,058,765.92
Prior												278,094,868.25		159,058,765.92
Prefunding												0.00		0.00
Scheduled Principal												-31,192.79		-28,184.93
Partial Prepayments												-265,315.65		-243,901.05
Full Voluntary Prepayments												-2,377,622.09		-726,672.00
Repurchases												-0.00		-0.00
Liquidations												-0.00		-0.00
Current												275,420,737.72		158,060,007.94

COLLATERAL



							Group 4		Group 3		Group 2		Group 1		Total



Loan Count:
Loan Count:


Original						238		379		1,291		462		3,560
Prior						238		379		1,291		462		3,560
Prefunding						0		0		0		0		0
Scheduled Paid Offs						-0		-0		-0		-0		-0
Full Voluntary Prepayments						-4		-6		-23		-5		-47
Repurchases						-0		-0		-0		-0		-0
Liquidations						-0		-0		-0		-0		-0
Current						234		373		1,268		457		3,513
Principal Balance:


Original						80,811,931.52		210,824,381.40		275,595,220.49		120,632,004.76		1,125,017,172.34
Prior						80,811,931.52		210,824,381.40		275,595,220.49		120,632,004.76		1,125,017,172.34
Prefunding						0.00		0.00		0.00		0.00		0.00
Scheduled Principal						-6,954.98		-19,050.94		-25,702.26		-14,907.65		-125,993.55
Partial Prepayments						-74,160.99		-62,935.30		-15,651.86		-6,640.67		-668,605.52
Full Voluntary Prepayments						-852,500.00		-3,109,000.00		-5,795,820.10		-3,531,754.57		-16,393,368.76
Repurchases						-0.00		-0.00		-0.00		-0.00		-0.00
Liquidations						-0.00		-0.00		-0.00		-0.00		-0.00
Current						79,878,315.55		207,633,395.16		269,758,046.27		117,078,701.87		1,107,829,204.51







Page 12 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

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Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution

PREFUNDING

SPACE INTENTIONALLY LEFT BLANK







Page 13 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution

CHARACTERISTICS
CHARACTERISTICS
												Group 6		Group 5
Weighted Average Coupon Original												6.11230%		6.36718%
Weighted Average Coupon Prior												6.11230%		6.36718%
Weighted Average Coupon Current												6.11230%		6.36718%
Weighted Average Months to Maturity Original												358		358
Weighted Average Months to Maturity Prior												358		358
Weighted Average Months to Maturity Current												358		358
Weighted Avg Remaining Amortization Term Original												358		358
Weighted Avg Remaining Amortization Term Prior												358		358
Weighted Avg Remaining Amortization Term Current												358		358
Weighted Average Seasoning Original												1.43		1.48
Weighted Average Seasoning Prior												1.43		1.48
Weighted Average Seasoning Current												1.43		1.48
CHARACTERISTICS
CHARACTERISTICS
						Group 4		Group 3		Group 2		Group 1		Total
Weighted Average Coupon Original						5.88582%		5.84394%		5.96525%		5.84807%		6.01742%
Weighted Average Coupon Prior						5.88582%		5.84394%		5.96525%		5.84807%		6.01742%
Weighted Average Coupon Current						5.88582%		5.84394%		5.96525%		5.84807%		6.01742%
Weighted Average Months to Maturity Original						358		357		357		356		358
Weighted Average Months to Maturity Prior						358		357		357		356		358
Weighted Average Months to Maturity Current						358		357		357		356		358
Weighted Avg Remaining Amortization Term Original						358		357		357		356		358
Weighted Avg Remaining Amortization Term Prior						358		357		357		356		358
Weighted Avg Remaining Amortization Term Current						358		357		357		356		358
Weighted Average Seasoning Original						2.35		2.60		2.73		3.45		2.25
Weighted Average Seasoning Prior						2.35		2.60		2.73		3.45		2.25
Weighted Average Seasoning Current						2.35		2.60		2.73		3.45		2.25





Page 14 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution






Page 15 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution

ARM CHARACTERISTICS
ARM CHARACTERISTICS
												Group 6		Group 5
Weighted Average Margin Original												2.74858%		2.75129%
Weighted Average Margin Prior												2.74858%		2.75129%
Weighted Average Margin Current												2.74858%		2.75129%
Weighted Average Max Rate Original												12.11230%		12.36582%
Weighted Average Max Rate Prior												12.11230%		12.36582%
Weighted Average Max Rate Current												12.11230%		12.36582%
Weighted Average Min Rate Original												6.11230%		6.36718%
Weighted Average Min Rate Prior												6.11230%		6.36718%
Weighted Average Min Rate Current												6.11230%		6.36718%
Weighted Average Cap Up Original												1.03209%		1.88785%
Weighted Average Cap Up Prior												1.03209%		1.88785%
Weighted Average Cap Up Current												1.03209%		1.88785%
Weighted Average Cap Down Original												1.03209%		1.88785%
Weighted Average Cap Down Prior												1.03209%		1.88785%
Weighted Average Cap Down Current												1.03209%		1.88785%

ARM CHARACTERISTICS
ARM CHARACTERISTICS
						Group 4		Group 3		Group 2		Group 1		Total
Weighted Average Margin Original						2.51798%		2.39696%		2.45142%		2.43907%		2.56052%
Weighted Average Margin Prior						2.51798%		2.39696%		2.45142%		2.43907%		2.56052%
Weighted Average Margin Current						2.51798%		2.39696%		2.45142%		2.43907%		2.56052%
Weighted Average Max Rate Original						11.41000%		11.47284%		11.57190%		11.60147%		11.79071%
Weighted Average Max Rate Prior						11.41000%		11.47284%		11.57190%		11.60147%		11.79071%
Weighted Average Max Rate Current						11.41000%		11.47284%		11.57190%		11.60147%		11.79071%
Weighted Average Min Rate Original						5.55237%		4.15482%		4.75221%		5.43784%		5.33579%
Weighted Average Min Rate Prior						5.55237%		4.15482%		4.75221%		5.43784%		5.33579%
Weighted Average Min Rate Current						5.55237%		4.15482%		4.75221%		5.43784%		5.33579%
Weighted Average Cap Up Original						1.62658%		1.73943%		1.98235%		1.93242%		1.65766%
Weighted Average Cap Up Prior						1.62658%		1.73943%		1.98235%		1.93242%		1.65766%
Weighted Average Cap Up Current						1.62658%		1.73943%		1.98235%		1.93242%		1.65766%
Weighted Average Cap Down Original						1.62658%		1.73943%		1.98235%		1.93242%		1.65766%
Weighted Average Cap Down Prior						1.62658%		1.73943%		1.98235%		1.93242%		1.65766%
Weighted Average Cap Down Current						1.62658%		1.73943%		1.98235%		1.93242%		1.65766%





Page 16 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution

SERVICING FEES & ADVANCES

													Group 6		Group 5




Current Servicing Fees												28,156.08		18,917.53
Delinquent Servicing Fees												58,748.57		30,788.33
TOTAL SERVICING FEES												86,904.64		49,705.86


Total Servicing Fees												86,904.64		49,705.86
Compensating Interest												-693.79		-57.89
Delinquent Servicing Fees												-58,748.57		-30,788.33
COLLECTED SERVICING FEES												27,462.29		18,859.64


Total Advanced Interest												900,397.55		492,980.70
Total Advanced Principal												24,794.75		16,718.74
Aggregate Advances with respect to this Distribution												925,192.30		509,699.44

SERVICING FEES & ADVANCES
SERVICING FEES & ADVANCES

							Group 4		Group 3		Group 2		Group 1		Total




Current Servicing Fees						5,696.55		16,741.60		26,290.26		10,463.75		106,265.77
Delinquent Servicing Fees						19,557.18		49,141.01		59,833.24		27,233.76		245,302.09
TOTAL SERVICING FEES						25,253.73		65,882.62		86,123.50		37,697.50		351,567.85


Total Servicing Fees						25,253.73		65,882.62		86,123.50		37,697.50		351,567.85
Compensating Interest						-0.00		-2,313.20		-4,559.52		-1,099.99		-8,724.39
Delinquent Servicing Fees						-19,557.18		-49,141.01		-59,833.24		-27,233.76		-245,302.09
COLLECTED SERVICING FEES						5,696.54		14,428.40		21,730.73		9,363.75		97,541.36


Total Advanced Interest						284,569.72		711,514.52		891,417.46		395,965.07		3,676,845.02
Total Advanced Principal						3,231.62		13,989.38		16,898.42		10,323.60		85,956.51
Aggregate Advances with respect to this Distribution						287,801.34		725,503.90		908,315.88		406,288.67		3,762,801.51







Page 17 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution

ADDITIONAL COLLATERAL INFORMATION
												Group 6		Group 5
Prepayment Interest Shortfall (PPIS)												693.79		57.89
Compensating Interest												-693.79		-57.89
Net Prepayment Interest Shortfall (PPIS)												0.00		0.00
Weighted Average Net Mortgage Rate												5.735299%		5.990180%

ADDITIONAL COLLATERAL INFORMATION
						Group 4		Group 3		Group 2		Group 1		Total
Prepayment Interest Shortfall (PPIS)						0.00		2,313.20		4,559.52		1,099.99		8,724.39
Compensating Interest						-0.00		-2,313.20		-4,559.52		-1,099.99		-8,724.39
Net Prepayment Interest Shortfall (PPIS)						0.00		0.00		0.00		0.00		0.00
Weighted Average Net Mortgage Rate						5.508819%		5.466944%		5.588310%		5.471073%		5.640438%




Page 18 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution
Delinquency Report

	TOTAL
					< 1 PAYMENT		1 PAYMENT		2 PAYMENTS		3+ PAYMENTS		TOTAL
	DELINQUENT		Balance				29,053,842.02		370,000.00		159,444.41		29,583,286.43
			% Balance				2.62%		0.03%		0.01%		2.67%
			# Loans				102		1		1		104
			% # Loans				2.90%		0.03%		0.03%		2.96%
	FORECLOSURE		Balance		0.00		0.00		0.00		0.00		0.00
			% Balance		0.00%		0.00%		0.00%		0.00%		0.00%
			# Loans		0		0		0		0		0
			% # Loans		0.00%		0.00%		0.00%		0.00%		0.00%
	BANKRUPTCY		Balance		0.00		0.00		0.00		0.00		0.00
			% Balance		0.00%		0.00%		0.00%		0.00%		0.00%
			# Loans		0		0		0		0		0
			% # Loans		0.00%		0.00%		0.00%		0.00%		0.00%
	REO		Balance		0.00		0.00		0.00		0.00		0.00
			% Balance		0.00%		0.00%		0.00%		0.00%		0.00%
			# Loans		0		0		0		0		0
			% # Loans		0.00%		0.00%		0.00%		0.00%		0.00%
	TOTAL		Balance		0.00		29,053,842.02		370,000.00		159,444.41		29,583,286.43
			% Balance		0.00%		2.62%		0.03%		0.01%		2.67%
			# Loans		0		102		1		1		104
			% # Loans		0.00%		2.90%		0.03%		0.03%		2.96%









Page 19 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution


	GROUP 1
					< 1 PAYMENT		1 PAYMENT		2 PAYMENTS		3+ PAYMENTS		TOTAL
	DELINQUENT		Balance				3,942,168.51		0.00		0.00		3,942,168.51
			% Balance				3.37%		0.00%		0.00%		3.37%
			# Loans				23		0		0		23
			% # Loans				5.03%		0.00%		0.00%		5.03%
	FORECLOSURE		Balance		0.00		0.00		0.00		0.00		0.00
			% Balance		0.00%		0.00%		0.00%		0.00%		0.00%
			# Loans		0		0		0		0		0
			% # Loans		0.00%		0.00%		0.00%		0.00%		0.00%
	BANKRUPTCY		Balance		0.00		0.00		0.00		0.00		0.00
			% Balance		0.00%		0.00%		0.00%		0.00%		0.00%
			# Loans		0		0		0		0		0
			% # Loans		0.00%		0.00%		0.00%		0.00%		0.00%
	REO		Balance		0.00		0.00		0.00		0.00		0.00
			% Balance		0.00%		0.00%		0.00%		0.00%		0.00%
			# Loans		0		0		0		0		0
			% # Loans		0.00%		0.00%		0.00%		0.00%		0.00%
	TOTAL		Balance		0.00		3,942,168.51		0.00		0.00		3,942,168.51
			% Balance		0.00%		3.37%		0.00%		0.00%		3.37%
			# Loans		0		23		0		0		23
			% # Loans		0.00%		5.03%		0.00%		0.00%		5.03%










Page 20 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution

	GROUP 2
					< 1 PAYMENT		1 PAYMENT		2 PAYMENTS		3+ PAYMENTS		TOTAL
	DELINQUENT		Balance				10,913,061.61		0.00		159,444.41		11,072,506.02
			% Balance				4.05%		0.00%		0.06%		4.10%
			# Loans				51		0		1		52
			% # Loans				4.02%		0.00%		0.08%		4.10%
	FORECLOSURE		Balance		0.00		0.00		0.00		0.00		0.00
			% Balance		0.00%		0.00%		0.00%		0.00%		0.00%
			# Loans		0		0		0		0		0
			% # Loans		0.00%		0.00%		0.00%		0.00%		0.00%
	BANKRUPTCY		Balance		0.00		0.00		0.00		0.00		0.00
			% Balance		0.00%		0.00%		0.00%		0.00%		0.00%
			# Loans		0		0		0		0		0
			% # Loans		0.00%		0.00%		0.00%		0.00%		0.00%
	REO		Balance		0.00		0.00		0.00		0.00		0.00
			% Balance		0.00%		0.00%		0.00%		0.00%		0.00%
			# Loans		0		0		0		0		0
			% # Loans		0.00%		0.00%		0.00%		0.00%		0.00%
	TOTAL		Balance		0.00		10,913,061.61		0.00		159,444.41		11,072,506.02
			% Balance		0.00%		4.05%		0.00%		0.06%		4.10%
			# Loans		0		51		0		1		52
			% # Loans		0.00%		4.02%		0.00%		0.08%		4.10%










Page 21 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution

	GROUP 3
					< 1 PAYMENT		1 PAYMENT		2 PAYMENTS		3+ PAYMENTS		TOTAL
	DELINQUENT		Balance				5,881,639.36		370,000.00		0.00		6,251,639.36
			% Balance				2.83%		0.18%		0.00%		3.01%
			# Loans				13		1		0		14
			% # Loans				3.49%		0.27%		0.00%		3.75%
	FORECLOSURE		Balance		0.00		0.00		0.00		0.00		0.00
			% Balance		0.00%		0.00%		0.00%		0.00%		0.00%
			# Loans		0		0		0		0		0
			% # Loans		0.00%		0.00%		0.00%		0.00%		0.00%
	BANKRUPTCY		Balance		0.00		0.00		0.00		0.00		0.00
			% Balance		0.00%		0.00%		0.00%		0.00%		0.00%
			# Loans		0		0		0		0		0
			% # Loans		0.00%		0.00%		0.00%		0.00%		0.00%
	REO		Balance		0.00		0.00		0.00		0.00		0.00
			% Balance		0.00%		0.00%		0.00%		0.00%		0.00%
			# Loans		0		0		0		0		0
			% # Loans		0.00%		0.00%		0.00%		0.00%		0.00%
	TOTAL		Balance		0.00		5,881,639.36		370,000.00		0.00		6,251,639.36
			% Balance		0.00%		2.83%		0.18%		0.00%		3.01%
			# Loans		0		13		1		0		14
			% # Loans		0.00%		3.49%		0.27%		0.00%		3.75%










Page 22 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution

	GROUP 4
					< 1 PAYMENT		1 PAYMENT		2 PAYMENTS		3+ PAYMENTS		TOTAL
	DELINQUENT		Balance				2,948,734.87		0.00		0.00		2,948,734.87
			% Balance				3.69%		0.00%		0.00%		3.69%
			# Loans				5		0		0		5
			% # Loans				2.14%		0.00%		0.00%		2.14%
	FORECLOSURE		Balance		0.00		0.00		0.00		0.00		0.00
			% Balance		0.00%		0.00%		0.00%		0.00%		0.00%
			# Loans		0		0		0		0		0
			% # Loans		0.00%		0.00%		0.00%		0.00%		0.00%
	BANKRUPTCY		Balance		0.00		0.00		0.00		0.00		0.00
			% Balance		0.00%		0.00%		0.00%		0.00%		0.00%
			# Loans		0		0		0		0		0
			% # Loans		0.00%		0.00%		0.00%		0.00%		0.00%
	REO		Balance		0.00		0.00		0.00		0.00		0.00
			% Balance		0.00%		0.00%		0.00%		0.00%		0.00%
			# Loans		0		0		0		0		0
			% # Loans		0.00%		0.00%		0.00%		0.00%		0.00%
	TOTAL		Balance		0.00		2,948,734.87		0.00		0.00		2,948,734.87
			% Balance		0.00%		3.69%		0.00%		0.00%		3.69%
			# Loans		0		5		0		0		5
			% # Loans		0.00%		2.14%		0.00%		0.00%		2.14%










Page 23 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution

	GROUP 5
					< 1 PAYMENT		1 PAYMENT		2 PAYMENTS		3+ PAYMENTS		TOTAL
	DELINQUENT		Balance				543,201.67		0.00		0.00		543,201.67
			% Balance				0.34%		0.00%		0.00%		0.34%
			# Loans				3		0		0		3
			% # Loans				0.42%		0.00%		0.00%		0.42%
	FORECLOSURE		Balance		0.00		0.00		0.00		0.00		0.00
			% Balance		0.00%		0.00%		0.00%		0.00%		0.00%
			# Loans		0		0		0		0		0
			% # Loans		0.00%		0.00%		0.00%		0.00%		0.00%
	BANKRUPTCY		Balance		0.00		0.00		0.00		0.00		0.00
			% Balance		0.00%		0.00%		0.00%		0.00%		0.00%
			# Loans		0		0		0		0		0
			% # Loans		0.00%		0.00%		0.00%		0.00%		0.00%
	REO		Balance		0.00		0.00		0.00		0.00		0.00
			% Balance		0.00%		0.00%		0.00%		0.00%		0.00%
			# Loans		0		0		0		0		0
			% # Loans		0.00%		0.00%		0.00%		0.00%		0.00%
	TOTAL		Balance		0.00		543,201.67		0.00		0.00		543,201.67
			% Balance		0.00%		0.34%		0.00%		0.00%		0.34%
			# Loans		0		3		0		0		3
			% # Loans		0.00%		0.42%		0.00%		0.00%		0.42%










Page 24 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution

	GROUP 6
					< 1 PAYMENT		1 PAYMENT		2 PAYMENTS		3+ PAYMENTS		TOTAL
	DELINQUENT		Balance				4,825,036.00		0.00		0.00		4,825,036.00
			% Balance				1.75%		0.00%		0.00%		1.75%
			# Loans				7		0		0		7
			% # Loans				1.48%		0.00%		0.00%		1.48%
	FORECLOSURE		Balance		0.00		0.00		0.00		0.00		0.00
			% Balance		0.00%		0.00%		0.00%		0.00%		0.00%
			# Loans		0		0		0		0		0
			% # Loans		0.00%		0.00%		0.00%		0.00%		0.00%
	BANKRUPTCY		Balance		0.00		0.00		0.00		0.00		0.00
			% Balance		0.00%		0.00%		0.00%		0.00%		0.00%
			# Loans		0		0		0		0		0
			% # Loans		0.00%		0.00%		0.00%		0.00%		0.00%
	REO		Balance		0.00		0.00		0.00		0.00		0.00
			% Balance		0.00%		0.00%		0.00%		0.00%		0.00%
			# Loans		0		0		0		0		0
			% # Loans		0.00%		0.00%		0.00%		0.00%		0.00%
	TOTAL		Balance		0.00		4,825,036.00		0.00		0.00		4,825,036.00
			% Balance		0.00%		1.75%		0.00%		0.00%		1.75%
			# Loans		0		7		0		0		7
			% # Loans		0.00%		1.48%		0.00%		0.00%		1.48%









Page 25 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution
REO Report
Loan Number			Original		Stated				Current		State &

														First
&			Principal		Principal		Paid to		Note		LTV at		Original		Payment

Loan Group			Balance		Balance		Date		Rate		Origination		Term		Date




TOTAL


Page 26 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution
Foreclosure Report
Loan Number			Original		Stated				Current		State &

														First
&			Principal		Principal		Paid to		Note		LTV at		Original		Payment

Loan Group			Balance		Balance		Date		Rate		Origination		Term		Date




TOTAL


Page 27 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution
Prepayment Report

VOLUNTARY PREPAYMENTS
VOLUNTARY PREPAYMENTS

													Group 6		Group 5




Current


Number of Paid in Full Loans												5		4
Number of Repurchased Loans												0		0
Total Number of Loans Prepaid in Full												5		4
Curtailments Amount												265,315.65		243,901.05
Paid in Full Balance												2,377,622.09		726,672.00
Repurchased Loans Balance												0.00		0.00
Total Prepayment Amount												2,642,937.74		970,573.05

Cumulative


Number of Paid in Full Loans												5		4
Number of Repurchased Loans												0		0
Total Number of Loans Prepaid in Full												5		4
Paid in Full Balance												2,377,622.09		726,672.00
Repurchased Loans Balance												0.00		0.00
Curtailments Amount												265,315.65		243,901.05
Total Prepayment Amount												2,642,937.74		970,573.05

VOLUNTARY PREPAYMENTS

							Group 4		Group 3		Group 2		Group 1		Total




Current


Number of Paid in Full Loans						4		6		23		5		47
Number of Repurchased Loans						0		0		0		0		0
Total Number of Loans Prepaid in Full						4		6		23		5		47
Curtailments Amount						74,160.99		62,935.30		15,651.86		6,640.67		668,605.52
Paid in Full Balance						852,500.00		3,109,000.00		5,795,820.10		3,531,754.57		16,393,368.76
Repurchased Loans Balance						0.00		0.00		0.00		0.00		0.00
Total Prepayment Amount						926,660.99		3,171,935.30		5,811,471.96		3,538,395.24		17,061,974.28

Cumulative


Number of Paid in Full Loans						4		6		23		5		47
Number of Repurchased Loans						0		0		0		0		0
Total Number of Loans Prepaid in Full						4		6		23		5		47
Paid in Full Balance						852,500.00		3,109,000.00		5,795,820.10		3,531,754.57		16,393,368.76
Repurchased Loans Balance						0.00		0.00		0.00		0.00		0.00
Curtailments Amount						74,160.99		62,935.30		15,651.86		6,640.67		668,605.52
Total Prepayment Amount						926,660.99		3,171,935.30		5,811,471.96		3,538,395.24		17,061,974.28





Page 28 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution






Page 29 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution

VOLUNTARY PREPAYMENTS RATES
VOLUNTARY PREPAYMENTS RATES

													Group 6		Group 5



SMM												0.95%		0.61%
3 Months Avg SMM												0.95%		0.61%
12 Months Avg SMM												0.95%		0.61%
Avg SMM Since Cut-off												0.95%		0.61%


CPR												10.83%		7.08%
3 Months Avg CPR												10.83%		7.08%
12 Months Avg CPR												10.83%		7.08%
Avg CPR Since Cut-off												10.83%		7.08%


PSA												3,795.83%		2,389.18%
3 Months Avg PSA Approximation												3,795.84%		2,389.20%
12 Months Avg PSA Approximation												3,795.84%		2,389.20%
Avg PSA Since Cut-off Approximation												3,795.84%		2,389.20%

VOLUNTARY PREPAYMENTS RATES



							Group 4		Group 3		Group 2		Group 1		Total



SMM						1.15%		1.50%		2.11%		2.93%		1.52%
3 Months Avg SMM						1.15%		1.50%		2.11%		2.93%		1.52%
12 Months Avg SMM						1.15%		1.50%		2.11%		2.93%		1.52%
Avg SMM Since Cut-off						1.15%		1.50%		2.11%		2.93%		1.52%


CPR						12.93%		16.63%		22.57%		30.04%		16.76%
3 Months Avg CPR						12.93%		16.63%		22.57%		30.04%		16.76%
12 Months Avg CPR						12.93%		16.63%		22.57%		30.04%		16.76%
Avg CPR Since Cut-off						12.93%		16.63%		22.57%		30.04%		16.76%


PSA						2,752.77%		3,192.92%		4,127.61%		4,347.90%		3,716.53%
3 Months Avg PSA Approximation						2,752.78%		3,192.93%		4,127.62%		4,347.90%		3,716.54%
12 Months Avg PSA Approximation						2,752.78%		3,192.93%		4,127.62%		4,347.90%		3,716.54%
Avg PSA Since Cut-off Approximation						2,752.78%		3,192.93%		4,127.62%		4,347.90%		3,716.54%







Page 30 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution











Page 31 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution

PREPAYMENT CALCULATION METHODOLOGY

Single Monthly Mortality (SMM): (Voluntary partial and full prepayments + Repurchases + Liquidations )/(Beg Principal Balance - Sched Principal) Conditional Prepayment Rate (CPR): 1-((1-SMM)^12) PSA Standard Prepayment Model: CPR/(0.002min(30,WAS)) Average SMM over period between nth month and mth month (AvgSMMn,m): [(1-SMMn)(1-SMMn+1)...(1-SMMm)]^(1/months in period n,m) Conditional Prepayment Rate (CPR): 1-((1-SMM)^12) Average PSA Approximation over period between the nth month and mth month: AvgCPRn,m/(0.002*Avg WASn,m)) Average WASn,m: (min(30,WASn)+min(30,WASn+1)+...+min(30,WASm)/(number of months in the period n,m) Weighted Average Seasoning (WAS) Dates correspond to distribution dates. Note: Prepayment rates are calculated since deal issue date and include partial and full voluntary prepayments, liquidations, and repurchases.













Page 32 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution
Prepayment Detail Report
Prepayment Detail Report - Mortgage Loans Prepaid in Full During Current Distribution
Loan Number			Original							Current		State &		Type Prepayment		First
Loan Number			Original							Current		State &		Type Prepayment

&		Loan	Principal		Prepayment			Prepayment		Note		LTV at		&		Payment

Loan Group		Status	Balance		Amount			Date		Rate		Origination		Original Term		Date

120387194 2			325,774.00		325,673.74			13-Oct-2005		5.625%		CA - 80.00%		Paid Off - 360		01-Apr-2005
			325,774.00

120388818 2			157,500.00		156,218.68			04-Oct-2005		5.250%		FL - 68.78%		Paid Off - 360		01-Feb-2005
120388818 2					156,218.68			04-Oct-2005		5.250%		FL - 68.78%		Paid Off - 360		01-Feb-2005
120394788 2			354,000.00		352,267.06			10-Oct-2005		6.000%		CA - 60.00%		Paid Off - 360		01-Jun-2005
120394788 2					352,267.06			10-Oct-2005		6.000%		CA - 60.00%		Paid Off - 360		01-Jun-2005
120396138 2			328,000.00		328,000.00			27-Sep-2005		6.000%		MA - 80.00%		Paid Off - 360		01-Jun-2005
120396138 2					328,000.00			27-Sep-2005		6.000%		MA - 80.00%		Paid Off - 360		01-Jun-2005
120397448 2			98,000.00		97,705.85			05-Oct-2005		6.000%		AZ - 66.00%		Paid Off - 360		01-Jul-2005
120397448 2					97,705.85			05-Oct-2005		6.000%		AZ - 66.00%		Paid Off - 360		01-Jul-2005
120397471 2			252,150.00		252,150.00			04-Oct-2005		6.000%		AZ - 80.00%		Paid Off - 360		01-Jul-2005
120397471 2					252,150.00			04-Oct-2005		6.000%		AZ - 80.00%		Paid Off - 360		01-Jul-2005
120397473 4			115,500.00		115,500.00			04-Oct-2005		6.875%		AZ - 80.00%		Paid Off - 360		01-Jul-2005
120397473 4					115,500.00			04-Oct-2005		6.875%		AZ - 80.00%		Paid Off - 360		01-Jul-2005
120398247 2			308,000.00		307,998.34			30-Sep-2005		6.250%		CA - 80.00%		Paid Off - 360		01-Jul-2005
120398247 2					307,998.34			30-Sep-2005		6.250%		CA - 80.00%		Paid Off - 360		01-Jul-2005
120880646 1			2,340,000.00		2,340,000.00			30-Sep-2005		5.375%		NY - 48.75%		Paid Off - 360		01-Jun-2005
120880646 1					2,340,000.00			30-Sep-2005		5.375%		NY - 48.75%		Paid Off - 360		01-Jun-2005
121320850 1			300,000.00		299,986.47			28-Sep-2005		5.375%		CA - 76.92%		Paid Off - 360		01-May-2005
121320850 1					299,986.47			28-Sep-2005		5.375%		CA - 76.92%		Paid Off - 360		01-May-2005
121368269 5			68,000.00		68,000.00			30-Sep-2005		7.000%		NC - 80.00%		Paid Off - 360		01-Jul-2005
121368269 5					68,000.00			30-Sep-2005		7.000%		NC - 80.00%		Paid Off - 360		01-Jul-2005
121410716 5			130,672.00		130,672.00			29-Sep-2005		6.625%		MN - 79.24%		Paid Off - 360		01-Jul-2005
121410716 5					130,672.00			29-Sep-2005		6.625%		MN - 79.24%		Paid Off - 360		01-Jul-2005
121447731 6			364,720.00		364,720.00			30-Sep-2005		6.375%		CA - 80.00%		Paid Off - 360		01-Sep-2005
121447731 6					364,720.00			30-Sep-2005		6.375%		CA - 80.00%		Paid Off - 360		01-Sep-2005
121517852 6			425,445.00		425,445.00			23-Sep-2005		6.250%		CA - 80.00%		Paid Off - 360		01-Aug-2005
121517852 6					425,445.00			23-Sep-2005		6.250%		CA - 80.00%		Paid Off - 360		01-Aug-2005
121546721 2			338,050.00		338,050.00			28-Sep-2005		5.750%		CA - 80.00%		Paid Off - 360		01-Sep-2005
121546721 2					338,050.00			28-Sep-2005		5.750%		CA - 80.00%		Paid Off - 360		01-Sep-2005
121562965 2			359,650.00		359,650.00			15-Sep-2005		6.000%		CA - 76.52%		Paid Off - 360		01-Jul-2005
121562965 2					359,650.00			15-Sep-2005		6.000%		CA - 76.52%		Paid Off - 360		01-Jul-2005
121620175 4			168,000.00		168,000.00			11-Oct-2005		7.750%		MD - 80.00%		Paid Off - 360		01-Sep-2005
121620175 4					168,000.00			11-Oct-2005		7.750%		MD - 80.00%		Paid Off - 360		01-Sep-2005
121628782 5			264,000.00		264,000.00			12-Oct-2005		6.750%		IL - 80.00%		Paid Off - 360		01-Sep-2005
121628782 5					264,000.00			12-Oct-2005		6.750%		IL - 80.00%		Paid Off - 360		01-Sep-2005
121646915 4			195,000.00		195,000.00			03-Oct-2005		5.750%		HI - 69.15%		Paid Off - 360		01-Sep-2005
121646915 4					195,000.00			03-Oct-2005		5.750%		HI - 69.15%		Paid Off - 360		01-Sep-2005
121651248 6			568,000.00		568,000.00			03-Oct-2005		6.250%		CA - 74.93%		Paid Off - 360		01-Sep-2005
121651248 6					568,000.00			03-Oct-2005		6.250%		CA - 74.93%		Paid Off - 360		01-Sep-2005
121662276 6			520,000.00		519,457.09			30-Sep-2005		5.750%		CA - 67.62%		Paid Off - 360		01-Sep-2005
121662276 6					519,457.09			30-Sep-2005		5.750%		CA - 67.62%		Paid Off - 360		01-Sep-2005
121666129 2			408,000.00		408,000.00			05-Oct-2005		7.250%		CA - 80.00%		Paid Off - 360		01-Aug-2005
121666129 2					408,000.00			05-Oct-2005		7.250%		CA - 80.00%		Paid Off - 360		01-Aug-2005
121674166 5			264,000.00		264,000.00			04-Oct-2005		6.000%		VA - 80.00%		Paid Off - 360		01-Sep-2005
121674166 5					264,000.00			04-Oct-2005		6.000%		VA - 80.00%		Paid Off - 360		01-Sep-2005
121712105 6			500,000.00		500,000.00			12-Oct-2005		6.125%		CA - 78.13%		Paid Off - 360		01-Oct-2005
121712105 6					500,000.00			12-Oct-2005		6.125%		CA - 78.13%		Paid Off - 360		01-Oct-2005
121715421 3			945,000.00		945,000.00			30-Sep-2005		7.250%		CA - 70.00%		Paid Off - 360		01-Jul-2005
121715421 3					945,000.00			30-Sep-2005		7.250%		CA - 70.00%		Paid Off - 360		01-Jul-2005
121722900 1			362,050.00		362,050.00			13-Oct-2005		5.500%		CA - 65.00%		Paid Off - 360		01-Aug-2005
121722900 1					362,050.00			13-Oct-2005		5.500%		CA - 65.00%		Paid Off - 360		01-Aug-2005
121723009 2			244,800.00		244,800.00			06-Oct-2005		6.125%		AZ - 80.00%		Paid Off - 360		01-Aug-2005
121723009 2					244,800.00			06-Oct-2005		6.125%		AZ - 80.00%		Paid Off - 360		01-Aug-2005
121723036 2			124,000.00		124,000.00			16-Sep-2005		6.625%		OR - 80.00%		Paid Off - 360		01-Aug-2005
121723036 2					124,000.00			16-Sep-2005		6.625%		OR - 80.00%		Paid Off - 360		01-Aug-2005
121723065 2			228,000.00		227,615.80			16-Sep-2005		6.875%		OR - 87.00%		Paid Off - 360		01-Aug-2005
121723065 2					227,615.80			16-Sep-2005		6.875%		OR - 87.00%		Paid Off - 360		01-Aug-2005
121723416 3			460,000.00		460,000.00			25-Aug-2005		5.750%		CA - 68.66%		Paid Off - 360		01-Aug-2005
121723416 3					460,000.00			25-Aug-2005		5.750%		CA - 68.66%		Paid Off - 360		01-Aug-2005
121723905 2			276,250.00		276,250.00			30-Sep-2005		6.875%		IL - 94.99%		Paid Off - 360		01-Jul-2005
121723905 2					276,250.00			30-Sep-2005		6.875%		IL - 94.99%		Paid Off - 360		01-Jul-2005
121724405 3			409,500.00		409,500.00			26-Sep-2005		5.875%		CA - 65.00%		Paid Off - 360		01-Aug-2005
121724405 3					409,500.00			26-Sep-2005		5.875%		CA - 65.00%		Paid Off - 360		01-Aug-2005
121725498 3			382,500.00		382,500.00			16-Sep-2005		6.500%		FL - 69.93%		Paid Off - 360		01-May-2005
121725498 3					382,500.00			16-Sep-2005		6.500%		FL - 69.93%		Paid Off - 360		01-May-2005
121725522 2			140,250.00		140,250.00			19-Sep-2005		6.500%		MO - 85.00%		Paid Off - 360		01-Jul-2005
121725522 2					140,250.00			19-Sep-2005		6.500%		MO - 85.00%		Paid Off - 360		01-Jul-2005
121725524 2			117,200.00		117,120.63			16-Sep-2005		6.250%		MI - 80.00%		Paid Off - 360		01-Jul-2005
121725524 2					117,120.63			16-Sep-2005		6.250%		MI - 80.00%		Paid Off - 360		01-Jul-2005
121727843 2			163,520.00		163,520.00			20-Sep-2005		6.875%		FL - 80.00%		Paid Off - 360		01-Sep-2005
121727843 2					163,520.00			20-Sep-2005		6.875%		FL - 80.00%		Paid Off - 360		01-Sep-2005
121727864 3			500,000.00		500,000.00			22-Sep-2005		7.125%		FL - 89.64%		Paid Off - 360		01-Aug-2005
121727864 3					500,000.00					7.125%		FL - 89.64%		Paid Off - 360


Page 33 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution

Prepayment Detail Report - Mortgage Loans Prepaid in Full During Current Distribution
Loan Number			Original							Current		State &		Type Prepayment		First
Loan Number			Original							Current		State &		Type Prepayment

&		Loan	Principal		Prepayment			Prepayment		Note		LTV at		&		Payment

Loan Group		Status	Balance		Amount			Date		Rate		Origination		Original Term		Date

121727999 2			102,000.00		102,000.00			03-Oct-2005		6.000%		FL - 64.97%		Paid Off - 360		01-Sep-2005
			102,000.00

121728014 2			428,000.00		428,000.00			16-Sep-2005		6.625%		CA - 80.00%		Paid Off - 360		01-Jun-2005
121728014 2					428,000.00			16-Sep-2005		6.625%		CA - 80.00%		Paid Off - 360		01-Jun-2005
121728135 2			318,750.00		318,750.00			30-Sep-2005		6.500%		CA - 85.00%		Paid Off - 360		01-Aug-2005
121728135 2					318,750.00			30-Sep-2005		6.500%		CA - 85.00%		Paid Off - 360		01-Aug-2005
121728171 2			256,000.00		256,000.00			28-Sep-2005		6.125%		CA - 80.00%		Paid Off - 360		01-Sep-2005
121728171 2					256,000.00			28-Sep-2005		6.125%		CA - 80.00%		Paid Off - 360		01-Sep-2005
121728173 2			176,000.00		176,000.00			28-Sep-2005		5.500%		CA - 80.00%		Paid Off - 360		01-Sep-2005
121728173 2					176,000.00			28-Sep-2005		5.500%		CA - 80.00%		Paid Off - 360		01-Sep-2005
121730088 3			412,000.00		412,000.00			03-Oct-2005		7.125%		NY - 80.00%		Paid Off - 360		01-Sep-2005
121730088 3					412,000.00			03-Oct-2005		7.125%		NY - 80.00%		Paid Off - 360		01-Sep-2005
121835115 1			270,000.00		269,718.10			05-Oct-2005		5.750%		CA - 60.00%		Paid Off - 360		01-Sep-2005
121835115 1					269,718.10			05-Oct-2005		5.750%		CA - 60.00%		Paid Off - 360		01-Sep-2005
121847748 2			295,800.00		295,800.00			14-Oct-2005		6.125%		CA - 52.82%		Paid Off - 360		01-Oct-2005
121847748 2					295,800.00			14-Oct-2005		6.125%		CA - 52.82%		Paid Off - 360		01-Oct-2005
121872208 1			260,000.00		260,000.00			15-Sep-2005		6.000%		FL - 72.22%		Paid Off - 360		01-Sep-2005
121872208 1					260,000.00			15-Sep-2005		6.000%		FL - 72.22%		Paid Off - 360		01-Sep-2005
121878010 4			374,000.00		374,000.00			13-Oct-2005		6.625%		SC - 79.92%		Paid Off - 360		01-Oct-2005
121878010 4					374,000.00			13-Oct-2005		6.625%		SC - 79.92%		Paid Off - 360		01-Oct-2005


TOTAL			16,398,081.00		16,393,368.76
TOTAL


Page 34 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution
Realized Loss Report

COLLATERAL REALIZED LOSSES



													Group 6		Group 5


Current
Current



Number of Loans Liquidated												0		0
Collateral Principal Realized Loss/(Gain) Amount												0.00		0.00
Collateral Interest Realized Loss/(Gain) Amount												0.00		0.00
Net Liquidation Proceeds												0.00		0.00

Cumulative
Cumulative



Number of Loans Liquidated												0		0
Collateral Realized Loss/(Gain) Amount												0.00		0.00
Net Liquidation Proceeds												0.00		0.00





		Special Hazard Loss Coverage Amt
		Fraud Loss Coverage Amt
		Bankruptcy Loss Coverage Amt

COLLATERAL REALIZED LOSSES



							Group 4		Group 3		Group 2		Group 1		Total


Current
Current



Number of Loans Liquidated						0		0		0		0		0
Collateral Principal Realized Loss/(Gain) Amount						0.00		0.00		0.00		0.00		0.00
Collateral Interest Realized Loss/(Gain) Amount						0.00		0.00		0.00		0.00		0.00
Net Liquidation Proceeds						0.00		0.00		0.00		0.00		0.00

Cumulative
Cumulative



Number of Loans Liquidated						0		0		0		0		0
Collateral Realized Loss/(Gain) Amount						0.00		0.00		0.00		0.00		0.00
Net Liquidation Proceeds						0.00		0.00		0.00		0.00		0.00





		Special Hazard Loss Coverage Amt														6,901,766.00
		Fraud Loss Coverage Amt														20,635,906.00
		Bankruptcy Loss Coverage Amt														266,914.00







Page 35 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution





Page 36 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution


DEFAULT SPEEDS



													Group 6		Group 5



MDR												0.00%		0.00%
3 Months Avg MDR												0.00%		0.00%
12 Months Avg MDR												0.00%		0.00%
Avg MDR Since Cut-off												0.00%		0.00%


CDR												0.00%		0.00%
3 Months Avg CDR												0.00%		0.00%
12 Months Avg CDR												0.00%		0.00%
Avg CDR Since Cut-off												0.00%		0.00%


SDA												0.00%		0.00%
3 Months Avg SDA Approximation												0.00%		0.00%
12 Months Avg SDA Approximation												0.00%		0.00%
Avg SDA Since Cut-off Approximation												0.00%		0.00%


Loss Severity Approximation for Current Period												0.00%		0.00%
3 Months Avg Loss Severity Approximation												0.00%		0.00%
12 Months Avg Loss Severity Approximation												0.00%		0.00%
Avg Loss Severity Approximation Since Cut-off												0.00%		0.00%

DEFAULT SPEEDS



							Group 4		Group 3		Group 2		Group 1		Total



MDR						0.00%		0.00%		0.00%		0.00%		0.00%
3 Months Avg MDR						0.00%		0.00%		0.00%		0.00%		0.00%
12 Months Avg MDR						0.00%		0.00%		0.00%		0.00%		0.00%
Avg MDR Since Cut-off						0.00%		0.00%		0.00%		0.00%		0.00%


CDR						0.00%		0.00%		0.00%		0.00%		0.00%
3 Months Avg CDR						0.00%		0.00%		0.00%		0.00%		0.00%
12 Months Avg CDR						0.00%		0.00%		0.00%		0.00%		0.00%
Avg CDR Since Cut-off						0.00%		0.00%		0.00%		0.00%		0.00%


SDA						0.00%		0.00%		0.00%		0.00%		0.00%
3 Months Avg SDA Approximation						0.00%		0.00%		0.00%		0.00%		0.00%
12 Months Avg SDA Approximation						0.00%		0.00%		0.00%		0.00%		0.00%
Avg SDA Since Cut-off Approximation						0.00%		0.00%		0.00%		0.00%		0.00%


Loss Severity Approximation for Current Period						0.00%		0.00%		0.00%		0.00%		0.00%
3 Months Avg Loss Severity Approximation						0.00%		0.00%		0.00%		0.00%		0.00%
12 Months Avg Loss Severity Approximation						0.00%		0.00%		0.00%		0.00%		0.00%
Avg Loss Severity Approximation Since Cut-off						0.00%		0.00%		0.00%		0.00%		0.00%








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IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution








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IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution



COLLATERAL REALIZED LOSS CALCULATION METHODOLOGY
	Monthly Default Rate (MDR): (Beg Principal Balance of Liquidated Loans)/(Total Beg Principal Balance)



	Conditional Default Rate (CDR): 1-((1-MDR)^12)

	SDA Standard Default Assumption: CDR/IF(WAS<61,MIN(30,WAS)0.02,MAX(0.03,MIN(30,WAS)0.02-0.0095*(WAS-60)))

	Average MDR over period between nth month and mth month (AvgMDRn,m): [(1-MDRn)(1-MDRn+1)...*(1-MDRm)]^(1/months in period n,m)
	Average CDR over period between the nth month and mth month (AvgCDRn,m): 1-((1-AvgMDRn,m)^12)

	Average SDA Approximation over period between the nth month and mth month:
	AvgCDRn,m/IF(Avg WASn,m<61,MIN(30,Avg WASn,m)0.02,MAX(0.03,MIN(30,Avg WASn,m)0.02-0.0095*(Avg WASn,m-60)))

	Average WASn,m: (WASn + WASn+1 +...+ WASm )/(number of months in the period n,m)
	Loss Severity Approximation for current period: sum(Realized Loss Amount)/sum(Beg Principal Balance of Liquidated Loans)

	Average Loss Severity Approximation over period between nth month and mth month: Avg(Loss Severityn,m)

	Note: Default rates are calculated since deal issue date and include realized gains and additional realized losses and gains from prior periods.
	Dates correspond to distribution dates.




Page 39 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution
Realized Loss Detail Report
Loan Number			Current		State &				Prior		Realized				Cumulative
															Cumulative
&		Loan	Note		LTV at		Original		Principal		Loss/(Gain)		Realized		Realized

Loan Group		Status	Rate		Origination		Term		Balance		Revision		Loss/(Gain)		Loss/(Gain)
Loan Group		Status	Rate		Origination		Term		Balance		Revision		Loss/(Gain)		Loss/(Gain)




TOTAL



Page 40 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution
Triggers and Adj. Cert. Report
TRIGGER EVENTS
TRIGGER EVENTS
												Group 6		Group 5
						Has Optional Termination Date Reached (0=No,1=Yes)
						Has Sr. Prepay Stepdown Condition Occurred
						Has Spl. Haz. Cov. Term. Date Occured (0=No,1=Yes)
						Has Fraud Loss Coverage Term. Date Occured
						Has Bankrpt Loss Cov. Term. Date Occured

TRIGGER EVENTS
TRIGGER EVENTS
						Group 4		Group 3		Group 2		Group 1		Total
						Has Optional Termination Date Reached (0=No,1=Yes)								No
						Has Sr. Prepay Stepdown Condition Occurred								No
						Has Spl. Haz. Cov. Term. Date Occured (0=No,1=Yes)								No
						Has Fraud Loss Coverage Term. Date Occured								No
						Has Bankrpt Loss Cov. Term. Date Occured								No



ADJUSTABLE RATE CERTIFICATE INFORMATION

SPACE INTENTIONALLY LEFT BLANK





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IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution

ADDITIONAL INFORMATION
ADDITIONAL INFORMATION
												Group 6		Group 5
Current Senior Percentage												92.149849%		92.149715%
Current Subordinate Percentage												7.850151%		7.850285%
Senior Prepayment Percentage												100.000000%		100.000000%
Subordinate Prepayment Percentage												0.000000%		0.000000%

ADDITIONAL INFORMATION
ADDITIONAL INFORMATION
						Group 4		Group 3		Group 2		Group 1		Total
Current Senior Percentage						93.499807%		93.499622%		93.499807%		93.499234%
Current Subordinate Percentage						6.500193%		6.500378%		6.500193%		6.500766%
Senior Prepayment Percentage						100.000000%		100.000000%		100.000000%		100.000000%
Subordinate Prepayment Percentage						0.000000%		0.000000%		0.000000%		0.000000%




Page 42 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution
Other Related Information
ADDITIONAL INFORMATION
ADDITIONAL INFORMATION
												Group 6		Group 5


Sched. Payments for 60+Day Delinquent Loans												0.00		0.00
Sched. Pmts - 60+Day Delinquent Loans, 1 Month Prior												0.00		0.00
Sched. Pmts - 60+Day Delinquent Loans, 2 Month Prior												0.00		0.00
Sched. Pmts - 60+Day Delinquent Loans, 3 Month Prior												0.00		0.00
Sched. Pmts - 60+Day Delinquent Loans, 4 Month Prior												0.00		0.00
Sched. Pmts - 60+Day Delinquent Loans, 5 Month Prior												0.00		0.00
Sched. Pmts - 60+Day Delinquent Loans, 6 Month Prior												0.00		0.00
Sched. Pmts - 60+Day Delinquent Loans, 7 Month Prior												0.00		0.00
Sched. Pmts - 60+Day Delinquent Loans, 8 Month Prior												0.00		0.00
Sched. Pmts - 60+Day Delinquent Loans, 9 Month Prior												0.00		0.00
Sched. Pmts - 60+Day Delinquent Loans, 10 Month Prior												0.00		0.00
Sched. Pmts - 60+Day Delinquent Loans, 11 Month Prior												0.00		0.00



Class I-B-1 Writedown Amount
Class I-B-2 Writedown Amount
Class I-B-3 Writedown Amount
Class I-B-4 Writedown Amount
Class I-B-5 Writedown Amount
Class I-B-6 Writedown Amount
Class II-B-1 Writedown Amount
Class II-B-2 Writedown Amount
Class II-B-3 Writedown Amount
Class II-B-4 Writedown Amount
Class II-B-5 Writedown Amount
Class II-B-6 Writedown Amount



Page 43 of 44
IndyMac INDX Mortgage Loan Trust 2005-AR23

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR23

October 25, 2005 Distribution

ADDITIONAL INFORMATION
ADDITIONAL INFORMATION
						Group 4		Group 3		Group 2		Group 1		Total


Sched. Payments for 60+Day Delinquent Loans						0.00		0.00		0.00		0.00		0.00
Sched. Pmts - 60+Day Delinquent Loans, 1 Month Prior						0.00		0.00		0.00		0.00		0.00
Sched. Pmts - 60+Day Delinquent Loans, 2 Month Prior						0.00		0.00		0.00		0.00		0.00
Sched. Pmts - 60+Day Delinquent Loans, 3 Month Prior						0.00		0.00		0.00		0.00		0.00
Sched. Pmts - 60+Day Delinquent Loans, 4 Month Prior						0.00		0.00		0.00		0.00		0.00
Sched. Pmts - 60+Day Delinquent Loans, 5 Month Prior						0.00		0.00		0.00		0.00		0.00
Sched. Pmts - 60+Day Delinquent Loans, 6 Month Prior						0.00		0.00		0.00		0.00		0.00
Sched. Pmts - 60+Day Delinquent Loans, 7 Month Prior						0.00		0.00		0.00		0.00		0.00
Sched. Pmts - 60+Day Delinquent Loans, 8 Month Prior						0.00		0.00		0.00		0.00		0.00
Sched. Pmts - 60+Day Delinquent Loans, 9 Month Prior						0.00		0.00		0.00		0.00		0.00
Sched. Pmts - 60+Day Delinquent Loans, 10 Month Prior						0.00		0.00		0.00		0.00		0.00
Sched. Pmts - 60+Day Delinquent Loans, 11 Month Prior						0.00		0.00		0.00		0.00		0.00



Class I-B-1 Writedown Amount														0.00
Class I-B-2 Writedown Amount														0.00
Class I-B-3 Writedown Amount														0.00
Class I-B-4 Writedown Amount														0.00
Class I-B-5 Writedown Amount														0.00
Class I-B-6 Writedown Amount														0.00
Class II-B-1 Writedown Amount														0.00
Class II-B-2 Writedown Amount														0.00
Class II-B-3 Writedown Amount														0.00
Class II-B-4 Writedown Amount														0.00
Class II-B-5 Writedown Amount														0.00
Class II-B-6 Writedown Amount														0.00




Page 44 of 44

INDYMAC INDX MORTGAGE LOAN TRUST 2005-AR23 8-K