
                                       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):  July 25, 2005
                          (Date of earliest event reported)

            Indymac MBS, Inc. (as Depositor under the Pooling and Servicing
                Agreement, dated as June 1, 2005, providing for the
               issuance of IndyMac INDX Mortgage Loan Trust 2005-AR13
                Mortgage Pass-Through Certificates, Series 2005-AR13)
                 (Exact name of registrant as specified in charter)


                                         DELAWARE
                     (State or Other Jurisdiction of Incorporation)

               333-119384-31                         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
     July 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:  Jul 27, 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 July 25, 2005.



IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 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					25

										7. Foreclosure Report					26
										8. Prepayment Report					27
										9. Prepayment Detail Report					32
										9. Prepayment Detail Report					32
										10. Realized Loss Report					33
										11. Realized Loss Detail Report					38
				Servicer(s)						11. Realized Loss Detail Report					38
				Servicer(s)						12. Triggers and Adj. Cert. Report					39
				IndyMac Bank						12. Triggers and Adj. Cert. Report					39
				IndyMac Bank						13. Other Related Information					41
										13. Other Related Information					41


				Underwriter(s)
				Deutsche Bank Securities


										Total Number of Pages					42
										Total Number of Pages

				Dates						Contacts

				Cut-Off Date:			June 01, 2005			Brent Hoyler
				Close Date:			June 29, 2005			Administrator
				First Distribution Date:			July 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:			July 25, 2005
										Factor Information:			(800) 735-7777
				Record Date:			June 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 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution
Certificate Payment Report
Current Period Distribution -
					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	$	150,598,000.00		150,598,000.00		573,430.58		2,212,669.21		2,786,099.79		0.00		0.00		148,385,330.79
1-A-1	SR	$	150,598,000.00		150,598,000.00		573,430.58		2,212,669.21		2,786,099.79		0.00		0.00		148,385,330.79
1-X	NTL	$	0.00		0.00		116,299.31		0.00		116,299.31		0.00		0.00		0.00
2-A-1	SR	$	68,309,000.00		68,309,000.00		255,899.05		1,936,518.25		2,192,417.30		0.00		0.00		66,372,481.75
2-A-2	SR	$	7,590,000.00		7,590,000.00		28,433.64		215,171.84		243,605.48		0.00		0.00		7,374,828.16
2-X	NTL	$	0.00		0.00		74,868.04		0.00		74,868.04		0.00		0.00		0.00
3-A-1	SR	$	36,806,000.00		36,806,000.00		157,022.26		1,500,345.03		1,657,367.29		0.00		0.00		35,305,654.97
3-A-2	SR	$	4,089,000.00		4,089,000.00		17,444.55		166,682.36		184,126.91		0.00		0.00		3,922,317.64
3-X	NTL	$	0.00		0.00		43,624.74		0.00		43,624.74		0.00		0.00		0.00
4-A-1	SR	$	278,372,000.00		278,372,000.00		1,260,175.51		2,758,419.06		4,018,594.57		0.00		0.00		275,613,580.94
4-A-2	SR	$	30,930,000.00		30,930,000.00		129,685.30		306,488.81		436,174.11		0.00		0.00		30,623,511.19
4-X	NTL	$	0.00		0.00		10,333.20		0.00		10,333.20		0.00		0.00		0.00
5-A-1	SR	$	78,441,000.00		78,441,000.00		334,572.18		786,142.45		1,120,714.63		0.00		0.00		77,654,857.55
5-A-2	SR	$	13,843,000.00		13,843,000.00		64,020.71		138,735.74		202,756.45		0.00		0.00		13,704,264.26
5-X	NTL	$	0.00		0.00		28,199.54		0.00		28,199.54		0.00		0.00		0.00
A-R	RES	$	100.00		100.00		0.46		100.00		100.46		0.00		0.00		0.00
B-1	SUB	$	19,859,000.00		19,859,000.00		91,847.69		7,979.83		99,827.52		0.00		0.00		19,851,020.17
B-2	SUB	$	11,913,000.00		11,913,000.00		55,097.51		4,786.93		59,884.44		0.00		0.00		11,908,213.07
B-3	SUB	$	7,581,000.00		7,581,000.00		35,062.05		3,046.23		38,108.28		0.00		0.00		7,577,953.77
B-4	SUB	$	5,776,000.00		5,776,000.00		26,713.95		2,320.94		29,034.89		0.00		0.00		5,773,679.06
B-5	SUB	$	4,693,000.00		4,693,000.00		21,705.08		1,885.76		23,590.84		0.00		0.00		4,691,114.24
B-6	SUB	$	3,251,796.00		3,251,796.00		15,039.53		1,307.14		16,346.67		0.00		0.00		3,250,488.86
P	P	$	100.00		100.00		0.00		0.00		0.00		0.00		0.00		100.00


Total			722,051,996.00		722,051,996.00		3,339,474.88		10,042,599.58		13,382,074.46		0.00		0.00		712,009,396.42
Total





Page 2 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution

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	06/01/05		06/30/05		A-30/360		45660LQW2		150,598,000.00		1,000.000000		3.807691		14.692554		18.500244	985.307446
1-X	06/01/05		06/30/05		A-30/360		45660LQX0		150,598,000.00		1,000.000000		0.772250		0.000000		0.772250	1,000.000000
2-A-1	06/01/05		06/30/05		A-30/360		45660LQY8		68,309,000.00		1,000.000000		3.746198		28.349387		32.095585	971.650613
2-A-2	06/01/05		06/30/05		A-30/360		45660LQZ5		7,590,000.00		1,000.000000		3.746198		28.349386		32.095584	971.650614
2-X	06/01/05		06/30/05		A-30/360		45660LRA9		75,899,000.00		1,000.000000		0.986417		0.000000		0.986417	1,000.000000
3-A-1	06/01/05		06/30/05		A-30/360		45660LRB7		36,806,000.00		1,000.000000		4.266214		40.763599		45.029813	959.236401
3-A-2	06/01/05		06/30/05		A-30/360		45660LRC5		4,089,000.00		1,000.000000		4.266214		40.763600		45.029814	959.236400
3-X	06/01/05		06/30/05		A-30/360		45660LRD3		40,895,000.00		1,000.000000		1.066750		0.000000		1.066750	959.236401
4-A-1	06/01/05		06/30/05		A-30/360		45660LRE1		278,372,000.00		1,000.000000		4.526948		9.909111		14.436059	990.090889
4-A-2	06/01/05		06/30/05		A-30/360		45660LRF8		30,930,000.00		1,000.000000		4.192865		9.909111		14.101976	990.090889
4-X	06/01/05		06/30/05		A-30/360		45660LRG6		30,930,000.00		1,000.000000		0.334083		0.000000		0.334083	1,000.000000
5-A-1	06/01/05		06/30/05		A-30/360		45660LRH4		78,441,000.00		1,000.000000		4.265272		10.022086		14.287358	989.977914
5-A-2	06/01/05		06/30/05		A-30/360		45660LRJ0		13,843,000.00		1,000.000000		4.624771		10.022086		14.646858	989.977914
5-X	06/01/05		06/30/05		A-30/360		45660LRK7		78,441,000.00		1,000.000000		0.359500		0.000000		0.359500	1,000.000000
A-R	06/01/05		06/30/05		A-30/360		45660LRL5		100.00		1,000.000000		4.600000		1,000.000000		1,004.600000	0.000000
B-1	06/01/05		06/30/05		A-30/360		45660LRM3		19,859,000.00		1,000.000000		4.624991		0.401824		5.026815	999.598176
B-2	06/01/05		06/30/05		A-30/360		45660LRN1		11,913,000.00		1,000.000000		4.624990		0.401824		5.026814	999.598176
B-3	06/01/05		06/30/05		A-30/360		45660LRP6		7,581,000.00		1,000.000000		4.624990		0.401824		5.026814	999.598176
B-4	06/01/05		06/30/05		A-30/360		45660LRQ4		5,776,000.00		1,000.000000		4.624991		0.401825		5.026816	999.598175
B-5	06/01/05		06/30/05		A-30/360		45660LRR2		4,693,000.00		1,000.000000		4.624990		0.401824		5.026814	999.598176
B-6	06/01/05		06/30/05		A-30/360		45660LRS0		3,251,796.00		1,000.000000		4.624992		0.401975		5.026967	999.598025
P	06/01/05		06/30/05		A-30/360		45660LRT8		100.00		1,000.000000		0.000000		0.000000		0.000000	1,000.000000




Page 3 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution

Distribution to Date -
																	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	150,598,000.00		573,430.58		2,185,906.34		26,762.87		2,212,669.21		2,786,099.79		0.00		0.00		148,385,330.79
1-X	0.00		116,299.31		0.00		0.00		0.00		116,299.31		0.00		0.00		0.00
2-A-1	68,309,000.00		255,899.05		1,907,885.91		28,632.34		1,936,518.25		2,192,417.30		0.00		0.00		66,372,481.75
2-A-2	7,590,000.00		28,433.64		0.00		0.00		215,171.84		243,605.48		0.00		0.00		7,374,828.16
2-X	0.00		74,868.04		0.00		0.00		0.00		74,868.04		0.00		0.00		0.00
3-A-1	36,806,000.00		157,022.26		1,480,110.06		20,234.97		1,500,345.03		1,657,367.29		0.00		0.00		35,305,654.97
3-A-2	4,089,000.00		17,444.55		164,434.34		1,335,910.69		166,682.36		184,126.91		0.00		0.00		3,922,317.64
3-X	0.00		43,624.74		0.00		0.00		0.00		43,624.74		0.00		0.00		0.00
4-A-1	278,372,000.00		1,260,175.51		2,528,142.30		230,276.76		2,758,419.06		4,018,594.57		0.00		0.00		275,613,580.94
4-A-2	30,930,000.00		129,685.30		0.00		255,862.89		306,488.81		436,174.11		0.00		0.00		30,623,511.19
4-X	0.00		10,333.20		0.00		0.00		0.00		10,333.20		0.00		0.00		0.00
5-A-1	78,441,000.00		334,572.18		756,408.54		29,733.91		786,142.45		1,120,714.63		0.00		0.00		77,654,857.55
5-A-2	13,843,000.00		64,020.71		133,488.40		5,247.34		138,735.74		202,756.45		0.00		0.00		13,704,264.26
5-X	0.00		28,199.54		0.00		0.00		0.00		28,199.54		0.00		0.00		0.00
A-R	100.00		0.46		0.00		0.00		100.00		100.46		0.00		0.00		0.00
B-1	19,859,000.00		91,847.69		0.00		7,979.83		7,979.83		99,827.52		0.00		0.00		19,851,020.17
B-2	11,913,000.00		55,097.51		0.00		4,786.93		4,786.93		59,884.44		0.00		0.00		11,908,213.07
B-3	7,581,000.00		35,062.05		0.00		3,046.23		3,046.23		38,108.28		0.00		0.00		7,577,953.77
B-4	5,776,000.00		26,713.95		0.00		2,320.94		2,320.94		29,034.89		0.00		0.00		5,773,679.06
B-5	4,693,000.00		21,705.08		0.00		1,885.76		1,885.76		23,590.84		0.00		0.00		4,691,114.24
B-6	3,251,796.00		15,039.53		0.00		1,307.14		1,307.14		16,346.67		0.00		0.00		3,250,488.86
P	100.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00		100.00


Total	722,051,996.00		3,339,474.88		9,156,375.89		1,953,988.60		10,042,599.58		13,382,074.46		0.00		0.00		712,009,396.42



Page 4 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution

Interest Detail -
	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	4.56923%		150,598,000.00		573,430.58		0.00		0.00		0.00		573,430.58		573,430.58		0.00
1-X	0.92670%		150,598,000.00		116,299.31		0.00		0.00		0.00		116,299.31		116,299.31		0.00
2-A-1	4.49544%		68,309,000.00		255,899.05		0.00		0.00		0.00		255,899.05		255,899.05		0.00
2-A-2	4.49544%		7,590,000.00		28,433.64		0.00		0.00		0.00		28,433.64		28,433.64		0.00
2-X	1.18370%		75,899,000.00		74,868.04		0.00		0.00		0.00		74,868.04		74,868.04		0.00
3-A-1	5.11946%		36,806,000.00		157,022.26		0.00		0.00		0.00		157,022.26		157,022.26		0.00
3-A-2	5.11946%		4,089,000.00		17,444.55		0.00		0.00		0.00		17,444.55		17,444.55		0.00
3-X	1.28010%		40,895,000.00		43,624.74		0.00		0.00		0.00		43,624.74		43,624.74		0.00
4-A-1	5.43234%		278,372,000.00		1,260,175.51		0.00		0.00		0.00		1,260,175.51		1,260,175.51		0.00
4-A-2	5.03144%		30,930,000.00		129,685.30		0.00		0.00		0.00		129,685.30		129,685.30		0.00
4-X	0.40090%		30,930,000.00		10,333.20		0.00		0.00		0.00		10,333.20		10,333.20		0.00
5-A-1	5.11833%		78,441,000.00		334,572.18		0.00		0.00		0.00		334,572.18		334,572.18		0.00
5-A-2	5.54973%		13,843,000.00		64,020.71		0.00		0.00		0.00		64,020.71		64,020.71		0.00
5-X	0.43140%		78,441,000.00		28,199.54		0.00		0.00		0.00		28,199.54		28,199.54		0.00
A-R	5.52000%		100.00		0.46		0.00		0.00		0.00		0.46		0.46		0.00
B-1	5.54999%		19,859,000.00		91,847.69		0.00		0.00		0.00		91,847.69		91,847.69		0.00
B-2	5.54999%		11,913,000.00		55,097.51		0.00		0.00		0.00		55,097.51		55,097.51		0.00
B-3	5.54999%		7,581,000.00		35,062.05		0.00		0.00		0.00		35,062.05		35,062.05		0.00
B-4	5.54999%		5,776,000.00		26,713.95		0.00		0.00		0.00		26,713.95		26,713.95		0.00
B-5	5.54999%		4,693,000.00		21,705.08		0.00		0.00		0.00		21,705.08		21,705.08		0.00
B-6	5.54999%		3,251,796.00		15,039.53		0.00		0.00		0.00		15,039.53		15,039.53		0.00
P	0.00000%		100.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00


Total			1,098,814,996.00		3,339,474.88		0.00		0.00		0.00		3,339,474.88		3,339,474.88		0.00



Page 5 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution
Collection Account Report
SUMMARY
SUMMARY
														Group 5
Principal Collections														926,025.48
Principal Withrawals														0.00
Principal Other Accounts														0.00
TOTAL NET PRINCIPAL														926,025.48
Interest Collections														472,540.00
Interest Withdrawals														-0.00
Interest Other Accounts														0.00
Interest Fees														-11,887.33
TOTAL NET INTEREST														460,652.67
TOTAL AVAILABLE FUNDS FOR DISTRIBUTION														1,386,678.15

SUMMARY
SUMMARY
						Group 4		Group 3		Group 2		Group 1		Total
Principal Collections						3,083,655.63		1,667,141.96		2,152,547.16		2,213,228.86		10,042,599.09
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						3,083,655.63		1,667,141.96		2,152,547.16		2,213,228.86		10,042,599.09
Interest Collections						1,544,123.56		241,441.96		398,796.83		763,732.87		3,420,635.22
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						-32,847.54		-6,044.05		-11,096.43		-19,285.03		-81,160.37
TOTAL NET INTEREST						1,511,276.03		235,397.91		387,700.40		744,447.85		3,339,474.86
TOTAL AVAILABLE FUNDS FOR DISTRIBUTION						4,594,931.66		1,902,539.87		2,540,247.56		2,957,676.71		13,382,073.95





Page 6 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution

PRINCIPAL - COLLECTIONS
PRINCIPAL - COLLECTIONS
															Group 5
Scheduled Principal Received															15,608.34
Curtailments															267.14
Prepayments In Full															910,150.00
Repurchased/Substitutions															0.00
Liquidations															0.00
Insurance Principal															0.00
Other Additional Principal															0.00
Delinquent Principal															-9,710.23
Realized Losses															-0.00
Principal Recoveries
Advanced Principal															9,710.23
TOTAL PRINCIPAL COLLECTED															926,025.48
PRINCIPAL - COLLECTIONS
PRINCIPAL - COLLECTIONS
							Group 4		Group 3		Group 2		Group 1		Total
Scheduled Principal Received							48,264.21		1,558.37		11,659.32		6,253.64		83,343.88
Curtailments							60,610.55		6,725.87		-1,716.64		3,521.30		69,408.22
Prepayments In Full							2,767,980.87		1,658,857.72		2,142,604.48		2,203,453.92		9,683,046.99
Repurchased/Substitutions							206,800.00		0.00		0.00		0.00		206,800.00
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							-37,287.49		-887.39		-5,558.61		-5,461.63		-58,905.35
Realized Losses							-0.00		-0.00		-0.00		-0.00		-0.00
Principal Recoveries
Advanced Principal							37,287.49		887.39		5,558.61		5,461.63		58,905.35
TOTAL PRINCIPAL COLLECTED							3,083,655.63		1,667,141.96		2,152,547.16		2,213,228.86		10,042,599.09


PRINCIPAL - WITHDRAWALS

SPACE INTENTIONALLY LEFT BLANK





Page 7 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

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Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution

PRINCIPAL - OTHER ACCOUNTS
PRINCIPAL - OTHER ACCOUNTS
														Group 5
TOTAL PRINCIPAL OTHER ACCOUNTS														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 5
Scheduled Interest														493,118.51
Repurchased/Substitution Interest														0.00
Liquidation Interest														0.00
Insurance Interest														0.00
Other Additional Interest														0.00
Prepayment Interest Shortfalls														-314.62
Delinquent Interest														-324,997.16
Interest Realized Losses
Compensating Interest														314.62
Civil Relief Act Shortfalls														-0.00
Interest Advanced														304,418.65
TOTAL INTEREST COLLECTED														472,540.00
INTEREST - COLLECTIONS
INTEREST - COLLECTIONS
						Group 4		Group 3		Group 2		Group 1		Total
Scheduled Interest						1,617,064.88		250,482.56		415,282.46		796,875.61		3,572,824.02
Repurchased/Substitution Interest						1,055.54		0.00		0.00		0.00		1,055.54
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						-1,386.21		-696.94		-1,261.54		-1,110.53		-4,769.84
Delinquent Interest						-1,142,962.83		-164,238.53		-265,492.39		-517,195.58		-2,414,886.49
Interest Realized Losses
Compensating Interest						1,386.21		696.94		1,261.54		1,110.53		4,769.83
Civil Relief Act Shortfalls						-0.00		-0.00		-0.00		-0.00		-0.00
Interest Advanced						1,068,965.97		155,197.93		249,006.76		484,052.84		2,261,642.15
TOTAL INTEREST COLLECTED						1,544,123.56		241,441.96		398,796.83		763,732.87		3,420,635.22




Page 8 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

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Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution

INTEREST - WITHDRAWALS

SPACE INTENTIONALLY LEFT BLANK



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

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





Page 9 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution

INTEREST - FEES
INTEREST - FEES
														Group 5
Current Servicing Fees														10,548.20
Trustee Fees														373.52
TOTAL INTEREST FEES														11,887.33

INTEREST - FEES
INTEREST - FEES
						Group 4		Group 3		Group 2		Group 1		Total
Current Servicing Fees						30,328.13		4,753.20		9,114.67		17,652.67		72,396.88
Trustee Fees						1,251.90		165.53		307.20		609.54		2,707.69
TOTAL INTEREST FEES						32,847.54		6,044.05		11,096.43		19,285.03		81,160.37




Page 10 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

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Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution
Credit Enhancement Report
ACCOUNTS


SPACE INTENTIONALLY LEFT BLANK





INSURANCE
INSURANCE
														Group 5
PMI PREMIUM														965.61

INSURANCE
INSURANCE
						Group 4		Group 3		Group 2		Group 1		Total
PMI PREMIUM						1,267.51		1,125.32		1,674.55		1,022.81		6,055.80



STRUCTURAL FEATURES

SPACE INTENTIONALLY LEFT BLANK



Page 11 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

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Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution
Collateral Report


COLLATERAL



															Group 5



Loan Count:


Original														331
Prior														331
Prefunding														0
Scheduled Paid Offs														-0
Full Voluntary Prepayments														-3
Repurchases														-0
Liquidations														-0
Current														328
Principal Balance:


Original														99,605,493.60
Prior														99,605,493.60
Prefunding														0.00
Scheduled Principal														-15,608.34
Partial Prepayments														-267.14
Full Voluntary Prepayments														-910,150.00
Repurchases														-0.00
Liquidations														-0.00
Current														98,679,468.12

COLLATERAL



							Group 4		Group 3		Group 2		Group 1		Total



Loan Count:
Loan Count:


Original						1,255		230		161		703		2,680
Prior						1,255		230		161		703		2,680
Prefunding						0		0		0		0		0
Scheduled Paid Offs						-0		-0		-0		-0		-0
Full Voluntary Prepayments						-9		-8		-5		-10		-35
Repurchases						-1		-0		-0		-0		-1
Liquidations						-0		-0		-0		-0		-0
Current						1,245		222		156		693		2,644
Principal Balance:


Original						333,839,948.95		44,140,168.26		81,920,973.66		162,545,311.04		722,051,895.51
Prior						333,839,948.95		44,140,168.26		81,920,973.66		162,545,311.04		722,051,895.51
Prefunding						0.00		0.00		0.00		0.00		0.00
Scheduled Principal						-48,264.21		-1,558.37		-11,659.32		-6,253.64		-83,343.88
Partial Prepayments						-60,610.55		-6,725.87		(1,716.64)		-3,521.30		-69,408.22
Full Voluntary Prepayments						-2,767,980.87		-1,658,857.72		-2,142,604.48		-2,203,453.92		-9,683,046.99
Repurchases						-206,800.00		-0.00		-0.00		-0.00		-206,800.00
Liquidations						-0.00		-0.00		-0.00		-0.00		-0.00
Current						330,756,293.32		42,473,026.30		79,768,426.50		160,332,082.18		712,009,296.42







Page 12 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution

PREFUNDING

SPACE INTENTIONALLY LEFT BLANK







Page 13 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution

CHARACTERISTICS
CHARACTERISTICS
														Group 5
Weighted Average Coupon Original														5.94086%
Weighted Average Coupon Prior														5.94086%
Weighted Average Coupon Current														5.94086%
Weighted Average Months to Maturity Original														358
Weighted Average Months to Maturity Prior														358
Weighted Average Months to Maturity Current														358
Weighted Avg Remaining Amortization Term Original														358
Weighted Avg Remaining Amortization Term Prior														358
Weighted Avg Remaining Amortization Term Current														358
Weighted Average Seasoning Original														1.70
Weighted Average Seasoning Prior														1.70
Weighted Average Seasoning Current														1.70
CHARACTERISTICS
CHARACTERISTICS
						Group 4		Group 3		Group 2		Group 1		Total
Weighted Average Coupon Original						5.81639%		6.80965%		6.08317%		5.88298%		5.93954%
Weighted Average Coupon Prior						5.81639%		6.80965%		6.08317%		5.88298%		5.93954%
Weighted Average Coupon Current						5.81639%		6.80965%		6.08317%		5.88298%		5.93954%
Weighted Average Months to Maturity Original						357		358		358		357		357
Weighted Average Months to Maturity Prior						357		358		358		357		357
Weighted Average Months to Maturity Current						357		358		358		357		357
Weighted Avg Remaining Amortization Term Original						357		358		358		357		357
Weighted Avg Remaining Amortization Term Prior						357		358		358		357		357
Weighted Avg Remaining Amortization Term Current						357		358		358		357		357
Weighted Average Seasoning Original						2.96		2.45		1.89		2.46		2.52
Weighted Average Seasoning Prior						2.96		2.45		1.89		2.46		2.52
Weighted Average Seasoning Current						2.96		2.45		1.89		2.46		2.52





Page 14 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution






Page 15 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution

ARM CHARACTERISTICS
ARM CHARACTERISTICS
														Group 5
Weighted Average Margin Original														2.69583%
Weighted Average Margin Prior														2.69583%
Weighted Average Margin Current														2.69583%
Weighted Average Max Rate Original														1178.60887%
Weighted Average Max Rate Prior														1178.60887%
Weighted Average Max Rate Current														1178.60887%
Weighted Average Min Rate Original														269.58331%
Weighted Average Min Rate Prior														269.58331%
Weighted Average Min Rate Current														269.58331%
Weighted Average Cap Up Original														1.00000%
Weighted Average Cap Up Prior														1.00000%
Weighted Average Cap Up Current														1.00000%
Weighted Average Cap Down Original														1.00000%
Weighted Average Cap Down Prior														1.00000%
Weighted Average Cap Down Current														1.00000%

ARM CHARACTERISTICS
ARM CHARACTERISTICS
						Group 4		Group 3		Group 2		Group 1		Total
Weighted Average Margin Original						2.48950%		2.62585%		2.67343%		2.66419%		2.58649%
Weighted Average Margin Prior						2.48950%		2.62585%		2.67343%		2.66419%		2.58649%
Weighted Average Margin Current						2.48950%		2.62585%		2.67343%		2.66419%		2.58649%
Weighted Average Max Rate Original						1144.90907%		1249.23393%		1205.81212%		1174.78778%		1169.57140%
Weighted Average Max Rate Prior						1144.90907%		1249.23393%		1205.81212%		1174.78778%		1169.57140%
Weighted Average Max Rate Current						1144.90907%		1249.23393%		1205.81212%		1174.78778%		1169.57140%
Weighted Average Min Rate Original						248.94976%		262.58503%		267.34307%		266.41921%		258.64914%
Weighted Average Min Rate Prior						248.94976%		262.58503%		267.34307%		266.41921%		258.64914%
Weighted Average Min Rate Current						248.94976%		262.58503%		267.34307%		266.41921%		258.64914%
Weighted Average Cap Up Original						0.99938%		1.00000%		1.00000%		1.00000%		0.99971%
Weighted Average Cap Up Prior						0.99938%		1.00000%		1.00000%		1.00000%		0.99971%
Weighted Average Cap Up Current						0.99938%		1.00000%		1.00000%		1.00000%		0.99971%
Weighted Average Cap Down Original						0.99938%		1.00000%		1.00000%		1.00000%		0.99971%
Weighted Average Cap Down Prior						0.99938%		1.00000%		1.00000%		1.00000%		0.99971%
Weighted Average Cap Down Current						0.99938%		1.00000%		1.00000%		1.00000%		0.99971%





Page 16 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution

SERVICING FEES & ADVANCES

															Group 5




Current Servicing Fees														10,548.20
Delinquent Servicing Fees														20,578.52
TOTAL SERVICING FEES														31,126.72


Total Servicing Fees														31,126.72
Compensating Interest														-314.62
Delinquent Servicing Fees														-20,578.52
COLLECTED SERVICING FEES														10,233.58


Total Advanced Interest														304,418.65
Total Advanced Principal														9,710.23
Aggregate Advances with respect to this Distribution														314,128.88

SERVICING FEES & ADVANCES
SERVICING FEES & ADVANCES

							Group 4		Group 3		Group 2		Group 1		Total




Current Servicing Fees						30,328.13		4,753.20		9,114.67		17,652.67		72,396.88
Delinquent Servicing Fees						73,996.86		9,040.60		16,485.63		33,142.74		153,244.35
TOTAL SERVICING FEES						104,324.99		13,793.80		25,600.31		50,795.41		225,641.23


Total Servicing Fees						104,324.99		13,793.80		25,600.31		50,795.41		225,641.23
Compensating Interest						-1,386.21		-696.94		-1,261.54		-1,110.53		-4,769.83
Delinquent Servicing Fees						-73,996.86		-9,040.60		-16,485.63		-33,142.74		-153,244.35
COLLECTED SERVICING FEES						28,941.92		4,056.27		7,853.14		16,542.15		67,627.06


Total Advanced Interest						1,068,965.97		155,197.93		249,006.76		484,052.84		2,261,642.15
Total Advanced Principal						37,287.49		887.39		5,558.61		5,461.63		58,905.35
Aggregate Advances with respect to this Distribution						1,106,253.46		156,085.32		254,565.37		489,514.47		2,320,547.50







Page 17 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution

ADDITIONAL COLLATERAL INFORMATION
														Group 5
Prepayment Interest Shortfall (PPIS)														314.62
Compensating Interest														-314.62
Net Prepayment Interest Shortfall (PPIS)														0.00
Weighted Average Net Mortgage Rate														5.549726%

ADDITIONAL COLLATERAL INFORMATION
						Group 4		Group 3		Group 2		Group 1		Total
Prepayment Interest Shortfall (PPIS)						1,386.21		696.94		1,261.54		1,110.53		4,769.84
Compensating Interest						-1,386.21		-696.94		-1,261.54		-1,110.53		-4,769.83
Net Prepayment Interest Shortfall (PPIS)						0.00		0.00		0.00		0.00		0.00
Weighted Average Net Mortgage Rate						5.432337%		6.399556%		5.679138%		5.495929%




Page 18 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution
Delinquency Report

	TOTAL
					< 1 PAYMENT		1 PAYMENT		2 PAYMENTS		3+ PAYMENTS		TOTAL
	DELINQUENT		Balance				27,789,144.85		0.00		0.00		27,789,144.85
			% Balance				3.90%		0.00%		0.00%		3.90%
			# Loans				83		0		0		83
			% # Loans				3.14%		0.00%		0.00%		3.14%
	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		76,439.83		0.00		0.00		0.00		76,439.83
			% Balance		0.01%		0.00%		0.00%		0.00%		0.01%
			# Loans		1		0		0		0		1
			% # Loans		0.04%		0.00%		0.00%		0.00%		0.04%
	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		76,439.83		27,789,144.85		0.00		0.00		27,865,584.68
			% Balance		0.01%		3.90%		0.00%		0.00%		3.91%
			# Loans		1		83		0		0		84
			% # Loans		0.04%		3.14%		0.00%		0.00%		3.18%









Page 19 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution


	GROUP 1
					< 1 PAYMENT		1 PAYMENT		2 PAYMENTS		3+ PAYMENTS		TOTAL
	DELINQUENT		Balance				3,623,325.08		0.00		0.00		3,623,325.08
			% Balance				2.26%		0.00%		0.00%		2.26%
			# Loans				14		0		0		14
			% # Loans				2.02%		0.00%		0.00%		2.02%
	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		3,623,325.08		0.00		0.00		3,623,325.08
			% Balance		0.00%		2.26%		0.00%		0.00%		2.26%
			# Loans		0		14		0		0		14
			% # Loans		0.00%		2.02%		0.00%		0.00%		2.02%










Page 20 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution

	GROUP 2
					< 1 PAYMENT		1 PAYMENT		2 PAYMENTS		3+ PAYMENTS		TOTAL
	DELINQUENT		Balance				6,630,964.48		0.00		0.00		6,630,964.48
			% Balance				8.31%		0.00%		0.00%		8.31%
			# Loans				13		0		0		13
			% # Loans				8.33%		0.00%		0.00%		8.33%
	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		6,630,964.48		0.00		0.00		6,630,964.48
			% Balance		0.00%		8.31%		0.00%		0.00%		8.31%
			# Loans		0		13		0		0		13
			% # Loans		0.00%		8.33%		0.00%		0.00%		8.33%










Page 21 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution

	GROUP 3
					< 1 PAYMENT		1 PAYMENT		2 PAYMENTS		3+ PAYMENTS		TOTAL
	DELINQUENT		Balance				1,010,199.88		0.00		0.00		1,010,199.88
			% Balance				2.38%		0.00%		0.00%		2.38%
			# Loans				8		0		0		8
			% # Loans				3.60%		0.00%		0.00%		3.60%
	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		1,010,199.88		0.00		0.00		1,010,199.88
			% Balance		0.00%		2.38%		0.00%		0.00%		2.38%
			# Loans		0		8		0		0		8
			% # Loans		0.00%		3.60%		0.00%		0.00%		3.60%










Page 22 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution

	GROUP 4
					< 1 PAYMENT		1 PAYMENT		2 PAYMENTS		3+ PAYMENTS		TOTAL
	DELINQUENT		Balance				14,502,786.99		0.00		0.00		14,502,786.99
			% Balance				4.38%		0.00%		0.00%		4.38%
			# Loans				44		0		0		44
			% # Loans				3.53%		0.00%		0.00%		3.53%
	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		76,439.83		0.00		0.00		0.00		76,439.83
			% Balance		0.02%		0.00%		0.00%		0.00%		0.02%
			# Loans		1		0		0		0		1
			% # Loans		0.08%		0.00%		0.00%		0.00%		0.08%
	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		76,439.83		14,502,786.99		0.00		0.00		14,579,226.82
			% Balance		0.02%		4.38%		0.00%		0.00%		4.41%
			# Loans		1		44		0		0		45
			% # Loans		0.08%		3.53%		0.00%		0.00%		3.61%










Page 23 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution

	GROUP 5
					< 1 PAYMENT		1 PAYMENT		2 PAYMENTS		3+ PAYMENTS		TOTAL
	DELINQUENT		Balance				2,021,868.42		0.00		0.00		2,021,868.42
			% Balance				2.05%		0.00%		0.00%		2.05%
			# Loans				4		0		0		4
			% # Loans				1.22%		0.00%		0.00%		1.22%
	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		2,021,868.42		0.00		0.00		2,021,868.42
			% Balance		0.00%		2.05%		0.00%		0.00%		2.05%
			# Loans		0		4		0		0		4
			% # Loans		0.00%		1.22%		0.00%		0.00%		1.22%









Page 24 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 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 25 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 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 26 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution
Prepayment Report

VOLUNTARY PREPAYMENTS
VOLUNTARY PREPAYMENTS

															Group 5




Current


Number of Paid in Full Loans														3
Number of Repurchased Loans														0
Total Number of Loans Prepaid in Full														3
Curtailments Amount														267.14
Paid in Full Balance														910,150.00
Repurchased Loans Balance														0.00
Total Prepayment Amount														910,417.14

Cumulative


Number of Paid in Full Loans														3
Number of Repurchased Loans														0
Total Number of Loans Prepaid in Full														3
Paid in Full Balance														910,150.00
Repurchased Loans Balance														0.00
Curtailments Amount														267.14
Total Prepayment Amount														910,417.14

VOLUNTARY PREPAYMENTS

							Group 4		Group 3		Group 2		Group 1		Total




Current


Number of Paid in Full Loans						9		8		5		10		35
Number of Repurchased Loans						1		0		0		0		1
Total Number of Loans Prepaid in Full						10		8		5		10		36
Curtailments Amount						60,610.55		6,725.87		-1,716.64		3,521.30		69,408.22
Paid in Full Balance						2,767,980.87		1,658,857.72		2,142,604.48		2,203,453.92		9,683,046.99
Repurchased Loans Balance						206,800.00		0.00		0.00		0.00		206,800.00
Total Prepayment Amount						3,035,391.42		1,665,583.59		2,140,887.84		2,206,975.22		9,959,255.21

Cumulative


Number of Paid in Full Loans						9		8		5		10		35
Number of Repurchased Loans						1		0		0		0		1
Total Number of Loans Prepaid in Full						10		8		5		10		36
Paid in Full Balance						2,767,980.87		1,658,857.72		2,142,604.48		2,203,453.92		9,683,046.99
Repurchased Loans Balance						206,800.00		0.00		0.00		0.00		206,800.00
Curtailments Amount						60,610.55		6,725.87		-1,716.64		3,521.30		69,408.22
Total Prepayment Amount						3,035,391.42		1,665,583.59		2,140,887.84		2,206,975.22		9,959,255.21





Page 27 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution






Page 28 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution

VOLUNTARY PREPAYMENTS RATES
VOLUNTARY PREPAYMENTS RATES

															Group 5



SMM														0.91%
3 Months Avg SMM														0.91%
12 Months Avg SMM														0.91%
Avg SMM Since Cut-off														0.91%


CPR														10.43%
3 Months Avg CPR														10.43%
12 Months Avg CPR														10.43%
Avg CPR Since Cut-off														10.43%


PSA														3,069.23%
3 Months Avg PSA Approximation														3,069.24%
12 Months Avg PSA Approximation														3,069.24%
Avg PSA Since Cut-off Approximation														3,069.24%

VOLUNTARY PREPAYMENTS RATES



							Group 4		Group 3		Group 2		Group 1		Total



SMM						0.91%		3.77%		2.61%		1.36%		1.38%
3 Months Avg SMM						0.91%		3.77%		2.61%		1.36%		1.38%
12 Months Avg SMM						0.91%		3.77%		2.61%		1.36%		1.38%
Avg SMM Since Cut-off						0.91%		3.77%		2.61%		1.36%		1.38%


CPR						10.38%		36.97%		27.23%		15.13%		15.35%
3 Months Avg CPR						10.38%		36.97%		27.23%		15.13%		15.35%
12 Months Avg CPR						10.38%		36.97%		27.23%		15.13%		15.35%
Avg CPR Since Cut-off						10.38%		36.97%		27.23%		15.13%		15.35%


PSA						1,751.11%		7,533.13%		7,208.44%		3,079.01%		3,041.48%
3 Months Avg PSA Approximation						1,751.12%		7,533.13%		7,208.44%		3,079.00%		3,041.48%
12 Months Avg PSA Approximation						1,751.12%		7,533.13%		7,208.44%		3,079.00%		3,041.48%
Avg PSA Since Cut-off Approximation						1,751.12%		7,533.13%		7,208.44%		3,079.00%		3,041.48%







Page 29 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution











Page 30 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 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 31 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 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

120382800 4			179,000.00		179,000.00			05-Jul-2005		5.750%		Paid Off - 360		01-Jan-2005
			179,000.00

120385122 1			90,000.00		90,000.00			15-Jul-2005		5.500%		Paid Off - 360		01-Mar-2005
120385122 1					90,000.00			15-Jul-2005		5.500%		Paid Off - 360		01-Mar-2005
120385145 3			308,750.00		308,664.35			08-Jul-2005		6.500%		Paid Off - 360		01-Apr-2005
120385145 3					308,664.35			08-Jul-2005		6.500%		Paid Off - 360		01-Apr-2005
120385177 4			114,250.00		113,916.87			11-Jul-2005		5.875%		Paid Off - 360		01-Mar-2005
120385177 4					113,916.87			11-Jul-2005		5.875%		Paid Off - 360		01-Mar-2005
120386019 4			159,100.00		159,100.00			21-Jun-2005		5.375%		Paid Off - 360		01-Apr-2005
120386019 4					159,100.00			21-Jun-2005		5.375%		Paid Off - 360		01-Apr-2005
120386208 1			150,000.00		150,000.00			07-Jul-2005		4.750%		Paid Off - 360		01-Jan-2005
120386208 1					150,000.00			07-Jul-2005		4.750%		Paid Off - 360		01-Jan-2005
120386323 1			158,450.00		158,410.39			11-Jul-2005		6.000%		Paid Off - 360		01-Feb-2005
120386323 1					158,410.39			11-Jul-2005		6.000%		Paid Off - 360		01-Feb-2005
120390097 3			147,000.00		146,870.46			23-Jun-2005		6.875%		Paid Off - 360		01-Mar-2005
120390097 3					146,870.46			23-Jun-2005		6.875%		Paid Off - 360		01-Mar-2005
120392161 3			257,250.00		257,250.00			24-Jun-2005		6.500%		Paid Off - 360		01-Jun-2005
120392161 3					257,250.00			24-Jun-2005		6.500%		Paid Off - 360		01-Jun-2005
120393099 3			160,000.00		160,000.00			01-Jul-2005		6.625%		Paid Off - 360		01-May-2005
120393099 3					160,000.00			01-Jul-2005		6.625%		Paid Off - 360		01-May-2005
120468745 1			262,262.00		262,261.99			22-Jun-2005		5.625%		Paid Off - 360		01-May-2005
120468745 1					262,261.99			22-Jun-2005		5.625%		Paid Off - 360		01-May-2005
120654803 1			155,224.00		155,224.00			30-Jun-2005		8.000%		Paid Off - 360		01-May-2005
120654803 1					155,224.00			30-Jun-2005		8.000%		Paid Off - 360		01-May-2005
120924181 3			215,200.00		215,200.00			30-Jun-2005		7.375%		Paid Off - 360		01-Jun-2005
120924181 3					215,200.00			30-Jun-2005		7.375%		Paid Off - 360		01-Jun-2005
121024354 4			269,500.00		269,500.00			28-Jun-2005		5.500%		Paid Off - 360		01-May-2005
121024354 4					269,500.00			28-Jun-2005		5.500%		Paid Off - 360		01-May-2005
121074925 1			348,900.00		348,900.00			30-Jun-2005		5.875%		Paid Off - 360		01-May-2005
121074925 1					348,900.00			30-Jun-2005		5.875%		Paid Off - 360		01-May-2005
121083626 2			462,103.00		462,103.00			21-Jun-2005		6.875%		Paid Off - 360		01-May-2005
121083626 2					462,103.00			21-Jun-2005		6.875%		Paid Off - 360		01-May-2005
121086011 3			211,486.00		211,484.99			11-Jul-2005		6.875%		Paid Off - 360		01-May-2005
121086011 3					211,484.99			11-Jul-2005		6.875%		Paid Off - 360		01-May-2005
121093252 2			438,204.00		438,203.99			15-Jul-2005		6.875%		Paid Off - 360		01-May-2005
121093252 2					438,203.99			15-Jul-2005		6.875%		Paid Off - 360		01-May-2005
121097335 4			356,000.00		356,000.00			08-Jul-2005		5.500%		Paid Off - 360		01-Apr-2005
121097335 4					356,000.00			08-Jul-2005		5.500%		Paid Off - 360		01-Apr-2005
121129929 1			240,000.00		240,000.00			12-Jul-2005		6.875%		Paid Off - 360		01-Jun-2005
121129929 1					240,000.00			12-Jul-2005		6.875%		Paid Off - 360		01-Jun-2005
121136944 2			417,674.00		417,305.49			28-Jun-2005		6.625%		Paid Off - 360		01-Jun-2005
121136944 2					417,305.49			28-Jun-2005		6.625%		Paid Off - 360		01-Jun-2005
121162937 1			220,000.00		220,000.00			23-Jun-2005		5.500%		Paid Off - 360		01-Jun-2005
121162937 1					220,000.00			23-Jun-2005		5.500%		Paid Off - 360		01-Jun-2005
121197791 4			559,000.00		559,000.00			23-Jun-2005		6.000%		Paid Off - 360		01-Jun-2005
121197791 4					559,000.00			23-Jun-2005		6.000%		Paid Off - 360		01-Jun-2005
121205937 4			230,000.00		230,000.00			21-Jun-2005		5.875%		Paid Off - 360		01-May-2005
121205937 4					230,000.00			21-Jun-2005		5.875%		Paid Off - 360		01-May-2005
121211541 5			169,650.00		169,650.00			07-Jul-2005		6.750%		Paid Off - 360		01-Jul-2005
121211541 5					169,650.00			07-Jul-2005		6.750%		Paid Off - 360		01-Jul-2005
121249612 2			387,392.00		387,392.00			28-Jun-2005		6.875%		Paid Off - 360		01-Jun-2005
121249612 2					387,392.00			28-Jun-2005		6.875%		Paid Off - 360		01-Jun-2005
121261039 3			176,000.00		175,999.92			28-Jun-2005		7.125%		Paid Off - 360		01-Jun-2005
121261039 3					175,999.92			28-Jun-2005		7.125%		Paid Off - 360		01-Jun-2005
121269650 2			437,600.00		437,600.00			13-Jul-2005		6.625%		Paid Off - 360		01-Jun-2005
121269650 2					437,600.00			13-Jul-2005		6.625%		Paid Off - 360		01-Jun-2005
121320011 3			183,388.00		183,388.00			30-Jun-2005		7.750%		Paid Off - 360		01-Jun-2005
121320011 3					183,388.00			30-Jun-2005		7.750%		Paid Off - 360		01-Jun-2005
121364966 4			430,852.00		430,852.00			06-Jul-2005		6.250%		Paid Off - 360		01-Jun-2005
121364966 4					430,852.00			06-Jul-2005		6.250%		Paid Off - 360		01-Jun-2005
121391102 1			344,000.00		343,657.54			23-Jun-2005		6.000%		Paid Off - 360		01-Jun-2005
121391102 1					343,657.54			23-Jun-2005		6.000%		Paid Off - 360		01-Jun-2005
121397294 5			188,000.00		188,000.00			01-Jul-2005		5.875%		Paid Off - 360		01-Jul-2005
121397294 5					188,000.00			01-Jul-2005		5.875%		Paid Off - 360		01-Jul-2005
121398467 5			552,500.00		552,500.00			27-Jun-2005		5.500%		Paid Off - 360		01-Jun-2005
121398467 5					552,500.00			27-Jun-2005		5.500%		Paid Off - 360		01-Jun-2005
121412412 1			235,000.00		235,000.00			01-Jul-2005		6.000%		Paid Off - 360		01-May-2005
121412412 1					235,000.00			01-Jul-2005		6.000%		Paid Off - 360		01-May-2005
121417550 4			470,612.00		470,612.00			06-Jul-2005		6.250%		Paid Off - 360		01-Jul-2005
121417550 4					470,612.00			06-Jul-2005		6.250%		Paid Off - 360		01-Jul-2005
121373601 4			206,800.00		206,800.00			31-Jul-2005		6.125%		Repur/Subs - 360		01-Jul-2005


TOTAL			9,891,147.00		9,889,846.99
TOTAL


Page 32 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution
Realized Loss Report

COLLATERAL REALIZED LOSSES



															Group 5


Current
Current



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

Cumulative
Cumulative



Number of Loans Liquidated														0
Collateral Realized Loss/(Gain) Amount														0.00
Net Liquidation Proceeds														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														7,220,518.96
		Fraud Loss Coverage Amt														14,441,037.92
		Bankruptcy Loss Coverage Amt														308,758.44







Page 33 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution





Page 34 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution


DEFAULT SPEEDS



															Group 5



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


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


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


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








Page 35 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution








Page 36 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 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 37 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 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 38 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution
Triggers and Adj. Cert. Report
TRIGGER EVENTS
TRIGGER EVENTS
														Group 5
						Has Optional Termination Date Reached (0=No,1=Yes)
						Has Sr. Credit Supp. Depletion Date Occured								0
						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)								0
						Has Sr. Credit Supp. Depletion Date Occured		0		0		0		0
						0		0		0		0		0
						Has Spl. Haz. Cov. Term. Date Occured (0=No,1=Yes)								0
						Has Fraud Loss Coverage Term. Date Occured								0
						Has Bankrpt Loss Cov. Term. Date Occured								0



ADJUSTABLE RATE CERTIFICATE INFORMATION

SPACE INTENTIONALLY LEFT BLANK





Page 39 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution

ADDITIONAL INFORMATION
ADDITIONAL INFORMATION
														Group 5
Current Senior Percentage														92.649508%
Next Senior Percentage														92.581693%
Current Subordinate Percentage														7.350492%
Next Subordinate Percentage														7.418307%
Senior Prepayment Percentage														100.000000%
Next Senior Prepayment Percentage														100.000000%
Subordinate Prepayment Percentage														0.000000%
Next Subordinate Prepayment Percentage														0.000000%

ADDITIONAL INFORMATION
ADDITIONAL INFORMATION
						Group 4		Group 3		Group 2		Group 1		Total
Current Senior Percentage						92.649787%		92.648038%		92.649045%		92.649920%
Next Senior Percentage						92.586928%		92.359730%		92.451755%		92.548746%
Current Subordinate Percentage						7.350213%		7.351962%		7.350955%		7.350080%
Next Subordinate Percentage						7.413072%		7.640270%		7.548245%		7.451254%
Senior Prepayment Percentage						100.000000%		100.000000%		100.000000%		100.000000%
Next Senior Prepayment Percentage						100.000000%		100.000000%		100.000000%		100.000000%
Subordinate Prepayment Percentage						0.000000%		0.000000%		0.000000%		0.000000%
Next Subordinate Prepayment Percentage						0.000000%		0.000000%		0.000000%		0.000000%




Page 40 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution
Other Related Information
ADDITIONAL INFORMATION
ADDITIONAL INFORMATION
														Group 5
Current Scheduled Payments														508,726.85
Current Scheduled Payments 1 Month Prior														0.00
Current Scheduled Payments 2 Month Prior														0.00
Current Scheduled Payments 3 Month Prior														0.00
Current Scheduled Payments 4 Month Prior														0.00
Current Scheduled Payments 5 Month Prior														0.00
Current Scheduled Payments 6 Month Prior														0.00
Current Scheduled Payments 7 Month Prior														0.00
Current Scheduled Payments 8 Month Prior														0.00
Current Scheduled Payments 9 Month Prior														0.00
Current Scheduled Payments 10 Month Prior														0.00
Current Scheduled Payments 11 Month Prior														0.00


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


Next Period Pass Through Rate - Subordinated Classes

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



Page 41 of 42
IndyMac INDX Mortgage Loan Trust 2005-AR13

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR13

July 25, 2005 Distribution

ADDITIONAL INFORMATION
ADDITIONAL INFORMATION
						Group 4		Group 3		Group 2		Group 1		Total
Current Scheduled Payments						1,665,329.09		252,040.93		426,941.78		803,129.25		3,656,167.90
Current Scheduled Payments 1 Month Prior						0.00		0.00		0.00		0.00		0.00
Current Scheduled Payments 2 Month Prior						0.00		0.00		0.00		0.00		0.00
Current Scheduled Payments 3 Month Prior						0.00		0.00		0.00		0.00		0.00
Current Scheduled Payments 4 Month Prior						0.00		0.00		0.00		0.00		0.00
Current Scheduled Payments 5 Month Prior						0.00		0.00		0.00		0.00		0.00
Current Scheduled Payments 6 Month Prior						0.00		0.00		0.00		0.00		0.00
Current Scheduled Payments 7 Month Prior						0.00		0.00		0.00		0.00		0.00
Current Scheduled Payments 8 Month Prior						0.00		0.00		0.00		0.00		0.00
Current Scheduled Payments 9 Month Prior						0.00		0.00		0.00		0.00		0.00
Current Scheduled Payments 10 Month Prior						0.00		0.00		0.00		0.00		0.00
Current Scheduled Payments 11 Month Prior						0.00		0.00		0.00		0.00		0.00


Sched. Payments for 60+Day Delinquent Loans						383.00		0.00		0.00		0.00		383.00
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


Next Period Pass Through Rate - Subordinated Classes														5.594980%

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




Page 42 of 42

IndyMac INDX Mortgage Loan Trust 2005-AR13 8-K