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

            Indymac MBS, Inc. (as Depositor under the Pooling and Servicing
                Agreement, dated as July 1, 2005, providing for the
               issuance of IndyMac INDX Mortgage Loan Trust 2005-AR17
                Mortgage Pass-Through Certificates, Series 2005-AR17)
                 (Exact name of registrant as specified in charter)


                                         DELAWARE
                     (State or Other Jurisdiction of Incorporation)

               333-119384-34                         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
     August 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:  Aug 26, 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 August 25, 2005.



IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 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					4
										2. Collection Account Report					4
										3. Credit Enhancement Report					9
										4. Collateral Report					10
				Certificate Insurer(s)						5. Delinquency Report					17
				Certificate Insurer(s)						5. Delinquency Report					17
										6. REO Report					24

										7. Foreclosure Report					25
										8. Prepayment Report					26
										9. Prepayment Detail Report					31
										9. Prepayment Detail Report					31
										10. Realized Loss Report					32
										11. Realized Loss Detail Report					37
				Servicer(s)						11. Realized Loss Detail Report					37
				Servicer(s)						12. Triggers and Adj. Cert. Report					38
				IndyMac Bank						12. Triggers and Adj. Cert. Report					38
				IndyMac Bank						13. Other Related Information					40
										13. Other Related Information					40


				Underwriter(s)
				Lehman Brothers


										Total Number of Pages					41
										Total Number of Pages

				Dates						Contacts

				Cut-Off Date:			July 01, 2005			Brent Hoyler
				Close Date:			July 29, 2005			Administrator
				First Distribution Date:			August 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:			August 25, 2005
										Factor Information:			(800) 735-7777
				Record Date:			July 29, 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 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 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	$	39,130,800.00		39,130,800.00		180,630.04		343,630.89		524,260.93		0.00		0.00		38,787,169.11
1-A-1	SR	$	39,130,800.00		39,130,800.00		180,630.04		343,630.89		524,260.93		0.00		0.00		38,787,169.11
1-A-2	SR	$	3,452,200.00		3,452,200.00		15,935.55		30,315.82		46,251.37		0.00		0.00		3,421,884.18
2-A-1	SR	$	33,743,700.00		33,743,700.00		144,202.99		1,493,934.66		1,638,137.65		0.00		0.00		32,249,765.34
2-A-2	SR	$	2,977,300.00		2,977,300.00		12,723.43		131,813.99		144,537.42		0.00		0.00		2,845,486.01
3-A-1	SR	$	131,304,000.00		131,304,000.00		624,875.35		1,674,953.04		2,299,828.39		0.00		0.00		129,629,046.96
4-A-1	SR	$	97,641,600.00		97,641,600.00		449,065.21		376,684.93		825,750.14		0.00		0.00		97,264,915.07
4-A-2	SR	$	18,899,400.00		18,899,400.00		86,920.56		72,910.72		159,831.28		0.00		0.00		18,826,489.28
5-A-1	SR	$	48,510,000.00		48,510,000.00		220,209.55		8,381.54		228,591.09		0.00		0.00		48,501,618.46
6-A-1	SR	$	52,012,500.00		52,012,500.00		232,139.95		7,760.45		239,900.40		0.00		0.00		52,004,739.55
6-A-2	SR	$	10,067,500.00		10,067,500.00		44,932.83		1,502.10		46,434.93		0.00		0.00		10,065,997.90
A-R	SR/RES	$	100.00		100.00		0.48		100.00		100.48		0.00		0.00		0.00
B-1	SUB	$	14,197,000.00		14,197,000.00		65,242.47		15,346.88		80,589.35		0.00		0.00		14,181,653.12
B-2	SUB	$	7,572,000.00		7,572,000.00		34,797.21		8,185.29		42,982.50		0.00		0.00		7,563,814.71
B-3	SUB	$	4,259,000.00		4,259,000.00		19,572.28		4,603.96		24,176.24		0.00		0.00		4,254,396.04
B-4	SUB	$	4,259,000.00		4,259,000.00		19,572.28		4,603.96		24,176.24		0.00		0.00		4,254,396.04
B-5	SUB	$	3,076,000.00		3,076,000.00		14,135.79		3,325.14		17,460.93		0.00		0.00		3,072,674.86
B-6	SUB	$	2,129,758.00		2,129,758.00		9,787.33		2,302.26		12,089.59		0.00		0.00		2,127,455.74
P	NOF	$	100.00		100.00		0.00		0.00		0.00		0.00		0.00		100.00

Total			473,231,958.00		473,231,958.00		2,174,743.30		4,180,355.63		6,355,098.93		0.00		0.00		469,051,602.37
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	07/01/05		07/30/05		F-30/360		45660LUS6		39,130,800.00		1,000.000000		4.616058		8.781596		13.397654	991.218404
1-A-2	07/01/05		07/30/05		F-30/360		45660LUT4		3,452,200.00		1,000.000000		4.616056		8.781594		13.397651	991.218406
2-A-1	07/01/05		07/30/05		F-30/360		45660LUU1		33,743,700.00		1,000.000000		4.273479		44.272995		48.546474	955.727005
2-A-2	07/01/05		07/30/05		F-30/360		45660LUV9		2,977,300.00		1,000.000000		4.273479		44.272996		48.546475	955.727004
3-A-1	07/01/05		07/30/05		F-30/360		45660LUW7		131,304,000.00		1,000.000000		4.758997		12.756299		17.515296	987.243701
4-A-1	07/01/05		07/30/05		F-30/360		45660LUX5		97,641,600.00		1,000.000000		4.599118		3.857832		8.456950	996.142168
4-A-2	07/01/05		07/30/05		F-30/360		45660LUY3		18,899,400.00		1,000.000000		4.599117		3.857833		8.456950	996.142167
5-A-1	07/01/05		07/30/05		F-30/360		45660LUZ0		48,510,000.00		1,000.000000		4.539467		0.172780		4.712247	999.827220
6-A-1	07/01/05		07/30/05		F-30/360		45660LVA4		52,012,500.00		1,000.000000		4.463157		0.149204		4.612360	999.850796
6-A-2	07/01/05		07/30/05		F-30/360		45660LVB2		10,067,500.00		1,000.000000		4.463157		0.149203		4.612360	999.850797
A-R	07/01/05		07/30/05		F-30/360		45660LVC0		100.00		1,000.000000		4.800000		1,000.000000		1,004.800000	0.000000
B-1	07/01/05		07/30/05		F-30/360		45660LUD8		14,197,000.00		1,000.000000		4.595511		1.080995		5.676506	998.919005
B-2	07/01/05		07/30/05		F-30/360		45660LVE6		7,572,000.00		1,000.000000		4.595511		1.080994		5.676506	998.919006
B-3	07/01/05		07/30/05		F-30/360		45660LVF3		4,259,000.00		1,000.000000		4.595511		1.080996		5.676506	998.919004
B-4	07/01/05		07/30/05		F-30/360		45660LVG1		4,259,000.00		1,000.000000		4.595511		1.080996		5.676506	998.919004
B-5	07/01/05		07/30/05		F-30/360		45660LVH9		3,076,000.00		1,000.000000		4.595510		1.080995		5.676505	998.919005
B-6	07/01/05		07/30/05		F-30/360		45660LVJ5		2,129,758.00		1,000.000000		4.595513		1.080996		5.676509	998.919004
P	07/01/05		07/30/05		F-30/360		45660LVK2		100.00		1,000.000000		0.000000		0.000000		0.000000	1,000.000000



Page 2 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 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	39,130,800.00		180,630.04		338,407.37		5,223.52		343,630.89		524,260.93		0.00		0.00		38,787,169.11
1-A-2	3,452,200.00		15,935.55		338,407.37		5,223.52		30,315.82		46,251.37		0.00		0.00		3,421,884.18
2-A-1	33,743,700.00		144,202.99		1,471,225.42		22,709.24		1,493,934.66		1,638,137.65		0.00		0.00		32,249,765.34
2-A-2	2,977,300.00		12,723.43		1,471,225.42		22,709.24		131,813.99		144,537.42		0.00		0.00		2,845,486.01
3-A-1	131,304,000.00		624,875.35		1,649,492.15		25,460.89		1,674,953.04		2,299,828.39		0.00		0.00		129,629,046.96
4-A-1	97,641,600.00		449,065.21		370,958.96		5,725.97		376,684.93		825,750.14		0.00		0.00		97,264,915.07
4-A-2	18,899,400.00		86,920.56		71,802.40		1,108.31		72,910.72		159,831.28		0.00		0.00		18,826,489.28
5-A-1	48,510,000.00		220,209.55		8,254.13		127.41		8,381.54		228,591.09		0.00		0.00		48,501,618.46
6-A-1	52,012,500.00		232,139.95		7,642.48		117.97		7,760.45		239,900.40		0.00		0.00		52,004,739.55
6-A-2	10,067,500.00		44,932.83		7,642.48		117.97		1,502.10		46,434.93		0.00		0.00		10,065,997.90
A-R	100.00		0.48		98.48		1.52		100.00		100.48		0.00		0.00		0.00
B-1	14,197,000.00		65,242.47		15,113.59		233.29		15,346.88		80,589.35		0.00		0.00		14,181,653.12
B-2	7,572,000.00		34,797.21		8,060.87		124.42		8,185.29		42,982.50		0.00		0.00		7,563,814.71
B-3	4,259,000.00		19,572.28		4,533.98		69.98		4,603.96		24,176.24		0.00		0.00		4,254,396.04
B-4	4,259,000.00		19,572.28		4,533.98		69.98		4,603.96		24,176.24		0.00		0.00		4,254,396.04
B-5	3,076,000.00		14,135.79		3,274.59		50.55		3,325.14		17,460.93		0.00		0.00		3,072,674.86
B-6	2,129,758.00		9,787.33		2,267.26		35.00		2,302.26		12,089.59		0.00		0.00		2,127,455.74
P	100.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00		100.00

Total	473,231,958.00		2,174,743.30		5,772,940.93		89,108.78		4,180,355.63		6,355,098.93		0.00		0.00		469,051,602.37


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	5.53927%		39,130,800.00		180,630.04		0.00		0.00		0.00		180,630.04		180,630.04		0.00
1-A-2	5.53927%		3,452,200.00		15,935.55		0.00		0.00		0.00		15,935.55		15,935.55		0.00
2-A-1	5.12817%		33,743,700.00		144,202.99		0.00		0.00		0.00		144,202.99		144,202.99		0.00
2-A-2	5.12817%		2,977,300.00		12,723.43		0.00		0.00		0.00		12,723.43		12,723.43		0.00
3-A-1	5.71080%		131,304,000.00		624,875.35		0.00		0.00		0.00		624,875.35		624,875.35		0.00
4-A-1	5.51894%		97,641,600.00		449,065.21		0.00		0.00		0.00		449,065.21		449,065.21		0.00
4-A-2	5.51894%		18,899,400.00		86,920.56		0.00		0.00		0.00		86,920.56		86,920.56		0.00
5-A-1	5.44736%		48,510,000.00		220,209.55		0.00		0.00		0.00		220,209.55		220,209.55		0.00
6-A-1	5.35579%		52,012,500.00		232,139.95		0.00		0.00		0.00		232,139.95		232,139.95		0.00
6-A-2	5.35579%		10,067,500.00		44,932.83		0.00		0.00		0.00		44,932.83		44,932.83		0.00
A-R	5.76000%		100.00		0.46		0.00		0.00		0.00		0.46		0.48		0.00
B-1	5.51461%		14,197,000.00		65,242.47		0.00		0.00		0.00		65,242.47		65,242.47		0.00
B-2	5.51461%		7,572,000.00		34,797.21		0.00		0.00		0.00		34,797.21		34,797.21		0.00
B-3	5.51461%		4,259,000.00		19,572.28		0.00		0.00		0.00		19,572.28		19,572.28		0.00
B-4	5.51461%		4,259,000.00		19,572.28		0.00		0.00		0.00		19,572.28		19,572.28		0.00
B-5	5.51461%		3,076,000.00		14,135.79		0.00		0.00		0.00		14,135.79		14,135.79		0.00
B-6	5.51461%		2,129,758.00		9,787.33		0.00		0.00		0.00		9,787.33		9,787.33		0.00
P	0.00000%		100.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00

Total			473,231,958.00		2,174,743.28		0.00		0.00		0.00		2,174,743.28		2,174,743.30		0.00



Page 3 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 25, 2005 Distribution
Collection Account Report
SUMMARY
SUMMARY
												Group 6		Group 5
Principal Collections												9,667.59		8,885.46
Principal Withrawals												0.00		0.00
Principal Other Accounts												0.00		0.00
TOTAL NET PRINCIPAL												9,667.59		8,885.46
Interest Collections												306,292.08		244,567.81
Interest Withdrawals												-0.00		-0.00
Interest Other Accounts												0.00		0.00
Interest Fees												-6,752.82		-6,502.27
TOTAL NET INTEREST												299,539.26		238,065.53
TOTAL AVAILABLE FUNDS FOR DISTRIBUTION												309,206.85		246,950.99

SUMMARY
SUMMARY
						Group 4		Group 3		Group 2		Group 1		Total
Principal Collections						484,532.76		1,675,967.99		1,626,511.83		374,790.00		4,180,355.63
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						484,532.76		1,675,967.99		1,626,511.83		374,790.00		4,180,355.63
Interest Collections						590,704.77		690,334.47		174,542.98		217,379.97		2,223,822.08
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						-11,258.51		-14,794.08		-4,892.74		-4,878.35		-49,078.78
TOTAL NET INTEREST						579,446.26		675,540.39		169,650.24		212,501.62		2,174,743.30
TOTAL AVAILABLE FUNDS FOR DISTRIBUTION						1,063,979.02		2,351,508.38		1,796,162.07		587,291.62		6,355,098.93





Page 4 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 25, 2005 Distribution

PRINCIPAL - COLLECTIONS
PRINCIPAL - COLLECTIONS
													Group 6		Group 5
Scheduled Principal Received													5,400.26		6,718.47
Curtailments													4,267.33		2,166.99
Prepayments In Full													0.00		0.00
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													-4,435.89		-3,616.64
Realized Losses													-0.00		-0.00
Advanced Principal													4,435.89		3,616.64
TOTAL PRINCIPAL COLLECTED													9,667.59		8,885.46
PRINCIPAL - COLLECTIONS
PRINCIPAL - COLLECTIONS
							Group 4		Group 3		Group 2		Group 1		Total
Scheduled Principal Received							17,806.48		13,532.76		10,175.66		9,911.78		63,545.41
Curtailments							18,726.28		12,480.60		336.17		9,878.22		47,855.59
Prepayments In Full							0.00		1,649,954.63		1,616,000.00		355,000.00		3,620,954.63
Repurchased/Substitutions							448,000.00		0.00		0.00		0.00		448,000.00
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							-11,327.24		-11,792.50		-6,792.81		-7,852.24		-45,817.32
Realized Losses							-0.00		-0.00		-0.00		-0.00		-0.00
Advanced Principal							11,327.24		11,792.50		6,792.81		7,852.24		45,817.32
TOTAL PRINCIPAL COLLECTED							484,532.76		1,675,967.99		1,626,511.83		374,790.00		4,180,355.63


PRINCIPAL - WITHDRAWALS

SPACE INTENTIONALLY LEFT BLANK





Page 5 of 41
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2005-AR17

August 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												321,340.74		254,781.90
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												-0.00		-0.00
Delinquent Interest												-231,007.96		-159,164.50
Compensating Interest												0.00		0.00
Civil Relief Act Shortfalls												-0.00		-0.00
Interest Advanced												215,959.30		148,950.41
TOTAL INTEREST COLLECTED												306,292.08		244,567.81
INTEREST - COLLECTIONS
INTEREST - COLLECTIONS
						Group 4		Group 3		Group 2		Group 1		Total
Scheduled Interest						617,352.07		720,787.00		182,304.10		227,175.37		2,323,741.18
Repurchased/Substitution Interest						2,473.33		0.00		0.00		0.00		2,473.33
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		-1,146.80		-904.44		-0.00		-2,051.24
Delinquent Interest						-460,029.40		-496,299.49		-114,417.70		-154,562.51		-1,615,481.56
Compensating Interest						0.00		1,146.80		904.44		0.00		2,051.25
Civil Relief Act Shortfalls						-0.00		-0.00		-0.00		-0.00		-0.00
Interest Advanced						430,908.77		465,846.96		106,656.58		144,767.11		1,513,089.13
TOTAL INTEREST COLLECTED						590,704.77		690,334.47		174,542.98		217,379.97		2,223,822.08




Page 6 of 41
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2005-AR17

August 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 7 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 25, 2005 Distribution

INTEREST - FEES
INTEREST - FEES
												Group 6		Group 5
Current Servicing Fees												5,924.39		6,174.50
Trustee Fees												419.46		327.77
TOTAL INTEREST FEES												6,752.82		6,502.27

INTEREST - FEES
INTEREST - FEES
						Group 4		Group 3		Group 2		Group 1		Total
Current Servicing Fees						10,251.48		13,906.90		4,644.63		4,590.63		45,492.53
Trustee Fees						787.44		887.19		248.11		287.72		2,957.70
TOTAL INTEREST FEES						11,258.51		14,794.08		4,892.74		4,878.35		49,078.78




Page 8 of 41
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2005-AR17

August 25, 2005 Distribution
Credit Enhancement Report
ACCOUNTS


SPACE INTENTIONALLY LEFT BLANK





INSURANCE
INSURANCE
												Group 6		Group 5
PMI PREMIUM												408.98		0.00

INSURANCE
INSURANCE
						Group 4		Group 3		Group 2		Group 1		Total
PMI PREMIUM						219.58		0.00		0.00		0.00		628.56



STRUCTURAL FEATURES

SPACE INTENTIONALLY LEFT BLANK



Page 9 of 41
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Mortgage Pass-Through Certificates
2005-AR17

August 25, 2005 Distribution
Collateral Report


COLLATERAL



													Group 6		Group 5



Loan Count:


Original												244		193
Prior												244		193
Prefunding												0		0
Scheduled Paid Offs												-0		-0
Full Voluntary Prepayments												-0		-0
Repurchases												-0		-0
Liquidations												-0		-0
Current												244		193
Principal Balance:


Original												67,113,761.62		52,443,498.21
Prior												67,113,761.62		52,443,498.21
Prefunding												0.00		0.00
Scheduled Principal												-5,400.26		-6,718.47
Partial Prepayments												-4,267.33		-2,166.99
Full Voluntary Prepayments												-0.00		-0.00
Repurchases												-0.00		-0.00
Liquidations												-0.00		-0.00
Current												67,104,094.03		52,434,612.75

COLLATERAL



							Group 4		Group 3		Group 2		Group 1		Total



Loan Count:
Loan Count:


Original						249		682		78		214		1,660
Prior						249		682		78		214		1,660
Prefunding						0		0		0		0		0
Scheduled Paid Offs						-0		-0		-0		-0		-0
Full Voluntary Prepayments						-0		-8		-3		-2		-13
Repurchases						-1		-0		-0		-0		-1
Liquidations						-0		-0		-0		-0		-0
Current						248		674		75		212		1,646
Principal Balance:


Original						125,990,746.54		141,950,158.25		39,698,392.09		46,035,301.93		473,231,858.64
Prior						125,990,746.54		141,950,158.25		39,698,392.09		46,035,301.93		473,231,858.64
Prefunding						0.00		0.00		0.00		0.00		0.00
Scheduled Principal						-17,806.48		-13,532.76		-10,175.66		-9,911.78		-63,545.41
Partial Prepayments						-18,726.28		-12,480.60		-336.17		-9,878.22		-47,855.59
Full Voluntary Prepayments						-0.00		-1,649,954.63		-1,616,000.00		-355,000.00		-3,620,954.63
Repurchases						-448,000.00		-0.00		-0.00		-0.00		-448,000.00
Liquidations						-0.00		-0.00		-0.00		-0.00		-0.00
Current						125,506,213.78		140,274,190.26		38,071,880.26		45,660,511.93		469,051,503.01







Page 10 of 41
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Mortgage Pass-Through Certificates
2005-AR17

August 25, 2005 Distribution

PREFUNDING

SPACE INTENTIONALLY LEFT BLANK







Page 11 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 25, 2005 Distribution

CHARACTERISTICS
CHARACTERISTICS
												Group 6		Group 5
Weighted Average Coupon Original												5.74560%		5.82986%
Weighted Average Coupon Prior												5.74560%		5.82986%
Weighted Average Coupon Current												5.74560%		5.82986%
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		359
Weighted Avg Remaining Amortization Term Prior												358		359
Weighted Avg Remaining Amortization Term Current												358		359
Weighted Average Seasoning Original												1.98		1.50
Weighted Average Seasoning Prior												1.98		1.50
Weighted Average Seasoning Current												1.98		1.50
CHARACTERISTICS
CHARACTERISTICS
						Group 4		Group 3		Group 2		Group 1		Total
Weighted Average Coupon Original						5.90353%		6.09330%		5.51067%		5.92177%		5.89871%
Weighted Average Coupon Prior						5.90353%		6.09330%		5.51067%		5.92177%		5.89871%
Weighted Average Coupon Current						5.90353%		6.09330%		5.51067%		5.92177%		5.89871%
Weighted Average Months to Maturity Original						358		357		358		356		358
Weighted Average Months to Maturity Prior						358		357		358		356		358
Weighted Average Months to Maturity Current						358		357		358		356		358
Weighted Avg Remaining Amortization Term Original						358		357		358		356		358
Weighted Avg Remaining Amortization Term Prior						358		357		358		356		358
Weighted Avg Remaining Amortization Term Current						358		357		358		356		358
Weighted Average Seasoning Original						2.14		2.41		2.48		2.35		2.17
Weighted Average Seasoning Prior						2.14		2.41		2.48		2.35		2.17
Weighted Average Seasoning Current						2.14		2.41		2.48		2.35		2.17





Page 12 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 25, 2005 Distribution






Page 13 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 25, 2005 Distribution

ARM CHARACTERISTICS
ARM CHARACTERISTICS
												Group 6		Group 5
Weighted Average Margin Original												2.65129%		2.75000%
Weighted Average Margin Prior												2.65129%		2.75000%
Weighted Average Margin Current												2.65129%		2.75000%
Weighted Average Max Rate Original												11.48757%		11.82986%
Weighted Average Max Rate Prior												11.48757%		11.82986%
Weighted Average Max Rate Current												11.48757%		11.82986%
Weighted Average Min Rate Original												2.65129%		2.75000%
Weighted Average Min Rate Prior												2.65129%		2.75000%
Weighted Average Min Rate Current												2.65129%		2.75000%
Weighted Average Cap Up Original												1.15393%		1.72206%
Weighted Average Cap Up Prior												1.15393%		1.72206%
Weighted Average Cap Up Current												1.15393%		1.72206%
Weighted Average Cap Down Original												1.15393%		1.72206%
Weighted Average Cap Down Prior												1.15393%		1.72206%
Weighted Average Cap Down Current												1.15393%		1.72206%

ARM CHARACTERISTICS
ARM CHARACTERISTICS
						Group 4		Group 3		Group 2		Group 1		Total
Weighted Average Margin Original						2.45220%		2.53265%		2.50986%		2.65885%		2.56251%
Weighted Average Margin Prior						2.45220%		2.53265%		2.50986%		2.65885%		2.56251%
Weighted Average Margin Current						2.45220%		2.53265%		2.50986%		2.65885%		2.56251%
Weighted Average Max Rate Original						11.39086%		11.65816%		11.46012%		11.77539%		11.57662%
Weighted Average Max Rate Prior						11.39086%		11.65816%		11.46012%		11.77539%		11.57662%
Weighted Average Max Rate Current						11.39086%		11.65816%		11.46012%		11.77539%		11.57662%
Weighted Average Min Rate Original						2.45220%		2.53265%		2.50986%		2.65885%		2.56251%
Weighted Average Min Rate Prior						2.45220%		2.53265%		2.50986%		2.65885%		2.56251%
Weighted Average Min Rate Current						2.45220%		2.53265%		2.50986%		2.65885%		2.56251%
Weighted Average Cap Up Original						1.66007%		1.57953%		1.69733%		1.53745%		1.56220%
Weighted Average Cap Up Prior						1.66007%		1.57953%		1.69733%		1.53745%		1.56220%
Weighted Average Cap Up Current						1.66007%		1.57953%		1.69733%		1.53745%		1.56220%
Weighted Average Cap Down Original						1.66007%		1.57953%		1.69733%		1.53745%		1.56220%
Weighted Average Cap Down Prior						1.66007%		1.57953%		1.69733%		1.53745%		1.56220%
Weighted Average Cap Down Current						1.66007%		1.57953%		1.69733%		1.53745%		1.56220%





Page 14 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 25, 2005 Distribution

SERVICING FEES & ADVANCES

													Group 6		Group 5




Current Servicing Fees												5,924.39		6,174.50
Delinquent Servicing Fees												15,048.66		10,214.09
TOTAL SERVICING FEES												20,973.05		16,388.59


Total Servicing Fees												20,973.05		16,388.59
Compensating Interest												-0.00		-0.00
Delinquent Servicing Fees												-15,048.66		-10,214.09
COLLECTED SERVICING FEES												5,924.39		6,174.50


Total Advanced Interest												215,959.30		148,950.41
Total Advanced Principal												4,435.89		3,616.64
Aggregate Advances with respect to this Distribution												220,395.19		152,567.05

SERVICING FEES & ADVANCES
SERVICING FEES & ADVANCES

							Group 4		Group 3		Group 2		Group 1		Total




Current Servicing Fees						10,251.48		13,906.90		4,644.63		4,590.63		45,492.53
Delinquent Servicing Fees						29,120.63		30,452.53		7,761.12		9,795.40		102,392.43
TOTAL SERVICING FEES						39,372.11		44,359.43		12,405.75		14,386.03		147,884.96


Total Servicing Fees						39,372.11		44,359.43		12,405.75		14,386.03		147,884.96
Compensating Interest						-0.00		-1,146.80		-904.44		-0.00		-2,051.25
Delinquent Servicing Fees						-29,120.63		-30,452.53		-7,761.12		-9,795.40		-102,392.43
COLLECTED SERVICING FEES						10,251.48		12,760.09		3,740.18		4,590.63		43,441.28


Total Advanced Interest						430,908.77		465,846.96		106,656.58		144,767.11		1,513,089.13
Total Advanced Principal						11,327.24		11,792.50		6,792.81		7,852.24		45,817.32
Aggregate Advances with respect to this Distribution						442,236.01		477,639.46		113,449.39		152,619.35		1,558,906.47







Page 15 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 25, 2005 Distribution

ADDITIONAL COLLATERAL INFORMATION
												Group 6		Group 5
Prepayment Interest Shortfall (PPIS)												0.00		0.00
Compensating Interest												-0.00		-0.00
Net Prepayment Interest Shortfall (PPIS)												0.00		0.00
Weighted Average Net Mortgage Rate												5.355788%		5.447360%

ADDITIONAL COLLATERAL INFORMATION
						Group 4		Group 3		Group 2		Group 1		Total
Prepayment Interest Shortfall (PPIS)						0.00		1,146.80		904.44		0.00		2,051.24
Compensating Interest						-0.00		-1,146.80		-904.44		-0.00		-2,051.25
Net Prepayment Interest Shortfall (PPIS)						0.00		0.00		0.00		0.00		0.00
Weighted Average Net Mortgage Rate						5.518941%		5.710797%		5.128175%		5.539270%		5.514616%




Page 16 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 25, 2005 Distribution
Delinquency Report

	TOTAL
					< 1 PAYMENT		1 PAYMENT		2 PAYMENTS		3+ PAYMENTS		TOTAL
	DELINQUENT		Balance				6,412,934.95		0.00		0.00		6,412,934.95
			% Balance				1.37%		0.00%		0.00%		1.37%
			# Loans				21		0		0		21
			% # Loans				1.28%		0.00%		0.00%		1.28%
	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		6,412,934.95		0.00		0.00		6,412,934.95
			% Balance		0.00%		1.37%		0.00%		0.00%		1.37%
			# Loans		0		21		0		0		21
			% # Loans		0.00%		1.28%		0.00%		0.00%		1.28%









Page 17 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 25, 2005 Distribution


	GROUP 1
					< 1 PAYMENT		1 PAYMENT		2 PAYMENTS		3+ PAYMENTS		TOTAL
	DELINQUENT		Balance				292,307.25		0.00		0.00		292,307.25
			% Balance				0.64%		0.00%		0.00%		0.64%
			# Loans				2		0		0		2
			% # Loans				0.94%		0.00%		0.00%		0.94%
	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		292,307.25		0.00		0.00		292,307.25
			% Balance		0.00%		0.64%		0.00%		0.00%		0.64%
			# Loans		0		2		0		0		2
			% # Loans		0.00%		0.94%		0.00%		0.00%		0.94%










Page 18 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 25, 2005 Distribution

	GROUP 2
					< 1 PAYMENT		1 PAYMENT		2 PAYMENTS		3+ PAYMENTS		TOTAL
	DELINQUENT		Balance				650,000.00		0.00		0.00		650,000.00
			% Balance				1.71%		0.00%		0.00%		1.71%
			# Loans				1		0		0		1
			% # Loans				1.33%		0.00%		0.00%		1.33%
	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		650,000.00		0.00		0.00		650,000.00
			% Balance		0.00%		1.71%		0.00%		0.00%		1.71%
			# Loans		0		1		0		0		1
			% # Loans		0.00%		1.33%		0.00%		0.00%		1.33%










Page 19 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 25, 2005 Distribution

	GROUP 3
					< 1 PAYMENT		1 PAYMENT		2 PAYMENTS		3+ PAYMENTS		TOTAL
	DELINQUENT		Balance				2,534,361.75		0.00		0.00		2,534,361.75
			% Balance				1.81%		0.00%		0.00%		1.81%
			# Loans				11		0		0		11
			% # Loans				1.63%		0.00%		0.00%		1.63%
	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		2,534,361.75		0.00		0.00		2,534,361.75
			% Balance		0.00%		1.81%		0.00%		0.00%		1.81%
			# Loans		0		11		0		0		11
			% # Loans		0.00%		1.63%		0.00%		0.00%		1.63%










Page 20 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 25, 2005 Distribution

	GROUP 4
					< 1 PAYMENT		1 PAYMENT		2 PAYMENTS		3+ PAYMENTS		TOTAL
	DELINQUENT		Balance				1,762,875.00		0.00		0.00		1,762,875.00
			% Balance				1.40%		0.00%		0.00%		1.40%
			# Loans				3		0		0		3
			% # Loans				1.21%		0.00%		0.00%		1.21%
	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		1,762,875.00		0.00		0.00		1,762,875.00
			% Balance		0.00%		1.40%		0.00%		0.00%		1.40%
			# Loans		0		3		0		0		3
			% # Loans		0.00%		1.21%		0.00%		0.00%		1.21%










Page 21 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 25, 2005 Distribution

	GROUP 5
					< 1 PAYMENT		1 PAYMENT		2 PAYMENTS		3+ PAYMENTS		TOTAL
	DELINQUENT		Balance				535,500.00		0.00		0.00		535,500.00
			% Balance				1.02%		0.00%		0.00%		1.02%
			# Loans				1		0		0		1
			% # Loans				0.52%		0.00%		0.00%		0.52%
	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		535,500.00		0.00		0.00		535,500.00
			% Balance		0.00%		1.02%		0.00%		0.00%		1.02%
			# Loans		0		1		0		0		1
			% # Loans		0.00%		0.52%		0.00%		0.00%		0.52%










Page 22 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 25, 2005 Distribution

	GROUP 6
					< 1 PAYMENT		1 PAYMENT		2 PAYMENTS		3+ PAYMENTS		TOTAL
	DELINQUENT		Balance				637,890.95		0.00		0.00		637,890.95
			% Balance				0.95%		0.00%		0.00%		0.95%
			# Loans				3		0		0		3
			% # Loans				1.23%		0.00%		0.00%		1.23%
	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		637,890.95		0.00		0.00		637,890.95
			% Balance		0.00%		0.95%		0.00%		0.00%		0.95%
			# Loans		0		3		0		0		3
			% # Loans		0.00%		1.23%		0.00%		0.00%		1.23%









Page 23 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 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 24 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 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 25 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 25, 2005 Distribution
Prepayment Report

VOLUNTARY PREPAYMENTS
VOLUNTARY PREPAYMENTS

													Group 6		Group 5




Current


Number of Paid in Full Loans												0		0
Number of Repurchased Loans												0		0
Total Number of Loans Prepaid in Full												0		0
Curtailments Amount												4,267.33		2,166.99
Paid in Full Balance												0.00		0.00
Repurchased Loans Balance												0.00		0.00
Total Prepayment Amount												4,267.33		2,166.99

Cumulative


Number of Paid in Full Loans												0		0
Number of Repurchased Loans												0		0
Total Number of Loans Prepaid in Full												0		0
Paid in Full Balance												0.00		0.00
Repurchased Loans Balance												0.00		0.00
Curtailments Amount												4,267.33		2,166.99
Total Prepayment Amount												4,267.33		2,166.99

VOLUNTARY PREPAYMENTS

							Group 4		Group 3		Group 2		Group 1		Total




Current


Number of Paid in Full Loans						0		8		3		2		13
Number of Repurchased Loans						1		0		0		0		1
Total Number of Loans Prepaid in Full						1		8		3		2		14
Curtailments Amount						18,726.28		12,480.60		336.17		9,878.22		47,855.59
Paid in Full Balance						0.00		1,649,954.63		1,616,000.00		355,000.00		3,620,954.63
Repurchased Loans Balance						448,000.00		0.00		0.00		0.00		448,000.00
Total Prepayment Amount						466,726.28		1,662,435.23		1,616,336.17		364,878.22		4,116,810.22

Cumulative


Number of Paid in Full Loans						0		8		3		2		13
Number of Repurchased Loans						1		0		0		0		1
Total Number of Loans Prepaid in Full						1		8		3		2		14
Paid in Full Balance						0.00		1,649,954.63		1,616,000.00		355,000.00		3,620,954.63
Repurchased Loans Balance						448,000.00		0.00		0.00		0.00		448,000.00
Curtailments Amount						18,726.28		12,480.60		336.17		9,878.22		47,855.59
Total Prepayment Amount						466,726.28		1,662,435.23		1,616,336.17		364,878.22		4,116,810.22





Page 26 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 25, 2005 Distribution






Page 27 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 25, 2005 Distribution

VOLUNTARY PREPAYMENTS RATES
VOLUNTARY PREPAYMENTS RATES

													Group 6		Group 5



SMM												0.01%		0.00%
3 Months Avg SMM												0.01%		0.00%
12 Months Avg SMM												0.01%		0.00%
Avg SMM Since Cut-off												0.01%		0.00%


CPR												0.08%		0.05%
3 Months Avg CPR												0.08%		0.05%
12 Months Avg CPR												0.08%		0.05%
Avg CPR Since Cut-off												0.08%		0.05%


PSA												19.24%		16.56%
3 Months Avg PSA Approximation												19.24%		16.55%
12 Months Avg PSA Approximation												19.24%		16.55%
Avg PSA Since Cut-off Approximation												19.24%		16.55%

VOLUNTARY PREPAYMENTS RATES



							Group 4		Group 3		Group 2		Group 1		Total



SMM						0.37%		1.17%		4.07%		0.79%		0.87%
3 Months Avg SMM						0.37%		1.17%		4.07%		0.79%		0.87%
12 Months Avg SMM						0.37%		1.17%		4.07%		0.79%		0.87%
Avg SMM Since Cut-off						0.37%		1.17%		4.07%		0.79%		0.87%


CPR						4.36%		13.18%		39.28%		9.11%		9.96%
3 Months Avg CPR						4.36%		13.18%		39.28%		9.11%		9.96%
12 Months Avg CPR						4.36%		13.18%		39.28%		9.11%		9.96%
Avg CPR Since Cut-off						4.36%		13.18%		39.28%		9.11%		9.96%


PSA						1,019.60%		2,731.94%		7,930.60%		1,941.57%		2,289.96%
3 Months Avg PSA Approximation						1,019.61%		2,731.93%		7,930.59%		1,941.58%		2,289.95%
12 Months Avg PSA Approximation						1,019.61%		2,731.93%		7,930.59%		1,941.58%		2,289.95%
Avg PSA Since Cut-off Approximation						1,019.61%		2,731.93%		7,930.59%		1,941.58%		2,289.95%







Page 28 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 25, 2005 Distribution











Page 29 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 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 30 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 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

120389561 3			48,300.00		48,119.63			29-Jul-2005		6.375%		AL - 70.00%		Paid Off - 360		01-Apr-2005
			48,300.00

120396187 3			270,000.00		270,000.00			26-Jul-2005		6.500%		MD - 90.00%		Paid Off - 360		01-May-2005
120396187 3					270,000.00			26-Jul-2005		6.500%		MD - 90.00%		Paid Off - 360		01-May-2005
120396333 3			181,350.00		181,350.00			18-Jul-2005		7.000%		FL - 90.00%		Paid Off - 360		01-Jun-2005
120396333 3					181,350.00			18-Jul-2005		7.000%		FL - 90.00%		Paid Off - 360		01-Jun-2005
120396336 3			151,200.00		151,200.00			11-Aug-2005		6.625%		IL - 80.00%		Paid Off - 360		01-Jun-2005
120396336 3					151,200.00			11-Aug-2005		6.625%		IL - 80.00%		Paid Off - 360		01-Jun-2005
120396337 3			325,000.00		325,000.00			27-Jul-2005		6.375%		MA - 59.63%		Paid Off - 360		01-Jun-2005
120396337 3					325,000.00			27-Jul-2005		6.375%		MA - 59.63%		Paid Off - 360		01-Jun-2005
120396952 1			195,000.00		195,000.00			10-Aug-2005		5.625%		GA - 80.00%		Paid Off - 360		01-Jun-2005
120396952 1					195,000.00			10-Aug-2005		5.625%		GA - 80.00%		Paid Off - 360		01-Jun-2005
120999369 3			328,000.00		328,000.00			26-Jul-2005		5.875%		CA - 80.00%		Paid Off - 360		01-Jun-2005
120999369 3					328,000.00			26-Jul-2005		5.875%		CA - 80.00%		Paid Off - 360		01-Jun-2005
121156672 3			156,685.00		156,685.00			01-Aug-2005		6.000%		FL - 80.00%		Paid Off - 360		01-Jul-2005
121156672 3					156,685.00			01-Aug-2005		6.000%		FL - 80.00%		Paid Off - 360		01-Jul-2005
121411864 2			433,000.00		433,000.00			26-Jul-2005		5.375%		VA - 64.15%		Paid Off - 360		01-Jul-2005
121411864 2					433,000.00			26-Jul-2005		5.375%		VA - 64.15%		Paid Off - 360		01-Jul-2005
121442277 3			189,600.00		189,600.00			12-Aug-2005		5.750%		CA - 80.00%		Paid Off - 360		01-Jul-2005
121442277 3					189,600.00			12-Aug-2005		5.750%		CA - 80.00%		Paid Off - 360		01-Jul-2005
121465626 1			160,000.00		160,000.00			05-Aug-2005		5.250%		NC - 80.00%		Paid Off - 360		01-Aug-2005
121465626 1					160,000.00			05-Aug-2005		5.250%		NC - 80.00%		Paid Off - 360		01-Aug-2005
121571035 2			483,000.00		483,000.00			21-Jul-2005		4.875%		CA - 56.82%		Paid Off - 360		01-Jul-2005
121571035 2					483,000.00			21-Jul-2005		4.875%		CA - 56.82%		Paid Off - 360		01-Jul-2005
121596020 2			700,000.00		700,000.00			12-Aug-2005		6.125%		NJ - 80.00%		Paid Off - 360		01-Sep-2005
121596020 2					700,000.00			12-Aug-2005		6.125%		NJ - 80.00%		Paid Off - 360		01-Sep-2005
121636920 4			448,000.00		448,000.00			01-Jan-1900		6.625%		CA - 80.00%		Repur/Subs - 360		01-Aug-2005
121636920 4					448,000.00			01-Jan-1900		6.625%		CA - 80.00%		Repur/Subs - 360		01-Aug-2005


TOTAL			4,069,135.00		4,068,954.63
TOTAL


Page 31 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 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														7,682,810.00
		Fraud Loss Coverage Amt														21,622,413.00
		Bankruptcy Loss Coverage Amt														0.00







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IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 25, 2005 Distribution





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IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 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-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 25, 2005 Distribution








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IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 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 36 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 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 37 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 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								Yes



ADJUSTABLE RATE CERTIFICATE INFORMATION

SPACE INTENTIONALLY LEFT BLANK





Page 38 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 25, 2005 Distribution

ADDITIONAL INFORMATION
ADDITIONAL INFORMATION
												Group 6		Group 5
Current Senior Percentage												92.499658%		92.499550%
Current Subordinate Percentage												7.500342%		7.500450%
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						92.499650%		92.500073%		92.499968%		92.500968%
Current Subordinate Percentage						7.500350%		7.499927%		7.500032%		7.499032%
Senior Prepayment Percentage						100.000000%		100.000000%		100.000000%		100.000000%
Subordinate Prepayment Percentage						0.000000%		0.000000%		0.000000%		0.000000%




Page 39 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 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 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 40 of 41
IndyMac INDX Mortgage Loan Trust 2005-AR17

Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
2005-AR17

August 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 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														0.00




Page 41 of 41

IndyMac INDX Mortgage Loan Trust 2005-AR17 8-K