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): ~~November~~December 2627, 2004 (Date of earliest event reported) Indymac MBS Inc (as Depositor under the Pooling and Servicing Agreement, dated as June 1, 2004, providing for the issuance of Residential Asset Securitization Trust Series 2004-A4 Mortgage Pass-Through Certificates, Series 2004-D) (Exact name of registrant as specified in charter) DELAWARE (State or Other Jurisdiction of Incorporation) 333-116470-03 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 ~~November~~December 2627, 2004. 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: Dec 1531, 2004 By: /s/ Katherine M. Wannenmacher Katherine M. Wannenmacher Vice President EXHIBIT INDEX DOCUMENT 99.1 Monthly Remittance Statement to the Certificateholders dated as of ~~November~~December 2627, 2004.

	IndyMac Residential Asset Securitization Trust 2004-A4
	Collateralized Asset-Backed Bonds
	November 26, 2004 Distribution
	December 27, 2004 Distribution
	Contents
			TABLE OF CONTENTS
								Page
			1.	Contents				1
			2.	Certificate Payment Report				2
			3.	Collection Account Report				8
			4.	Credit Enhancement Report				11
			5.	Collateral Report				12
			6.	Delinquency Report				15
			7.	REO Report				16
			8.	Prepayment Report				17
			9.	Prepayment Detail Report				20
			10.	Realized Loss Report				21
			11.	Realized Loss Detail Report				24
			12.	Triggers, Adj. Rate Cert. and Miscellaneous Report				25
			13.	Other Related Information				26
			14.	Additional Certificate Report				27
				Total Number of Pages				27
			CONTACTS
				Administrator: Brent Hoyler
				Direct Phone Number: (714)247-6322
				Address: Deutsche Bank
				1761 E. St. Andrew Place, Santa Ana, CA 92705
				Web Site: https://www.tss.db.com/invr
				Factor Information: (800) 735-7777
				Main Phone Number: (714) 247-6000
ISSUANCE INFORMATION
	Seller:		IndyMac Bank					Cut-Off Date: June 1, 2004
	Certificate Insurer(s):							Closing Date: June 29, 2004
								First Payment Date: July 26, 2004
	Servicer(s):		IndyMac Bank Master Servicer
								Distribution Date: November 26, 2004
								Distribution Date: December 27, 2004
	Underwriter(s):		Bear, Stearns & Co. Inc Underwriter					Record Date: ~~October~~November 2930, 2004
			Goldman, Sachs & Co. Underwriter
						Page 1 of 27					© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A4
	Collateralized Asset-Backed Bonds
	Subsidiary REMIC Series 2004-A4
	Certificate Payment Report for November 26, 2004 Distribution
	Certificate Payment Report for December 27, 2004 Distribution
	Distribution in Dollars - Current Period
					Prior						Current
	Class	Original			Principal			Total	Realized	Deferred	Principal
Class	Type	Face Value			Balance	Interest	Principal	Distribution	Losses	Interest	Balance
					(1)	(2)	(3)	(4)=(2)+(3)	(5)	(6)	(7)=(1)-(3)-(5)+(6)
SUB-REMIC		254,900,638.00			~~234~~228,~~285~~279,~~772~~699.6639	1,~~115~~085,~~817~~030.5531	64,~~051~~344,~~585~~196.6939	75,~~167~~429,~~403~~226.2470	-	45,~~512~~721.4202	~~228~~223,~~279~~981,~~699~~224.3902
Total		254,900,638.00			~~234~~228,~~285~~279,~~772~~699.6639	1,~~115~~085,~~817~~030.5531	64,~~051~~344,~~585~~196.6939	75,~~167~~429,~~403~~226.2470	-	45,~~512~~721.4202	~~228~~223,~~279~~981,~~699~~224.3902
	Interest Accrual Detail				Current Period Factor Information per $1,000 of Original Face
						Orig. Principal	Prior				Current
	Period	Period				(with Notional)	Principal			Total	Principal
Class	Starting	Ending		Method	Cusip	Balance	Balance	Interest	Principal	Distribution	Balance
							(1)	(2)	(3)	(4)=(2)+(3)	(5)
SUB-REMIC	1011/25/04	1112/24/04		A-30/360		254,900,638.00	~~919~~895.~~125878~~563468	4.~~377461~~256679	2317.~~740959~~042705	2821.~~118420~~299385	~~895~~878.~~563468~~700131
							Page 2 of 27				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A4
	Collateralized Asset-Backed Bonds
	Subsidiary REMIC Series 2004-A4
	Certificate Payment Report for November 26, 2004 Distribution
	Certificate Payment Report for December 27, 2004 Distribution
	Distribution in Dollars - to Date
											Current
	Original				Unscheduled	Scheduled	Total	Total	Realized	Deferred	Principal
Class	Face Value		Interest		Principal	Principal	Principal	Distribution	Losses	Interest	Balance
	(1)		(2)		(3)	(4)	(5)=(3)+(4)	(6)=(2)+(5)	(7)	(8)	(9)=(1)-(5)-(7)+(8)
SUB-REMIC	254,900,638.00		57,~~924~~009,~~381~~411.6293		5159,~~275~~507,~~491~~010.5649	-	2631,~~846~~190,~~433~~630.6908	3238,~~770~~200,~~815~~042.3101	-	~~180~~226,~~807~~528.5860	~~228~~223,~~279~~981,~~699~~224.3902
Total	254,900,638.00		57,~~924~~009,~~381~~411.6293		5159,~~275~~507,~~491~~010.5649	-	2631,~~846~~190,~~433~~630.6908	3238,~~770~~200,~~815~~042.3101	-	~~180~~226,~~807~~528.5860	~~228~~223,~~279~~981,~~699~~224.3902
	Interest Detail
	Pass-	Prior Principal				Non-	Prior	Unscheduled		Paid or	Current
	Through	(with Notional)			Accrued	Supported	Unpaid	Interest	Optimal	Deferred	Unpaid
Class	Rate	Balance			Interest	Interest SF	Interest	Adjustments	Interest	Interest	Interest
					(1)	(2)	(3)	(4)	(5)=(1)-(2)+(3)+(4)	(6)	(7)=(5)-(6)
SUB-REMIC	5.~~94828~~94403%	~~234~~228,~~285~~279,~~772~~699.6639			1,~~161~~130,~~329~~751.9733	-	-	-	1,~~161~~130,~~329~~751.9733	1,~~161~~130,~~329~~751.9733	-
Total		~~234~~228,~~285~~279,~~772~~699.6639			1,~~161~~130,~~329~~751.9733	-	-	-	1,~~161~~130,~~329~~751.9733	1,~~161~~130,~~329~~751.9733	-
							Page 3 of 27				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A4
	Collateralized Asset-Backed Bonds
	Master REMIC Series 2004-A4
	Certificate Payment Report for November 26, 2004 Distribution
	Certificate Payment Report for December 27, 2004 Distribution
	Distribution in Dollars - Current Period
					Prior						Current
	Class	Original			Principal			Total	Realized	Deferred	Principal
Class	Type	Face Value			Balance	Interest	Principal	Distribution	Losses	Interest	Balance
					(1)	(2)	(3)	(4)=(2)+(3)	(5)	(6)	(7)=(1)-(3)-(5)+(6)
A-1		62,906,667.00			5755,~~028~~585,~~692~~652.9069	~~237~~231,~~619~~606.5589	1,~~443~~432,~~040~~605.2104	1,~~680~~664,~~659~~211.7693	-	-	5554,~~585~~153,~~652~~047.6965
A-2		12,581,333.00			11,~~405~~117,~~738~~130.2320	2123,~~694~~444.6645	~~288~~286,~~608~~521.0300	~~310~~309,~~302~~965.6945	-	-	1110,~~117~~830,~~130~~609.20
A-3		-			-	5450,~~343~~669.5975	-	5450,~~343~~669.5975	-	-	-
A-4		5,000,000.00			5,000,000.00	22,916.67	-	22,916.67	-	-	5,000,000.00
A-5		17,000,000.00			17,000,000.00	77,916.67	-	77,916.67	-	-	17,000,000.00
A-6		255,000.00			255,000.00	1,168.75	-	1,168.75	-	-	255,000.00
A-7		14,618,000.00			14,618,000.00	66,999.17	-	66,999.17	-	-	14,618,000.00
A-8		220,000.00			220,000.00	1,008.33	-	1,008.33	-	-	220,000.00
A-9		9,100,000.00			9,100,000.00	41,708.33	-	41,708.33	-	-	9,100,000.00
A-10		59,076,391.00			5047,~~849~~257,~~412~~466.6228	~~233~~216,~~059~~596.8172	32,~~591~~113,~~946~~118.3471	32,~~825~~329,~~006~~715.1543	-	-	4745,~~257~~144,~~466~~347.2857
A-11		9,750,000.00			9,~~929~~975,~~982~~495.6608	-	-	-	-	45,~~512~~721.4202	910,~~975~~021,~~495~~216.0810
A-12		3,000,000.00			-	-	-	-	-	-	-
A-13		23,889,609.00			21,~~878~~291,~~443~~992.6758	4548,~~261~~450.0346	~~586~~420,~~451~~723.0908	~~631~~469,~~712~~173.1254	-	-	2120,~~291~~871,~~992~~269.5850
A-14		-			-	~~100~~93,~~595~~496.2616	-	~~100~~93,~~595~~496.2616	-	-	-
A-15		21,500,000.00			21,500,000.00	98,541.67	-	98,541.67	-	-	21,500,000.00
PO		2,620,086.00			2,~~582~~577,~~190~~449.3568	-	463,~~740~~094.6772	463,~~740~~094.6772	-	-	2,~~577~~514,~~449~~354.6896
A-X		-			-	5149,~~084~~262.2901	-	5149,~~084~~262.2901	-	-	-
A-R		100.00			-	-	-	-	-	-	-
Total		241,517,186.00			~~221~~215,~~367~~498,~~460~~186.4351	1,~~053~~023,~~917~~786.7803	54,~~914~~316,~~786~~062.3455	65,~~968~~339,~~704~~848.1258	-	45,~~512~~721.4202	~~215~~211,~~498~~227,~~186~~844.5198
Interest payments to Class PO represent payments of the Class PO Deferred Amount
	Interest Accrual Detail				Current Period Factor Information per $1,000 of Original Face
						Orig. Principal	Prior				Current
	Period	Period				(with Notional)	Principal			Total	Principal
Class	Starting	Ending		Method	Cusip	Balance	Balance	Interest	Principal	Distribution	Balance
							(1)	(2)	(3)	(4)=(2)+(3)	(5)
A-1	1011/25/04	1112/24/04		F-30/360	45660NJ22	62,906,667.00	~~906~~883.~~560395~~621011	3.~~777335~~681754	22.~~939384~~773501	26.~~716719~~455255	~~883~~860.~~621011~~847510
A-2	1011/25/04	1112/24/04		A-30/360	45660NJ30	12,581,333.00	~~906~~883.~~560396~~621012	1.~~724353~~863431	22.~~939384~~773501	24.~~663737~~636932	~~883~~860.~~621012~~847511
A-3	1011/25/04	1112/24/04		A-30/360	45660NJ48	12,581,333.00	~~906~~883.~~560396~~621012	4.~~319383~~027375	-	4.~~319383~~027375	~~883~~860.~~621012~~847511
A-4	1011/25/04	1112/24/04		F-30/360	45660NJ55	5,000,000.00	1,000.000000	4.583334	-	4.583334	1,000.000000
A-5	1011/25/04	1112/24/04		F-30/360	45660NJ63	17,000,000.00	1,000.000000	4.583334	-	4.583334	1,000.000000
A-6	1011/25/04	1112/24/04		F-30/360	45660NJ71	255,000.00	1,000.000000	4.583333	-	4.583333	1,000.000000
A-7	1011/25/04	1112/24/04		F-30/360	45660NJ89	14,618,000.00	1,000.000000	4.583334	-	4.583334	1,000.000000
A-8	1011/25/04	1112/24/04		F-30/360	45660NJ97	220,000.00	1,000.000000	4.583318	-	4.583318	1,000.000000
A-9	1011/25/04	1112/24/04		F-30/360	45660NK20	9,100,000.00	1,000.000000	4.583333	-	4.583333	1,000.000000
A-10	1011/25/04	1112/24/04		F-30/360	45660NK38	59,076,391.00	~~860~~799.~~739997~~938274	3.~~945058~~666384	6035.~~801723~~769259	6439.~~746781~~435642	~~799~~764.~~938274~~169016
A-11	1011/25/04	1112/24/04		F-30/360	45660NK46	9,750,000.00	1,~~018~~023.~~459760~~127701	-	-	-	1,~~023~~027.~~127701~~817036
A-12	1011/25/04	1112/24/04		F-30/360	45660NK53	3,000,000.00	-	-	-	-	-
A-13	1011/25/04	1112/24/04		A-30/360	45660NK61	23,889,609.00	~~915~~891.~~814222~~265846	12.~~894591~~028098	2417.~~548375~~611133	2619.~~442966~~639231	~~891~~873.~~265846~~654713
A-14	1011/25/04	1112/24/04		A-30/360	45660NK79	23,889,609.00	~~915~~891.~~814222~~265846	43.~~210837~~913675	-	43.~~210837~~913675	~~891~~873.~~265846~~654713
A-15	1011/25/04	1112/24/04		F-30/360	45660NK87	21,500,000.00	1,000.000000	4.583333	-	4.583333	1,000.000000
PO	1011/25/04	1112/24/04		F-30/360	45660NK95	2,620,086.00	~~985~~983.~~536486~~727130	-	124.~~809357~~081164	124.~~809357~~081164	~~983~~959.~~727130~~645966
A-X	1011/25/04	1112/24/04		A-30/360	45660NL29	254,900,538.00	~~527~~507.~~813891~~842332	0.~~200409~~193260	-	0.~~200409~~193260	~~507~~498.~~842332~~503778
A-R	1011/25/04	1112/24/04		F-30/360	45660NL37	100.00	-	-	-	-	-
							Page 4 of 27				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A4
	Collateralized Asset-Backed Bonds
	Master REMIC Series 2004-A4
	Certificate Payment Report for November 26, 2004 Distribution
	Certificate Payment Report for December 27, 2004 Distribution
	Distribution in Dollars - to Date
											Current
	Original				Unscheduled	Scheduled	Total	Total	Realized	Deferred	Principal
Class	Face Value		Interest		Principal	Principal	Principal	Distribution	Losses	Interest	Balance
	(1)		(2)		(3)	(4)	(5)=(3)+(4)	(6)=(2)+(5)	(7)	(8)	(9)=(1)-(5)-(7)+(8)
A-1	62,906,667.00		1,~~250~~482,~~587~~194.6453		68,~~860~~217,~~255~~527.5289	~~460~~536,~~758~~091.7946	78,~~321~~753,~~014~~619.3135	810,~~571~~235,~~601~~813.9588	-	-	5554,~~585~~153,~~652~~047.6965
A-2	12,581,333.00		96119,~~408~~853.6813		1,~~372~~643,~~051~~505.0451	92107,~~151~~218.7629	1,~~464~~750,~~202~~723.80	1,~~560~~870,~~611~~576.4893	-	-	1110,~~117~~830,~~130~~609.20
A-3	-		~~303~~354,~~779~~449.3611		-	-	-	~~303~~354,~~779~~449.3611	-	-	-
A-4	5,000,000.00		~~114~~137,~~583~~500.3502		-	-	-	~~114~~137,~~583~~500.3502	-	-	5,000,000.00
A-5	17,000,000.00		~~389~~467,~~583~~500.3502		-	-	-	~~389~~467,~~583~~500.3502	-	-	17,000,000.00
A-6	255,000.00		57,~~843~~012.7550		-	-	-	57,~~843~~012.7550	-	-	255,000.00
A-7	14,618,000.00		~~334~~401,995.8502		-	-	-	~~334~~401,995.8502	-	-	14,618,000.00
A-8	220,000.00		56,~~041~~049.6598		-	-	-	56,~~041~~049.6598	-	-	220,000.00
A-9	9,100,000.00		~~208~~250,~~541~~249.6598		-	-	-	~~208~~250,~~541~~249.6598	-	-	9,100,000.00
A-10	59,076,391.00		1,~~291~~507,~~332~~929.4921		1113,~~370~~372,~~406~~408.8348	~~448~~559,~~517~~634.8995	1113,~~818~~932,~~924~~043.7243	1315,~~110~~439,~~257~~972.2164	-	-	4745,~~257~~144,~~466~~347.2857
A-11	9,750,000.00		-		-	-	-	-	-	~~180~~226,~~807~~528.5860	910,~~975~~021,~~495~~216.0810
A-12	3,000,000.00		55,000.00		2,935,431.67	64,568.33	3,000,000.00	3,055,000.00	-	-	-
A-13	23,889,609.00		~~205~~253,~~368~~819.8127		2,~~480~~879,~~860~~459.0566	~~116~~138,~~756~~879.3784	23,~~597~~018,~~616~~339.4250	23,~~802~~272,~~985~~158.2377	-	-	2120,~~291~~871,~~992~~269.5850
A-14	-		~~566~~659,~~167~~663.5066		-	-	-	~~566~~659,~~167~~663.5066	-	-	-
A-15	21,500,000.00		~~492~~591,~~708~~250.3502		-	-	-	~~492~~591,~~708~~250.3502	-	-	21,500,000.00
PO	2,620,086.00		-		3898,~~801~~578.2618	37,~~835~~152.0686	42105,~~636~~731.3204	42105,~~636~~731.3204	-	-	2,~~577~~514,~~449~~354.6896
A-X	-		~~286~~336,~~833~~095.7980		-	-	-	~~286~~336,~~833~~095.7980	-	-	-
A-R	100.00		0.46		84.15	15.85	100.00	100.46	-	-	-
Total	241,517,186.00		56,~~606~~630,~~776~~562.6871		2529,~~057~~146,~~890~~995.5254	1,~~186~~413,~~604~~561.0558	2630,~~244~~560,~~494~~557.5712	3137,~~851~~191,~~271~~119.2583	-	~~180~~226,~~807~~528.5860	~~215~~211,~~498~~227,~~186~~844.5198
	Interest Detail
	Pass-	Prior Principal				Non-	Prior	Unscheduled		Paid or	Current
	Through	(with Notional)			Accrued	Supported	Unpaid	Interest	Optimal	Deferred	Unpaid
Class	Rate	Balance			Interest	Interest SF	Interest	Adjustments	Interest	Interest	Interest
					(1)	(2)	(3)	(4)	(5)=(1)-(2)+(3)+(4)	(6)	(7)=(5)-(6)
A-1	5.00000%	5755,~~028~~585,~~692~~652.9069			~~237~~231,~~619~~606.5589	-	-	-	~~237~~231,~~619~~606.5589	~~237~~231,~~619~~606.5589	-
A-2	2.~~28250~~53063%	11,~~405~~117,~~738~~130.2320			2123,~~694~~444.6645	-	-	-	2123,~~694~~444.6645	2123,~~694~~444.6645	-
A-3	5.~~71750~~46937%	11,~~405~~117,~~738~~130.2320			5450,~~343~~669.5975	-	-	-	5450,~~343~~669.5975	5450,~~343~~669.5975	-
A-4	5.50000%	5,000,000.00			22,916.67	-	-	-	22,916.67	22,916.67	-
A-5	5.50000%	17,000,000.00			77,916.67	-	-	-	77,916.67	77,916.67	-
A-6	5.50000%	255,000.00			1,168.75	-	-	-	1,168.75	1,168.75	-
A-7	5.50000%	14,618,000.00			66,999.17	-	-	-	66,999.17	66,999.17	-
A-8	5.50000%	220,000.00			1,008.33	-	-	-	1,008.33	1,008.33	-
A-9	5.50000%	9,100,000.00			41,708.33	-	-	-	41,708.33	41,708.33	-
A-10	5.50000%	5047,~~849~~257,~~412~~466.6228			~~233~~216,~~059~~596.8172	-	-	-	~~233~~216,~~059~~596.8172	~~233~~216,~~059~~596.8172	-
A-11	5.50000%	9,~~929~~975,~~982~~495.6608			45,~~512~~721.4202	-	-	-	45,~~512~~721.4202	45,~~512~~721.4202	-
A-12	5.50000%	-			-	-	-	-	-	-	-
A-13	2.~~48250~~73063%	21,~~878~~291,~~443~~992.6758			4548,~~261~~450.0346	-	-	-	4548,~~261~~450.0346	4548,~~261~~450.0346	-
A-14	5.~~51750~~26937%	21,~~878~~291,~~443~~992.6758			~~100~~93,~~595~~496.2616	-	-	-	~~100~~93,~~595~~496.2616	~~100~~93,~~595~~496.2616	-
A-15	5.50000%	21,500,000.00			98,541.67	-	-	-	98,541.67	98,541.67	-
PO		2,~~582~~577,~~190~~449.3568			-	-	-	-	-	-	-
A-X	0.~~45563~~45666%	~~134~~129,~~540~~449,~~044~~283.8275			5149,~~084~~262.2901	-	-	-	5149,~~084~~262.2901	5149,~~084~~262.2901	-
A-R	5.50000%	-			-	-	-	-	-	-	-
Total		~~389~~377,~~191~~356,~~687~~593.1504			1,~~099~~069,~~430~~507.2005	-	-	-	1,~~099~~069,~~430~~507.2005	1,~~099~~069,~~430~~507.2005	-
							Page 5 of 27				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A4
	Collateralized Asset-Backed Bonds
	Master REMIC Series 2004-A4
	Certificate Payment Report for November 26, 2004 Distribution
	Certificate Payment Report for December 27, 2004 Distribution
	Distribution in Dollars - Current Period
					Prior						Current
	Class	Original			Principal			Total	Realized	Deferred	Principal
Class	Type	Face Value			Balance	Interest	Principal	Distribution	Losses	Interest	Balance
					(1)	(2)	(3)	(4)=(2)+(3)	(5)	(6)	(7)=(1)-(3)-(5)+(6)
B-1		8,794,000.00			8,~~488~~398,~~363~~474.6383	40,~~673~~242.4169	8918,~~888~~486.8033	~~130~~58,~~562~~729.2102	-	-	8,~~398~~379,~~474~~988.8350
B-2		1,784,000.00			1,~~721~~703,~~996~~761.9056	8,~~251~~163.2486	183,~~235~~750.3424	2611,~~486~~914.5810	-	-	1,~~703~~700,~~761~~011.5632
B-3		1,020,000.00			~~984~~974,~~549~~123.7975	4,~~717~~667.6368	102,~~426~~144.0420	156,~~143~~811.6788	-	-	~~974~~971,~~123~~979.7555
B-4		764,000.00			~~737~~729,~~447~~637.1079	3,~~533~~496.6018	71,~~809~~606.3104	115,~~342~~102.9122	-	-	~~729~~728,~~637~~031.7975
B-5		383,000.00			~~369~~365,~~688~~773.8092	1,~~771~~752.4367	~~3,914~~805.8812	52,~~686~~557.3179	-	-	~~365~~364,~~773~~968.9280
B-6		638,352.00			~~616~~609,~~166~~641.0103	2,~~952~~921.4620	61,~~524~~341.9891	94,~~477~~263.4411	-	-	~~609~~608,~~641~~299.0312
P		100.00			100.00	-	-	-	-	-	100.00
Total		13,383,452.00			12,~~918~~781,~~312~~512.2388	61,~~899~~244.7728	~~136~~28,~~799~~133.3584	~~198~~89,~~699~~378.12	-	-	12,~~781~~753,~~512~~379.8804
Interest payments to Class PO represent payments of the Class PO Deferred Amount
	Interest Accrual Detail				Current Period Factor Information per $1,000 of Original Face
						Orig. Principal	Prior				Current
	Period	Period				(with Notional)	Principal			Total	Principal
Class	Starting	Ending		Method	Cusip	Balance	Balance	Interest	Principal	Distribution	Balance
							(1)	(2)	(3)	(4)=(2)+(3)	(5)
B-1	1011/25/04	1112/24/04		F-30/360	45660NL45	8,794,000.00	~~965~~955.~~244898~~023292	4.~~625132~~576153	102.~~221606~~102153	146.~~846738~~678306	~~955~~952.~~023292~~921139
B-2	1011/25/04	1112/24/04		F-30/360	45660NL52	1,784,000.00	~~965~~955.~~244899~~023296	4.~~625135~~576155	102.~~221603~~102152	146.~~846738~~678307	~~955~~952.~~023296~~921143
B-3	1011/25/04	1112/24/04		F-30/360	45660NL60	1,020,000.00	~~965~~955.~~244892~~023284	4.~~625127~~576157	102.~~221608~~102157	146.~~846735~~678314	~~955~~952.~~023284~~921127
B-4	1011/25/04	1112/24/04		F-30/360	45660NM69	764,000.00	~~965~~955.~~244895~~023285	4.~~625131~~576152	102.~~221610~~102147	146.~~846741~~678298	~~955~~952.~~023285~~921139
B-5	1011/25/04	1112/24/04		F-30/360	45660NM77	383,000.00	~~965~~955.~~244909~~023290	4.~~625144~~576162	102.~~221619~~102141	146.~~846762~~678303	~~955~~952.~~023290~~921149
B-6	1011/25/04	1112/24/04		F-30/360	45660NM85	638,352.00	~~965~~955.~~244896~~023294	4.~~625128~~576159	102.~~221602~~102147	146.~~846730~~678306	~~955~~952.~~023294~~921147
P	1011/25/04	1112/24/04		A-30/360		100.00	1,000.000000	-	-	-	1,000.000000
							Page 6 of 27				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A4
	Collateralized Asset-Backed Bonds
	Master REMIC Series 2004-A4
	Certificate Payment Report for November 26, 2004 Distribution
	Certificate Payment Report for December 27, 2004 Distribution
	Distribution in Dollars - to Date
											Current
	Original				Unscheduled	Scheduled	Total	Total	Realized	Deferred	Principal
Class	Face Value		Interest		Principal	Principal	Principal	Distribution	Losses	Interest	Balance
	(1)		(2)		(3)	(4)	(5)=(3)+(4)	(6)=(2)+(5)	(7)	(8)	(9)=(1)-(5)-(7)+(8)
B-1	8,794,000.00		~~208~~248,~~693~~936.4514		~~381~~398,~~014~~528.1943	1415,~~510~~483.9807	~~395~~414,~~525~~011.1750	~~604~~662,~~218~~947.6264	-	-	8,~~398~~379,~~474~~988.8350
B-2	1,784,000.00		4250,~~336~~500.7258		7780,~~294~~847.6670	23,~~943~~140.7898	8083,~~238~~988.4468	~~122~~134,~~575~~489.1626	-	-	1,~~703~~700,~~761~~011.5632
B-3	1,020,000.00		2428,~~205~~873.9765		4446,~~193~~224.1560	1,~~683~~795.1085	4548,~~876~~020.2545	7076,~~082~~894.2210	-	-	~~974~~971,~~123~~979.7555
B-4	764,000.00		1821,~~130~~626.7492		3334,~~101~~623.5312	1,~~260~~345.6813	3435,~~362~~968.2125	5257,~~492~~595.9517	-	-	~~729~~728,~~637~~031.7975
B-5	383,000.00		910,~~089~~841.1279		1617,~~594~~356.1088	~~631~~674.9832	1718,~~226~~031.0820	2628,~~315~~872.2099	-	-	~~365~~364,~~773~~968.9280
B-6	638,352.00		1518,~~148~~070.9414		2728,~~657~~928.6398	1,~~053~~123.3490	2830,~~710~~052.9788	4348,~~859~~123.9102	-	-	~~609~~608,~~641~~299.0312
P	100.00		-		2529,~~637~~753,~~745~~505.7824	-	-	-	-	-	100.00
Total	13,383,452.00		~~317~~378,~~604~~849.9422		2630,~~217~~360,~~601~~014.0495	2223,~~083~~563.8625	~~601~~630,~~939~~072.1296	~~919~~1,~~544~~008,922.0618	-	-	12,~~781~~753,~~512~~379.8804
	Interest Detail
	Pass-	Prior Principal				Non-	Prior	Unscheduled		Paid or	Current
	Through	(with Notional)			Accrued	Supported	Unpaid	Interest	Optimal	Deferred	Unpaid
Class	Rate	Balance			Interest	Interest SF	Interest	Adjustments	Interest	Interest	Interest
					(1)	(2)	(3)	(4)	(5)=(1)-(2)+(3)+(4)	(6)	(7)=(5)-(6)
B-1	5.75000%	8,~~488~~398,~~363~~474.6383			40,~~673~~242.4169	-	-	-	40,~~673~~242.4169	40,~~673~~242.4169	-
B-2	5.75000%	1,~~721~~703,~~996~~761.9056			8,~~251~~163.2486	-	-	-	8,~~251~~163.2486	8,~~251~~163.2486	-
B-3	5.75000%	~~984~~974,~~549~~123.7975			4,~~717~~667.6368	-	-	-	4,~~717~~667.6368	4,~~717~~667.6368	-
B-4	5.75000%	~~737~~729,~~447~~637.1079			3,~~533~~496.6018	-	-	-	3,~~533~~496.6018	3,~~533~~496.6018	-
B-5	5.75000%	~~369~~365,~~688~~773.8092			1,~~771~~752.4367	-	-	-	1,~~771~~752.4367	1,~~771~~752.4367	-
B-6	5.75000%	~~616~~609,~~166~~641.0103			2,~~952~~921.4620	-	-	-	2,~~952~~921.4620	2,~~952~~921.4620	-
P		100.00			-	-	-	-	-	-	-
Total		12,~~918~~781,~~312~~512.2388			61,~~899~~244.7728	-	-	-	61,~~899~~244.7728	61,~~899~~244.7728	-
							Page 7 of 27				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A4
	Collateralized Asset-Backed Bonds
	Series 2004-A4
	Collection Account Report for November 26, 2004 Distribution
	Collection Account Report for December 27, 2004 Distribution
	Collection Account Report
SUMMARY								TOTAL
	Principal Collections							64,~~006~~298,~~073~~475.2738
	Principal Withdrawals							0.00
	Principal Other Accounts							0.00
	TOTAL PRINCIPAL							64,~~006~~298,~~073~~475.2738
	Interest Collections							1,~~175~~142,~~429~~359.4349
	Interest Withdrawals							(1411,~~099~~608.4617)
	Interest Other Accounts							0.00
	TOTAL INTEREST							1,~~161~~130,~~329~~751.9732
	TOTAL AVAILABLE FUNDS TO BONDHOLDERS							75,~~167~~429,~~403~~226.2470
	Interest Payable to Bondholders							1,~~161~~130,~~329~~751.9732
	Principal Payment Amount Payable to Bondholders							64,~~006~~298,~~073~~475.2738
PRINCIPAL - COLLECTIONS								TOTAL
	Scheduled Principal							~~230~~228,~~954~~436.1993
	Curtailments							45101,~~550~~788.0171
	Prepayments in Full							3,~~430~~705,~~172~~230.5928
	Repurchases/Substitutions							2263,~~299,396~~019.4846
	Liquidations							0.00
	Insurance Principal							0.00
	Other Additional Principal							0.00
	LESS: Delinquent Principal							(~~186~~191,~~127~~411.9182)
	LESS: Realized Losses							0.00
	PLUS: Recoveries							0.00
	PLUS: Substitution Shortfall Principal							0.00
	PLUS: Principal Loan Adjustments							0.00
	PLUS: Principal Advanced							~~186~~191,~~127~~411.9182
	TOTAL PRINCIPAL							64,~~006~~298,~~073~~475.2738
				Page 8 of 27				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A4
	Collateralized Asset-Backed Bonds
	Series 2004-A4
	Collection Account Report for November 26, 2004 Distribution
	Collection Account Report for December 27, 2004 Distribution
	Collection Account Report
PRINCIPAL - WITHDRAWALS								TOTAL
SPACE INTENTIONALLY LEFT BLANK
PRINCIPAL - OTHER ACCOUNTS								TOTAL
SPACE INTENTIONALLY LEFT BLANK
INTEREST - COLLECTIONS								TOTAL
	Scheduled Interest							1,~~207~~186,~~607~~393.1921
	Repurchases/Substitutions							121,~~332~~369.8489
	Liquidations							0.00
	Insurance Interest							0.00
	Other Additional Interest							0.00
	LESS: Prepayment Interest Shortfalls							(1,~~029~~672.0708)
	LESS: Delinquent Interest							(~~961~~980,~~088~~571.6943)
	LESS: Interest Realized Losses							0.00
	PLUS: Compensating Interest							1,~~029~~672.0708
	LESS: Civil Relief Act Shorfalls							0.00
	PLUS: Substiution Shortfall Interest							0.00
	PLUS: Interest Loan Adjustments							0.00
	LESS: Excess, Special Hazard, Fraud, & Bankruptcy Interest Losses							0.00
	Interest Advanced							~~916~~935,~~578~~167.0982
	TOTAL INTEREST							1,~~175~~142,~~429~~359.4349
				Page 9 of 27				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A4
	Collateralized Asset-Backed Bonds
	Series 2004-A4
	Collection Account Report for November 26, 2004 Distribution
	Collection Account Report for December 27, 2004 Distribution
	Collection Account Report
INTEREST - WITHDRAWALS								TOTAL
SPACE INTENTIONALLY LEFT BLANK
INTEREST - OTHER ACCOUNTS								TOTAL
	Prepayment Penalties							0.00
	TOTAL INTEREST OTHER ACCOUNTS							0.00
INTEREST - FEES								TOTAL
	Current Servicing Fees							129,~~147~~705.0884
	Trustee Fees							1,~~952~~902.3833
	TOTAL INTEREST FEES							1411,~~099~~608.4617
				Page 10 of 27				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A4
	Collateralized Asset-Backed Bonds
	Series 2004-A4
	Credit Enhancement Report for November 26, 2004 Distribution
	Credit Enhancement Report for December 27, 2004 Distribution
	Credit Enhancement Report
ACCOUNTS								TOTAL
SPACE INTENTIONALLY LEFT BLANK
INSURANCE								TOTAL
SPACE INTENTIONALLY LEFT BLANK
STRUCTURAL FEATURES								TOTAL
SPACE INTENTIONALLY LEFT BLANK
				Page 11 of 27				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A4
	Collateralized Asset-Backed Bonds
	Series 2004-A4
	Collateral Report for November 26, 2004 Distribution
	Collateral Report for December 27, 2004 Distribution
	Collateral Report
COLLATERAL								TOTAL
	Loan Count:
	Original							780
	Prior							~~710~~684
	Prefunding							-
	Scheduled Paid Offs							-
	Full Voluntary Prepayments							(1412)
	Repurchases							(121)
	Liquidations							-
	Current							~~684~~671
	Principal Balance:
	Original							254,900,538.58
	Prior							~~234~~228,~~285~~279,~~673~~599.2497
	Prefunding							-
	Scheduled Principal							(~~230~~228,~~954~~436.1993)
	Partial and Full Voluntary Prepayments							(3,~~475~~807,~~722~~018.6099)
	Repurchases							(2263,~~299,396~~019.4846)
	Liquidations							-
	Current							~~228~~223,~~279~~981,~~599~~124.9759
PREFUNDING								TOTAL
SPACE INTENTIONALLY LEFT BLANK
Current Prin Balance by Groups (in millions of dollars)					Total Current Principal Balance (in millions of dollars)
				Page 12 of 27				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A4
	Collateralized Asset-Backed Bonds
	Series 2004-A4
	Collateral Report for November 26, 2004 Distribution
	Collateral Report for December 27, 2004 Distribution
	Collateral Report
CHARACTERISTICS								TOTAL
	Weighted Average Coupon Original							6.278759%
	Weighted Average Coupon Prior							6.~~265934~~248474%
	Weighted Average Coupon Current							6.~~248474~~243728%
	Weighted Average Months to Maturity Original							352
	Weighted Average Months to Maturity Prior							~~349~~348
	Weighted Average Months to Maturity Current							~~348~~346
	Weighted Avg Remaining Amortization Term Original							352
	Weighted Avg Remaining Amortization Term Prior							~~348~~347
	Weighted Avg Remaining Amortization Term Current							~~347~~346
	Weighted Average Seasoning Original							7.32
	Weighted Average Seasoning Prior							1011.3338
	Weighted Average Seasoning Current							1112.3833
Note: Original information refers to deal issue.
WAC by Groups					Total WAC
WARAT by Groups					Total WARAT
Note: Dates correspond to distribution dates.
				Page 13 of 27				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A4
	Collateralized Asset-Backed Bonds
	Series 2004-A4
	Collateral Report for November 26, 2004 Distribution
	Collateral Report for December 27, 2004 Distribution
	Collateral Report
ARM CHARACTERISTICS								TOTAL
	Weighted Average Margin Original							0.000%
	Weighted Average Margin Prior							0.000%
	Weighted Average Margin Current							0.000%
	Weighted Average Max Rate Original							0.000%
	Weighted Average Max Rate Prior							0.000%
	Weighted Average Max Rate Current							0.000%
	Weighted Average Min Rate Original							0.000%
	Weighted Average Min Rate Prior							0.000%
	Weighted Average Min Rate Current							0.000%
	Weighted Average Cap Up Original							0.000%
	Weighted Average Cap Up Prior							0.000%
	Weighted Average Cap Up Current							0.000%
	Weighted Average Cap Down Original							0.000%
	Weighted Average Cap Down Prior							0.000%
	Weighted Average Cap Down Current							0.000%
Note: Original information refers to deal issue.
SERVICING FEES / ADVANCES								TOTAL
	Current Servicing Fees							129,~~147~~705.0884
	Delinquent Servicing Fees							4445,~~510~~403.6061
	TOTAL SERVICING FEES							5655,~~657~~109.6845
	Total Servicing Fees							5655,~~657~~109.6845
	Compensating Interest							(1,~~029~~672.0708)
	Delinquent Servicing Fees							(4445,~~510~~403.6061)
	COLLECTED SERVICING FEES							118,~~118~~033.0176
	Total Advanced Principal For Current Payment Date							~~186~~191,~~127~~411.9182
	Total Advanced Interest For Current Payment Date							~~916~~935,~~578~~167.0982
	TOTAL ADVANCES FOR CURRENT PERIOD							1,~~102~~126,~~706~~579.0064
ADDITIONAL COLLATERAL INFORMATION								TOTAL
	Prepayment Interest Shortfall (PPIS)							1,~~029~~672.0708
	Compensating Interest							(1,~~029~~672.0708)
	Net Prepayment Interest Shortfall (Net PPIS)							0.00
	Weighted Average Net Mortgage Rate							5.~~948276~~944033%
				Page 14 of 27				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A4
	Collateralized Asset-Backed Bonds
	Series 2004-A4
	Delinquency Report for November 26, 2004 Distribution
	Delinquency Report for December 27, 2004 Distribution
	Delinquency Report - Total
				<1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT		Balance		###########	24,~~378~~009,~~472~~859.6522	~~227~~397,~~431~~853.7912	~~411~~556,~~499~~707.6684	34,~~017~~964,~~404~~420.1018
		% Balance		7981.1559%	1.0479%	0.1018%	0.1825%	12.3222%
		# Loans		~~544~~543	915	21	12	1218
		% # Loans		7980.5392%	12.3224%	0.2915%	0.1530%	12.7568%
FORECLOSURE		Balance		-	-	-	-	-
		% Balance		0.00%	0.00%	0.00%	0.00%	0.00%
		# Loans		-	-	-	-	-
		% # Loans		0.00%	0.00%	0.00%	0.00%	0.00%
BANKRUPTCY		Balance		~~223~~222,~~237~~992.3460	-	-	136,~~553~~427.67	359,~~791~~420.0127
		% Balance		0.10%	0.00%	0.00%	0.06%	0.16%
		# Loans		1	-	-	1	2
		% # Loans		0.15%	0.00%	0.00%	0.15%	0.2930%
REO		Balance		-	-	-	-	-
		% Balance		0.00%	0.00%	0.00%	0.00%	0.00%
		# Loans		-	-	-	-	-
		% # Loans		0.00%	0.00%	0.00%	0.00%	0.00%
TOTAL		Balance		~~223~~222,~~237~~992.3460	24,~~378~~009,~~472~~859.6522	~~227~~397,~~431~~853.7912	~~548~~693,~~053~~135.3351	35,~~377~~323,~~195~~840.1145
		% Balance		0.10%	1.0479%	0.1018%	0.2431%	12.4838%
		# Loans		1	915	21	23	1420
		% # Loans		0.15%	12.3224%	0.2915%	0.2945%	2.0598%
Note: <1 Payment = 1-30days, 1 Payment = 31-60days, 2 Payments = 61-90days, 3+ Payments = 91+
								6 Months Moving Average
1 or 2 Payments Delinquent					3 or More Payments Delinquent
Total Foreclosure					Total Bankruptcy and REO
Note: Dates correspond to distribution dates.
				Page 15 of 27				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A4
	Collateralized Asset-Backed Bonds
	Series 2004-A4
	REO Report for November 26, 2004 Distribution
	REO Report for December 27, 2004 Distribution
	REO Report - Mortgage Loans that Become REO During Current Distribution
SUMMARY				LOAN GROUP
Total Loan Count = 0				Loan Group 1 = Fixed; REO Book Value = 000.00
Total Original Principal Balance = 000.00
Total Current Balance = 000.00
REO Book Value = 000.00
REO Book Value reported corresponds to total REO loans, including loans that become REO during current distribution.
Loan Number		Original	Stated		Current	State &
&		Principal	Principal	Paid to	Note	LTV at	Original	Origination
Loan Group		Balance	Balance	Date	Rate	Origination	Term	Date
SPACE INTENTIONALLY LEFT BLANK
				Page 16 of 27				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A4
	Collateralized Asset-Backed Bonds
	Series 2004-A4
	Prepayment Report for November 26, 2004 Distribution
	Prepayment Report for December 27, 2004 Distribution
	Prepayment Report - Voluntary Prepayments
VOLUNTARY PREPAYMENTS								TOTAL
	Current
	Number of Paid in Full Loans							1412
	Number of Repurchased Loans							121
	Total Number of Loans Prepaid in Full							2613
	Paid in Full Balance							3,~~430~~705,~~172~~230.5928
	Repurchased Loans Balance							2263,~~299,396~~019.4846
	Curtailments Amount							45101,~~550~~788.0171
	Total Prepayment Amount							54,~~775~~070,~~119~~038.0845
	Cumulative
	Number of Paid in Full Loans							5163
	Number of Repurchased Loans							4546
	Total Number of Loans Prepaid in Full							96109
	Paid in Full Balance							1418,~~451~~157,~~838~~068.5280
	Repurchased Loans Balance							11,~~016~~279,~~438~~458.5400
	Curtailments Amount							~~(56~~45,~~026~~762.~~36)~~35
	Total Prepayment Amount							2529,~~412~~482,~~250~~289.7015
SPACE INTENTIONALLY LEFT BLANK
Total Prepayments by Groups (in thousands of dollars)					Total Prepayments (in thousands of dollars)
				Page 17 of 27				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A4
	Collateralized Asset-Backed Bonds
	Series 2004-A4
	Prepayment Report for November 26, 2004 Distribution
	Prepayment Report for December 27, 2004 Distribution
	Prepayment Report - Voluntary Prepayments
VOLUNTARY PREPAYMENT RATES								TOTAL
	SMM							21.4778%
	3 Months Avg SMM							2.7487%
	12 Months Avg SMM
	Avg SMM Since Cut-off							2.0904%
	CPR							2519.9043%
	3 Months Avg CPR							2829.3751%
	12 Months Avg CPR
	Avg CPR Since Cut-off							2221.3587%
	PSA							~~1138~~788.1209%
	3 Months Avg PSA Approximation							~~1374~~1300.6137%
	12 Months Avg PSA Approximation
	Avg PSA Since Cut-off Approximation							~~1200~~1114.9584%
CPR by Groups					Total CPR
PSA by Groups					Total PSA
				Page 18 of 27				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A4
	Collateralized Asset-Backed Bonds
	Series 2004-A4
	Prepayment Report for November 26, 2004 Distribution
	Prepayment Report for December 27, 2004 Distribution
	Prepayment Report - Voluntary Prepayments
CPR Avg since Cut-Off by Groups					Total CPR Avg since Cut-Off
PSA Avg since Cut-Off by Groups					Total PSA Avg since Cut-Off
PREPAYMENT CALCULATION METHODOLOGY
Single Monthly Mortality (SMM): (Voluntary partial and full prepayments + Repurchases)/(Beg Principal Balance - Sched Principal)
Conditional Prepayment Rate (CPR): 1-((1-SMM)^12)
PSA Standard Prepayment Model: CPR/(0.02*min(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)
Average CPR over period between the nth month and mth month (AvgCPRn,m): 1-((1-AvgSMMn,m)^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)
Note: Prepayment rates are calculated since deal issue date and include partial and full voluntary prepayments and repurchases.
Dates correspond to distribution dates.
				Page 19 of 27				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A4
	Collateralized Asset-Backed Bonds
	Series 2004-A4
	Prepayment Detail Report for November 26, 2004 Distribution
	Prepayment Detail Report for December 27, 2004 Distribution
	Prepayment Detail Report - Loans Prepaid in Full During Current Distribution
SUMMARY						LOAN GROUP
Total Loan Count = 26						Loan Group 1 = Fixed
Total Loan Count = 13						Loan Group 1 = Fixed
Total Original Principal Balance = 5,781,562.00
Total Original Principal Balance = 4,020,700.00
Total Prepayment Amount = 5,729,569.07
Total Prepayment Amount = 3,968,249.74
Loan Number			Original			Current	State &	Type Prepayment
&		Loan	Principal	Prepayment	Prepayment	Note	LTV at	&	Origination
Loan Group		Status	Balance	Amount	Date	Rate	Origination	Original Term	Date
1972494 1			146,250.00	144,000.22	Nov-09-04	6.875%	NY - 73.13%	Paid Off - 360	Jan-06-03
1149152 1			472,000.00	457,231.14	Nov-24-04	6.250%	CA - 59.00%	Paid Off - 360	Jul-20-01
2024751 1			339,000.00	330,452.86	Oct-20-04	6.000%	CA - 52.56%	Paid Off - 360	Nov-27-02
1372016 1			370,000.00	356,801.08	Dec-01-04	6.000%	CA - 56.92%	Paid Off - 360	Dec-17-01
2152401 1			103,500.00	101,418.23	Nov-05-04	7.000%	FL - 90.00%	Paid Off - 360	Sep-03-02
1985654 1			360,000.00	351,107.46	Dec-07-04	6.000%	CA - 72.00%	Paid Off - 360	Oct-28-02
3157420 1			210,000.00	207,224.95	Nov-02-04	6.375%	NY - 62.69%	Paid Off - 360	Aug-26-03
3158401 1			127,000.00	126,032.90	Nov-23-04	7.250%	ID - 68.65%	Paid Off - 360	Jan-14-04
3157927 1			138,800.00	137,033.34	Oct-27-04	6.250%	NY - 69.96%	Paid Off - 360	Aug-16-03
3163297 1			449,250.00	445,840.39	Nov-23-04	5.625%	CA - 75.00%	Paid Off - 360	Mar-09-04
3158413 1			75,000.00	74,433.85	Oct-22-04	6.375%	CA - 52.82%	Paid Off - 360	Jan-20-04
3585174 1			392,100.00	390,433.95	Dec-02-04	6.875%	DC - 80.02%	Paid Off - 360	May-10-04
3159180 1			120,000.00	118,126.05	Nov-03-04	6.375%	RI - 45.28%	Paid Off - 360	May-09-03
3719365 1			258,000.00	256,472.29	Dec-08-04	6.500%	CA - 66.15%	Paid Off - 360	May-14-04
3585768 1			101,500.00	101,058.09	Oct-25-04	6.750%	CA - 70.00%	Paid Off - 360	May-12-04
3759228 1			130,000.00	129,474.02	Nov-16-04	7.125%	NJ - 58.82%	Paid Off - 360	May-26-04
3593733 1			400,000.00	398,127.80	Nov-03-04	6.375%	FL - 76.92%	Paid Off - 360	May-28-04
3796194 1			138,350.00	137,776.30	Nov-29-04	7.000%	FL - 94.99%	Paid Off - 360	May-28-04
3624556 1			425,000.00	423,109.65	Nov-10-04	6.375%	CA - 52.47%	Paid Off - 360	May-26-04
3838323 1			204,000.00	203,308.57	Dec-08-04	6.875%	FL - 64.76%	Paid Off - 360	Jun-08-04
3754233 1			168,000.00	167,286.17	Nov-01-04	6.875%	CA - 70.00%	Paid Off - 360	May-21-04
3890864 1			650,000.00	646,546.69	Dec-01-04	5.750%	CA - 66.33%	Paid Off - 360	Jun-09-04
3770517 1			455,943.00	452,571.77	Nov-01-04	6.000%	CA - 79.99%	Paid Off - 360	May-20-04
3891632 1			205,000.00	204,205.49	Dec-02-04	6.250%	CA - 40.20%	Paid Off - 360	Jun-09-04
3782841 1			400,000.00	398,537.44	Nov-15-04	6.625%	CA - 50.00%	Paid Off - 360	Jun-09-04
3163362 1			265,000.00	263,019.46	Nov-30-04	6.250%	MA - 48.18%	Repur/Subs - 360	Mar-18-04
3786994 1			378,400.00	376,792.17	Oct-29-04	6.875%	OH - 80.00%	Paid Off - 360	Apr-23-04
3155676 1			276,900.00	274,334.86	Oct-31-04	6.500%	FL - 75.00%	Repur/Subs - 360	Nov-18-02
3157216 1			263,000.00	260,732.66	Oct-31-04	6.875%	IL - 90.00%	Repur/Subs - 360	Nov-10-03
3157310 1			154,800.00	153,432.96	Oct-31-04	6.750%	FL - 90.00%	Repur/Subs - 360	Nov-24-03
3157759 1			260,000.00	256,025.16	Oct-31-04	6.250%	MA - 56.52%	Repur/Subs - 360	Dec-10-03
3157920 1			200,000.00	197,418.78	Oct-31-04	6.375%	NJ - 49.38%	Repur/Subs - 360	Nov-17-03
3159263 1			125,000.00	123,660.79	Oct-31-04	6.250%	MA - 15.63%	Repur/Subs - 360	Oct-18-03
3159348 1			126,500.00	125,522.10	Oct-31-04	6.250%	NH - 55.24%	Repur/Subs - 360	Jan-15-04
3565436 1			177,650.00	176,818.54	Oct-31-04	6.375%	CA - 86.66%	Repur/Subs - 360	May-21-04
3574408 1			200,000.00	197,762.88	Oct-31-04	6.375%	NY - 50.00%	Repur/Subs - 360	Apr-26-04
3613095 1			147,000.00	146,295.32	Oct-31-04	6.250%	CA - 46.89%	Repur/Subs - 360	Apr-26-04
3641615 1			234,319.00	233,117.91	Oct-31-04	6.375%	CA - 53.87%	Repur/Subs - 360	May-07-04
3652877 1			155,000.00	154,274.52	Oct-31-04	6.375%	CA - 55.36%	Repur/Subs - 360	Apr-23-04
					Page 20 of 27				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A4
	Collateralized Asset-Backed Bonds
	Series 2004-A4
	Realized Loss Report for November 26, 2004 Distribution
	Realized Loss Report for December 27, 2004 Distribution
	Realized Loss Report - Collateral
COLLATERAL REALIZED LOSSES								TOTAL
	Current
	Number of Loans Liquidated							-
	Collateral Realized Loss/(Gain) Amount							-
	Net Liquidation Proceeds							-
	Cumulative
	Number of Loans Liquidated							-
	Collateral Realized Loss/(Gain) Amount							-
	Net Liquidation Proceeds							-
	Note: Collateral Realized Loss Amount may include adjustments to loans liquidated in prior periods.
	Current Realized Losses							0.00
	Supplemental Losses On Prior Liquidated Loans (LESS Recoveries)							0.00
	Current Net Realized Losses (LESS Recoveries)							0.00
	Prior Cumulative Realized Loss							0.00
	Current Net Realized Losses (LESS Recoveries)							0.00
	Current Cumulative Realized Loss							0.00
	Current Special Hazard Loss Coverage Amount							2,~~603~~600,~~099~~466.1615
	Current Fraud Loss Coverage Amount							7,500,000.00
	Current Bankruptcy Loss Coverage Amount							150,000.00
	Class B-1 Write Down Amount							0.00
	Class B-2 Write Down Amount							0.00
	Class B-3 Write Down Amount							0.00
	Class B-4 Write Down Amount							0.00
	Class B-5 Write Down Amount							0.00
	Class B-6 Write Down Amount							0.00
							3 Months Moving Average
Collateral Loss Severity Approximation by Groups					Collateral Loss Severity Approximation
				Page 21 of 27				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A4
	Collateralized Asset-Backed Bonds
	Series 2004-A4
	Realized Loss Report for November 26, 2004 Distribution
	Realized Loss Report for December 27, 2004 Distribution
	Realized Loss Report - Collateral
DEFAULT SPEEDS								TOTAL
	MDR							0.00%
	3 Months Avg MDR							0.00%
	12 Months Avg MDR
	Avg MDR Since Cut-off							0.00%
	CDR							0.00%
	3 Months Avg CDR							0.00%
	12 Months Avg CDR
	Avg CDR Since Cut-off							0.00%
	SDA							0.00%
	3 Months Avg SDA Approximation							0.00%
	12 Months Avg SDA Approximation
	Avg SDA Since Cut-off Approximation							0.00%
	Loss Severity Approximation for Current Period
	3 Months Avg Loss Severity Approximation
	12 Months Avg Loss Severity Approximation
	Avg Loss Severity Approximation Since Cut-off
CDR by Groups					Total CDR
SDA by Groups					Total SDA
				Page 22 of 27				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A4
	Collateralized Asset-Backed Bonds
	Series 2004-A4
	Realized Loss Report for November 26, 2004 Distribution
	Realized Loss Report for December 27, 2004 Distribution
	Realized Loss Report - Collateral
CDR Avg since Cut-Off by Groups					Total CDR Avg since Cut-Off
SDA Avg since Cut-Off by Groups					Total SDA Avg since Cut-Off
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 23 of 27				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A4
	Collateralized Asset-Backed Bonds
	Series 2004-A4
	Realized Loss Detail Report for November 26, 2004 Distribution
	Realized Loss Detail Report for December 27, 2004 Distribution
	Realized Loss Detail Report - Loans Liquidated During Current Distribution
SUMMARY							LOAN GROUP
Total Loan Count Current Losses = 0
Total Loan Count Revisions = 0						Loan Group 1 = Fixed
Total Prior Principal Balance = 0.00
Total Current Realized Loss Amount = 0.00
Total Revisions Amount = 0.00
Total Realized Loss Amount = 0.00
Total Net Liquidation Proceeds = 0.00
Note: Total Realized Loss Amount may include adjustments to loans liquidated in prior periods.
Loan Number			Current	State &		Prior	Realized		Cumulative
&		Loan	Note	LTV at	Original	Principal	Loss/(Gain)	Realized	Realized
Loan Group		Status	Rate	Origination	Term	Balance	Revisions	Loss/(Gain)	Loss/(Gain)
SPACE INTENTIONALLY LEFT BLANK
					Page 24 of 27				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A4
	Collateralized Asset-Backed Bonds
	Series 2004-A4
	Triggers, Adj. Rate Cert. and Miscellaneous Report for November 26, 2004 Distribution
	Triggers, Adj. Rate Cert. and Miscellaneous Report for December 27, 2004 Distribution
	Triggers, Adj. Rate Cert. and Miscellaneous Report
TRIGGER EVENTS								TOTAL
	Has the Optional Termination Date been reached?							No
	Have the Sr. Prepay Step Down Cond been satisfied?							No
	Has the Sr. Credit Supp. Depletion Date been reached?							No
	Have all prepayment penalties expired?							No
	Has the Spec. Haz. Coverage Term Date been reached?							No
	Has the Fraud LossCoverage Term. Date been reached?							No
	Has the Bank LossCoverage Term. Date been reached?							No
ADJUSTABLE RATE CERTIFICATE INFORMATION								TOTAL
SPACE INTENTIONALLY LEFT BLANK
ADDITIONAL INFORMATION								TOTAL
	Current Senior Percentage							94.~~587969~~244842%
	Next Senior Percentage							94.~~337002~~241405%
	Current Subordinate Percentage							5.~~412031~~755158%
	Next Subordinate Percentage							5.~~662998~~758595%
	Current Senior Prepayment Percentage							100.000000%
	Next Projected Senior Prepayment Percentage							100.000000%
	Current Subordinated Prepayment Percentage							0.000000%
	Next Projected Subordinated Prepayment Percentage							0.000000%
				Page 25 of 27				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A4
	Collateralized Asset-Backed Bonds
	Series 2004-A4
	Other Related Information for November 26, 2004 Distribution
	Other Related Information for December 27, 2004 Distribution
	Other Related Information
ADDITIONAL INFORMATION								TOTAL
	Next Projected Pass-Through Rate for Class A-1							5.000000%
	Next Projected Pass-Through Rate for Class A-2							2.~~282500~~530630%
	Next Projected Pass-Through Rate for Class A-3							5.~~717500~~469370%
	Next Projected Pass-Through Rate for Class A-4							5.500000%
	Next Projected Pass-Through Rate for Class A-5							5.500000%
	Next Projected Pass-Through Rate for Class A-6							5.500000%
	Next Projected Pass-Through Rate for Class A-7							5.500000%
	Next Projected Pass-Through Rate for Class A-8							5.500000%
	Next Projected Pass-Through Rate for Class A-9							5.500000%
	Next Projected Pass-Through Rate for Class A-10							5.500000%
	Next Projected Pass-Through Rate for Class A-11							5.500000%
	Next Projected Pass-Through Rate for Class A-12							5.500000%
	Next Projected Pass-Through Rate for Class A-13							2.~~482500~~730630%
	Next Projected Pass-Through Rate for Class A-14							5.~~517500~~269370%
	Next Projected Pass-Through Rate for Class A-15							5.500000%
	Next Projected Pass-Through Rate for Class A-X							0.~~456659~~455647%
	Next Projected Pass-Through Rate for Class A-R							5.500000%
	Next Projected Pass-Through Rate for Class B-1							5.750000%
	Next Projected Pass-Through Rate for Class B-2							5.750000%
	Next Projected Pass-Through Rate for Class B-3							5.750000%
	Next Projected Pass-Through Rate for Class B-4							5.750000%
	Next Projected Pass-Through Rate for Class B-5							5.750000%
	Next Projected Pass-Through Rate for Class B-6							5.750000%
	Scheduled Principal
	1 Month Prior							0.00
	2 Months Prior							0.00
	3 Months Prior							0.00
	4 Months Prior							0.00
	5 Months Prior							0.00
	6 Months Prior							0.00
	7 Months Prior							0.00
	8 Months Prior							0.00
	9 Months Prior							0.00
	10 Months Prior							0.00
	11 Months Prior							0.00
	12 Months Prior							0.00
	Scheduled Principal on 60+ Day Delinquent Loans
	1 Month Prior							0.00
	2 Months Prior							0.00
	3 Months Prior							0.00
	4 Months Prior							0.00
	5 Months Prior							0.00
	6 Months Prior							0.00
	7 Months Prior							0.00
	8 Months Prior							0.00
	9 Months Prior							0.00
	10 Months Prior							0.00
	11 Months Prior							0.00
				Page 26 of 27				© COPYRIGHT 2004 Deutsche Bank
	IndyMac Residential Asset Securitization Trust 2004-A4
	Collateralized Asset-Backed Bonds
	Series 2004-A4
	Additional Certificate Report for November 26, 2004 Distribution
	Additional Certificate Report for December 27, 2004 Distribution
	Additional Certificate Report
SPACE INTENTIONALLY LEFT BLANK
	CLASS
				Page 27 of 27				© COPYRIGHT 2004 Deutsche Bank

Filing Compare · IndyMac Residential Asset Securitization Trust 2004-A4