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~~October 25, 2005 (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-A5 Mortgage Pass-Through Certificates, Series 2004-E) (Exact name of registrant as specified in charter) DELAWARE (State or Other Jurisdiction of Incorporation) 333-116470-04 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~~October 25, 2005. Signatures Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized. Deutsche Bank National Trust Company, in its capacity as Trustee under the Pooling and Servicing Agreement on behalf of Indymac MBS Inc, Registrant Date: ~~Aug~~Oct 2628, 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~~October 25, 2005.

IndyMac Residential Asset Securitization Trust 2004-A5

Collateralized Asset-Backed Bonds

August 25, 2005 Distribution

October 25, 2005 Distribution

Contents

TABLE OF CONTENTS

Page

Contents

Certificate Payment Report

Collection Account Report

Credit Enhancement Report

Collateral Report

Delinquency Report

REO Report

Prepayment Report

Prepayment Detail Report

10.

Realized Loss Report

11.

Realized Loss Detail Report

12.

Triggers, Adj. Rate Cert. and Miscellaneous Report

13.

Other Related Information

14.

Additional Certificate Report

Total Number of Pages

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 28, 2004

First Payment Date: July 26, 2004

Servicer(s):

IndyMac Bank Master Servicer

Distribution Date: August 25, 2005

Distribution Date: October 25, 2005

Underwriter(s):

Residential Funding Corporation Underwriter

Record Date: ~~July~~September 2930, 2005

Bear Stearns & Co. Underwriter

Page 1 of 23

IndyMac Residential Asset Securitization Trust 2004-A5

Collateralized Asset-Backed Bonds

REMIC Series 2004-A5

Certificate Payment Report for August 25, 2005 Distribution

Certificate Payment Report for October 25, 2005 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

190,270,000.00

~~154~~147,~~297~~117,~~780~~043.2659

~~707~~674,~~198~~286.1645

3,~~978~~383,~~721~~252.8796

4,~~685~~057,~~920~~539.0341

~~150~~143,~~319~~733,~~058~~790.3963

2,772,089.00

2,~~334~~308,~~079~~481.6316

1421,~~224~~162.0819

2,~~319~~287,~~855~~318.5597

A-X

67,~~881~~214.6896

A-R

100.00

B-1

4,548,000.00

4,~~485~~475,~~699~~755.1208

20,~~559~~513.4588

45,~~944~~024.5068

25,~~503~~538.9556

4,~~480~~470,~~754~~730.6240

B-2

2,021,500.00

1,~~993~~989,~~808~~388.4450

9,~~138~~118.2903

2,~~197~~233.7437

11,~~336~~351.0340

1,~~991~~987,~~610~~155.7013

B-3

606,500.00

~~598~~596,~~191~~865.8676

2,~~741~~735.7163

~~659~~670.3807

3,~~401~~405.0970

~~597~~596,~~532~~195.4869

B-4

808,500.00

~~797~~795,~~424~~656.7498

3,~~654~~646.8676

~~878~~893.9924

4,~~533~~540.8500

~~796~~794,~~545~~763.7574

B-5

606,400.00

~~598~~596,~~093~~767.2234

2,~~741~~735.2618

~~659~~669.2796

3,~~400~~405.5314

~~597~~596,~~433~~097.9538

B-6

505,500.66

~~498~~497,~~577~~471.0680

2,~~285~~280.1408

~~549~~558.5748

2,~~834~~838.7156

~~498~~496,~~027~~913.4932

100.00

Total

202,138,689.66

~~165~~158,~~603~~377,~~754~~530.3321

~~755~~722,~~200~~530.5597

43,~~002~~414,~~835~~464.4095

4,~~758~~136,~~035~~995.9592

~~161~~154,~~600~~963,~~918~~065.9326

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

(with Notional)

Principal

Total

Principal

Class

Starting

Ending

Method

Cusip

Balance

Interest

Principal

Distribution

Balance

(1)

(2)

(3)

(4)=(2)+(3)

(5)

A-1

0709/25/05

0810/24/05

F-30/360

45660NM93

190,270,000.00

~~810~~773.~~941190~~201469

3.~~716814~~543840

2017.~~910926~~781326

2421.~~627740~~325166

~~790~~755.~~030264~~420143

0709/25/05

0810/24/05

A-30/360

45660NN27

2,772,089.00

~~841~~832.~~993035~~758674

57.~~131177~~634023

~~836~~825.~~861858~~124651

A-X

0709/25/05

0810/24/05

A-30/360

45660NN35

105,962,502.00

~~806~~758.~~279763~~783357

0.~~064944~~068090

~~780~~743.~~539978~~991555

A-R

0709/25/05

0810/24/05

F-30/360

45660NN43

100.00

B-1

0709/25/05

0810/24/05

F-30/360

45660NN50

4,548,000.00

~~986~~984.~~301478~~115013

4.~~520547~~510528

1.~~087181~~104811

5.~~607729~~615339

~~985~~983.~~214296~~010202

B-2

0709/25/05

0810/24/05

F-30/360

45660NN68

2,021,500.00

~~986~~984.~~301479~~115014

4.~~520549~~510527

1.~~087183~~104808

5.~~607732~~615335

~~985~~983.~~214296~~010205

B-3

0709/25/05

0810/24/05

F-30/360

45660NN76

606,500.00

~~986~~984.~~301500~~115021

4.~~520544~~510519

1.~~087189~~104815

5.~~607733~~615334

~~985~~983.~~214312~~010206

B-4

0709/25/05

0810/24/05

F-30/360

45660NP74

808,500.00

~~986~~984.~~301472~~115003

4.~~520544~~510526

1.~~087186~~104811

5.~~607730~~615337

~~985~~983.~~214286~~010192

B-5

0709/25/05

0810/24/05

F-30/360

45660NP82

606,400.00

~~986~~984.~~301484~~115007

4.~~520547~~510521

1.~~087187~~104815

5.~~607734~~615336

~~985~~983.~~214297~~010191

B-6

0709/25/05

0810/24/05

F-30/360

45660NP90

505,500.66

~~986~~984.~~303480~~117014

4.~~520548~~510538

1.~~087180~~104806

5.~~607728~~615344

~~985~~983.~~216300~~012208

0709/25/05

0810/24/05

A-30/360

100.00

1,000.000000

Page 2 of 23

IndyMac Residential Asset Securitization Trust 2004-A5

Collateralized Asset-Backed Bonds

REMIC Series 2004-A5

Certificate Payment Report for August 25, 2005 Distribution

Certificate Payment Report for October 25, 2005 Distribution

Distribution in Dollars - to Date

Current

Original

Unscheduled

Scheduled

Total

Realized

Deferred

Principal

Class

Face Value

Interest

Principal

Distribution

Losses

Interest

Balance

(1)

(2)

(3)

(4)

(5)=(3)+(4)

(6)=(2)+(5)

(7)

(8)

(9)=(1)-(5)-(7)+(8)

A-1

190,270,000.00

1112,~~247~~610,~~073~~321.1292

3743,~~172~~396,~~378~~647.6818

23,~~778~~139,562.9319

3946,~~950~~536,~~941~~209.6137

5159,~~198~~146,~~014~~531.7329

~~150~~143,~~319~~733,~~058~~790.3963

2,772,089.00

~~420~~451,~~999~~770.9431

3132,~~233~~999.5172

~~452~~484,~~233~~770.4503

2,~~319~~287,~~855~~318.5597

A-X

~~119~~134,~~931~~582.9700

A-R

100.00

0.46

82.71

17.29

100.00

100.46

B-1

4,548,000.00

~~289~~330,~~846~~897.7744

6170,~~490~~964.7899

56,~~754~~304.6061

6777,~~245~~269.3860

~~357~~408,~~092~~167.1504

4,~~480~~470,~~754~~730.6240

B-2

2,021,500.00

~~128~~147,~~831~~077.4368

2731,~~331~~542.5161

2,~~557~~802.7926

2934,~~889~~344.3087

~~158~~181,~~720~~422.7355

1,~~991~~987,~~610~~155.7013

B-3

606,500.00

3844,~~652~~126.6193

89,~~200~~463.1155

~~767~~840.4176

810,~~967~~304.5231

4754,~~620~~431.1324

~~597~~596,~~532~~195.4869

B-4

808,500.00

5158,~~526~~823.1877

1012,~~931~~615.2447

1,~~023~~120.0179

1113,~~954~~736.2526

6372,~~480~~560.4303

~~796~~794,~~545~~763.7574

B-5

606,400.00

3844,~~646~~119.2466

89,~~198~~462.7600

~~767~~840.2962

810,~~966~~302.0562

4754,~~612~~422.2928

~~597~~596,~~433~~097.9538

B-6

505,500.66

3236,~~215~~778.8960

67,~~833~~886.7276

~~639~~700.4558

78,~~473~~587.1734

3945,~~689~~365.0694

~~498~~496,~~027~~913.4932

100.00

4243,~~168~~917.2232

100.00

Total

202,138,689.66

1113,~~988~~450,~~892~~645.8978

3743,~~716~~990,~~447~~435.4558

23,~~821~~185,~~323~~188.2882

4047,~~537~~175,~~770~~624.7340

5260,~~526~~626,~~663~~270.6218

~~161~~154,~~600~~963,~~918~~065.9326

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

(1)

(2)

(3)

(4)

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

(6)

(7)=(5)-(6)

A-1

5.50000%

~~154~~147,~~297~~117,~~780~~043.2659

~~707~~674,~~198~~286.1645

2,~~334~~308,~~079~~481.6316

A-X

0.~~09666~~10768%

8580,~~435~~402,~~421~~582.0596

67,~~881~~214.6896

A-R

5.50000%

B-1

5.50000%

4,~~485~~475,~~699~~755.1208

20,~~559~~513.4588

B-2

5.50000%

1,~~993~~989,~~808~~388.4450

9,~~138~~118.2903

B-3

5.50000%

~~598~~596,~~191~~865.8676

2,~~741~~735.7163

B-4

5.50000%

~~797~~795,~~424~~656.7498

3,~~654~~646.8676

B-5

5.50000%

~~598~~596,~~093~~767.2234

2,~~741~~735.2618

B-6

5.50000%

~~498~~497,~~577~~471.0680

2,~~285~~280.1408

100.00

Total

~~251~~238,~~039~~780,~~175~~113.3817

~~755~~722,~~200~~530.5597

Page 3 of 23

IndyMac Residential Asset Securitization Trust 2004-A5

Collateralized Asset-Backed Bonds

Series 2004-A5

Collection Account Report for August 25, 2005 Distribution

Collection Account Report for October 25, 2005 Distribution

Collection Account Report

SUMMARY

TOTAL

Principal Collections

43,~~002~~414,~~835~~464.3995

Principal Withdrawals

0.00

Principal Other Accounts

0.00

TOTAL PRINCIPAL

43,~~002~~414,~~835~~464.3995

Interest Collections

~~766~~731,~~214~~619.1063

Interest Withdrawals

(119,~~013~~088.5465)

Interest Other Accounts

0.00

TOTAL INTEREST

~~755~~722,~~200~~530.5698

TOTAL AVAILABLE FUNDS TO BONDHOLDERS

4,~~758~~136,~~035~~995.9593

Interest Payable to Bondholders

~~755~~722,~~200~~530.5698

Principal Payment Amount Payable to Bondholders

43,~~002~~414,~~835~~464.3995

PRINCIPAL - COLLECTIONS

TOTAL

Scheduled Principal

~~185~~180,~~417~~674.7630

Curtailments

5394,~~631~~409.4860

Prepayments in Full

3,~~763~~139,~~786~~381.1505

Repurchases/Substitutions

0.00

Liquidations

0.00

Insurance Principal

0.00

Other Additional Principal

0.00

LESS: Delinquent Principal

(~~146~~145,~~154~~746.9587)

LESS: Realized Losses

0.00

PLUS: Recoveries

0.00

PLUS: Substitution Shortfall Principal

0.00

PLUS: Principal Loan Adjustments

0.00

PLUS: Principal Advanced

~~146~~145,~~154~~746.9587

TOTAL PRINCIPAL

43,~~002~~414,~~835~~464.3995

Page 4 of 23

IndyMac Residential Asset Securitization Trust 2004-A5

Collateralized Asset-Backed Bonds

Series 2004-A5

Collection Account Report for August 25, 2005 Distribution

Collection Account Report for October 25, 2005 Distribution

Collection Account Report

PRINCIPAL - WITHDRAWALS

TOTAL

SPACE INTENTIONALLY LEFT BLANK

PRINCIPAL - OTHER ACCOUNTS

TOTAL

SPACE INTENTIONALLY LEFT BLANK

INTEREST - COLLECTIONS

TOTAL

Scheduled Interest

~~796~~761,~~865~~536.0924

Repurchases/Substitutions

0.00

Liquidations

0.00

Insurance Interest

0.00

Other Additional Interest

0.00

LESS: Prepayment Interest Shortfalls

(1,~~738~~966.2662)

LESS: Delinquent Interest

(~~616~~603,~~016~~099.3080)

LESS: Interest Realized Losses

0.00

PLUS: Compensating Interest

1,~~738~~966.2662

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

~~585~~573,~~365~~183.3119

TOTAL INTEREST

~~766~~731,~~214~~619.1063

Page 5 of 23

IndyMac Residential Asset Securitization Trust 2004-A5

Collateralized Asset-Backed Bonds

Series 2004-A5

Collection Account Report for August 25, 2005 Distribution

Collection Account Report for October 25, 2005 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

87,~~833~~768.5184

California Tax

~~800~~0.00

Trustee Fees

1,~~380~~319.0381

TOTAL INTEREST FEES

119,~~013~~088.5465

Page 6 of 23

IndyMac Residential Asset Securitization Trust 2004-A5

Collateralized Asset-Backed Bonds

Series 2004-A5

Credit Enhancement Report for August 25, 2005 Distribution

Credit Enhancement Report for October 25, 2005 Distribution

Credit Enhancement Report

ACCOUNTS

TOTAL

SPACE INTENTIONALLY LEFT BLANK

INSURANCE

TOTAL

SPACE INTENTIONALLY LEFT BLANK

STRUCTURAL FEATURES

TOTAL

SPACE INTENTIONALLY LEFT BLANK

Page 7 of 23

IndyMac Residential Asset Securitization Trust 2004-A5

Collateralized Asset-Backed Bonds

Series 2004-A5

Collateral Report for August 25, 2005 Distribution

Collateral Report for October 25, 2005 Distribution

Collateral Report

COLLATERAL

TOTAL

Loan Count:

Original

991

Prior

~~830~~798

Prefunding

Scheduled Paid Offs

Full Voluntary Prepayments

(1716)

Repurchases

Liquidations

Current

~~813~~782

Principal Balance:

Original

202,138,590.15

Prior

~~165~~158,~~603~~377,~~653~~429.7968

Prefunding

Scheduled Principal

(~~185~~180,~~417~~674.7630)

Partial and Full Voluntary Prepayments

(3,~~817~~233,~~417~~790.6365)

Repurchases

Liquidations

Current

~~161~~154,~~600~~962,~~818~~964.4073

PREFUNDING

TOTAL

SPACE INTENTIONALLY LEFT BLANK

Current Prin Balance by Groups (in millions of dollars)

Total Current Principal Balance (in millions of dollars)

Page 8 of 23

IndyMac Residential Asset Securitization Trust 2004-A5

Collateralized Asset-Backed Bonds

Series 2004-A5

Collateral Report for August 25, 2005 Distribution

Collateral Report for October 25, 2005 Distribution

Collateral Report

CHARACTERISTICS

TOTAL

Weighted Average Coupon Original

5.776550%

Weighted Average Coupon Prior

5.~~774898~~772082%

Weighted Average Coupon Current

5.~~774257~~770036%

Weighted Average Months to Maturity Original

357

Weighted Average Months to Maturity Prior

~~343~~341

Weighted Average Months to Maturity Current

~~342~~340

Weighted Avg Remaining Amortization Term Original

356

Weighted Avg Remaining Amortization Term Prior

~~343~~340

Weighted Avg Remaining Amortization Term Current

~~342~~339

Weighted Average Seasoning Original

2.54

Weighted Average Seasoning Prior

1416.5759

Weighted Average Seasoning Current

1517.5859

Note: Original information refers to deal issue.

WAC by Groups

Total WAC

WARAT by Groups

Total WARAT

Note: Dates correspond to distribution dates.

Page 9 of 23

IndyMac Residential Asset Securitization Trust 2004-A5

Collateralized Asset-Backed Bonds

Series 2004-A5

Collateral Report for August 25, 2005 Distribution

Collateral Report for October 25, 2005 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

87,~~833~~768.5184

Delinquent Servicing Fees

3029,~~650~~916.9961

TOTAL SERVICING FEES

3937,~~484~~685.5045

Total Servicing Fees

3937,~~484~~685.5045

Compensating Interest

(1,~~738~~966.2662)

Delinquent Servicing Fees

(3029,~~650~~916.9961)

COLLECTED SERVICING FEES

75,~~095~~802.2522

Total Advanced Principal For Current Payment Date

~~146~~145,~~154~~746.9587

Total Advanced Interest For Current Payment Date

~~585~~573,~~365~~183.3119

TOTAL ADVANCES FOR CURRENT PERIOD

~~731~~718,~~520~~930.2606

ADDITIONAL COLLATERAL INFORMATION

TOTAL

Prepayment Interest Shortfall (PPIS)

1,~~738~~966.2662

Compensating Interest

(1,~~738~~966.2662)

Net Prepayment Interest Shortfall (Net PPIS)

0.00

Weighted Average Net Mortgage Rate

5.~~478144~~474500%

Page 10 of 23

IndyMac Residential Asset Securitization Trust 2004-A5

Collateralized Asset-Backed Bonds

Series 2004-A5

Delinquency Report for August 25, 2005 Distribution

Delinquency Report for October 25, 2005 Distribution

Delinquency Report - Total

<1 PAYMENT

1 PAYMENT

2 PAYMENTS

3+ PAYMENTS

TOTAL

DELINQUENT

Balance

###########

42,~~202~~405,~~797~~552.9996

~~216~~531,~~517~~014.7614

~~153~~444,~~647~~312.4434

43,~~572~~380,~~963~~879.1944

% Balance

7577.7199%

21.6055%

0.1334%

0.1029%

2.8318%

# Loans

~~615~~611

2212

2416

% # Loans

7578.6513%

21.7153%

0.1226%

2.9505%

FORECLOSURE

Balance

~~290~~289,~~551~~890.1190

% Balance

0.00%

0.1819%

# Loans

% # Loans

0.00%

0.1213%

BANKRUPTCY

Balance

~~400~~629,~~067~~999.1677

% Balance

0.2541%

0.00%

0.2541%

# Loans

% # Loans

0.2538%

0.00%

0.2538%

REO

Balance

130,~~942~~656.9586

% Balance

0.00%

0.08%

# Loans

% # Loans

0.00%

0.1213%

TOTAL

Balance

~~400~~629,~~067~~999.1677

42,~~202~~405,~~797~~552.9996

~~216~~531,~~517~~014.7614

~~575~~864,~~141~~860.5010

54,~~394~~431,~~524~~426.4197

% Balance

0.2541%

21.6055%

0.1334%

0.3656%

32.3486%

# Loans

2212

2821

% # Loans

0.2538%

21.7153%

0.1226%

0.3751%

32.4469%

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 11 of 23

IndyMac Residential Asset Securitization Trust 2004-A5

Collateralized Asset-Backed Bonds

Series 2004-A5

REO Report for August 25, 2005 Distribution

REO Report for October 25, 2005 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 = Not Available

Total Original Principal Balance = 000.00

Total Current Balance = 000.00

REO Book Value = Not Available

REO Book Value reported corresponds to total REO loans, including loans that become REO during current distribution.

Loan Number

Original

Stated

Current

State &

Principal

Paid to

Note

LTV at

Original

Origination

Loan Group

Balance

Date

Rate

Origination

Term

Date

SPACE INTENTIONALLY LEFT BLANK

Page 12 of 23

IndyMac Residential Asset Securitization Trust 2004-A5

Collateralized Asset-Backed Bonds

Series 2004-A5

Prepayment Report for August 25, 2005 Distribution

Prepayment Report for October 25, 2005 Distribution

Prepayment Report - Voluntary Prepayments

VOLUNTARY PREPAYMENTS

TOTAL

Current

Number of Paid in Full Loans

1716

Number of Repurchased Loans

Total Number of Loans Prepaid in Full

1716

Paid in Full Balance

3,~~763~~139,~~786~~381.1505

Repurchased Loans Balance

Curtailments Amount

5394,~~631~~409.4860

Total Prepayment Amount

3,~~817~~233,~~417~~790.6365

Cumulative

Number of Paid in Full Loans

~~178~~209

Number of Repurchased Loans

Total Number of Loans Prepaid in Full

~~178~~209

Paid in Full Balance

3743,~~364~~502,~~115~~814.3604

Repurchased Loans Balance

Curtailments Amount

~~352~~487,~~333~~622.0853

Total Prepayment Amount

3743,~~716~~990,~~448~~436.4457

SPACE INTENTIONALLY LEFT BLANK

Total Prepayments by Groups (in thousands of dollars)

Total Prepayments (in thousands of dollars)

Page 13 of 23

IndyMac Residential Asset Securitization Trust 2004-A5

Collateralized Asset-Backed Bonds

Series 2004-A5

Prepayment Report for August 25, 2005 Distribution

Prepayment Report for October 25, 2005 Distribution

Prepayment Report - Voluntary Prepayments

VOLUNTARY PREPAYMENT RATES

TOTAL

SMM

2.3104%

3 Months Avg SMM

2.2708%

12 Months Avg SMM

1.6484%

Avg SMM Since Cut-off

1.4854%

CPR

2421.4395%

3 Months Avg CPR

2422.1028%

12 Months Avg CPR

1819.0494%

Avg CPR Since Cut-off

1617.3800%

PSA

~~784~~624.2202%

3 Months Avg PSA Approximation

~~826~~671.9466%

12 Months Avg PSA Approximation

~~897~~826.7891%

Avg PSA Since Cut-off Approximation

~~905~~845.3844%

CPR by Groups

Total CPR

PSA by Groups

Total PSA

Page 14 of 23

IndyMac Residential Asset Securitization Trust 2004-A5

Collateralized Asset-Backed Bonds

Series 2004-A5

Prepayment Report for August 25, 2005 Distribution

Prepayment Report for October 25, 2005 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 15 of 23

IndyMac Residential Asset Securitization Trust 2004-A5

Collateralized Asset-Backed Bonds

Series 2004-A5

Prepayment Detail Report for August 25, 2005 Distribution

Prepayment Detail Report for October 25, 2005 Distribution

Prepayment Detail Report - Loans Prepaid in Full During Current Distribution

SUMMARY

LOAN GROUP

Total Loan Count = 17

Loan Group 1 = Fixed

Total Loan Count = 16

Loan Group 1 = Fixed

Total Original Principal Balance = 3,819,542.00

Total Original Principal Balance = 3,197,246.00

Total Prepayment Amount = 3,763,786.15

Total Prepayment Amount = 3,139,381.05

Loan Number

Original

Current

State &

Type Prepayment

Loan

Principal

Prepayment

Note

LTV at

Origination

Loan Group

Status

Balance

Amount

Date

Rate

Origination

Original Term

Date

3161319 1

333,700.00

333,685.23

Jul-18-05

5.750%

CA - 78.52%

Paid Off - 360

Mar-03-04

3162028 1

319,500.00

312,565.07

Oct-04-05

5.875%

CT - 90.00%

Paid Off - 360

Jan-15-04

3531824 1

248,000.00

244,172.94

Jul-28-05

5.625%

CA - 80.00%

Paid Off - 360

Apr-12-04

3162786 1

295,000.00

289,681.69

Sep-28-05

5.875%

CA - 31.05%

Paid Off - 360

Mar-25-04

3540096 1

200,000.00

196,634.30

Jul-22-05

5.750%

CA - 64.94%

Paid Off - 360

Apr-28-04

3503240 1

325,000.00

319,005.09

Sep-29-05

5.750%

CA - 53.37%

Paid Off - 360

Apr-26-04

3552270 1

200,000.00

196,803.54

Jul-25-05

6.000%

CA - 68.26%

Paid Off - 360

Apr-09-04

3594104 1

115,000.00

112,926.74

Sep-29-05

5.875%

NC - 45.63%

Paid Off - 360

Apr-29-04

3605833 1

208,000.00

204,709.84

Aug-05-05

5.875%

PA - 77.04%

Paid Off - 360

Apr-30-04

3595971 1

230,000.00

225,659.47

Sep-22-05

5.625%

CA - 60.53%

Paid Off - 360

Apr-08-04

3617589 1

308,000.00

302,485.65

Aug-04-05

5.875%

CA - 80.00%

Paid Off - 360

Apr-16-04

3603428 1

124,720.00

122,312.15

Sep-23-05

5.500%

LA - 80.00%

Paid Off - 360

Mar-31-04

3617670 1

200,500.00

197,545.31

Aug-12-05

5.875%

CA - 70.35%

Paid Off - 360

Apr-15-04

3632156 1

103,000.00

101,174.81

Oct-03-05

5.625%

NV - 65.19%

Paid Off - 360

Apr-21-04

3622726 1

145,497.00

143,265.09

Jul-25-05

5.875%

CA - 66.14%

Paid Off - 360

Apr-30-04

3634347 1

225,000.00

221,191.74

Oct-13-05

5.875%

CA - 57.40%

Paid Off - 360

Apr-15-04

3633569 1

156,983.00

154,560.54

Aug-05-05

5.625%

NC - 84.86%

Paid Off - 360

May-20-04

3642811 1

187,500.00

184,196.66

Oct-04-05

5.750%

CA - 75.00%

Paid Off - 360

May-26-04

3639643 1

149,003.00

146,857.46

Aug-02-05

6.000%

AZ - 62.08%

Paid Off - 360

Apr-30-04

3643648 1

42,501.00

41,680.41

Sep-27-05

5.500%

NJ - 70.84%

Paid Off - 360

Apr-21-04

3670413 1

284,000.00

279,910.68

Aug-05-05

6.000%

MD - 80.00%

Paid Off - 360

Apr-14-04

3648442 1

260,000.00

255,492.02

Sep-27-05

5.750%

CA - 80.00%

Paid Off - 360

Apr-27-04

3678155 1

156,720.00

154,463.31

Jul-22-05

6.000%

CA - 80.00%

Paid Off - 360

Apr-23-04

3664290 1

242,000.00

237,891.82

Sep-20-05

5.875%

CA - 78.06%

Paid Off - 360

Apr-27-04

3684472 1

259,000.00

255,175.29

Jul-27-05

5.875%

CA - 77.31%

Paid Off - 360

Apr-30-04

3678162 1

134,425.00

132,200.54

Sep-23-05

6.000%

FL - 95.00%

Paid Off - 360

May-11-04

3702934 1

154,000.00

150,764.95

Aug-02-05

5.875%

FL - 69.37%

Paid Off - 360

Jun-01-04

3730532 1

260,000.00

255,788.69

Sep-22-05

5.750%

CT - 80.00%

Paid Off - 360

May-25-04

3718983 1

351,000.00

345,511.61

Aug-05-05

6.000%

CA - 90.00%

Paid Off - 360

Apr-29-04

3786181 1

88,000.00

86,544.42

Sep-28-05

6.000%

MI - 58.67%

Paid Off - 360

Apr-05-04

3755121 1

213,139.00

210,296.32

Aug-01-05

6.000%

OR - 65.99%

Paid Off - 360

Jun-01-04

3786225 1

245,600.00

241,069.73

Sep-28-05

5.750%

MN - 80.00%

Paid Off - 360

Mar-30-04

3786223 1

252,000.00

246,944.09

Aug-03-05

5.750%

FL - 80.00%

Paid Off - 360

Mar-31-04

Page 16 of 23

IndyMac Residential Asset Securitization Trust 2004-A5

Collateralized Asset-Backed Bonds

Series 2004-A5

Realized Loss Report for August 25, 2005 Distribution

Realized Loss Report for October 25, 2005 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

1,~~656~~583,~~036~~774.5430

Current Fraud Loss Coverage Amount

2,021,385.00

Current Bankruptcy Loss Coverage Amount

100,000.00

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 17 of 23

IndyMac Residential Asset Securitization Trust 2004-A5

Collateralized Asset-Backed Bonds

Series 2004-A5

Realized Loss Report for August 25, 2005 Distribution

Realized Loss Report for October 25, 2005 Distribution

Realized Loss Report - Collateral

DEFAULT SPEEDS

TOTAL

MDR

0.00%

3 Months Avg MDR

0.00%

12 Months Avg MDR

0.00%

Avg MDR Since Cut-off

0.00%

CDR

0.00%

3 Months Avg CDR

0.00%

12 Months Avg CDR

0.00%

Avg CDR Since Cut-off

0.00%

SDA

0.00%

3 Months Avg SDA Approximation

0.00%

12 Months Avg SDA Approximation

0.00%

Avg SDA Since Cut-off Approximation

0.00%

Loss Severity Approximation for Current Period

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 18 of 23

IndyMac Residential Asset Securitization Trust 2004-A5

Collateralized Asset-Backed Bonds

Series 2004-A5

Realized Loss Report for August 25, 2005 Distribution

Realized Loss Report for October 25, 2005 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 19 of 23

IndyMac Residential Asset Securitization Trust 2004-A5

Collateralized Asset-Backed Bonds

Series 2004-A5

Realized Loss Detail Report for August 25, 2005 Distribution

Realized Loss Detail Report for October 25, 2005 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

Loan Group

Status

Rate

Origination

Term

Balance

Revisions

Loss/(Gain)

SPACE INTENTIONALLY LEFT BLANK

Page 20 of 23

IndyMac Residential Asset Securitization Trust 2004-A5

Collateralized Asset-Backed Bonds

Series 2004-A5

Triggers, Adj. Rate Cert. and Miscellaneous Report for August 25, 2005 Distribution

Triggers, Adj. Rate Cert. and Miscellaneous Report for October 25, 2005 Distribution

Triggers, Adj. Rate Cert. and Miscellaneous Report

TRIGGER EVENTS

TOTAL

Has the Optional Termination Date been reached?

Have the Sr. Prepay Step Down Cond been satisfied?

Has the Sr. Credit Supp. Depletion Date been reached?

Have all prepayment penalties expired?

Has the Spec. Haz. Coverage Term Date been reached?

Has the Fraud LossCoverage Term. Date been reached?

Has the Bank LossCoverage Term. Date been reached?

ADJUSTABLE RATE CERTIFICATE INFORMATION

TOTAL

SPACE INTENTIONALLY LEFT BLANK

ADDITIONAL INFORMATION

TOTAL

Current Senior Percentage

94.~~582312~~347680%

Next Senior Percentage

94.~~373465~~143172%

Current Subordinate Percentage

5.~~417688~~652320%

Next Subordinate Percentage

5.~~626535~~856828%

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 21 of 23

IndyMac Residential Asset Securitization Trust 2004-A5

Collateralized Asset-Backed Bonds

Series 2004-A5

Other Related Information for August 25, 2005 Distribution

Other Related Information for October 25, 2005 Distribution

Other Related Information

ADDITIONAL INFORMATION

TOTAL

Next Projected pass through rate for Class A-1

5.500000%

Next Projected pass through rate for Class A-X

0.~~107874~~108432%

Next Projected pass through rate for Class B-1

5.500000%

Next Projected pass through rate for Class B-2

5.500000%

Next Projected pass through rate for Class B-3

5.500000%

Next Projected pass through rate for Class B-4

5.500000%

Next Projected pass through rate for Class B-5

5.500000%

Next Projected pass through rate for Class B-6

5.500000%

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 22 of 23

IndyMac Residential Asset Securitization Trust 2004-A5

Collateralized Asset-Backed Bonds

Series 2004-A5

Additional Certificate Report for August 25, 2005 Distribution

Additional Certificate Report for October 25, 2005 Distribution

Additional Certificate Report

CLASS

Net PPIS & Relief Act Shortfall Allocation

Unpaid Interest Amount Due

Unpaid Interest Paid

Remaining Unpaid Interest Amount

A-1

0.00

A-X

0.00

A-R

0.00

B-1

0.00

B-2

0.00

B-3

0.00

B-4

0.00

B-5

0.00

B-6

0.00

Page 23 of 23

Filing Compare · IndyMac RAST 2004-R2