IndyMac INDA Mortgage Loan Trust 2007-AR8

Mortgage Pass-Through Certificates

December 26, 2007 Distribution

External Parties

Table of Contents

Page

Seller

1. Certificate Payment Report

IndyMac Bank, F.S.B.

2. Collection Account Report

3. Credit Enhancement Report

Servicer(s)

4. Collateral Report

IndyMac Bank, F.S.B.

5. Delinquency Report

6. REO Report

Underwriter(s)

7. Foreclosure Report

Deutsche Bank Securities

8. Prepayment Report

9. Prepayment Detail Report

10. Realized Loss Report

11. Realized Loss Detail Report

12. Triggers and Adj. Cert. Report

13. Other Related Information

Total Number of Pages

Dates

Contacts

Cut-Off Date:

November 01, 2007

Jennifer Hermansader

Close Date:

November 29, 2007

Administrator

First Distribution Date:

December 26, 2007

(714) 247-6258

Jennifer.Vandyne@db.com

Address:

Distribution Date:

December 26, 2007

1761 East St. Andrew Place, Santa Ana, CA 92705

Record Date:

November 30, 2007

Factor Information:

(800) 735-7777

December 24, 2007

Main Phone Number:

(714) 247-6000

Determination Date:

December 17, 2007

https://tss.sfs.db.com/investpublic

Page 1 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2007 Distribution

Certificate Payment Report
Current Period Distribution - REMIC III
			Prior						Current
			Prior

	Class	Original	Principal			Total	Realized	Deferred	Principal

Class	Type	Face Value	Balance	Interest	Principal	Distribution	Loss	Interest	Balance
			(1)	(2)	(3)	(4)=(2)+(3)	(5)	(6)	(7)=(1)-(3)-(5)+(6)
A-1	SR	518,092,000.00	518,092,000.00	2,043,387.22	6,212,288.45	8,255,675.67	0.00	0.00	511,879,711.55
A-1	SR	518,092,000.00	518,092,000.00	2,043,387.22	6,212,288.45	8,255,675.67	0.00	0.00	511,879,711.55
1-A-2	SR	75,940,000.00	75,940,000.00	397,904.75	727,267.32	1,125,172.07	0.00	0.00	75,212,732.68
2-A-2	SR	29,073,000.00	29,073,000.00	156,724.45	1,062,699.43	1,219,423.88	0.00	0.00	28,010,300.57
3-A-2	SR	56,243,000.00	56,243,000.00	297,965.25	143,632.96	441,598.21	0.00	0.00	56,099,367.04
A-R	SR/RES	100.00	100.00	0.52	100.00	100.52	0.00	0.00	0.00
B-1	SUB	14,660,000.00	14,660,000.00	77,510.40	1,164.27	78,674.67	0.00	0.00	14,658,835.73
B-2	SUB	8,223,000.00	8,223,000.00	43,476.67	653.05	44,129.72	0.00	0.00	8,222,346.95
B-3	SUB	2,861,000.00	2,861,000.00	15,126.69	227.21	15,353.90	0.00	0.00	2,860,772.79
B-4	NOF/SUB	5,721,000.00	5,721,000.00	30,248.09	454.35	30,702.44	0.00	0.00	5,720,545.65
B-5	NOF/SUB	2,503,000.00	2,503,000.00	13,233.87	198.78	13,432.65	0.00	0.00	2,502,801.22
B-6	NOF/SUB	1,787,235.00	1,787,235.00	9,449.48	142.10	9,591.58	0.00	0.00	1,787,092.90
L	NOF	0.00	0.00	1,595.73	0.00	1,595.73	0.00	0.00	0.00
P-1	NOF	100.00	100.00	0.00	0.00	0.00	0.00	0.00	100.00
P-2	NOF	100.00	100.00	0.00	0.00	0.00	0.00	0.00	100.00


Total		715,103,535.00	715,103,535.00	3,086,623.12	8,148,827.92	11,235,451.04	0.00	0.00	706,954,707.08
Total




Interest Accrual Detail Current Period Factor Information per $1,000 of Original Face Value
					Orig. Principal	Prior				Current
					Orig. Principal	Prior				Current
	Period	Period			(with Notional)	Principal			Total	Principal
Class	Starting	Ending	Method	Cusip	Balance	Balance	Interest	Principal	Distribution	Balance
			Method
					(1)	(1)	(2)	(3)	(4)=(2)+(3)	(5)

A-1	11/29/07	12/25/07	A-Act/360	45671AAA8	518,092,000.00	1,000.000000	3.944062	11.990705	15.934768	988.009295
A-1	11/29/07	12/25/07	A-Act/360	45671AAA8	518,092,000.00	1,000.000000	3.944062	11.990705	15.934768	988.009295
1-A-2	11/01/07	11/30/07	A-30/360	45671AAB6	75,940,000.00	1,000.000000	5.239725	9.576868	14.816593	990.423132
2-A-2	11/01/07	11/30/07	A-30/360	45671AAC4	29,073,000.00	1,000.000000	5.390722	36.552796	41.943517	963.447204
3-A-2	11/01/07	11/30/07	A-30/360	45671AAD2	56,243,000.00	1,000.000000	5.297819	2.553793	7.851612	997.446207
A-R	11/01/07	11/30/07	A-30/360	45671AAE0	100.00	1,000.000000	5.200000	1,000.000000	1,005.200000	0.000000
B-1	11/01/07	11/30/07	A-30/360	45671AAF7	14,660,000.00	1,000.000000	5.287203	0.079418	5.366621	999.920582
B-2	11/01/07	11/30/07	A-30/360	45671AAG5	8,223,000.00	1,000.000000	5.287203	0.079417	5.366620	999.920583
B-3	11/01/07	11/30/07	A-30/360	45671AAH3	2,861,000.00	1,000.000000	5.287204	0.079416	5.366620	999.920584
B-4	11/01/07	11/30/07	A-30/360	45671AAM2	5,721,000.00	1,000.000000	5.287203	0.079418	5.366621	999.920582
B-5	11/01/07	11/30/07	A-30/360	45671AAN0	2,503,000.00	1,000.000000	5.287203	0.079417	5.366620	999.920583
B-6	11/01/07	11/30/07	A-30/360	45671AAP5	1,787,235.00	1,000.000000	5.287206	0.079508	5.366715	999.920492
L		45671AAL4	0.00	0.000000	0.000000	0.000000	0.000000	0.000000
P-1		45671AAJ9	100.00	1,000.000000	0.000000	0.000000	0.000000	1,000.000000
P-2		45671AAK6	100.00	1,000.000000	0.000000	0.000000	0.000000	1,000.000000




Page 2 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2007 Distribution


Distribution to Date - REMIC III
									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)
A-1	518,092,000.00	2,043,387.22	0.00	0.00	6,212,288.45	8,255,675.67	0.00	0.00	511,879,711.55
1-A-2	75,940,000.00	397,904.75	722,198.79	5,068.53	727,267.32	1,125,172.07	0.00	0.00	75,212,732.68
2-A-2	29,073,000.00	156,724.45	1,055,293.18	7,406.25	1,062,699.43	1,219,423.88	0.00	0.00	28,010,300.57
3-A-2	56,243,000.00	297,965.25	142,631.94	1,001.02	143,632.96	441,598.21	0.00	0.00	56,099,367.04
A-R	100.00	0.52	99.30	0.70	100.00	100.52	0.00	0.00	0.00
B-1	14,660,000.00	77,510.40	1,156.16	8.11	1,164.27	78,674.67	0.00	0.00	14,658,835.73
B-2	8,223,000.00	43,476.67	648.50	4.55	653.05	44,129.72	0.00	0.00	8,222,346.95
B-3	2,861,000.00	15,126.69	225.63	1.58	227.21	15,353.90	0.00	0.00	2,860,772.79
B-4	5,721,000.00	30,248.09	451.18	3.17	454.35	30,702.44	0.00	0.00	5,720,545.65
B-5	2,503,000.00	13,233.87	197.39	1.39	198.78	13,432.65	0.00	0.00	2,502,801.22
B-6	1,787,235.00	9,449.48	141.11	0.99	142.10	9,591.58	0.00	0.00	1,787,092.90
L	0.00	1,595.73	0.00	0.00	0.00	1,595.73	0.00	0.00	0.00
P-1	100.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	100.00
P-2	100.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	100.00


Total	715,103,535.00	3,086,623.12	1,923,043.18	13,496.29	8,148,827.92	11,235,451.04	0.00	0.00	706,954,707.08


Interest Detail - REMIC III
	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)
A-1	5.25875%	518,092,000.00	2,043,387.22	0.00	0.00	0.00	2,043,387.22	2,043,387.22	0.00
1-A-2	6.28767%	75,940,000.00	397,904.75	0.00	0.00	0.00	397,904.75	397,904.75	0.00
2-A-2	6.46887%	29,073,000.00	156,724.45	0.00	0.00	0.00	156,724.45	156,724.45	0.00
3-A-2	6.35738%	56,243,000.00	297,965.25	0.00	0.00	0.00	297,965.25	297,965.25	0.00
A-R	6.28767%	100.00	0.52	0.00	0.00	0.00	0.52	0.52	0.00
B-1	6.34464%	14,660,000.00	77,510.40	0.00	0.00	0.00	77,510.40	77,510.40	0.00
B-2	6.34464%	8,223,000.00	43,476.67	0.00	0.00	0.00	43,476.67	43,476.67	0.00
B-3	6.34464%	2,861,000.00	15,126.69	0.00	0.00	0.00	15,126.69	15,126.69	0.00
B-4	6.34464%	5,721,000.00	30,248.09	0.00	0.00	0.00	30,248.09	30,248.09	0.00
B-5	6.34464%	2,503,000.00	13,233.87	0.00	0.00	0.00	13,233.87	13,233.87	0.00
B-6	6.34464%	1,787,235.00	9,449.48	0.00	0.00	0.00	9,449.48	9,449.48	0.00
L	0.00000%	0.00	0.00	0.00	0.00	0.00	0.00	1,595.73	0.00
P-1	0.00000%	100.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
P-2	0.00000%	100.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00


Total		715,103,535.00	3,085,027.39	0.00	0.00	0.00	3,085,027.39	3,086,623.12	0.00



Page 3 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2007 Distribution


Current Period Distribution - REMIC III
			Prior						Current
			Prior

	Class	Original	Principal			Total	Realized	Deferred	Principal

Class	Type	Face Value	Balance	Interest	Principal	Distribution	Loss	Interest	Balance
			(1)	(2)	(3)	(4)=(2)+(3)	(5)	(6)	(7)=(1)-(3)-(5)+(6)
A-1-1	SR	243,988,000.00	243,988,000.00	962,303.92	2,336,640.77	3,298,944.69	0.00	0.00	241,651,359.23
A-1-1	SR	243,988,000.00	243,988,000.00	962,303.92	2,336,640.77	3,298,944.69	0.00	0.00	241,651,359.23
A-1-2	SR	93,404,000.00	93,404,000.00	368,391.21	3,414,177.34	3,782,568.55	0.00	0.00	89,989,822.66
A-1-3	SR	180,700,000.00	180,700,000.00	712,692.09	461,470.34	1,174,162.43	0.00	0.00	180,238,529.66






Total		518,092,000.00	518,092,000.00	2,043,387.22	6,212,288.45	8,255,675.67	0.00	0.00	511,879,711.55
Total




Interest Accrual Detail Current Period Factor Information per $1,000 of Original Face Value
					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)
A-1-1	11/29/07	12/25/07	A-Act/360		243,988,000.00	1,000.000000	3.944062	9.576868	13.520930	990.423132
A-1-2	11/29/07	12/25/07	A-Act/360		93,404,000.00	1,000.000000	3.944062	36.552796	40.496858	963.447204
A-1-3	11/29/07	12/25/07	A-Act/360		180,700,000.00	1,000.000000	3.944062	2.553793	6.497855	997.446207








Page 4 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2007 Distribution


Distribution to Date - REMIC III
									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)
A-1-1	243,988,000.00	962,303.92	2,320,356.07	16,284.70	2,336,640.77	3,298,944.69	0.00	0.00	241,651,359.23
A-1-2	93,404,000.00	368,391.21	3,390,382.99	23,794.35	3,414,177.34	3,782,568.55	0.00	0.00	89,989,822.66
A-1-3	180,700,000.00	712,692.09	458,254.23	3,216.11	461,470.34	1,174,162.43	0.00	0.00	180,238,529.66






Total	518,092,000.00	2,043,387.22	6,168,993.29	43,295.16	6,212,288.45	8,255,675.67	0.00	0.00	511,879,711.55


Interest Detail - REMIC III
	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)
A-1-1	5.25875%	243,988,000.00	962,303.92	0.00	0.00	0.00	962,303.92	962,303.92	0.00
A-1-2	5.25875%	93,404,000.00	368,391.21	0.00	0.00	0.00	368,391.21	368,391.21	0.00
A-1-3	5.25875%	180,700,000.00	712,692.09	0.00	0.00	0.00	712,692.09	712,692.09	0.00






Total		518,092,000.00	2,043,387.22	0.00	0.00	0.00	2,043,387.22	2,043,387.22	0.00



Page 5 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2007 Distribution

Collection Account Report
SUMMARY

	Group 3	Group 2	Group 1	Total
Principal Collections	605,913.54	4,477,168.82	3,065,745.40	8,148,827.76
Principal Withdrawals	0.00	0.00	0.00	0.00
Principal Other Accounts	0.00	0.00	0.00	0.00
TOTAL NET PRINCIPAL	605,913.54	4,477,168.82	3,065,745.40	8,148,827.76
Interest Collections	1,385,073.90	729,343.90	1,846,988.79	3,961,406.60
Interest Withdrawals	-0.00	-0.00	-0.00	-0.00
Interest Other Accounts	191.25	0.00	1,404.48	(694,278.11)
Interest Fees	-63,724.32	-34,357.80	-82,423.08	-180,505.21
TOTAL NET INTEREST	1,321,540.83	694,986.11	1,765,970.19	3,086,623.28
TOTAL AVAILABLE FUNDS FOR DISTRIBUTION	1,927,454.37	5,172,154.93	4,831,715.59	11,235,451.04




PRINCIPAL - COLLECTIONS

	Group 3	Group 2	Group 1	Total
Scheduled Principal Received	16,204.54	5,841.41	34,745.49	56,791.44
Curtailments	589,709.00	488.45	9,999.91	600,197.36
Prepayments In Full	0.00	4,470,838.96	3,021,000.00	7,491,838.96
Repurchased/Substitutions	0.00	0.00	0.00	0.00
Liquidations	0.00	0.00	0.00	0.00
Insurance Principal	0.00	0.00	0.00	0.00
Other Additional Principal	0.00	0.00	0.00	0.00
Delinquent Principal	-1,745.18	-18.25	-2,530.57	-4,294.00
Realized Losses	-0.00	-0.00	-0.00	-0.00
Advanced Principal	1,745.18	18.25	2,530.57	4,294.00
TOTAL PRINCIPAL COLLECTED	605,913.54	4,477,168.82	3,065,745.40	8,148,827.76




PRINCIPAL - WITHDRAWALS

SPACE INTENTIONALLY LEFT BLANK




PRINCIPAL - OTHER ACCOUNTS

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






Page 6 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2007 Distribution


INTEREST - COLLECTIONS

	Group 3	Group 2	Group 1	Total
Scheduled Interest	1,400,559.20	736,107.83	1,872,231.85	4,008,898.88
Repurchased/Substitution Interest	0.00	0.00	0.00	0.00
Liquidation Interest	0.00	0.00	0.00	0.00
Insurance Interest	0.00	0.00	0.00	0.00
Other Additional Interest	0.00	0.00	0.00	0.00
Prepayment Interest Shortfalls	-0.00	-663.52	-2,903.93	-3,567.45
Delinquent Interest	-285,940.74	-122,723.05	-459,606.05	-868,269.84
Compensating Interest	0.00	663.52	2,903.93	3,567.45
Civil Relief Act Shortfalls	-0.00	-0.00	-0.00	-0.00
Interest Advanced	270,455.45	115,959.12	434,362.99	820,777.56
Interest Realized Loss	-0.00	-0.00	-0.00	-0.00
TOTAL INTEREST COLLECTED	1,385,073.90	729,343.90	1,846,988.79	3,961,406.60




INTEREST - WITHDRAWALS

SPACE INTENTIONALLY LEFT BLANK




INTEREST - OTHER ACCOUNTS
INTEREST - OTHER ACCOUNTS
	Group 3	Group 2	Group 1	Total
Hard Prepayment Charges Collected. *
Hard Prepayment Charges Waived. *
Hard Prepayment Charges paid by the servicer.	0.00	0.00	0.00	0.00

Soft Prepayment Charges Collected. *
Soft Prepayment Charges Waived. *
Soft Prepayment Charges paid by the servicer.	0.00	0.00	0.00	0.00

Late Payment Fee waived	199.09	0.00	288.14	487.23
Late Payment Fee collected. *
Late Payment Fee paid by the servicer	191.25	0.00	1,404.48	1,595.73

Net Swap Receipt/(Payment)				(695,873.84)
. a) Swap Payment				2,739,261.07
. b) Swap Receipt				2,043,387.23
. c) Swap Termination Payment				0.00
. d) Defaulted Swap Termination Payment				0.00

TOTAL INTEREST OTHER ACCOUNTS	191.25	0.00	1,404.48	(694,278.11)
* Information not available with Trustee





Page 7 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2007 Distribution


INTEREST FEES
INTEREST FEES
	Group 3	Group 2	Group 1	Total
Current Servicing Fees	62,456.54	33,524.40	79,996.57	175,977.51
Trustee Fees	935.30	483.46	1,262.88	2,681.64
PMI	332.48	349.94	1,163.64	1,846.05
TOTAL INTEREST FEES	63,724.32	34,357.80	82,423.08	180,505.21



Page 8 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8

Mortgage Pass-Through Certificates

December 26, 2007 Distribution

Credit Enhancement Report

ACCOUNTS

Distribution Account

Beginning Account Balance

0.00

Account Deposit

11,934,006.54

Account Withdrawal

11,934,006.54

Ending Account Balance

0.00

INSURANCE

SPACE INTENTIONALLY LEFT BLANK

STRUCTURAL FEATURES

SPACE INTENTIONALLY LEFT BLANK

Page 9 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2007 Distribution

Collateral Report


COLLATERAL



		Group 3	Group 2	Group 1	Total



Loan Count:
Loan Count:


Original	323	165	460	948
Prior	323	165	460	948
Prefunding	0	0	0	0
Scheduled Paid Offs	-0	-0	-0	-0
Full Voluntary Prepayments	-0	-4	-3	-7
Repurchases	-0	-0	-0	-0
Liquidations	-0	-0	-0	-0
Current	323	161	457	941
Principal Balance:


Original	249,413,861.40	128,922,643.79	336,766,829.65	715,103,334.84
Prior	249,413,861.40	128,922,643.79	336,766,829.65	715,103,334.84
Prefunding	0.00	0.00	0.00	0.00
Scheduled Principal	-16,204.54	-5,841.41	-34,745.49	-56,791.44
Partial Prepayments	-589,709.00	-488.45	-9,999.91	-600,197.36
Full Voluntary Prepayments	-0.00	-4,470,838.96	-3,021,000.00	-7,491,838.96
Repurchases	-0.00	-0.00	-0.00	-0.00
Liquidations	-0.00	-0.00	-0.00	-0.00
Current	248,807,947.86	124,445,474.97	333,701,084.25	706,954,507.08

Stated Principal Balance of Substitute Mortgage Loans				0.00





PREFUNDING

SPACE INTENTIONALLY LEFT BLANK






Page 10 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8

Mortgage Pass-Through Certificates

December 26, 2007 Distribution



CHARACTERISTICS
CHARACTERISTICS

	Group 3	Group 2	Group 1	Total
Weighted Average Coupon Original	6.73848%	6.85162%	6.67132%	6.72725%
Weighted Average Coupon Prior	6.73848%	6.85162%	6.67132%	6.72725%
Weighted Average Coupon Current	6.73848%	6.85162%	6.67132%	6.72725%
Weighted Average Months to Maturity Original	356	357	356	356
Weighted Average Months to Maturity Prior	356	357	356	356
Weighted Average Months to Maturity Current	356	357	356	356
Weighted Avg Remaining Amortization Term Original	356	357	356	356
Weighted Avg Remaining Amortization Term Prior	356	357	356	356
Weighted Avg Remaining Amortization Term Current	356	357	356	356
Weighted Average Seasoning Original	2.92	3.06	3.95	3.43
Weighted Average Seasoning Prior	2.92	3.06	3.95	3.43
Weighted Average Seasoning Current	2.92	3.06	3.95	3.43

Page 11 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8

Mortgage Pass-Through Certificates

December 26, 2007 Distribution



ARM CHARACTERISTICS
ARM CHARACTERISTICS

	Group 3	Group 2	Group 1	Total
Weighted Average Margin Original	2.68331%	2.70454%	2.63818%	2.66589%
Weighted Average Margin Prior	2.68331%	2.70454%	2.63818%	2.66589%
Weighted Average Margin Current	2.68331%	2.70454%	2.63818%	2.66589%
Weighted Average Max Rate Original	11.78905%	11.90020%	11.78128%	11.80543%
Weighted Average Max Rate Prior	11.78905%	11.90020%	11.78128%	11.80543%
Weighted Average Max Rate Current	11.78905%	11.90020%	11.78128%	11.80543%
Weighted Average Min Rate Original	2.68331%	2.70454%	2.63818%	2.66589%
Weighted Average Min Rate Prior	2.68331%	2.70454%	2.63818%	2.66589%
Weighted Average Min Rate Current	2.68331%	2.70454%	2.63818%	2.66589%
Weighted Average Cap Up Original	1.99822%	1.87833%	1.88185%	1.92180%
Weighted Average Cap Up Prior	1.99822%	1.87833%	1.88185%	1.92180%
Weighted Average Cap Up Current	1.99822%	1.87833%	1.88185%	1.92180%
Weighted Average Cap Down Original	1.99822%	1.87833%	1.88185%	1.92180%
Weighted Average Cap Down Prior	1.99822%	1.87833%	1.88185%	1.92180%
Weighted Average Cap Down Current	1.99822%	1.87833%	1.88185%	1.92180%





Page 12 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2007 Distribution


SERVICING FEES & ADVANCES
SERVICING FEES & ADVANCES

	Group 3	Group 2	Group 1	Total




Current Servicing Fees	62,456.54	33,524.40	79,996.57	175,977.51
Delinquent Servicing Fees	15,485.29	6,763.93	25,243.06	47,492.28
TOTAL SERVICING FEES	77,941.83	40,288.33	105,239.64	223,469.80


Total Servicing Fees	77,941.83	40,288.33	105,239.64	223,469.80
Compensating Interest	-0.00	-663.52	-2,903.93	-3,567.45
Delinquent Servicing Fees	-15,485.29	-6,763.93	-25,243.06	-47,492.28
COLLECTED SERVICING FEES	62,456.54	32,860.89	77,092.65	172,410.07


Total Advanced Interest	270,455.45	115,959.12	434,362.99	820,777.56
Total Advanced Principal	1,745.18	18.25	2,530.57	4,294.00
Aggregate Advances with respect to this Distribution	272,200.63	115,977.37	436,893.56	825,071.56


Any additional servicing compensation received by the
Servicer attributable to penalties, fees, Excess Proceeds
or other similar charges or fees and items. *


The aggregate amount of Advances reimbursed
during the related Due Period. *
The general source of funds for such reimbursements. *
The aggregate amount of Advances outstanding as
of the close of business on the Distribution Date. *


The aggregate amount of Servicing Advances
reimbursed during the related Due Period. *
The general source of funds for such reimbursements. *
The aggregate amount of Servicing Advances outstanding
as of the close of business on the Distribution Date. *



* Information not available with Trustee




ADDITIONAL COLLATERAL INFORMATION
ADDITIONAL COLLATERAL INFORMATION
	Group 3	Group 2	Group 1	Total
Prepayment Interest Shortfall (PPIS)	0.00	663.52	2,903.93	3,567.45
Compensating Interest	0.00	(663.52)	(2,903.93)	(3,567.45)
Net Prepayment Interest Shortfall (PPIS)	0.00	0.00	0.00	0.00
Weighted Average Net Mortgage Rate	6.357383%	6.468866%	6.287671%	6.344652%





Page 13 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2007 Distribution

Delinquency Report

TOTAL
		< 1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT	Balance		2,521,342.24	0.00	0.00	2,521,342.24
	% Balance		0.36%	0.00%	0.00%	0.36%
	# Loans		5	0	0	5
	% # Loans		0.53%	0.00%	0.00%	0.53%
FORECLOSURE	Balance	0.00	0.00	0.00	0.00	0.00
	% Balance	0.00%	0.00%	0.00%	0.00%	0.00%
	# Loans	0	0	0	0	0
	% # Loans	0.00%	0.00%	0.00%	0.00%	0.00%
BANKRUPTCY	Balance	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	2,521,342.24	0.00	0.00	2,521,342.24
	% Balance	0.00%	0.36%	0.00%	0.00%	0.36%
	# Loans	0	5	0	0	5
	% # Loans	0.00%	0.53%	0.00%	0.00%	0.53%

Page 14 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2007 Distribution


GROUP 1
		< 1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT	Balance		540,000.00	0.00	0.00	540,000.00
	% Balance		0.16%	0.00%	0.00%	0.16%
	# Loans		1	0	0	1
	% # Loans		0.22%	0.00%	0.00%	0.22%
FORECLOSURE	Balance	0.00	0.00	0.00	0.00	0.00
	% Balance	0.00%	0.00%	0.00%	0.00%	0.00%
	# Loans	0	0	0	0	0
	% # Loans	0.00%	0.00%	0.00%	0.00%	0.00%
BANKRUPTCY	Balance	0.00	0.00	0.00	0.00	0.00
	% Balance	0.00%	0.00%	0.00%	0.00%	0.00%
	# Loans	0	0	0	0	0
	% # Loans	0.00%	0.00%	0.00%	0.00%	0.00%
REO	Balance	0.00	0.00	0.00	0.00	0.00
	% Balance	0.00%	0.00%	0.00%	0.00%	0.00%
	# Loans	0	0	0	0	0
	% # Loans	0.00%	0.00%	0.00%	0.00%	0.00%
TOTAL	Balance	0.00	540,000.00	0.00	0.00	540,000.00
	% Balance	0.00%	0.16%	0.00%	0.00%	0.16%
	# Loans	0	1	0	0	1
	% # Loans	0.00%	0.22%	0.00%	0.00%	0.22%

Page 15 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2007 Distribution


GROUP 2
		< 1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT	Balance		1,075,500.00	0.00	0.00	1,075,500.00
	% Balance		0.86%	0.00%	0.00%	0.86%
	# Loans		2	0	0	2
	% # Loans		1.24%	0.00%	0.00%	1.24%
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	1,075,500.00	0.00	0.00	1,075,500.00
	% Balance	0.00%	0.86%	0.00%	0.00%	0.86%
	# Loans	0	2	0	0	2
	% # Loans	0.00%	1.24%	0.00%	0.00%	1.24%

Page 16 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2007 Distribution


GROUP 3
		< 1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT	Balance		905,842.24	0.00	0.00	905,842.24
	% Balance		0.36%	0.00%	0.00%	0.36%
	# Loans		2	0	0	2
	% # Loans		0.62%	0.00%	0.00%	0.62%
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	905,842.24	0.00	0.00	905,842.24
	% Balance	0.00%	0.36%	0.00%	0.00%	0.36%
	# Loans	0	2	0	0	2
	% # Loans	0.00%	0.62%	0.00%	0.00%	0.62%

Page 17 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8

Mortgage Pass-Through Certificates

December 26, 2007 Distribution

REO Report

Loan Number

Original

Stated

Current

State &

First

Principal

Paid to

Note

LTV at

Original

Payment

Loan Group

Balance

Date

Rate

Origination

Term

Date

Page 18 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8

Mortgage Pass-Through Certificates

December 26, 2007 Distribution

Foreclosure Report

Loan Number

Original

Stated

Current

State &

First

Principal

Paid to

Note

LTV at

Original

Payment

Loan Group

Balance

Date

Rate

Origination

Term

Date

Page 19 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2007 Distribution

Prepayment Report

VOLUNTARY PREPAYMENTS
VOLUNTARY PREPAYMENTS

		Group 3	Group 2	Group 1	Total


Current


Number of Paid in Full Loans	0	4	3	7
Number of Repurchased Loans	0	0	0	0
Total Number of Loans Prepaid in Full	0	4	3	7
Curtailments Amount	589,709.00	488.45	9,999.91	600,197.36
Paid in Full Balance	0.00	4,470,838.96	3,021,000.00	7,491,838.96
Repurchased Loans Balance	0.00	0.00	0.00	0.00
Total Prepayment Amount	589,709.00	4,471,327.41	3,030,999.91	8,092,036.32
Cumulative


Number of Paid in Full Loans	0	4	3	7
Number of Repurchased Loans	0	0	0	0
Total Number of Loans Prepaid in Full	0	4	3	7
Paid in Full Balance	0.00	4,470,838.96	3,021,000.00	7,491,838.96
Repurchased Loans Balance	0.00	0.00	0.00	0.00
Curtailments Amount	589,709.00	488.45	9,999.91	600,197.36
Total Prepayment Amount	589,709.00	4,471,327.41	3,030,999.91	8,092,036.32

Page 20 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2007 Distribution


VOLUNTARY PREPAYMENTS RATES - Including Liquidated Balances



		Group 3	Group 2	Group 1	Total





SMM	0.24%	3.47%	0.90%	1.13%
3 Months Avg SMM	0.24%	3.47%	0.90%	1.13%
12 Months Avg SMM	0.24%	3.47%	0.90%	1.13%
Avg SMM Since Cut-off	0.24%	3.47%	0.90%	1.13%



CPR	2.80%	34.53%	10.28%	12.77%
3 Months Avg CPR	2.80%	34.53%	10.28%	12.77%
12 Months Avg CPR	2.80%	34.53%	10.28%	12.77%
Avg CPR Since Cut-off	2.80%	34.53%	10.28%	12.77%



PSA	479.22%	5,648.13%	1,300.25%	1,859.32%
3 Months Avg PSA Approximation	479.22%	5,648.13%	1,300.24%	1,859.32%
12 Months Avg PSA Approximation	479.22%	5,648.13%	1,300.24%	1,859.32%
Avg PSA Since Cut-off Approximation	479.22%	5,648.13%	1,300.24%	1,859.32%


(*) SMM, CPR, PSA Figures Include Liquidated Balances

Page 21 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8

Mortgage Pass-Through Certificates

December 26, 2007 Distribution

PREPAYMENT CALCULATION METHODOLOGY - Including Liquidated Balances

Single Monthly Mortality (SMM): (Voluntary partial and full prepayments + Repurchases + Liquidated Balances)/(Beg Principal Balance - Sched Principal)

Conditional Prepayment Rate (CPR): 1-((1-SMM)^12)

PSA Standard Prepayment Model: CPR/(0.20%*min(30,WAS))

Average SMM over period between nth month and mth month (AvgSMMn,m): 1 - [(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/(0.20%*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 22 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2007 Distribution


VOLUNTARY PREPAYMENTS RATES - Excluding Liquidated Balances



		Group 3	Group 2	Group 1	Total





SMM	0.24%	3.47%	0.90%	1.13%
3 Months Avg SMM	0.24%	3.47%	0.90%	1.13%
12 Months Avg SMM	0.24%	3.47%	0.90%	1.13%
Avg SMM Since Cut-off	0.24%	3.47%	0.90%	1.13%



CPR	2.80%	34.53%	10.28%	12.77%
3 Months Avg CPR	2.80%	34.53%	10.28%	12.77%
12 Months Avg CPR	2.80%	34.53%	10.28%	12.77%
Avg CPR Since Cut-off	2.80%	34.53%	10.28%	12.77%



PSA	479.22%	5,648.13%	1,300.25%	1,859.32%
3 Months Avg PSA Approximation	479.22%	5,648.13%	1,300.24%	1,859.32%
12 Months Avg PSA Approximation	479.22%	5,648.13%	1,300.24%	1,859.32%
Avg PSA Since Cut-off Approximation	479.22%	5,648.13%	1,300.24%	1,859.32%

(*) SMM, CPR, PSA Figures Exclude Liquidated Balances
(*) SMM, CPR, PSA Figures Exclude Liquidated Balances

Page 23 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8

Mortgage Pass-Through Certificates

December 26, 2007 Distribution

PREPAYMENT CALCULATION METHODOLOGY - Excluding Liquidated Balances

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/(0.20%*min(30,WAS))

Average SMM over period between nth month and mth month (AvgSMMn,m): 1 - [(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/(0.20%*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 24 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8

Mortgage Pass-Through Certificates

December 26, 2007 Distribution

Prepayment Detail Report

Prepayment Detail Report - Mortgage Loans Prepaid in Full During Current Distribution

Loan Number

Original

Current

State &

Type Prepayment

First

Loan

Principal

Prepayment

Note

LTV at

Payment

Loan Group

Status

Balance

Amount

Date

Rate

Origination

Original Term

Date

6126115 1

580,000.00

21-Nov-2007

8.250%

CA - 80.00%

Paid Off - 360

01-May-2007

6127599 1

441,000.00

30-Nov-2007

6.875%

NC - 70.00%

Paid Off - 360

01-Mar-2007

127861122 2

2,080,000.00

03-Dec-2007

7.500%

CA - 67.10%

Paid Off - 360

01-Oct-2007

127874694 2

568,000.00

04-Dec-2007

7.250%

GA - 78.35%

Paid Off - 360

01-Oct-2007

128000549 2

706,000.00

705,338.96

07-Dec-2007

7.375%

WA - 78.80%

Paid Off - 360

01-Oct-2007

128154058 1

2,000,000.00

27-Nov-2007

7.375%

PA - 40.00%

Paid Off - 360

01-Dec-2007

128345136 2

1,117,500.00

28-Nov-2007

7.500%

CA - 74.50%

Paid Off - 360

01-Nov-2007

TOTAL

7,492,500.00

7,491,838.96

Page 25 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2007 Distribution

Realized Loss Report

COLLATERAL REALIZED LOSSES


		Group 3	Group 2	Group 1	Total


Current





	Subsequent Recoveries

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




	Number of Loans Liquidated		0	0	0	0

	Collateral Realized Loss/(Gain) Amount		0.00	0.00	0.00	0.00
	Net Liquidation Proceeds		0.00	0.00	0.00	0.00
Cumulative Subsequent Recoveries



	Special Hazard Loss Coverage Amt					0.00
	Fraud Loss Coverage Amt					0.00
	Bankruptcy Loss Coverage Amt					0.00

Page 26 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2007 Distribution


DEFAULT SPEEDS
DEFAULT SPEEDS
	Group 3	Group 2	Group 1	Total




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


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


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


Principal Only Loss Severity Approx for Current Period	0.00%	0.00%	0.00%	0.00%
3 Months Avg Loss Severity Approximation	0.00%	0.00%	0.00%	0.00%
12 Months Avg Loss Severity Approximation	0.00%	0.00%	0.00%	0.00%
Avg Loss Severity Approximation Since Cut-Off	0.00%	0.00%	0.00%	0.00%


Principal & Interest Loss Severity Approx for Current Period	0.00%	0.00%	0.00%	0.00%
3 Months Avg Loss Severity Approximation	0.00%	0.00%	0.00%	0.00%
12 Months Avg Loss Severity Approximation	0.00%	0.00%	0.00%	0.00%
Avg Loss Severity Approximation Since Cut-Off	0.00%	0.00%	0.00%	0.00%

Page 27 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8

Mortgage Pass-Through Certificates

December 26, 2007 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)

Principal Only Loss Severity Approximation for current period:

Sum(Principal Realized Loss Amount)/sum(Beg Principal Balance of Liquidated Loans)

Principal & Interest Loss Severity Approximation for current period:

Sum(Principal & Interest Realized Loss Amount)/sum(Beg Principal Balance of Liquidated Loans)

Average Loss Severity Approximation over period between nth month and mth month:

Sum(Realized Loss Amount)/sum(Beg Principal Balance of Liquidated Loans for months in the period n,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.

All Realized Losses in excess of Principal Balance are treated as Interest Realized Losses.

Page 28 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8

Mortgage Pass-Through Certificates

December 26, 2007 Distribution

Realized Loss Detail Report

Loan Number

Current

State &

Prior

Realized

Cumulative

Loan

Note

LTV at

Original

Principal

Loss/(Gain)

Realized

Loan Group

Status

Rate

Origination

Term

Balance

Revision

Loss/(Gain)

TOTAL

Page 29 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8

Mortgage Pass-Through Certificates

December 26, 2007 Distribution

Triggers and Adj. Cert. Report

TRIGGER EVENTS

Group 3

Group 2

Group 1

Total

Has Optional Termination Date Reached

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

ADJUSTABLE RATE CERTIFICATE INFORMATION

SPACE INTENTIONALLY LEFT BLANK

ADDITIONAL INFORMATION

Group 3

Group 2

Group 1

Total

Senior Percentage

94.999933%

95.000379%

94.999885%

Subordinate Percentage

5.000067%

4.999621%

5.000115%

Senior Prepayment Percentage

100.000000%

Subordinate Prepayment Percentage

0.000000%

Subordinate Pass Through Rate

6.344644%

Current LIBOR Rate

4.808750%

Libor Rate Determination Date

11/27/2007

Next LIBOR Rate

4.865000%

Next Libor Determination Date

12/21/2007

Page 30 of 31

IndyMac INDA Mortgage Loan Trust 2007-AR8



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
December 26, 2007 Distribution

Other Related Information
ADDITIONAL INFORMATION
ADDITIONAL INFORMATION
	Group 3	Group 2	Group 1	Total
Current Scheduled Payments	1,416,763.74	741,949.24	1,906,977.37	4,065,690.34
Current Scheduled Payments 1 Month Prior	0.00	0.00	0.00	0.00
Current Scheduled Payments 2 Month Prior	0.00	0.00	0.00	0.00
Current Scheduled Payments 3 Month Prior	0.00	0.00	0.00	0.00
Current Scheduled Payments 4 Month Prior	0.00	0.00	0.00	0.00
Current Scheduled Payments 5 Month Prior	0.00	0.00	0.00	0.00
Current Scheduled Payments 6 Month Prior	0.00	0.00	0.00	0.00
Current Scheduled Payments 7 Month Prior	0.00	0.00	0.00	0.00
Current Scheduled Payments 8 Month Prior	0.00	0.00	0.00	0.00
Current Scheduled Payments 9 Month Prior	0.00	0.00	0.00	0.00
Current Scheduled Payments 10 Month Prior	0.00	0.00	0.00	0.00
Current Scheduled Payments 11 Month Prior	0.00	0.00	0.00	0.00


Sched. Payments for 60+Day Delinquent Loans	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
Sched. Pmts - 60+Day Delinquent Loans, 2 Month Prior	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
Sched. Pmts - 60+Day Delinquent Loans, 4 Month Prior	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
Sched. Pmts - 60+Day Delinquent Loans, 6 Month Prior	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
Sched. Pmts - 60+Day Delinquent Loans, 8 Month Prior	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
Sched. Pmts - 60+Day Delinquent Loans, 10 Month Prior	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



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





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IndyMac INDA Mortgage Loan Trust 2007-AR8 10-D