IndyMac INDX Mortgage Loan Trust 2006-AR4

Mortgage Pass-Through Certificates

June 26, 2006 Distribution

External Parties

Table of Contents

Page

Seller

IndyMac Bank

1. Certificate Payment Report

2. Collection Account Report

Servicer(s)

3. Credit Enhancement Report

IndyMac Bank

4. Collateral Report

5. Delinquency Report

Underwriter(s)

6. REO Report

Lehman Brothers

7. Foreclosure Report

8. Prepayment Report

PMI Insurer

9. Prepayment Detail Report

10. Realized Loss Report

Swap Counterparty

11. Realized Loss Detail Report

IXIS Financial Products Inc.

12. Triggers and Adj. Cert. Report

Cap Provider

13. Additional Certificate Report

IXIS Financial Products Inc.

14. Other Related Information

Total Number of Pages

Dates

Contacts

Cut-Off Date:

March 01, 2006

Jennifer Hermansader

Close Date:

March 31, 2006

Administrator

First Distribution Date:

April 25, 2006

(714) 247-6258

Jennifer.Vandyne@db.com

Address:

Distribution Date:

June 26, 2006

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

Record Date:

May 31, 2006

Factor Information:

(800) 735-7777

June 23, 2006

Main Phone Number:

(714) 247-6000

Determination Date:

June 19, 2006

https://www.tss.db.com/invr

Page 1 of 24

IndyMac INDX Mortgage Loan Trust 2006-AR4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
June 26, 2006 Distribution

Certificate Payment Report
Current Period Distribution - REMIC III
				Prior						Current
	Class		Original	Principal			Total	Realized	Deferred	Principal
	Class		Original	Principal			Total	Realized	Deferred	Principal
Class	Type	Cur	Face Value	Balance	Interest	Principal	Distribution	Loss	Interest	Balance

			(1)	(2)	(3)	(4)=(2)+(3)	(5)	(6)	(7)=(1)-(3)-(5)+(6)
			(1)	(2)	(3)	(4)=(2)+(3)	(5)	(6)	(7)=(1)-(3)-(5)+(6)
A-1A	SR	$	709,946,000.00	703,921,100.00	3,310,775.57	6,916,731.71	10,227,507.28	0.00	0.00	697,004,368.29
A-1A	SR	$	709,946,000.00	703,921,100.00	3,310,775.57	6,916,731.71	10,227,507.28	0.00	0.00	697,004,368.29
A-1B	SR	$	332,815,000.00	329,990,592.10	1,578,455.00	3,242,488.96	4,820,943.96	0.00	0.00	326,748,103.14
A-1C	SR	$	160,356,000.00	158,995,151.62	766,179.97	1,562,287.03	2,328,467.00	0.00	0.00	157,432,864.59
A-2A	SR	$	200,000,000.00	198,302,715.98	939,734.54	1,948,523.33	2,888,257.87	0.00	0.00	196,354,192.65
M-1	MEZ	$	32,525,000.00	32,525,000.00	159,047.25	0.00	159,047.25	0.00	0.00	32,525,000.00
M-2	MEZ	$	18,909,000.00	18,909,000.00	92,801.17	0.00	92,801.17	0.00	0.00	18,909,000.00
M-3	MEZ	$	7,563,000.00	7,563,000.00	37,319.20	0.00	37,319.20	0.00	0.00	7,563,000.00
M-4	MEZ	$	8,320,000.00	8,320,000.00	42,755.56	0.00	42,755.56	0.00	0.00	8,320,000.00
M-5	MEZ	$	7,563,000.00	7,563,000.00	39,537.68	0.00	39,537.68	0.00	0.00	7,563,000.00
M-6	MEZ	$	10,589,000.00	10,589,000.00	64,298.76	0.00	64,298.76	0.00	0.00	10,589,000.00
M-7	MEZ	$	7,563,000.00	7,563,000.00	45,924.21	0.00	45,924.21	0.00	0.00	7,563,000.00
M-8	MEZ	$	8,320,000.00	8,320,000.00	50,520.89	0.00	50,520.89	0.00	0.00	8,320,000.00
C	NOF	$	8,327,150.71	10,589,573.75	2,314,287.39	0.00	2,314,287.39	0.00	0.00	10,589,573.75
P	NOF	$	100.00	100.00	287,982.40	0.00	287,982.40	0.00	0.00	100.00
R	NOF/RES	$	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00


Total		1,512,796,250.71	1,503,151,233.45	9,729,619.59	13,670,031.03	23,399,650.62	0.00	0.00	1,489,481,202.42
Total




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

A-1A	05/25/06	06/25/06	A-Act/360	45661EAV6	709,946,000.00	991.513580	4.663419	9.742617	14.406036	981.770963
A-1A	05/25/06	06/25/06	A-Act/360	45661EAV6	709,946,000.00	991.513580	4.663419	9.742617	14.406036	981.770963
A-1B	05/25/06	06/25/06	A-Act/360	45661EAW4	332,815,000.00	991.513580	4.742740	9.742617	14.485357	981.770963
A-1C	05/25/06	06/25/06	A-Act/360	45661EAX2	160,356,000.00	991.513580	4.777994	9.742617	14.520610	981.770963
A-2A	05/25/06	06/25/06	A-Act/360	45661EAY0	200,000,000.00	991.513580	4.698673	9.742617	14.441289	981.770963
M-1	05/25/06	06/25/06	A-Act/360	45661EAZ7	32,525,000.00	1,000.000000	4.890000	0.000000	4.890000	1,000.000000
M-2	05/25/06	06/25/06	A-Act/360	45661EBA1	18,909,000.00	1,000.000000	4.907778	0.000000	4.907778	1,000.000000
M-3	05/25/06	06/25/06	A-Act/360	45661EBB9	7,563,000.00	1,000.000000	4.934444	0.000000	4.934444	1,000.000000
M-4	05/25/06	06/25/06	A-Act/360	45661EBC7	8,320,000.00	1,000.000000	5.138889	0.000000	5.138889	1,000.000000
M-5	05/25/06	06/25/06	A-Act/360	45661EBD5	7,563,000.00	1,000.000000	5.227777	0.000000	5.227777	1,000.000000
M-6	05/25/06	06/25/06	A-Act/360	45661EBE3	10,589,000.00	1,000.000000	6.072222	0.000000	6.072222	1,000.000000
M-7	05/25/06	06/25/06	A-Act/360	45661EBF0	7,563,000.00	1,000.000000	6.072221	0.000000	6.072221	1,000.000000
M-8	05/25/06	06/25/06	A-Act/360	45661EBG8	8,320,000.00	1,000.000000	6.072222	0.000000	6.072222	1,000.000000
C	05/01/06	05/30/06	F-30/360	45661EBK9	8,327,150.71	1,271.692337	277.920680	0.000000	277.920680	1,271.692337
P	05/01/06	05/30/06	F-30/360	45661EBJ2	100.00	1,000.000000	2,879,824.000000	0.000000	2,879,824.000000	1,000.000000
R	05/01/06	05/30/06	F-30/360	45661EBL7	0.00	0.000000	0.000000	0.000000	0.000000	0.000000




Page 2 of 24

IndyMac INDX Mortgage Loan Trust 2006-AR4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
June 26, 2006 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-1A	709,946,000.00	9,434,188.15	11,993,040.61	948,591.10	12,941,631.71	22,375,819.86	0.00	0.00	697,004,368.29
A-1B	332,815,000.00	4,499,726.90	5,622,207.62	444,689.24	6,066,896.86	10,566,623.76	0.00	0.00	326,748,103.14
A-1C	160,356,000.00	2,184,552.25	2,708,876.47	214,258.94	2,923,135.41	5,107,687.66	0.00	0.00	157,432,864.59
A-2A	200,000,000.00	2,678,307.04	3,378,578.27	267,229.09	3,645,807.35	6,324,114.39	0.00	0.00	196,354,192.65
M-1	32,525,000.00	451,558.51	0.00	0.00	0.00	451,558.51	0.00	0.00	32,525,000.00
M-2	18,909,000.00	263,498.72	0.00	0.00	0.00	263,498.72	0.00	0.00	18,909,000.00
M-3	7,563,000.00	105,977.25	0.00	0.00	0.00	105,977.25	0.00	0.00	7,563,000.00
M-4	8,320,000.00	121,528.27	0.00	0.00	0.00	121,528.27	0.00	0.00	8,320,000.00
M-5	7,563,000.00	112,424.71	0.00	0.00	0.00	112,424.71	0.00	0.00	7,563,000.00
M-6	10,589,000.00	183,393.67	0.00	0.00	0.00	183,393.67	0.00	0.00	10,589,000.00
M-7	7,563,000.00	130,985.57	0.00	0.00	0.00	130,985.57	0.00	0.00	7,563,000.00
M-8	8,320,000.00	144,096.26	0.00	0.00	0.00	144,096.26	0.00	0.00	8,320,000.00
C	8,327,150.71	2,324,170.94	0.00	0.00	0.00	2,324,170.94	0.00	2,262,423.04	10,589,573.75
P	100.00	436,020.58	0.00	0.00	0.00	436,020.58	0.00	0.00	100.00
R	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00


Total	1,512,796,250.71	23,070,428.82	23,702,702.97	1,874,768.37	25,577,471.33	48,647,900.15	0.00	2,262,423.04	1,489,481,202.42


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-1A	5.29125%	703,921,100.00	3,310,775.57	0.00	0.00	0.00	3,310,775.57	3,310,775.57	0.00
A-1B	5.38125%	329,990,592.10	1,578,455.00	0.00	0.00	0.00	1,578,455.00	1,578,455.00	0.00
A-1C	5.42125%	158,995,151.62	766,179.97	0.00	0.00	0.00	766,179.97	766,179.97	0.00
A-2A	5.33125%	198,302,715.98	939,734.54	0.00	0.00	0.00	939,734.54	939,734.54	0.00
M-1	5.50125%	32,525,000.00	159,047.25	0.00	0.00	0.00	159,047.25	159,047.25	0.00
M-2	5.52125%	18,909,000.00	92,801.17	0.00	0.00	0.00	92,801.17	92,801.17	0.00
M-3	5.55125%	7,563,000.00	37,319.20	0.00	0.00	0.00	37,319.20	37,319.20	0.00
M-4	5.78125%	8,320,000.00	42,755.56	0.00	0.00	0.00	42,755.56	42,755.56	0.00
M-5	5.88125%	7,563,000.00	39,537.68	0.00	0.00	0.00	39,537.68	39,537.68	0.00
M-6	6.58565%	10,589,000.00	61,987.07	0.00	0.00	0.00	61,987.07	64,298.76	0.00
M-7	6.58565%	7,563,000.00	44,273.13	0.00	0.00	0.00	44,273.13	45,924.21	0.00
M-8	6.58565%	8,320,000.00	48,704.55	0.00	0.00	0.00	48,704.55	50,520.89	0.00
C	262.25275%	10,589,573.75	0.00	0.00	0.00	0.00	0.00	2,314,287.39	0.00
P	0.00000%	100.00	0.00	0.00	0.00	0.00	0.00	287,982.40	0.00
R	0.00000%	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00


Total		1,503,151,233.45	7,121,570.69	0.00	0.00	0.00	7,121,570.69	9,729,619.59	0.00



Page 3 of 24

IndyMac INDX Mortgage Loan Trust 2006-AR4

Mortgage Pass-Through Certificates

June 26, 2006 Distribution

Collection Account Report

SUMMARY

Total

Principal Collections

13,670,031.03

Principal Withdrawals

0.00

Principal Other Accounts

0.00

TOTAL NET PRINCIPAL

13,670,031.03

Interest Collections

8,917,931.14

Interest Withdrawals

-0.00

Interest Fees

-118,616.40

Interest Other Accounts

930,304.85

TOTAL NET INTEREST

9,729,619.59

TOTAL AVAILABLE FUNDS FOR DISTRIBUTION

23,399,650.62

PRINCIPAL - COLLECTIONS

Total

Scheduled Principal Received

188.36

Curtailments

(3,527,969.75)

Prepayments In Full

17,197,812.42

Repurchased/Substitutions

0.00

Liquidations

0.00

Insurance Principal

0.00

Other Additional Principal

0.00

Delinquent Principal

-188.36

Realized Losses

-0.00

Advanced Principal

188.36

TOTAL PRINCIPAL COLLECTED

13,670,031.03

PRINCIPAL - WITHDRAWALS

SPACE INTENTIONALLY LEFT BLANK

PRINCIPAL - OTHER ACCOUNTS

Total

TOTAL PRINCIPAL OTHER ACCOUNTS

0.00

Page 4 of 24

IndyMac INDX Mortgage Loan Trust 2006-AR4

Mortgage Pass-Through Certificates

June 26, 2006 Distribution

INTEREST - COLLECTIONS

Total

Scheduled Interest

9,270,928.44

Repurchased/Substitution Interest

0.00

Liquidation Interest

0.00

Insurance Interest

0.00

Other Additional Interest

930,304.85

Prepayment Interest Shortfalls

-9,011.03

Delinquent Interest

-6,971,806.68

Compensating Interest

9,011.03

Civil Relief Act Shortfalls

-0.00

Interest Realized Loss

0.00

Interest Advanced

6,618,809.38

TOTAL INTEREST COLLECTED

8,917,931.14

INTEREST - WITHDRAWALS

Total

Non Recoverable Advances

0.00

Extraordinary Trust Fund Expenses

0.00

TOTAL INTEREST WITHDRAWALS

0.00

INTEREST - OTHER ACCOUNTS

Total

Prepayment Charges

287,982.40

Net Swap Payment

642,322.45

. a) Swap Payment

0.00

. b) Counterparty Payment

6,483,031.12

Cap Receipt

0.00

TOTAL INTEREST OTHER ACCOUNTS

930,304.85

INTEREST FEES

Total

Current Servicing Fees

116,737.46

Trustee Fees

1,878.94

TOTAL INTEREST FEES

118,616.40

Page 5 of 24

IndyMac INDX Mortgage Loan Trust 2006-AR4

Mortgage Pass-Through Certificates

June 26, 2006 Distribution

Credit Enhancement Report

ACCOUNTS

Cap Account

Initial Deposit

1,000.00

Releases

0.00

Carryover Reserve Fund

Initial Deposit

2,001,000.00

Releases

1,935,126.84

Beginning Balance

65,873.16

Interest Earnings

0.00

Shortfall/Reductions

5,779.11

Amount Withdrawn

5,779.11

Ending Balance

65,873.16

Swap Account

Initial Deposit

1,000.00

Releases

0.00

INSURANCE

SPACE INTENTIONALLY LEFT BLANK

STRUCTURAL FEATURES

Total

Overcollateralized Amount - Prior Period

10,589,573.75

Current Period Principal Realized Losses

0.00

Overcollateralized Amount - After Current

10,589,573.75

Net Monthly Excess Cashflow

2,320,066.50

Overcollateralization Increase Amount

0.00

Overcollateralization Release Amount

0.00

Overcollateralized Amount - Ending

10,589,573.75

Overcollateralization Deficiency Amount

0.00

Overcollateralization Excess Amount

0.00

Overcollateralization Target Amount

10,589,573.75

Page 6 of 24

IndyMac INDX Mortgage Loan Trust 2006-AR4

Mortgage Pass-Through Certificates

June 26, 2006 Distribution

Collateral Report

COLLATERAL

Total

Loan Count:

Original

4,578

Prior

4,537

Prefunding

Scheduled Paid Offs

-0

Full Voluntary Prepayments

-48

Repurchases

-0

Liquidations

-0

Current

4,489

Principal Balance:

Original

1,512,796,250.71

Prior

1,503,151,233.45

Prefunding

0.00

Scheduled Principal

-188.36

Partial Prepayments

(3,527,969.75)

Full Voluntary Prepayments

-17,197,812.42

Repurchases

-0.00

Liquidations

-0.00

Current

1,489,481,202.42

PREFUNDING

SPACE INTENTIONALLY LEFT BLANK

Page 7 of 24

IndyMac INDX Mortgage Loan Trust 2006-AR4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
June 26, 2006 Distribution


CHARACTERISTICS
CHARACTERISTICS

							Total
Weighted Average Coupon Original							4.11201%
Weighted Average Coupon Prior							7.17482%
Weighted Average Coupon Current							7.40119%
Weighted Average Months to Maturity Original							375
Weighted Average Months to Maturity Prior							377
Weighted Average Months to Maturity Current							376
Weighted Avg Remaining Amortization Term Original							375
Weighted Avg Remaining Amortization Term Prior							377
Weighted Avg Remaining Amortization Term Current							376
Weighted Average Seasoning Original							1.70
Weighted Average Seasoning Prior							2.70
Weighted Average Seasoning Current							3.69

Page 8 of 24

IndyMac INDX Mortgage Loan Trust 2006-AR4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
June 26, 2006 Distribution


ARM CHARACTERISTICS
ARM CHARACTERISTICS

		Total
Weighted Average Margin Original		3.38863%
Weighted Average Margin Prior		3.38900%
Weighted Average Margin Current		3.38871%
Weighted Average Max Rate Original		10.01830%
Weighted Average Max Rate Prior		10.01865%
Weighted Average Max Rate Current		10.01904%
Weighted Average Min Rate Original		3.38863%
Weighted Average Min Rate Prior		3.38900%
Weighted Average Min Rate Current		3.38871%
Weighted Average Cap Up Original		0.00000%
Weighted Average Cap Up Prior		0.00000%
Weighted Average Cap Up Current		0.00000%
Weighted Average Cap Down Original		0.00000%
Weighted Average Cap Down Prior		0.00000%
Weighted Average Cap Down Current		0.00000%




SERVICING FEES & ADVANCES
SERVICING FEES & ADVANCES

		Total




Current Servicing Fees		116,737.46
Delinquent Servicing Fees		352,997.30
TOTAL SERVICING FEES		469,734.77


Total Servicing Fees		469,734.77
Compensating Interest		-9,011.03
Delinquent Servicing Fees		-352,997.30
COLLECTED SERVICING FEES		107,726.44


Total Advanced Interest		6,618,809.38
Total Advanced Principal		188.36
Aggregate Advances with respect to this Distribution		6,618,997.74
Unrecovered Advances		0.00
Non Recoverable Advance		0.00
Servicer Escrow Advances		0.00





ADDITIONAL COLLATERAL INFORMATION
ADDITIONAL COLLATERAL INFORMATION
		Total
	Prepayment Interest Shortfall (PPIS)	9,011.03
	Compensating Interest	(9,011.03)
	Net Prepayment Interest Shortfall (PPIS)	0.00


	Ending Pool Stated Principal Balance	7.537475%





Page 9 of 24

IndyMac INDX Mortgage Loan Trust 2006-AR4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
June 26, 2006 Distribution

Delinquency Report

TOTAL
		< 1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT	Balance		27,973,131.39	5,048,810.53	617,048.22	33,638,990.14
	% Balance		1.88%	0.34%	0.04%	2.26%
	# Loans		84	11	3	98
	% # Loans		1.87%	0.25%	0.07%	2.18%
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	27,973,131.39	5,048,810.53	617,048.22	33,638,990.14
	% Balance	0.00%	1.88%	0.34%	0.04%	2.26%
	# Loans	0	84	11	3	98
	% # Loans	0.00%	1.87%	0.25%	0.07%	2.18%

Page 10 of 24

IndyMac INDX Mortgage Loan Trust 2006-AR4

Mortgage Pass-Through Certificates

June 26, 2006 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 11 of 24

IndyMac INDX Mortgage Loan Trust 2006-AR4

Mortgage Pass-Through Certificates

June 26, 2006 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 12 of 24

IndyMac INDX Mortgage Loan Trust 2006-AR4

Mortgage Pass-Through Certificates

June 26, 2006 Distribution

Prepayment Report

VOLUNTARY PREPAYMENTS

Total

Current

Number of Paid in Full Loans

Number of Repurchased Loans

Total Number of Loans Prepaid in Full

Curtailments Amount

(3,527,969.75)

Paid in Full Balance

17,197,812.42

Repurchased Loans Balance

0.00

Total Prepayment Amount

13,669,842.67

Cumulative

Number of Paid in Full Loans

Number of Repurchased Loans

Total Number of Loans Prepaid in Full

Paid in Full Balance

29,613,721.96

Repurchased Loans Balance

1,189,973.72

Curtailments Amount

(9,328,311.69)

Total Prepayment Amount

21,475,383.99

Page 13 of 24

IndyMac INDX Mortgage Loan Trust 2006-AR4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
June 26, 2006 Distribution


VOLUNTARY PREPAYMENTS RATES



		Total





SMM	0.91%
3 Months Avg SMM	0.48%
12 Months Avg SMM	0.48%
Avg SMM Since Cut-off	0.48%



CPR	10.38%
3 Months Avg CPR	5.57%
12 Months Avg CPR	5.57%
Avg CPR Since Cut-off	5.57%



PSA	1,408.32%
3 Months Avg PSA Approximation	1,032.22%
12 Months Avg PSA Approximation	1,032.22%
Avg PSA Since Cut-off Approximation	1,032.22%

Page 14 of 24

IndyMac INDX Mortgage Loan Trust 2006-AR4

Mortgage Pass-Through Certificates

June 26, 2006 Distribution

PREPAYMENT CALCULATION METHODOLOGY

Single Monthly Mortality (SMM): (Voluntary partial and full prepayments + Repurchases + Liquidation Balance)/(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/(0.02*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 24

IndyMac INDX Mortgage Loan Trust 2006-AR4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
June 26, 2006 Distribution

Prepayment Detail Report

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


Loan Number	Original			Current	State &	Type Prepayment	First
Loan Number	Original			Current	State &	Type Prepayment	First
&	Loan	Principal	Prepayment		Prepayment	Note	LTV at	&	Payment
Loan Group	Status	Balance	Amount		Date	Rate	Origination	Original Term	Date

121744668 1		1,100,000.00	1,105,303.47	25-May-2006	8.000%	CA - 68.75%	Paid Off - 360	01-Nov-2005
121744668 1		1,100,000.00	1,105,303.47	25-May-2006	8.000%	CA - 68.75%	Paid Off - 360	01-Nov-2005
122238017 1		648,000.00	653,472.26	09-Jun-2006	6.961%	CA - 80.00%	Paid Off - 360	01-Dec-2005
122398230 1		386,250.00	386,874.31	31-May-2006	6.375%	CA - 75.00%	Paid Off - 360	01-Jan-2006
122398257 1		443,000.00	442,496.32	30-May-2006	7.000%	CA - 69.98%	Paid Off - 480	01-Dec-2005
122398286 1		560,000.00	562,467.55	22-May-2006	7.000%	CA - 80.00%	Paid Off - 360	01-Jan-2006
122405129 1		500,000.00	503,650.36	18-May-2006	7.125%	CA - 62.11%	Paid Off - 360	01-Jan-2006
122405202 1		336,000.00	339,931.79	25-May-2006	8.375%	CA - 80.00%	Paid Off - 360	01-Jan-2006
122405214 1		1,000,000.00	1,008,877.58	07-Jun-2006	8.000%	NJ - 71.43%	Paid Off - 360	01-Jan-2006
122405223 1		478,000.00	474,436.31	31-May-2006	8.250%	CA - 70.29%	Paid Off - 360	01-Jan-2006
122406004 1		475,000.00	478,245.97	31-May-2006	7.750%	CA - 50.00%	Paid Off - 360	01-Feb-2006
122413589 1		750,000.00	761,261.92	02-Jun-2006	8.375%	CA - 78.13%	Paid Off - 360	01-Dec-2005
122414022 1		750,000.00	755,422.50	13-Jun-2006	7.625%	WA - 68.18%	Paid Off - 360	01-Jan-2006
122414317 1		465,000.00	468,042.00	24-May-2006	7.875%	CA - 75.00%	Paid Off - 360	01-Feb-2006
122414473 1		332,000.00	334,443.05	06-Jun-2006	8.000%	CA - 79.05%	Paid Off - 360	01-Feb-2006
122417024 1		190,700.00	191,863.24	31-May-2006	7.500%	OR - 79.99%	Paid Off - 360	01-Feb-2006
122417081 1		216,000.00	217,712.93	30-May-2006	7.375%	WA - 80.00%	Paid Off - 360	01-Jan-2006
122417199 1		257,600.00	256,954.54	07-Jun-2006	7.375%	AZ - 80.00%	Paid Off - 360	01-Feb-2006
122417212 1		170,500.00	170,949.28	02-Jun-2006	7.500%	CA - 36.28%	Paid Off - 360	01-Mar-2006
122417414 1		265,600.00	266,492.39	13-Jun-2006	7.500%	MA - 80.00%	Paid Off - 360	01-Mar-2006
122417484 1		256,000.00	255,916.56	02-Jun-2006	7.500%	CA - 80.00%	Paid Off - 360	01-Mar-2006
122417542 1		416,000.00	417,392.67	24-May-2006	7.500%	CA - 80.00%	Paid Off - 360	01-Mar-2006
122417688 1		201,600.00	202,276.64	30-May-2006	7.500%	MD - 80.00%	Paid Off - 360	01-Mar-2006
122555651 1		275,000.00	275,521.71	01-Jun-2006	7.511%	HI - 58.51%	Paid Off - 360	01-Mar-2006
122605842 1		520,000.00	519,853.64	17-May-2006	6.711%	CA - 80.00%	Paid Off - 360	01-Apr-2006
122607564 1		115,000.00	115,333.25	01-Jun-2006	7.311%	FL - 43.89%	Paid Off - 360	01-Mar-2006
122613415 1		320,000.00	320,219.34	01-Jun-2006	7.711%	NJ - 80.00%	Paid Off - 360	01-Apr-2006
122645444 1		172,000.00	172,267.33	06-Jun-2006	7.161%	NY - 80.00%	Paid Off - 480	01-Apr-2006
122659105 1		385,000.00	386,109.50	30-May-2006	7.661%	CA - 77.78%	Paid Off - 360	01-Mar-2006
122697896 1		185,000.00	185,009.47	06-Jun-2006	7.111%	MD - 73.41%	Paid Off - 360	01-Apr-2006
122709261 1		200,000.00	200,081.06	26-May-2006	7.511%	CA - 59.70%	Paid Off - 360	01-Mar-2006
122737173 1		650,000.00	651,118.44	06-Jun-2006	7.361%	CA - 77.84%	Paid Off - 480	01-Apr-2006
122755773 1		391,000.00	390,901.17	06-Jun-2006	7.511%	CA - 79.92%	Paid Off - 360	01-Apr-2006
122780379 1		138,000.00	137,857.25	22-May-2006	7.511%	VA - 44.52%	Paid Off - 360	01-Mar-2006
122791307 1		175,000.00	175,565.59	02-Jun-2006	7.511%	CA - 70.00%	Paid Off - 360	01-Mar-2006
122792039 1		260,000.00	260,000.62	02-Jun-2006	7.511%	CA - 61.90%	Paid Off - 360	01-Apr-2006
122792339 1		110,000.00	110,084.92	13-Jun-2006	7.311%	MA - 34.59%	Paid Off - 360	01-Mar-2006
122811282 1		504,000.00	504,198.82	26-May-2006	7.361%	CA - 79.56%	Paid Off - 360	01-Apr-2006
122816588 1		301,000.00	302,535.73	08-Jun-2006	7.511%	CA - 68.41%	Paid Off - 480	01-Mar-2006
122827836 1		229,000.00	228,533.36	19-May-2006	6.711%	NJ - 65.43%	Paid Off - 360	01-Apr-2006
122833954 1		131,800.00	131,808.15	30-May-2006	6.961%	SD - 73.22%	Paid Off - 360	01-Apr-2006


Page 16 of 24

IndyMac INDX Mortgage Loan Trust 2006-AR4

Mortgage Pass-Through Certificates

June 26, 2006 Distribution

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

122840035 1

112,500.00

112,591.15

12-Jun-2006

7.861%

CA - 75.00%

Paid Off - 360

01-Apr-2006

122849931 1

315,000.00

315,012.63

25-May-2006

7.511%

CA - 68.48%

Paid Off - 360

01-Apr-2006

122861510 1

145,000.00

145,019.47

12-Jun-2006

7.211%

CA - 48.01%

Paid Off - 360

01-Apr-2006

122863834 1

310,000.00

310,041.66

31-May-2006

7.211%

CA - 56.36%

Paid Off - 360

01-Apr-2006

122879754 1

140,000.00

138,570.71

17-May-2006

7.711%

NJ - 80.00%

Paid Off - 360

01-Apr-2006

122941134 1

512,000.00

511,941.06

14-Jun-2006

6.911%

HI - 80.00%

Paid Off - 360

01-Apr-2006

122949985 1

262,500.00

262,712.67

01-Jun-2006

7.861%

CA - 75.00%

Paid Off - 360

01-Apr-2006

123014657 1

80,000.00

80,440.08

02-Jun-2006

7.375%

FL - 67.23%

Paid Off - 360

01-Feb-2006

TOTAL

17,136,050.00

17,197,812.42

Page 17 of 24

IndyMac INDX Mortgage Loan Trust 2006-AR4

Mortgage Pass-Through Certificates

June 26, 2006 Distribution

Realized Loss Report

COLLATERAL REALIZED LOSSES

Total

Current

Number of Loans Liquidated

Collateral Principal Realized Loss/(Gain) Amount

0.00

Collateral Interest Realized Loss/(Gain) Amount

0.00

Net Liquidation Proceeds

0.00

Cumulative

Number of Loans Liquidated

Collateral Realized Loss/(Gain) Amount

0.00

Net Liquidation Proceeds

0.00

Page 18 of 24

IndyMac INDX Mortgage Loan Trust 2006-AR4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
June 26, 2006 Distribution


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

Page 19 of 24

IndyMac INDX Mortgage Loan Trust 2006-AR4

Mortgage Pass-Through Certificates

June 26, 2006 Distribution

COLLATERAL REALIZED LOSS CALCULATION METHODOLOGY

Monthly Default Rate (MDR): (Beg Principal Balance of Liquidated Loans)/(Total Beg Principal Balance)

Conditional Default Rate (CDR): 1-((1-MDR)^12)

SDA Standard Default Assumption: CDR/IF(WAS<61,MIN(30,WAS)*0.02,MAX(0.03,MIN(30,WAS)*0.02-0.0095*(WAS-60)))

Average MDR over period between nth month and mth month (AvgMDRn,m): [(1-MDRn)*(1-MDRn+1)*...*(1-MDRm)]^(1/months in period n,m)

Average CDR over period between the nth month and mth month (AvgCDRn,m): 1-((1-AvgMDRn,m)^12)

Average SDA Approximation over period between the nth month and mth month:

AvgCDRn,m/IF(Avg WASn,m<61,MIN(30,Avg WASn,m)*0.02,MAX(0.03,MIN(30,Avg WASn,m)*0.02-0.0095*(Avg WASn,m-60)))

Average WASn,m: (WASn + WASn+1 +...+ WASm )/(number of months in the period n,m)

Loss Severity Approximation for current period: sum(Realized Loss Amount)/sum(Beg Principal Balance of Liquidated Loans)

Average Loss Severity Approximation over period between nth month and mth month: Avg(Loss Severityn,m)

Note: Default rates are calculated since deal issue date and include realized gains and additional realized losses and gains from prior periods.

Dates correspond to distribution dates.

Page 20 of 24

IndyMac INDX Mortgage Loan Trust 2006-AR4

Mortgage Pass-Through Certificates

June 26, 2006 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 21 of 24

IndyMac INDX Mortgage Loan Trust 2006-AR4

Mortgage Pass-Through Certificates

June 26, 2006 Distribution

Triggers and Adj. Cert. Report

TRIGGER EVENTS

Total

Does a Trigger Event Exist?

Has a Stepdown Date Occurred?

60+ Day Delinquency Balance (includes all FC,REO &

7,705,934.24

Beginning Stated Principal Balance

1,503,151,233.45

Delinquency Percentage

0.172000%

Offered Subordinate and C Class Certificate Balances

111,941,573.75

Beginning Stated Principal Balance

1,503,151,233.45

Senior Enhancement Percentage

7.447100%

Cumulative Loss Percentage

0.00000000%

Master Servicer Event of Default?

ADJUSTABLE RATE CERTIFICATE INFORMATION

SPACE INTENTIONALLY LEFT BLANK

ADDITIONAL INFORMATION

Total

Current LIBOR Rate

5.081250%

Libor Rate Determination Date

05/23/2006

Next LIBOR Rate

0.000000%

Next Libor Rate Determination Date

06/22/2006

Page 22 of 24

IndyMac INDX Mortgage Loan Trust 2006-AR4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
June 26, 2006 Distribution

Additional Certificate Report

ADDITIONAL CERTIFICATE REPORT

		Next PTR	CarryOver Amts	CarryOver Amts Unpaid	CarryOver Amts Paid
CLASS

	A-1A	5.291%	0.00	0.00	0.00
		5.291%	0.00	0.00	0.00
	A-1B	5.381%	0.00	0.00	0.00
		5.381%	0.00	0.00	0.00
	A-1C	5.421%	0.00	0.00	0.00
		5.421%	0.00	0.00	0.00
	A-2A	5.331%	0.00	0.00	0.00
		5.331%	0.00	0.00	0.00
	M-1	5.501%	0.00	0.00	0.00
		5.501%	0.00	0.00	0.00
	M-2	5.521%	0.00	0.00	0.00
		5.521%	0.00	0.00	0.00
	M-3	5.551%	0.00	0.00	0.00
		5.551%	0.00	0.00	0.00
	M-4	5.781%	0.00	0.00	0.00
		5.781%	0.00	0.00	0.00
	M-5	5.881%	0.00	0.00	0.00
		5.881%	0.00	0.00	0.00
	M-6	6.831%	2,311.69	0.00	2,311.69
		6.831%	2,311.69	0.00	2,311.69
	M-7	6.831%	1,651.08	0.00	1,651.08
		6.831%	1,651.08	0.00	1,651.08
	M-8	6.831%	1,816.34	0.00	1,816.34
		6.831%	1,816.34	0.00	1,816.34
	C	0.000%	0.00	0.00	0.00
		0.000%	0.00	0.00	0.00
	P	0.000%	0.00	0.00	0.00
		0.000%	0.00	0.00	0.00
	R	0.000%	0.00	0.00	0.00
		0.000%	0.00	0.00	0.00




Page 23 of 24

IndyMac INDX Mortgage Loan Trust 2006-AR4



Mortgage Pass-Through Certificates
Mortgage Pass-Through Certificates
June 26, 2006 Distribution

Other Related Information
ADDITIONAL INFORMATION
ADDITIONAL INFORMATION
							Total
Current Scheduled Payments							9,271,116.80
Current Scheduled Payments 1 Month Prior							9,080,435.85
Current Scheduled Payments 2 Month Prior							6,960,681.90
Current Scheduled Payments 3 Month Prior							0.00
Current Scheduled Payments 4 Month Prior							0.00
Current Scheduled Payments 5 Month Prior							0.00
Current Scheduled Payments 6 Month Prior							0.00
Current Scheduled Payments 7 Month Prior							0.00
Current Scheduled Payments 8 Month Prior							0.00
Current Scheduled Payments 9 Month Prior							0.00
Current Scheduled Payments 10 Month Prior							0.00
Current Scheduled Payments 11 Month Prior							0.00





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





Page 24 of 24

IndyMac INDX Mortgage Loan Trust 2006-AR4 10-D