Content:

Pages

Contact Information:

Statement to Certificate Holders

Analyst:

Sang Huynh

714.259.6213

Statement to Certificate Holders (Factors)

sang.huynh@abnamro.com

Pool/Non-Pool Funds Cash Reconciliation

Administrator:

Kim Sturm

312.904.4373

Pool Detail and Performance Indicators

kimberly.sturm@abnamro.com

Bond Interest Reconciliation Part I

LaSalle Website:

www.etrustee.net

Bond Interest Reconciliation Part II

Bond Principal Reconciliation

Rating Information

Outside Parties To The Transaction

End of Month Balance Reporting

15 Month Loan Status Summary Part I

15 Month Loan Status Summary Part II

15 Month Historical Payoff Summary

Prepayment Summary

Mortgage Loan Characteristics Part I

Mortgage Loan Characteristics Part II

16-18

Geographic Concentration

Current Period Realized Loss Detail

Historical Realized Loss Summary

Realized Loss Summary

Material Breaches Detail

Modified Loan Detail

Determination

Date:

15-Jun-06

First Pay. Date:

25-Apr-06

Rated Final

Payment Date:

25-Apr-36

Master Servicer: EMC Mortgage Corporation

Closing Date:

30-Mar-06

Rating Agency: Moody's Investors Service, Inc./Standard & Poor's Ratings Services

Record Date:

23-Jun-06

Depositor: Structured Asset Mortgage Investments II Inc.

Distribution Count:

Underwriter: Bear Stearns & Co. Inc.

Prior Payment:

25-May-06

Next Payment:

25-Jul-06

ABN AMRO Acct : 723563.1

Payment Date:

26-Jun-06

Distribution Date: 26-Jun-06

SACO I Trust

Mortgage-Backed Certificates

Series 2006-4

22-Jun-2006 08:26

A-1

785778RD5

320,908,000.00

292,596,017.51

10,332,334.82

0.00

282,263,682.69

1,365,773.19

0.00

5.2512500000%

A-2

785778RU7

19,022,000.00

15,934,138.72

1,126,901.53

0.00

14,807,237.19

72,960.65

0.00

5.1512500000%

A-3

785778RV5

15,978,000.00

0.00

15,978,000.00

75,149.86

0.00

5.2912500000%

M-1

785778RE3

37,775,000.00

0.00

37,775,000.00

183,712.42

0.00

5.4712500000%

M-2

785778RF0

25,697,000.00

0.00

25,697,000.00

125,201.49

0.00

5.4812500000%

M-3

785778RG8

11,050,000.00

0.00

11,050,000.00

53,936.28

0.00

5.4912500000%

M-4

785778RH6

11,050,000.00

0.00

11,050,000.00

55,213.17

0.00

5.6212500000%

M-5

785778RJ2

10,279,000.00

0.00

10,279,000.00

51,543.47

0.00

5.6412500000%

M-6

785778RK9

7,966,000.00

0.00

7,966,000.00

40,369.92

0.00

5.7012500000%

B-1

785778RL7

8,480,000.00

0.00

8,480,000.00

47,346.67

0.00

6.2812500000%

B-2

785778RM5

7,195,000.00

0.00

7,195,000.00

41,131.42

0.00

6.4312500000%

B-3

785778RN3

5,653,000.00

0.00

5,653,000.00

37,341.21

0.00

7.4312500000%

B-4

785778RP8

6,938,000.00

0.00

6,938,000.00

52,921.52

0.00

8.5812500000%

785778RW3

513,946,331.64 N

482,545,445.98

0.00

471,086,209.62

2,221,751.50

159,962.45

N/A

R-1

785778RQ6

0.00

N/A

R-2

785778RR4

0.00

N/A

R-3

785778RS2

0.00

N/A

785778RT0

0.00

N/A

Total

487,991,000.00

456,591,156.23

11,459,236.35

0.00

445,131,919.88

4,424,352.77

159,962.45

Total P&I Payment

15,883,589.12

Current Realized

Loss

Class

CUSIP

Beginning

Certificate Balance

Principal Payment

Original Face Value

(1)

N denotes notional balance not included in total

(2)

Accrued Interest plus/minus Interest Adjustment minus Deferred Interest equals Interest Payment * Denotes Controlling Class

Interest

Adjustment

Bond Payments

SACO I Trust

Mortgage-Backed Certificates

Series 2006-4

Distribution Date: 26-Jun-06

Pass-Through

Rate

Deferred Interest

Ending Certificate

Balance

Interest Payment

(2)

22-Jun-2006 08:26

Page 2 of 24

A-1

785778RD5

320,908,000.00

911.775392044

32.197186795

0.000000000

879.578205249

4.255964918

0.000000000

5.49250000%

A-2

785778RU7

19,022,000.00

837.668947534

59.242010830

0.000000000

778.426936705

3.835592998

0.000000000

5.39250000%

A-3

785778RV5

15,978,000.00

1000.000000000

0.000000000

1000.000000000

4.703333333

0.000000000

5.53250000%

M-1

785778RE3

37,775,000.00

1000.000000000

0.000000000

1000.000000000

4.863333422

0.000000000

5.71250000%

M-2

785778RF0

25,697,000.00

1000.000000000

0.000000000

1000.000000000

4.872222049

0.000000000

5.72250000%

M-3

785778RG8

11,050,000.00

1000.000000000

0.000000000

1000.000000000

4.881111312

0.000000000

5.73250000%

M-4

785778RH6

11,050,000.00

1000.000000000

0.000000000

1000.000000000

4.996666968

0.000000000

5.86250000%

M-5

785778RJ2

10,279,000.00

1000.000000000

0.000000000

1000.000000000

5.014444012

0.000000000

5.88250000%

M-6

785778RK9

7,966,000.00

1000.000000000

0.000000000

1000.000000000

5.067778057

0.000000000

5.94250000%

B-1

785778RL7

8,480,000.00

1000.000000000

0.000000000

1000.000000000

5.583333726

0.000000000

6.52250000%

B-2

785778RM5

7,195,000.00

1000.000000000

0.000000000

1000.000000000

5.716667130

0.000000000

6.67250000%

B-3

785778RN3

5,653,000.00

1000.000000000

0.000000000

1000.000000000

6.605556342

0.000000000

7.67250000%

B-4

785778RP8

6,938,000.00

1000.000000000

0.000000000

1000.000000000

7.627777457

0.000000000

8.82250000%

785778RW3

513,946,331.64 N

938.902403370

0.000000000

916.605841152

4.322925106

0.311243490

N/A

R-1

785778RQ6

0.00

0.000000000

N/A

R-2

785778RR4

0.00

0.000000000

N/A

R-3

785778RS2

0.00

0.000000000

N/A

785778RT0

0.00

0.000000000

N/A

Bond Payments

Current Realized

Loss *

Original Face

Value

Class

CUSIP

Beginning Certificate

Balance *

Principal Payment

Series 2006-4

Mortgage-Backed Certificates

* Per $1,000 of Original Face Value ** Estimated

SACO I Trust

Next Rate **

Deferred Interest *

Ending Certificate

Balance *

Interest Payment *

Interest Adjustment*

Statement to Certificate Holders (FACTORS)

Distribution Date: 26-Jun-06

22-Jun-2006 08:26

Page 3 of 24

Interest Summary

Principal Summary

Reserve Fund

Interest Summary

Principal Summary

Beginning Balance

5,000.00

Scheduled Interest

4,471,281.67

Scheduled Prin Distribution

203,340.05

Withdrawal from Trust

0.00

Fees

206,891.36

Curtailments

320,234.39

Reimbursement from Waterfall

0.00

Remittance Interest

4,264,390.31

Prepayments in Full

10,935,661.92

Ending Balance

5,000.00

Other Interest Proceeds/Shortfalls

Liquidation Proceeds

0.00

Prepayment Penalties

28,910.95

Repurchase Proceeds

0.00

Swap Agreement

Other Interest Loss

0.00

Other Principal Proceeds

0.00

Other Interest Proceeds

0.00

Remittance Principal

11,459,236.36

Net Swap payment payable to the Swap

Non-advancing Interest

0.00

Administrator

131,051.49

Net PPIS/Relief Act Shortfall

0.00

Net Swap payment payable to the Swap Provider

0.00

Modification Shortfall

0.00

Other Interest Proceeds/Shortfalls

28,910.95

Swap Termination payment payable to the Swap

Interest Adjusted

4,293,301.26

Administrator

0.00

Fee Summary

Swap Termination payment payable to the Swap

0.00

Total Servicing Fees

201,060.60

Provider

Total Trustee Fees

5,830.76

LPMI Fees

0.00

Credit Manager's Fees

0.00

Misc. Fees / Trust Expense

0.00

Insurance Premium

0.00

Total Fees

206,891.36

Advances (Principal & Interest)

Prior Month's Outstanding Advances

3,648,930.00

Current Advances

N/A

Reimbursement of Prior Advances

N/A

Outstanding Advances

3,552,618.42

P&I Due Certificate Holders

15,883,589.11

Pool Source of Funds

Non-Pool Source of Funds

P&I Advances as of the end of the Due Period do not reflect the amount of advances remitted by the Servicer on the Servicer Remittance Date due to additional proceeds received between the end of the Due Period and the Servicer Remittance Date and netted from the P&I Advances stated as of the end
of the Due Period.

Distribution Date: 26-Jun-06

Cash Reconciliation Summary

SACO I Trust

Mortgage-Backed Certificates

Series 2006-4

22-Jun-2006 08:26

Page 4 of 24

Pool Detail

Performance Indicators

Factors Impacting Principal Payment Rules

WA Rates/Life

Historical

Amount

Count

Delinquency Levels

Num

Den

Fixed

Adj

Overall

Cut-off Pool Balance

513,946,331.64

9,141

3 mo. Rolling Average

2,845,648

482,911,772

0.60%

WAC - Current

10.60%

0.00%

10.60%

Cum Scheduled Principal

612,354.99

6 mo. Rolling Average

2,845,648

482,911,772

0.60%

WAC - Original

10.63%

0.00%

10.63%

Cum Unscheduled Principal

42,201,759.95

12 mo. Rolling Average

2,845,648

482,911,772

0.60%

WAL - Current

238.45

0.00

238.45

Cum Liquidations

46,007.09

Loss Levels

Amount

Count

WAL - Original

240.76

0.00

240.76

Cum Deferred Interest

0.00

3 mo. Cum Loss

46,003.57

6 mo. Cum loss

46,003.57

Current Index Rate

Current

Amount

Count

12 mo. Cum Loss

46,003.57

Next Index Rate

Beginning Pool

482,545,445.98

8,652

93.89%

Scheduled Principal

203,340.05

0.04%

Triggers

Unscheduled Principal

11,255,896.31

199

2.19%

Deferred Interest

0.00

0.00%

> Delinquency Trigger Event

(2)

Liquidations

0.00

0.00%

Delinquency Event Calc

(1)

2,845,647.75

482,911,772

0.60%

Repurchases

0.00

0.00%

Ending Pool

471,086,209.62

8,453

91.66%

> Loss Trigger Event?

(3)

Average Loan Balance

55,730.06

Cumulative Loss

46,004

0.01%

Current Loss Detail

Amount

> Overall Trigger Event?

Liquidation

0.00

Pool Composition

Realized Loss

0.00

Step Down Date

Realized Loss Adjustment

0.00

Distribution Count

Properties

%/Score

Net Liquidation

0.00

Current Specified Enhancement %

(4)

33.55%

Cut-off LTV

96.93%

Step Down %

(5)

61.50%

Cash Out/Refinance

14.90%

Credit Enhancement

Amount

Delinquent Event Threshold %

(6)

7.00%

SFR

51.53%

Original OC

25,955,331.64

5.05%

> Step Down Date?

Target OC

25,954,289.75

5.05%

Min

Max

Beginning OC

25,954,289.75

Extra Principal

0.00

FICO

525

820

699.18

OC Amount per PSA

25,954,289.75

5.05%

Cumulative Extra Principal

44,965.20

Ending OC

25,954,289.74

OC Release

0.01

Non-Senior Certificates

132,083,000.00 25.70%

Legend:(1) 60 Days+, REO, BK, F/C % (3) Condn: Cum Loss > specified thresholds (5) Defined Benchmark (7) Condn: Distn Cnt > 36, (4) > (5)
(2) (1) > (6) then TRUE (4) Non-Senior Certs + OC Amount / Ending Pool Bal (6) Defined Benchmark (Used in Delinq Event Calc)

Owner Occupied

380,260,787.85

73.99%

Balance

498,144,451.28

76,558,424.23

264,821,080.89

Misc/Additional Information

Pool Level Information

5.081250%

5.322500%

Distribution Date: 26-Jun-06

Pool Detail and Performance Indicators Total (All Loans)

SACO I Trust

Mortgage-Backed Certificates

Series 2006-4

22-Jun-2006 08:26

Page 5 of 24

A-1

Act/360

292,596,017.51

5.251250000%

1,365,773.19

0.00

1,365,773.19

0.00

A-2

Act/360

15,934,138.72

5.151250000%

72,960.65

0.00

72,960.65

0.00

A-3

Act/360

15,978,000.00

5.291250000%

75,149.86

0.00

75,149.86

0.00

M-1

Act/360

37,775,000.00

5.471250000%

183,712.42

0.00

183,712.42

0.00

M-2

Act/360

25,697,000.00

5.481250000%

125,201.49

0.00

125,201.49

0.00

M-3

Act/360

11,050,000.00

5.491250000%

53,936.28

0.00

53,936.28

0.00

M-4

Act/360

11,050,000.00

5.621250000%

55,213.17

0.00

55,213.17

0.00

M-5

Act/360

10,279,000.00

5.641250000%

51,543.47

0.00

51,543.47

0.00

M-6

Act/360

7,966,000.00

5.701250000%

40,369.92

0.00

40,369.92

0.00

B-1

Act/360

8,480,000.00

6.281250000%

47,346.67

0.00

47,346.67

0.00

B-2

Act/360

7,195,000.00

6.431250000%

41,131.42

0.00

41,131.42

0.00

B-3

Act/360

5,653,000.00

7.431250000%

37,341.21

0.00

37,341.21

0.00

B-4

Act/360

6,938,000.00

8.581250000%

52,921.52

0.00

52,921.52

0.00

30/360

482,545,445.98

5.127280000%

2,061,789.05

159,962.44

0.00

2,221,751.49

2,221,751.50

0.00

Total

456,591,156.23

4,264,390.32

159,962.44

0.00

4,424,352.76

4,424,352.77

0.00

(1)

Basis Risk Carry-Forward Shortfall - difference between LIBOR plus margin and the Net Rate Cap.

Interest Payment

Amount

Remaining Int

Carry-Forward

Shortfall

Current Period

(Shortfall) /

Recovery

Net Cap

Rate in

Effect Y/N

Total Interest

Deductions

Method

Days

Remaining

Basis Risk Carry-

Fwd Shortfall

Outstanding Relief

Act / Prepayment

Interest Shortfalls

Class

Accrual

Certificate

Interest

Distribution Date: 26-Jun-06

Pass-Thru Rate

Total Interest

Additions

Distributable

Certificate

Interest

Bond Interest Reconciliation

Opening Balance

- - Accrual - -

SACO I Trust

Mortgage-Backed Certificates

Series 2006-4

- - - - - - - - Outstanding - - - - - - - -

22-Jun-2006 08:26

Page 6 of 24

A-1

23-Jun-06

25-May-06

26-Jun-06

0.00

A-2

23-Jun-06

25-May-06

26-Jun-06

0.00

A-3

23-Jun-06

25-May-06

26-Jun-06

0.00

M-1

23-Jun-06

25-May-06

26-Jun-06

0.00

M-2

23-Jun-06

25-May-06

26-Jun-06

0.00

M-3

23-Jun-06

25-May-06

26-Jun-06

0.00

M-4

23-Jun-06

25-May-06

26-Jun-06

0.00

M-5

23-Jun-06

25-May-06

26-Jun-06

0.00

M-6

23-Jun-06

25-May-06

26-Jun-06

0.00

B-1

23-Jun-06

25-May-06

26-Jun-06

0.00

B-2

23-Jun-06

25-May-06

26-Jun-06

0.00

B-3

23-Jun-06

25-May-06

26-Jun-06

0.00

B-4

23-Jun-06

25-May-06

26-Jun-06

0.00

31-May-06

1-May-06

1-Jun-06

0.00

28,910.95

0.00

131,051.49

0.00

Total

0.00

28,910.95

0.00

131,051.49

0.00

Prior Interest Due

Date

Current Interest

Due Date

Prior Shortfall

Reimbursement

Other Interest

Proceeds

(1)

Class

Interest Rate

SWAP Agreement

Deposits from YM

Agreement

Prior Int Carry-Fwd

Shortfall

Distribution Date: 26-Jun-06

Mortgage-Backed Certificates

Series 2006-4

SACO I Trust

Current Int Carry-

Fwd Shortfall

(2)

Current Basis Risk

Carry-Fwd

Shortfall

(1)

Other Interest Proceeds are additional interest amounts specifically allocated to the bond(s) and used in determining the bonds Distributable Interest.

(2)

Interest Carry-Forward Shortfall is unpaid interest with interest thereon.

(3)

Basis Risk Carry-Forward Shortfall - difference between LIBOR plus margin and the Net Rate Cap.

- - - - - - - - - - - - - - - - - - - - - - - - - - - Additions - - - - - - - - - - - - - - - - - - - - - - - - - - - -

- - - - - - - - - - - Deductions - - - - - - - - - -

Bond Interest Reconciliation

Other Interest

Losses

Prepayment

Premiums

Record Date

22-Jun-2006 08:26

Page 7 of 24

A-1

320,908,000.00

292,596,017.51

183,343.59

10,148,991.23

0.00

282,263,682.69

25-Apr-36

N/A

A-2

19,022,000.00

15,934,138.72

19,996.46

1,106,905.07

0.00

14,807,237.19

25-Apr-36

N/A

A-3

15,978,000.00

0.00

15,978,000.00

25-Apr-36

N/A

M-1

37,775,000.00

0.00

37,775,000.00

25-Apr-36

N/A

M-2

25,697,000.00

0.00

25,697,000.00

25-Apr-36

N/A

M-3

11,050,000.00

0.00

11,050,000.00

25-Apr-36

N/A

M-4

11,050,000.00

0.00

11,050,000.00

25-Apr-36

N/A

M-5

10,279,000.00

0.00

10,279,000.00

25-Apr-36

N/A

M-6

7,966,000.00

0.00

7,966,000.00

25-Apr-36

N/A

B-1

8,480,000.00

0.00

8,480,000.00

25-Apr-36

N/A

B-2

7,195,000.00

0.00

7,195,000.00

25-Apr-36

N/A

B-3

5,653,000.00

0.00

5,653,000.00

25-Apr-36

N/A

B-4

6,938,000.00

0.00

6,938,000.00

25-Apr-36

N/A

513,946,331.64

482,545,445.98

0.00

471,086,209.62

25-Apr-36

N/A

Total

487,991,000.00

456,591,156.23

203,340.05

11,255,896.30

0.00

445,131,919.88

Ending

Class Balance

Rated

Final

Maturity

- Credit Support -

Class

Original Class

Balance

Beginning Class

Balance

Current

Losses

Distribution Date: 26-Jun-06

Bond Principal Reconciliation

Unscheduled

Principal
Payment

SACO I Trust

Mortgage-Backed Certificates

Series 2006-4

Current

Original

Interest on

Losses

Scheduled Principal

Payment

Cumulative

Losses

- - - - - - - - - - - - - - - - Losses - - - - - - - - - - - - - - -

Extra

Principal
Payment

Prior
Loss

Reimburs.

22-Jun-2006 08:26

Page 8 of 24

Class

CUSIP

Fitch

Moody's

DBRS

S&P

A-1

785778RD5

Aaa

AAA

A-2

785778RU7

Aaa

AAA

A-3

785778RV5

Aaa

AAA

M-1

785778RE3

Aa1

AA+

M-2

785778RF0

Aa2

M-3

785778RG8

Aa3

AA-

M-4

785778RH6

A+

M-5

785778RJ2

M-6

785778RK9

A-

B-1

785778RL7

Baa1

BBB+

B-2

785778RM5

Baa2

BBB

B-3

785778RN3

Baa3

BBB-

B-4

785778RP8

Ba1

BB+

785778RW3

Ratings Information

SACO I Trust

Mortgage-Backed Certificates

Series 2006-4

DBRS

NR - Designates that the class was not rated by the rating agency.

(1)

Changed ratings provided on this report are based on information provided by the applicable rating agency via electronic transmission. It shall be understood that this transmission will generally have been provided to LaSalle within 30 days of the payment

date listed on this statement. Because ratings may have changed during the 30 day window, or may not be being provided by the rating agency in an electronic format and therefore not being updated on this report, LaSalle recommends that investors obtain
current rating information directly from the rating agency.

- - - - - - - - - - - - Original Ratings - - - - - - - - - -

Fitch

Moody's

S&P

- - - - - - - - - - - - - - - - Ratings Change / Change Date

(1)

- - - - - - - - - - - - - - - -

Distribution Date: 26-Jun-06

22-Jun-2006 08:26

Page 9 of 24

Type

Count

Count (%)

Scheduled UPB

Sched UPB (%)

Arrears

Arrears (%)

REO Book Value

8379

96.8447%

462,967,137.21

97.1779%

0.00

0.0000%

0.00

107

1.2367%

8,333,019.84

1.7491%

0.00

0.0000%

0.00

0.3814%

2,591,066.70

0.5439%

0.00

0.0000%

0.00

90+

0.2890%

2,201,812.57

0.4622%

0.00

0.0000%

0.00

BKY0

0.0925%

295,571.18

0.0620%

0.00

0.0000%

0.00

BKY30

0.0116%

23,308.70

0.0049%

0.00

0.0000%

0.00

PIF

1.1442%

0.00

0.0000%

0.00

0.0000%

0.00

Total (Prior Month End):

8652

100.0000%

476,411,916.00

100.0000%

0.00

0.0000%

0.00

Delinq Total (Prior Month End):

166

1.9186%

13,149,207.00

2.7601%

0.00

0.0000%

0.00

Total (Prior Month End):
Delinq Total (Prior Month End):

F/C Quick Sale

Value

Total

Distribution Date: 26-Jun-06

End of Month Balance Reporting

SACO I Trust

Mortgage-Backed Certificates

Series 2006-4

22-Jun-2006 08:26

Page 10 of 24

Count

Balance

Count

Balance

Count

Balance

Count

Balance

Count

Balance

Count

Balance

Count

Balance

26-Jun-06

8,280

457,680,888

107

8,333,020

2,591,067

2,162,355

318,880

25-May-06

8,528

473,908,752

5,450,529

2,950,555

235,609

25-Apr-06

8,781

489,732,444

5,092,738

278,477

26-Jun-06

97.95%

97.15%

1.27%

1.77%

0.39%

0.55%

0.28%

0.46%

0.11%

0.07%

0.00%

25-May-06

98.57%

98.21%

0.96%

1.13%

0.39%

0.61%

0.00%

0.08%

0.05%

0.00%

25-Apr-06

99.14%

98.92%

0.77%

1.03%

0.00%

0.09%

0.06%

0.00%

Total (All Loans)

Delinq 3+ Months

Bankruptcy

Foreclosure

REO

Distribution

Date

Current

Delinq 1 Month

Delinq 2 Months

Distribution Date: 26-Jun-06

Asset-Backed Facts ~ 15 Month Historical Loan Status Summary Part I

SACO I Trust

Mortgage-Backed Certificates

Series 2006-4

22-Jun-2006 08:26

Page 11 of 24

Balance

26-Jun-06

295,571

23,309

25-May-06

235,609

25-Apr-06

278,477

26-Jun-06

0.00%

0.09%

0.06%

0.01%

0.00%

25-May-06

0.00%

0.08%

0.05%

0.00%

25-Apr-06

0.00%

0.09%

0.06%

0.00%

61-90 Days

90 + Days

Total (All Loans)

61-90 Days

90 + Days

Current

31-60 Days

- - - - - - - - - - - In Foreclosure and Delinquent - - - - - - - - - - - - -

- - - - - - - - - - - - - - - In REO and Delinquent - - - - - - - - - - - - - -

- - - - - - - - - - - - - In Bankruptcy and Delinquent - - - - - - - - - - - - -

Distribution

Date

Current

31-60 Days

61-90 Days

90 + Days

Current

31-60 Days

Distribution Date: 26-Jun-06

Asset-Backed Facts ~ 15 Month Historical Loan Status Summary Part II

SACO I Trust

Mortgage-Backed Certificates

Series 2006-4

22-Jun-2006 08:27

Page 12 of 24

Insurance

Substitution

Liquidation

Remaining Term

Balance

Proceeds

Amount

Life

Coupon

Remit

26-Jun-06

8,453

471,086,210

199

10,935,662

0.00

238

11.12%

10.60%

25-May-06

8,652

482,545,446

206

11,966,086

0.00

240

11.13%

10.62%

25-Apr-06

8,857

495,103,659

283

18,125,131

0.00

46,007

240

11.15%

10.64%

Curr Weighted Avg.

Total (All Loans)

Distribution

Date

Ending Pool

Payoffs

Realized Losses

Distribution Date: 26-Jun-06

Asset-Backed Facts ~ 15 Month Historical Payoff/Loss Summary

SACO I Trust

Mortgage-Backed Certificates

Series 2006-4

22-Jun-2006 08:27

Page 13 of 24

SMM (Single Monthly Mortality)

Total

Current Period

2.27%

3-Month Average

2.74%

6-Month Average

2.74%

12-Month Average

2.74%

Average Since Cut-Off

2.74%

CPR (Conditional Prepayment Rate)

Total

Current Period

24.06%

3-Month Average

28.17%

6-Month Average

28.17%

12-Month Average

28.17%

Average Since Cut-Off

28.17%

PSA (Public Securities Association)

Total

Current Period

401%

3-Month Average

470%

6-Month Average

470%

12-Month Average

470%

Average Since Cut-Off

470%

SMM

Single Monthly Mortality

(Partial and Full Prepayments + Repurchases + Liquidations) / (Beginning Collateral Balance - Scheduled Principal)

CPR

Conditional Prepayment Rate

1 - (1 - SMM)^12)

PSA

Public Securities Association

100 * CPR / (0.2 * MIN(30,WAS))

WAS

Weighted Average Seasoning

(Original Term - Remaining Term) * (Current Scheduled Balance / Deal Scheduled Principal Balance)

Distribution Date: 26-Jun-06

Prepayment Summary

SACO I Trust

Mortgage-Backed Certificates

Series 2006-4

0.00%

2.43%

4.86%

7.29%

9.71%

12.14%

14.57%

17.00%

Jul-05

Aug-05

Sep-05

Oct-05

Nov-05

Dec-05

Jan-06

Feb-06

Mar-06

Apr-06

May-06

Jun-06

0.00%

14.29%

28.57%

42.86%

57.14%

71.43%

85.71%

100.00%

Jul-05

Aug-05

Sep-05

Oct-05

Nov-05

Dec-05

Jan-06

Feb-06

Mar-06

Apr-06

May-06

Jun-06

229%

457%

686%

914%

1143%

1371%

1600%

Jul-05

Aug-05

Sep-05

Oct-05

Nov-05

Dec-05

Jan-06

Feb-06

Mar-06

Apr-06

May-06

Jun-06

22-Jun-2006 08:27

Page 14 of 24

Min

Max

Count

% of Total

Balance

% of Total

Min

Max

Count

% of Total

Balance

% of Total

20,000

904

10.69%

13,772,679

2.92%

2,000

20,000

964

10.55%

14,823,173

2.88%

20,000

25,000

714

8.45%

16,341,028

3.47%

20,000

25,000

747

8.17%

17,114,018

3.33%

25,000

30,000

797

9.43%

22,008,090

4.67%

25,000

30,000

873

9.55%

24,134,154

4.70%

30,000

35,000

791

9.36%

25,772,617

5.47%

30,000

35,000

833

9.11%

27,184,718

5.29%

35,000

40,000

703

8.32%

26,427,955

5.61%

35,000

40,000

759

8.30%

28,564,335

5.56%

40,000

43,000

305

3.61%

12,672,883

2.69%

40,000

44,000

445

4.87%

18,727,406

3.64%

43,000

55,000

1,211

14.33%

59,157,089

12.56%

44,000

56,000

1,286

14.07%

64,059,142

12.46%

55,000

67,000

854

10.10%

51,949,062

11.03%

56,000

68,000

924

10.11%

57,198,605

11.13%

67,000

79,000

613

7.25%

44,635,366

9.47%

68,000

80,000

659

7.21%

48,872,729

9.51%

79,000

91,000

384

4.54%

32,337,662

6.86%

80,000

92,000

393

4.30%

33,669,610

6.55%

91,000

105,000

328

3.88%

32,120,118

6.82%

92,000

106,000

338

3.70%

33,408,874

6.50%

105,000

450,000

849

10.04%

133,891,659

28.42%

106,000

450,000

920

10.06%

146,189,568

28.44%

8,453

100.00%

471,086,210

100.00%

9,141

100.00%

513,946,332

100.00%

Min

Max

Count

% of Total

Balance

% of Total

Min

Max

Count

% of Total

Balance

% of Total

5.88%

8.00%

847

10.02%

49,403,345

10.49%

5.88%

8.13%

981

10.73%

57,097,749

11.11%

8.00%

8.67%

443

5.24%

23,338,907

4.95%

8.13%

8.77%

432

4.73%

23,285,495

4.53%

8.67%

9.34%

334

3.95%

19,169,848

4.07%

8.77%

9.41%

387

4.23%

21,821,927

4.25%

9.34%

10.02%

956

11.31%

52,864,253

11.22%

9.41%

10.05%

904

9.89%

50,626,668

9.85%

10.02%

10.69%

770

9.11%

48,890,134

10.38%

10.05%

10.69%

825

9.03%

52,767,406

10.27%

10.69%

11.38%

969

11.46%

55,561,152

11.79%

10.69%

11.38%

1,043

11.41%

60,439,699

11.76%

11.38%

11.84%

577

6.83%

32,207,126

6.84%

11.38%

11.88%

929

10.16%

53,858,285

10.48%

11.84%

12.31%

849

10.04%

51,810,100

11.00%

11.88%

12.38%

767

8.39%

47,395,453

9.22%

12.31%

12.78%

734

8.68%

40,591,489

8.62%

12.38%

12.88%

880

9.63%

49,764,231

9.68%

12.78%

13.25%

598

7.07%

30,468,201

6.47%

12.88%

13.38%

575

6.29%

27,916,611

5.43%

13.25%

13.75%

566

6.70%

27,983,738

5.94%

13.38%

13.88%

600

6.56%

30,399,872

5.91%

13.75%

18.38%

810

9.58%

38,797,917

8.24%

13.88%

18.38%

818

8.95%

38,572,934

7.51%

8,453

100.00%

471,086,210

100.00%

9,141

100.00%

513,946,332

100.00%

SACO I Trust

Mortgage-Backed Certificates

Series 2006-4

Distribution Date: 26-Jun-06

Mortgage Loan Characteristics Part I

Distribution by Current Ending Principal Balance

Distribution by Current Mortgage Rate

Distribution by Cut-off Principal Balance

Distribution by Original Mortgage Rate

22-Jun-2006 08:27

Page 15 of 24

8,453

471,086,210

100.00%

238.19

11.10%

9,141

513,946,332

100.00%

244.97

11.15%

8,453

471,086,210

100.00%

9,141

513,946,332

100.00%

4,392

238,362,803

50.60%

238.79

11.04%

4,765

260,660,300

50.72%

245.71

11.08%

2,262

130,763,490

27.76%

242.31

10.91%

2,446

143,487,178

27.92%

249.04

10.97%

802

51,777,412

10.99%

227.08

11.94%

851

55,285,862

10.76%

232.32

11.97%

852

41,509,462

8.81%

231.54

10.86%

919

44,957,321

8.75%

239.94

10.99%

5,287,327

1.12%

255.81

12.29%

5,394,890

1.05%

263.07

12.30%

3,385,716

0.72%

260.85

11.16%

4,160,781

0.81%

257.59

11.53%

8,453

471,086,210

100.00%

9,141

513,946,332

100.00%

SF Unattached Dwelling

PUD

Multifamily

Condo - Low Facility

Condo - High Facility

SF Attached Dwelling

Total

SF Unattached Dwelling

PUD

Multifamily

Condo - Low Facility

Condo - High Facility

SF Attached Dwelling

Total

WAMM

WAC

Fixed 2nd Lien

Property Type

# of Loans

Ending Scheduled

Balance

% of

Balance

Property Type

# of

Loans

Ending Scheduled

Balance

% of

Balance

WAMM

WAC

# of

Loans

Ending Scheduled

Balance

% of

Balance

WAMM

WAC

Distribution by Product Characteristics (Current)

Mortgage Loan Characteristics Part II

SACO I Trust

Mortgage-Backed Certificates

Series 2006-4

Distribution Date: 26-Jun-06

WAMM

WAC

Distribution by Product Characteristics (Cut-off)

Product Type

# of Loans

Original Principal

Balance

% of

Balance

Product Type

Distribution by Property Types (Current)

Total

Distribution by Property Types (Cut-off)

Fixed 2nd Lien

22-Jun-2006 08:27

Page 16 of 24

Mortgage Loan Characteristics Part II

SACO I Trust

Mortgage-Backed Certificates

Series 2006-4

Distribution Date: 26-Jun-06

5,040

324,871,775

68.96%

233.62

10.50%

5,395

351,192,659

68.33%

240.46

10.54%

2,887

120,196,655

25.51%

246.58

12.64%

3,169

133,685,544

26.01%

252.13

12.68%

526

26,017,780

5.52%

256.49

11.44%

577

29,068,128

5.66%

266.60

11.49%

8,453

471,086,210

100.00%

9,141

513,946,332

100.00%

7,272

400,359,685

84.99%

242.38

11.25%

7,867

437,387,907

85.10%

249.05

11.31%

1,050

64,332,002

13.66%

213.63

10.27%

1,135

69,935,922

13.61%

220.87

10.29%

131

6,394,523

1.36%

222.95

9.98%

139

6,622,503

1.29%

229.96

9.98%

8,453

471,086,210

100.00%

9,141

513,946,332

100.00%

Total

Purchase

Refinance/Equity Takeout

Refinance/No Cash Out

Total

Distribution by Loan Purpose (Cut-off)

Loan Purpose

# of Loans

Ending Scheduled

Balance

% of

Balance

WAMM

WAC

Refinance/No Cash Out

WAMM

WAC

Purchase

Refinance/Equity Takeout

Loan Purpose

# of

Loans

Ending Scheduled

Balance

% of

Balance

Total

Distribution by Loan Purpose (Current)

Total

Owner Occupied - Secondary Residence

Distribution by Occupancy Type (Cut-off)

Occupancy Type

# of Loans

Ending Scheduled

Balance

% of

Balance

WAMM

WAC

Owner Occupied - Primary Residence

Non-Owner Occupied

Owner Occupied - Primary Residence

Non-Owner Occupied

Owner Occupied - Secondary Residence

Distribution by Occupancy Type (Current)

Occupancy Type

# of

Loans

Ending Scheduled

Balance

% of

Balance

WAMM

WAC

22-Jun-2006 08:27

Page 17 of 24

Mortgage Loan Characteristics Part II

SACO I Trust

Mortgage-Backed Certificates

Series 2006-4

Distribution Date: 26-Jun-06

975

66,349,451

14.08%

173.36

10.91%

1,091

75,176,589

14.63%

180.35

10.94%

959

49,457,267

10.50%

175.50

7.75%

1,014

52,580,009

10.23%

183.15

7.78%

American Home Mortgage

New Century Mortgage Corp

Distribution by Originator Concentration > 10% (Current)

Distribution by Originator Concentration > 10% (Cut-off)

Originator

# of

Loans

Ending Scheduled

Balance

% of

Balance

WAMM

WAC

Originator

# of Loans

Ending Scheduled

Balance

% of

Balance

WAMM

WAC

22-Jun-2006 08:27

Page 18 of 24

WAMM

WAC

California

1,102

100,491,868

21.33%

230

10.58%

Florida

876

43,526,900

9.24%

262

12.20%

Nevada

481

30,025,148

6.37%

215

11.03%

Arizona

534

29,914,422

6.35%

236

11.51%

Virginia

398

29,693,080

6.30%

246

11.37%

Georgia

787

29,267,994

6.21%

274

11.44%

Maryland

367

23,096,840

4.90%

259

11.47%

Colorado

392

20,274,861

4.30%

212

9.82%

Texas

606

19,369,864

4.11%

253

10.62%

New Jersey

271

18,214,671

3.87%

231

11.45%

Remaining

2,639

127,210,563

27.00%

232

11.08%

WAMM

WAC

California

1,198

109,921,143

21.39%

236

10.59%

Florida

964

48,531,200

9.44%

270

12.29%

Arizona

604

33,967,193

6.61%

245

11.55%

Virginia

430

31,935,699

6.21%

254

11.40%

Nevada

508

31,769,511

6.18%

220

11.04%

Georgia

822

30,846,953

6.00%

282

11.47%

Maryland

411

26,127,840

5.08%

264

11.49%

Colorado

427

22,321,063

4.34%

221

9.95%

New Jersey

305

20,457,275

3.98%

238

11.55%

Texas

626

20,011,041

3.89%

259

10.64%

Remaining

2,846

138,057,414

26.86%

238

11.15%

(1)

Based on Current Period Ending Principal Balance

Top 10 Original State Concentration

Geographic Distribution

# of

Loans

Scheduled
Balance

(1)

% of

Balance

Top 10 Current State Concentration

Geographic Distribution

# of

Loans

Scheduled
Balance

(1)

% of

Balance

Distribution Date: 26-Jun-06

Geographic Concentration

SACO I Trust

Mortgage-Backed Certificates

Series 2006-4

Top 10 Current State Concentration

California

Arizona

Nevada

Florida

New Jersey

Texas

Colorado

Maryland

Georgia

Virginia

Remaining

22-Jun-2006 08:27

Page 19 of 24

C
M
N
O
P

REO
Short Pay
Third Party
Write-off

R
S
T
W

1
2
3
4
5

6
7
8
9

Distribution Date: 26-Jun-06

SACO I Trust

Mortgage-Backed Certificates

Series 2006-4

Adjustment Legend
Escrow Bal/Adv
MREC
Rest'd Escrow
Replacement Res.
Suspense

Third Party
Charged Off/Matured
Side Note
Manual

Liq. Type Code - Legend
Charge-off
Matured
Repurchase
Note Sale
Paid in Full

Current Period Realized Loss Detail

Loss-Certs Non-

adjusted

Subsequent

Recov/(Exp)

Original Liquidation

Balance

Adj Type

Liq Type

Loss-Certs

Adjusted

Loss-Loan

Adjusted

Net Liquidation

Proceeds

Disclosure Control #

Period

Loss to Trust

Loss-Loan Non-

adjusted

22-Jun-2006 08:27

Page 20 of 24

Distribution Date

Beginning Scheduled

Balance

Net Liquidation

Proceeds

Realized Loss

Loan Count

Realized Loss

Adjusted

Cumulative

Realized Loss

Amount

Count

Amount

Count

Amount

Count

26-Jun-06

0.00

46,003.57

25-May-06

0.00

3.52

0.00

(3.52)

46,003.57

25-Apr-06

46,007.09

0.00

46,007.09

0.00

46,007.09

Total

46,007.09

0.00

46,007.09

0.00

3.52

0.00

46,003.57

- - - - - - - - - - - - - - - - - Current Realized Loss - - - - - - - - - - - - - - - - -

Total (All Loans)

SACO I Trust

Mortgage-Backed Certificates

Series 2006-4

Distribution Date: 26-Jun-06

Historical Realized Loss Summary

Recovery on Prior

Liquidations

Claims on Prior Liquidations

(Claims)/Recoveries on

Prior Payoffs

- - - - - - - - - - - - - - Previous Liquidations/Payoffs - - - - - - - - - - - - - -

22-Jun-2006 08:27

Page 21 of 24

MDR (monthly Default Rate)

Total

Current Period

0.00%

3-Month Average

0.00%

6-Month Average

0.00%

12-Month Average

0.00%

Average Since Cut-Off

0.00%

CDR (Conditional Default Rate)

Total

Current Period

0.00%

3-Month Average

0.04%

6-Month Average

0.02%

12-Month Average

0.01%

Average Since Cut-Off

0.04%

SDA (Standard Default Assumption)

Total

Current Period

0.00%

3-Month Average

1.24%

6-Month Average

0.62%

12-Month Average

0.31%

Average Since Cut-Off

1.24%

MDR

Monthly Default Rate

(Beginning Principal Balance of Liquidated Loans) / (Total Beginning Principal Balance)

CDR

Conditional Default Rate

1 - (1 - MDR)^

SDA

Standard Default Assumption

If WAS=30 then CDR/(WAS*0.02) else if 30<WAS=60 then CDR/0.6 else if 60<WAS=120 then CDR/(0.6-((WAS-60)*0.0095)) else if WAS>120 then CDR/0.03

WAS

Weighted Average Seasoning

(Original Term - Remaining Term) * (Current Scheduled Balance / Deal Scheduled Principal Balance)

Distribution Date: 26-Jun-06

Realized Loss Summary

SACO I Trust

Mortgage-Backed Certificates

Series 2006-4

0.00%

0.57%

1.14%

1.71%

2.29%

2.86%

3.43%

4.00%

Jul-05

Aug-05

Sep-05

Oct-05

Nov-05

Dec-05

Jan-06

Feb-06

Mar-06

Apr-06

May-06

Jun-06

0.00%

4.29%

8.57%

12.86%

17.14%

21.43%

25.71%

30.00%

Jul-05

Aug-05

Sep-05

Oct-05

Nov-05

Dec-05

Jan-06

Feb-06

Mar-06

Apr-06

May-06

Jun-06

143%

286%

429%

571%

714%

857%

1000%

Jul-05

Aug-05

Sep-05

Oct-05

Nov-05

Dec-05

Jan-06

Feb-06

Mar-06

Apr-06

May-06

Jun-06

22-Jun-2006 08:27

Page 22 of 24

Material breaches of pool asset representation or warranties or transaction covenants.

Material Breach Description

Disclosure Control

Loan Group #

Ending Principal

Balance

Material Breach

Date

Distribution Date: 26-Jun-06

Material Breaches Detail

SACO I Trust

Mortgage-Backed Certificates

Series 2006-4

22-Jun-2006 08:27

Page 23 of 24

Modifications include any extensions or waivers to the mortgage loan terms, fees, penalties or payments during the preceding calendar month or that have become material over time.

Modification Description

Disclosure Control

Loan Group #

Modified Maturity

Date

Cutoff Maturity

Date

Distribution Date: 26-Jun-06

Modified Loan Detail

SACO I Trust

Mortgage-Backed Certificates

Series 2006-4

22-Jun-2006 08:27

Page 24 of 24

SACO I Trust 2006-4 10-D