
                                    UNITED STATES
                           SECURITIES AND EXCHANGE COMMISSION
                                 Washington, D.C.  20549


                                        FORM 8-K


                     Current Report Pursuant To Section 13 or 15(d) of
                            the Securities Exchange Act of 1934

           Date of Report (Date of earliest event reported):  July 25, 2005
                            (Date of earliest event reported)

            GS Mortgage Securities Corp (as Depositor under the
              Pooling and Servicing Agreement, dated as March 1, 2005,
          providing for the issuance of GSAMP Trust 2005-S1
              Mortgage Pass-Through Certificates, Series 2005-S1)
                 (Exact name of registrant as specified in charter)

                                       DELAWARE
                     (State or Other Jurisdiction of Incorporation)

               333-120274-16                          06-1442101
          (Commission File Number)        (I.R.S. Employer Identification No.)


               85 Broad Street
               New York, New York                        10004
          (Address of principal executive offices)     (Zip Code)


          Registrant's Telephone Number, Including Area Code:  (212) 902-1000


         (Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any
of the following provisions (see General Instruction A.2. below):

[  ] Written communications pursuant to Rule 425 under the Securities Act
(17 CFR 230.425)

[  ] Soliciting material pursuant to Rule 14a-12(b) under the Exchange Act
(17 CFR 240.14a-12(b))

[  ] Pre-commencement communications pursuant to Rule 14d-2(b) under the
Exchange Act (17 CFR 240.14d-2(b))

[  ] Pre-commencement communications pursuant to Rule 13e-4(c) under the
Exchange Act (17 CFR 240.13e-4(c))


     Item 8.01  Other Events

     Attached hereto is a copy of the Monthly Remittance Statements to the
     Certificateholders which was derived from the monthly information
     submitted by the Master Servicer of the Trust to the Trustee.


     Item 9.01 Financial Statements and Exhibits

     (c) Exhibits:

     Exhibit No. Description

     99.1 Monthly Remittance Statement to the Certificateholders dated as of
     July 25, 2005.

                                    Signatures

               Pursuant to the requirements of the Securities Exchange Act of
          1934, the Registrant has duly caused this report to be signed on its
          behalf by the undersigned, hereunto duly authorized.

                                   Deutsche Bank National Trust Company,
                                  in its capacity as Trustee under the
                                  Pooling and Servicing Agreement on
                                  behalf of GS Mortgage Securities Corp,
                                  Registrant


          Date:  Jul 25, 2005               By:  /s/  Katherine M. Wannenmacher
                                            Katherine M. Wannenmacher
                                            Vice President


                                   EXHIBIT INDEX

          DOCUMENT

          99.1 Monthly Remittance Statement to the Certificateholders
          dated as of July 25, 2005.



GSAMP Trust 2005-S1

Asset Backed Certificates
Asset Backed Certificates
2005-S1

July 25, 2005 Distribution

				External Parties						Table of Contents

													Page
				Seller									Page
				Seller						1. Certificate Payment Report					2
				Goldman Sachs Mortgage Securities						1. Certificate Payment Report					2
				Goldman Sachs Mortgage Securities						2. Collection Account Report					4
										2. Collection Account Report					4
										3. Credit Enhancement Report					6
										4. Collateral Report					7
				Certificate Insurer(s)						5. Delinquency Report					10
				Certificate Insurer(s)						5. Delinquency Report					10
										6. REO Report					11

										7. Foreclosure Report					12
										8. Prepayment Report					13
										9. Prepayment Detail Report					16
										9. Prepayment Detail Report					16
										10. Realized Loss Report					22
										11. Realized Loss Detail Report					25
				Servicer(s)						11. Realized Loss Detail Report					25
				Servicer(s)						12. Triggers and Adj. Cert. Report					26
				Wilshire Credit Corp						12. Triggers and Adj. Cert. Report					26
				Wilshire Credit Corp


				Underwriter(s)
				Goldman Sachs & Co.


										Total Number of Pages					26
										Total Number of Pages

				Dates						Contacts

				Cut-Off Date:			March 01, 2005			Hang Luu
				Close Date:			April 07, 2005			Administrator
				First Distribution Date:			April 25, 2005			(714) 247-6000
										hang-thai.luu@db.com
										hang-thai.luu@db.com
										Address:
										1761 East St. Andrew Place, Santa Ana, CA 92705
				Distribution Date:			July 25, 2005
										Factor Information:			(800) 735-7777
				Record Date:			June 30, 2005			Factor Information:			(800) 735-7777
										Main Phone Number:			(714) 247-6000

							July 22, 2005
							July 22, 2005

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






Page 1 of 26
GSAMP Trust 2005-S1

Asset Backed Certificates
Asset Backed Certificates
2005-S1

July 25, 2005 Distribution
Certificate Payment Report
Current Period Distribution -
					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)

A	FLT/STEP/AF	$	187,366,000.00		157,986,497.84		428,154.99		14,030,637.48		14,458,792.47		0.00		0.00		143,955,860.36
A	FLT/STEP/AF	$	187,366,000.00		157,986,497.84		428,154.99		14,030,637.48		14,458,792.47		0.00		0.00		143,955,860.36
M-1	FLT/STEP/AF	$	21,530,000.00		21,530,000.00		63,371.55		0.00		63,371.55		0.00		0.00		21,530,000.00
M-2	FIX/STEP/AF	$	19,993,000.00		19,993,000.00		98,082.33		0.00		98,082.33		0.00		0.00		19,993,000.00
B-1	FIX/STEP/AF	$	16,917,000.00		16,917,000.00		87,517.28		0.00		87,517.28		0.00		0.00		16,917,000.00
B-2	FIX/STEP/AF	$	4,742,000.00		4,742,000.00		25,875.51		0.00		25,875.51		0.00		0.00		4,742,000.00
B-3	FIX/STEP/AF	$	5,510,000.00		5,510,000.00		30,993.75		0.00		30,993.75		0.00		0.00		5,510,000.00
X	WAC/EXE	$	257,157.56		2,724,256.17		0.00		0.00		0.00		0.00		1,192,074.53		3,916,330.70
X-1	FIX	$	0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00
P	EXE	$	0.00		0.00		349,831.01		0.00		349,831.01		0.00		0.00		0.00
R-1	FIX/NPR	$	0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00
R-2	FIX/NPR	$	0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00



Total			256,315,157.56		229,402,754.01		1,083,826.42		14,030,637.48		15,114,463.90		0.00		1,192,074.53		216,564,191.06
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
	Period		Period
Class	Starting		Ending		Method		Cusip		Balance		Balance		Interest		Principal		Distribution	Balance

									(1)		(1)		(2)		(3)		(4)=(2)+(3)	(5)
A	06/27/05		07/24/05		A-Act/360		36242DB69		187,366,000.00		843.197260		2.285126		74.883583		77.168710	768.313677
M-1	06/27/05		07/24/05		A-Act/360		36242DB77		21,530,000.00		1,000.000000		2.943407		0.000000		2.943407	1,000.000000
M-2	06/01/05		06/30/05		F-30/360		36242DB85		19,993,000.00		1,000.000000		4.905834		0.000000		4.905834	1,000.000000
B-1	06/01/05		06/30/05		F-30/360		36242DB93		16,917,000.00		1,000.000000		5.173333		0.000000		5.173333	1,000.000000
B-2	06/01/05		06/30/05		F-30/360		36242DC27		4,742,000.00		1,000.000000		5.456666		0.000000		5.456666	1,000.000000
B-3	06/01/05		06/30/05		F-30/360		36242DC35		5,510,000.00		1,000.000000		5.625000		0.000000		5.625000	1,000.000000
X	06/01/05		06/30/05		F-30/360		36242DC43		257,157.56		10,593.723824		0.000000		0.000000		0.000000	15,229.304167
X-1	06/01/05		06/30/05		F-30/360		36242DC50		0.00		0.000000		0.000000		0.000000		0.000000	0.000000
P	06/01/05		06/30/05		F-30/360		36242DC68		0.00		0.000000		0.000000		0.000000		0.000000	0.000000
R-1	06/01/05		06/30/05		F-30/360		36242DC76		0.00		0.000000		0.000000		0.000000		0.000000	0.000000
R-2	06/01/05		06/30/05		F-30/360		36242DR21		0.00		0.000000		0.000000		0.000000		0.000000	0.000000





Page 2 of 26
GSAMP Trust 2005-S1

Asset Backed Certificates
Asset Backed Certificates
2005-S1

July 25, 2005 Distribution

Distribution to Date -
																	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	187,366,000.00		1,691,327.58		42,583,923.17		826,216.47		43,410,139.64		45,101,467.22		0.00		0.00		143,955,860.36
M-1	21,530,000.00		232,417.94		0.00		0.00		0.00		232,417.94		0.00		0.00		21,530,000.00
M-2	19,993,000.00		392,329.32		0.00		0.00		0.00		392,329.32		0.00		0.00		19,993,000.00
B-1	16,917,000.00		350,069.12		0.00		0.00		0.00		350,069.12		0.00		0.00		16,917,000.00
B-2	4,742,000.00		103,502.04		0.00		0.00		0.00		103,502.04		0.00		0.00		4,742,000.00
B-3	5,510,000.00		123,975.00		0.00		0.00		0.00		123,975.00		0.00		0.00		5,510,000.00
X	257,157.56		1,590,078.08		-3,606,444.48		-70,209.47		0.00		1,590,078.08		17,480.81		3,676,653.95		3,916,330.70
X-1	0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00
P	0.00		1,050,601.24		0.00		0.00		0.00		1,050,601.24		0.00		0.00		0.00
R-1	0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00
R-2	0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00



Total	256,315,157.56		5,534,300.32		38,977,478.69		756,007.00		43,410,139.64		48,944,439.96		17,480.81		3,676,653.95		216,564,191.06


Interest Detail -
	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	3.48438%		157,986,497.84		428,154.99		0.00		0.00		0.00		428,154.99		428,154.99		0.00
M-1	3.78438%		21,530,000.00		63,371.55		0.00		0.00		0.00		63,371.55		63,371.55		0.00
M-2	5.88700%		19,993,000.00		98,082.33		0.00		0.00		0.00		98,082.33		98,082.33		0.00
B-1	6.20800%		16,917,000.00		87,517.28		0.00		0.00		0.00		87,517.28		87,517.28		0.00
B-2	6.54800%		4,742,000.00		25,875.51		0.00		0.00		0.00		25,875.51		25,875.51		0.00
B-3	6.75000%		5,510,000.00		30,993.75		0.00		0.00		0.00		30,993.75		30,993.75		0.00
X	525.09358%		2,724,256.17		0.00		0.00		0.00		0.00		0.00		1,192,074.53		0.00
X-1	0.00000%		0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00
P	0.00000%		0.00		0.00		0.00		0.00		0.00		0.00		349,831.01		0.00
R-1	0.00000%		0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00
R-2	0.00000%		0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00



Total			229,402,754.01		733,995.41		0.00		0.00		0.00		733,995.41		2,275,900.95		0.00



Page 3 of 26
GSAMP Trust 2005-S1

Asset Backed Certificates
Asset Backed Certificates
2005-S1

July 25, 2005 Distribution
Collection Account Report
SUMMARY
SUMMARY
														Total
Principal Collections														12,838,562.95
Principal Withrawals														0.00
Principal Other Accounts														0.00
TOTAL NET PRINCIPAL														12,838,562.95
Interest Collections														1,949,658.43
Interest Withdrawals														-1,265.75
Interest Other Accounts														349,831.01
Interest Fees														-22,322.74
TOTAL NET INTEREST														2,275,900.95
TOTAL AVAILABLE FUNDS FOR DISTRIBUTION														15,114,463.90



PRINCIPAL - COLLECTIONS
PRINCIPAL - COLLECTIONS
															Total
Scheduled Principal Received															180,058.19
Prepayments In Full															12,596,685.67
Curtailments															61,819.09
Liquidations															0.00
Insurance Principal															0.00
Repurchased Principal Amounts															0.00
Other Principal															0.00
Total Realized Loss Of Principal															-0.00
Delinquent Principal															-149,753.92
Advanced Principal															149,753.92
TOTAL PRINCIPAL COLLECTED															12,838,562.95


PRINCIPAL - WITHDRAWALS

SPACE INTENTIONALLY LEFT BLANK



PRINCIPAL - OTHER ACCOUNTS
PRINCIPAL - OTHER ACCOUNTS
														Total
TOTAL OTHER ACCOUNTS PRINCIPAL														0.00





Page 4 of 26
GSAMP Trust 2005-S1

Asset Backed Certificates
Asset Backed Certificates
2005-S1

July 25, 2005 Distribution

INTEREST - COLLECTIONS
INTEREST - COLLECTIONS
														Total
Scheduled Interest														2,024,831.86
Liquidation Interest														0.00
Repurchased Interest														0.00
Insurance Interest														0.00
Other Interest														0.00
Relief Act Interest Shortfalls														-0.00
Prepayment Interest Shortfalls														-15,942.18
Compensating Interest														15,942.18
Delinquent Interest														-1,594,727.19
Interest Advanced														1,519,553.76
TOTAL INTEREST COLLECTED														1,949,658.43


INTEREST - WITHDRAWALS
INTEREST - WITHDRAWALS
														Total
Nonrecoverable Advances
Servicer Expenses														1,265.75
TOTAL INTEREST WITHDRAWALS														1,265.75



INTEREST - OTHER ACCOUNTS
INTEREST - OTHER ACCOUNTS
														Total
Prepayment Charges														349,831.01
TOTAL INTEREST OTHER ACCOUNTS														349,831.01



INTEREST - FEES
INTEREST - FEES
														Total
Current Servicing Fees														20,411.05
Current Trustee Fees														1,911.69
TOTAL INTEREST OTHER FEES														22,322.74




Page 5 of 26
GSAMP Trust 2005-S1

Asset Backed Certificates
Asset Backed Certificates
2005-S1

July 25, 2005 Distribution
Credit Enhancement Report
ACCOUNTS
ACCOUNTS
														Total
Excess Reserve Fund Begining Balance														0.00
Excess Reserve Fund Amount Deposited														0.00
Excess Reserve Fund Amount Withdrawn														0.00
Excess Reserve Fund Ending Balance														0.00



INSURANCE

SPACE INTENTIONALLY LEFT BLANK



STRUCTURAL FEATURES
STRUCTURAL FEATURES
														Total
Overcollateralization Amount														3,916,330.70
Overcollateralization Target Amount														14,353,648.82
Overcollateralization Deficiency Amount														11,629,392.65
Overcollateralization Release Amount														0.00




Page 6 of 26
GSAMP Trust 2005-S1

Asset Backed Certificates
Asset Backed Certificates
2005-S1

July 25, 2005 Distribution
Collateral Report


COLLATERAL



															Total



Loan Count:


Original														5,001
Prior														4,531
Prefunding														0
Scheduled Paid Offs														-0
Full Voluntary Prepayments														-213
Repurchases														-0
Liquidations														-0
Current														4,318
Principal Balance:


Original														256,315,157.56
Prior														229,402,754.01
Prefunding														0.00
Scheduled Principal														-180,058.19
Partial Prepayments														-61,819.09
Full Voluntary Prepayments														-12,596,685.67
Repurchases														-0.00
Liquidations														-0.00
Current														216,564,191.06





PREFUNDING

SPACE INTENTIONALLY LEFT BLANK






Page 7 of 26
GSAMP Trust 2005-S1

Asset Backed Certificates
Asset Backed Certificates
2005-S1

July 25, 2005 Distribution

CHARACTERISTICS
CHARACTERISTICS
														Total
Weighted Average Coupon Original														10.60096%
Weighted Average Coupon Prior														10.59692%
Weighted Average Coupon Current														10.59184%
Weighted Average Months to Maturity Original														304
Weighted Average Months to Maturity Prior														302
Weighted Average Months to Maturity Current														300
Weighted Avg Remaining Amortization Term Original														304
Weighted Avg Remaining Amortization Term Prior														302
Weighted Avg Remaining Amortization Term Current														300
Weighted Average Seasoning Original														7.25
Weighted Average Seasoning Prior														9.23
Weighted Average Seasoning Current														10.22









Page 8 of 26
GSAMP Trust 2005-S1

Asset Backed Certificates
Asset Backed Certificates
2005-S1

July 25, 2005 Distribution

ARM CHARACTERISTICS
ARM CHARACTERISTICS
														Total
Weighted Average Margin Original														0.00000%
Weighted Average Margin Prior														0.00000%
Weighted Average Margin Current														0.00000%
Weighted Average Max Rate Original														0.00000%
Weighted Average Max Rate Prior														0.00000%
Weighted Average Max Rate Current														0.00000%
Weighted Average Min Rate Original														0.00000%
Weighted Average Min Rate Prior														0.00000%
Weighted Average Min Rate Current														0.00000%
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

															Total




Current Servicing Fees														20,411.05
Delinquent Servicing Fees														75,173.43
TOTAL SERVICING FEES														95,584.49


Compensating Interest														-15,942.18
Delinquent Servicing Fees														-75,173.43
COLLECTED SERVICING FEES														4,468.88


Aggregate Advances with respect to this Distribution														1,669,307.68





ADDITIONAL COLLATERAL INFORMATION
														Total
Net Prepayment Interest Shortfall														0.00

Current LIBOR Rate														3.314380%

Next LIBOR Rate														3.460000%




Page 9 of 26
GSAMP Trust 2005-S1

Asset Backed Certificates
Asset Backed Certificates
2005-S1

July 25, 2005 Distribution
Delinquency Report

	TOTAL
					< 1 PAYMENT		1 PAYMENT		2 PAYMENTS		3+ PAYMENTS		TOTAL
	DELINQUENT		Balance				2,068,570.11		981,975.14		1,483,556.50		4,534,101.75
			% Balance				0.96%		0.45%		0.69%		2.09%
			# Loans				41		18		29		88
			% # Loans				0.95%		0.42%		0.67%		2.04%
	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		1,069,750.31		163,885.60		52,854.06		192,235.49		1,478,725.46
			% Balance		0.49%		0.08%		0.02%		0.09%		0.68%
			# Loans		25		4		2		2		33
			% # Loans		0.58%		0.09%		0.05%		0.05%		0.76%
	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		1,069,750.31		2,232,455.71		1,034,829.20		1,675,791.99		6,012,827.21
			% Balance		0.49%		1.03%		0.48%		0.77%		2.78%
			# Loans		25		45		20		31		121
			% # Loans		0.58%		1.04%		0.46%		0.72%		2.80%









Page 10 of 26
GSAMP Trust 2005-S1

Asset Backed Certificates
Asset Backed Certificates
2005-S1

July 25, 2005 Distribution
REO Report
Loan Number			Original		Stated				Current		State &

														First
&			Principal		Principal		Paid to		Note		LTV at		Original		Payment

Loan Group			Balance		Balance		Date		Rate		Origination		Term		Date




TOTAL


Page 11 of 26
GSAMP Trust 2005-S1

Asset Backed Certificates
Asset Backed Certificates
2005-S1

July 25, 2005 Distribution
Foreclosure Report
Loan Number			Original		Stated				Current		State &

														First
&			Principal		Principal		Paid to		Note		LTV at		Original		Payment

Loan Group			Balance		Balance		Date		Rate		Origination		Term		Date




TOTAL


Page 12 of 26
GSAMP Trust 2005-S1

Asset Backed Certificates
Asset Backed Certificates
2005-S1

July 25, 2005 Distribution
Prepayment Report

VOLUNTARY PREPAYMENTS
VOLUNTARY PREPAYMENTS

															Total




Current


Number of Paid in Full Loans														213
Number of Repurchased Loans														0
Total Number of Loans Prepaid in Full														213
Curtailments Amount														61,819.09
Paid in Full Balance														12,596,685.67
Repurchased Loans Balance														0.00
Total Prepayment Amount														12,658,504.76

Cumulative


Number of Paid in Full Loans														677
Number of Repurchased Loans														0
Total Number of Loans Prepaid in Full														677
Paid in Full Balance														38,516,869.70
Repurchased Loans Balance														0.00
Curtailments Amount														444,939.72
Total Prepayment Amount														38,961,809.42










Page 13 of 26
GSAMP Trust 2005-S1

Asset Backed Certificates
Asset Backed Certificates
2005-S1

July 25, 2005 Distribution

VOLUNTARY PREPAYMENTS RATES
VOLUNTARY PREPAYMENTS RATES

															Total



SMM														5.52%
3 Months Avg SMM														4.23%
12 Months Avg SMM														4.05%
Avg SMM Since Cut-off														4.05%


CPR														49.42%
3 Months Avg CPR														40.45%
12 Months Avg CPR														39.12%
Avg CPR Since Cut-off														39.12%


PSA														2,418.12%
3 Months Avg PSA Approximation														2,191.54%
12 Months Avg PSA Approximation														2,239.62%
Avg PSA Since Cut-off Approximation														2,239.62%










Page 14 of 26
GSAMP Trust 2005-S1

Asset Backed Certificates
Asset Backed Certificates
2005-S1

July 25, 2005 Distribution






PREPAYMENT CALCULATION METHODOLOGY

Single Monthly Mortality (SMM): (Voluntary partial and full prepayments + Repurchases + Liquidations )/(Beg Principal Balance - Sched Principal) Conditional Prepayment Rate (CPR): 1-((1-SMM)^12) PSA Standard Prepayment Model: CPR/(0.002min(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) Conditional Prepayment Rate (CPR): 1-((1-SMM)^12) Average PSA Approximation over period between the nth month and mth month: AvgCPRn,m/(0.002*Avg WASn,m)) Average WASn,m: (min(30,WASn)+min(30,WASn+1)+...+min(30,WASm)/(number of months in the period n,m) Weighted Average Seasoning (WAS) Dates correspond to distribution dates. Note: Prepayment rates are calculated since deal issue date and include partial and full voluntary prepayments, liquidations, and repurchases.













Page 15 of 26
GSAMP Trust 2005-S1

Asset Backed Certificates
Asset Backed Certificates
2005-S1

July 25, 2005 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

&		Loan	Principal		Prepayment			Prepayment		Note		LTV at		&		Payment

Loan Group		Status	Balance		Amount			Date		Rate		Origination		Original Term		Date

1381129 1			59,250.00		58,828.59			30-Jun-2005		9.950%		CA - 15.00%		Paid Off - 360		01-Apr-2004
			59,250.00

1455737 1			79,980.00		79,385.91			30-Jun-2005		9.400%		CA - 20.00%		Paid Off - 360		01-May-2004
1455737 1					79,385.91			30-Jun-2005		9.400%		CA - 20.00%		Paid Off - 360		01-May-2004
1513565 1			74,000.00		72,910.00			27-Jun-2005		10.200%		CA - 20.00%		Paid Off - 240		01-Aug-2004
1513565 1					72,910.00			27-Jun-2005		10.200%		CA - 20.00%		Paid Off - 240		01-Aug-2004
1514155 1			70,886.00		70,637.00			29-Jun-2005		10.750%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1514155 1					70,637.00			29-Jun-2005		10.750%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1520002 1			88,000.00		87,474.04			22-Jun-2005		10.150%		CA - 20.00%		Paid Off - 360		01-Aug-2004
1520002 1					87,474.04			22-Jun-2005		10.150%		CA - 20.00%		Paid Off - 360		01-Aug-2004
1530060 1			81,600.00		81,146.39			22-Jun-2005		10.000%		NJ - 20.00%		Paid Off - 360		01-Jul-2004
1530060 1					81,146.39			22-Jun-2005		10.000%		NJ - 20.00%		Paid Off - 360		01-Jul-2004
1536701 1			67,700.00		67,311.65			23-Jun-2005		9.850%		CA - 20.00%		Paid Off - 360		01-Jul-2004
1536701 1					67,311.65			23-Jun-2005		9.850%		CA - 20.00%		Paid Off - 360		01-Jul-2004
1568184 1			26,560.00		25,972.27			30-Jun-2005		9.270%		TN - 20.00%		Paid Off - 240		01-Aug-2004
1568184 1					25,972.27			30-Jun-2005		9.270%		TN - 20.00%		Paid Off - 240		01-Aug-2004
1579512 1			24,000.00		23,637.21			30-Jun-2005		10.000%		ND - 20.00%		Paid Off - 240		01-Aug-2004
1579512 1					23,637.21			30-Jun-2005		10.000%		ND - 20.00%		Paid Off - 240		01-Aug-2004
1582612 1			55,000.00		54,677.90			30-Jun-2005		9.750%		WA - 20.00%		Paid Off - 360		01-Jul-2004
1582612 1					54,677.90			30-Jun-2005		9.750%		WA - 20.00%		Paid Off - 360		01-Jul-2004
1584689 1			34,800.00		34,296.99			28-Jun-2005		10.350%		WA - 20.00%		Paid Off - 240		01-Aug-2004
1584689 1					34,296.99			28-Jun-2005		10.350%		WA - 20.00%		Paid Off - 240		01-Aug-2004
1588187 1			36,200.00		35,624.22			30-Jun-2005		9.700%		VA - 20.00%		Paid Off - 240		01-Aug-2004
1588187 1					35,624.22			30-Jun-2005		9.700%		VA - 20.00%		Paid Off - 240		01-Aug-2004
1588864 1			64,800.00		64,471.17			28-Jun-2005		10.000%		NJ - 20.00%		Paid Off - 360		01-Aug-2004
1588864 1					64,471.17			28-Jun-2005		10.000%		NJ - 20.00%		Paid Off - 360		01-Aug-2004
1589058 1			48,600.00		47,794.78			30-Jun-2005		9.990%		WA - 20.00%		Paid Off - 240		01-Jul-2004
1589058 1					47,794.78			30-Jun-2005		9.990%		WA - 20.00%		Paid Off - 240		01-Jul-2004
1590385 1			32,380.00		31,850.77			16-Jun-2005		10.100%		OR - 20.00%		Paid Off - 240		01-Jul-2004
1590385 1					31,850.77			16-Jun-2005		10.100%		OR - 20.00%		Paid Off - 240		01-Jul-2004
1591136 1			83,800.00		83,334.11			30-Jun-2005		10.000%		CO - 20.00%		Paid Off - 360		01-Jul-2004
1591136 1					83,334.11			30-Jun-2005		10.000%		CO - 20.00%		Paid Off - 360		01-Jul-2004
1594821 1			55,980.00		55,686.81			21-Jun-2005		9.850%		NV - 20.00%		Paid Off - 360		01-Aug-2004
1594821 1					55,686.81			21-Jun-2005		9.850%		NV - 20.00%		Paid Off - 360		01-Aug-2004
1598959 1			52,000.00		51,717.38			30-Jun-2005		10.100%		CA - 20.00%		Paid Off - 360		01-Aug-2004
1598959 1					51,717.38			30-Jun-2005		10.100%		CA - 20.00%		Paid Off - 360		01-Aug-2004
1599553 1			31,200.00		30,820.45			17-Jun-2005		11.750%		GA - 20.00%		Paid Off - 240		01-Aug-2004
1599553 1					30,820.45			17-Jun-2005		11.750%		GA - 20.00%		Paid Off - 240		01-Aug-2004
1600316 1			85,000.00		84,444.63			30-Jun-2005		10.040%		CA - 20.00%		Paid Off - 360		01-Jul-2004
1600316 1					84,444.63			30-Jun-2005		10.040%		CA - 20.00%		Paid Off - 360		01-Jul-2004
1600914 1			53,980.00		53,737.95			30-Jun-2005		11.250%		CA - 20.00%		Paid Off - 360		01-Aug-2004
1600914 1					53,737.95			30-Jun-2005		11.250%		CA - 20.00%		Paid Off - 360		01-Aug-2004
1602822 1			67,080.00		65,928.11			30-Jun-2005		9.800%		TX - 20.00%		Paid Off - 240		01-Aug-2004
1602822 1					65,928.11			30-Jun-2005		9.800%		TX - 20.00%		Paid Off - 240		01-Aug-2004
1603032 1			44,471.00		43,782.24			30-Jun-2005		9.800%		CA - 20.00%		Paid Off - 240		01-Aug-2004
1603032 1					43,782.24			30-Jun-2005		9.800%		CA - 20.00%		Paid Off - 240		01-Aug-2004
1608017 1			42,240.00		41,659.20			23-Jun-2005		10.750%		AZ - 20.00%		Paid Off - 240		01-Aug-2004
1608017 1					41,659.20			23-Jun-2005		10.750%		AZ - 20.00%		Paid Off - 240		01-Aug-2004
1610244 1			99,980.00		99,483.14			30-Jun-2005		10.100%		MA - 20.00%		Paid Off - 360		01-Aug-2004
1610244 1					99,483.14			30-Jun-2005		10.100%		MA - 20.00%		Paid Off - 360		01-Aug-2004
1612755 1			39,000.00		38,429.04			15-Jun-2005		10.250%		CA - 20.00%		Paid Off - 240		01-Aug-2004
1612755 1					38,429.04			15-Jun-2005		10.250%		CA - 20.00%		Paid Off - 240		01-Aug-2004
1614857 1			45,990.00		45,358.11			22-Jun-2005		10.750%		CA - 20.00%		Paid Off - 240		01-Aug-2004
1614857 1					45,358.11			22-Jun-2005		10.750%		CA - 20.00%		Paid Off - 240		01-Aug-2004
1614858 1			25,500.00		25,156.26			30-Jun-2005		10.900%		FL - 20.00%		Paid Off - 240		01-Aug-2004
1614858 1					25,156.26			30-Jun-2005		10.900%		FL - 20.00%		Paid Off - 240		01-Aug-2004
1615816 1			29,821.00		29,539.02			30-Jun-2005		10.000%		AZ - 20.00%		Paid Off - 240		01-Dec-2004
1615816 1					29,539.02			30-Jun-2005		10.000%		AZ - 20.00%		Paid Off - 240		01-Dec-2004
1615949 1			44,755.00		44,127.53			24-Jun-2005		10.900%		AZ - 20.00%		Paid Off - 240		01-Aug-2004
1615949 1					44,127.53			24-Jun-2005		10.900%		AZ - 20.00%		Paid Off - 240		01-Aug-2004
1619134 1			37,800.00		37,246.63			21-Jun-2005		10.250%		CA - 20.00%		Paid Off - 240		01-Aug-2004
1619134 1					37,246.63			21-Jun-2005		10.250%		CA - 20.00%		Paid Off - 240		01-Aug-2004
1621168 1			36,565.00		36,029.79			30-Jun-2005		10.250%		ME - 20.00%		Paid Off - 240		01-Aug-2004
1621168 1					36,029.79			30-Jun-2005		10.250%		ME - 20.00%		Paid Off - 240		01-Aug-2004
1623360 1			35,400.00		34,936.45			30-Jun-2005		10.350%		CA - 20.00%		Paid Off - 240		01-Sep-2004
1623360 1					34,936.45			30-Jun-2005		10.350%		CA - 20.00%		Paid Off - 240		01-Sep-2004
1623567 1			34,980.00		34,097.71			28-Jun-2005		11.050%		NJ - 20.00%		Paid Off - 180		01-Aug-2004
1623567 1					34,097.71			28-Jun-2005		11.050%		NJ - 20.00%		Paid Off - 180		01-Aug-2004
1623900 1			71,000.00		70,423.62			30-Jun-2005		9.750%		CA - 20.00%		Paid Off - 360		01-Aug-2004
1623900 1					70,423.62			30-Jun-2005		9.750%		CA - 20.00%		Paid Off - 360		01-Aug-2004
1623949 1			55,600.00		55,397.04			30-Jun-2005		11.550%		NJ - 20.00%		Paid Off - 360		01-Aug-2004
1623949 1					55,397.04			30-Jun-2005		11.550%		NJ - 20.00%		Paid Off - 360		01-Aug-2004
1624138 1			68,000.00		67,630.73			30-Jun-2005		9.990%		CA - 20.00%		Paid Off - 360		01-Aug-2004
1624138 1					67,630.73					9.990%		CA - 20.00%		Paid Off - 360


Page 16 of 26
GSAMP Trust 2005-S1

Asset Backed Certificates
Asset Backed Certificates
2005-S1

July 25, 2005 Distribution

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

&		Loan	Principal		Prepayment			Prepayment		Note		LTV at		&		Payment

Loan Group		Status	Balance		Amount			Date		Rate		Origination		Original Term		Date

1625218 1			21,000.00		20,737.86			27-Jun-2005		11.500%		GA - 20.00%		Paid Off - 240		01-Aug-2004
			21,000.00

1626773 1			73,000.00		72,637.24			30-Jun-2005		10.100%		VA - 20.00%		Paid Off - 360		01-Aug-2004
1626773 1					72,637.24			30-Jun-2005		10.100%		VA - 20.00%		Paid Off - 360		01-Aug-2004
1631525 1			85,000.00		84,611.74			27-Jun-2005		10.500%		CA - 20.00%		Paid Off - 360		01-Aug-2004
1631525 1					84,611.74			27-Jun-2005		10.500%		CA - 20.00%		Paid Off - 360		01-Aug-2004
1635859 1			33,600.00		33,195.40			22-Jun-2005		11.000%		MT - 20.00%		Paid Off - 240		01-Sep-2004
1635859 1					33,195.40			22-Jun-2005		11.000%		MT - 20.00%		Paid Off - 240		01-Sep-2004
1636016 1			58,600.00		57,686.63			24-Jun-2005		9.750%		CA - 20.00%		Paid Off - 240		01-Aug-2004
1636016 1					57,686.63			24-Jun-2005		9.750%		CA - 20.00%		Paid Off - 240		01-Aug-2004
1638682 1			66,000.00		65,682.17			30-Jun-2005		10.250%		CA - 20.00%		Paid Off - 360		01-Aug-2004
1638682 1					65,682.17			30-Jun-2005		10.250%		CA - 20.00%		Paid Off - 360		01-Aug-2004
1646308 1			41,000.00		40,335.50			27-Jun-2005		9.750%		CA - 20.00%		Paid Off - 240		01-Aug-2004
1646308 1					40,335.50			27-Jun-2005		9.750%		CA - 20.00%		Paid Off - 240		01-Aug-2004
1646914 1			74,600.00		74,350.77			23-Jun-2005		11.500%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1646914 1					74,350.77			23-Jun-2005		11.500%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1647865 1			43,000.00		42,319.99			30-Jun-2005		9.900%		CA - 20.00%		Paid Off - 240		01-Aug-2004
1647865 1					42,319.99			30-Jun-2005		9.900%		CA - 20.00%		Paid Off - 240		01-Aug-2004
1649159 1			31,100.00		30,492.71			27-Jun-2005		10.900%		ME - 20.00%		Paid Off - 240		01-Aug-2004
1649159 1					30,492.71			27-Jun-2005		10.900%		ME - 20.00%		Paid Off - 240		01-Aug-2004
1649535 1			50,000.00		49,775.58			30-Jun-2005		11.400%		CO - 20.00%		Paid Off - 360		01-Aug-2004
1649535 1					49,775.58			30-Jun-2005		11.400%		CO - 20.00%		Paid Off - 360		01-Aug-2004
1650455 1			112,271.00		111,806.85			29-Jun-2005		10.500%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1650455 1					111,806.85			29-Jun-2005		10.500%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1652408 1			54,000.00		53,758.42			21-Jun-2005		10.600%		CA - 20.00%		Paid Off - 360		01-Aug-2004
1652408 1					53,758.42			21-Jun-2005		10.600%		CA - 20.00%		Paid Off - 360		01-Aug-2004
1657653 1			59,740.00		59,458.18			30-Jun-2005		10.400%		NJ - 20.00%		Paid Off - 360		01-Aug-2004
1657653 1					59,458.18			30-Jun-2005		10.400%		NJ - 20.00%		Paid Off - 360		01-Aug-2004
1661826 1			83,000.00		82,651.67			23-Jun-2005		10.900%		CA - 20.00%		Paid Off - 360		01-Aug-2004
1661826 1					82,651.67			23-Jun-2005		10.900%		CA - 20.00%		Paid Off - 360		01-Aug-2004
1666794 1			37,000.00		36,507.67			29-Jun-2005		11.000%		CA - 20.00%		Paid Off - 240		01-Aug-2004
1666794 1					36,507.67			29-Jun-2005		11.000%		CA - 20.00%		Paid Off - 240		01-Aug-2004
1666823 1			65,000.00		64,725.00			28-Jun-2005		10.400%		HI - 20.00%		Paid Off - 360		01-Sep-2004
1666823 1					64,725.00			28-Jun-2005		10.400%		HI - 20.00%		Paid Off - 360		01-Sep-2004
1666885 1			80,000.00		79,671.41			30-Jun-2005		11.000%		CA - 20.00%		Paid Off - 360		01-Aug-2004
1666885 1					79,671.41			30-Jun-2005		11.000%		CA - 20.00%		Paid Off - 360		01-Aug-2004
1674491 1			59,000.00		58,694.22			30-Jun-2005		9.900%		CA - 20.00%		Paid Off - 360		01-Aug-2004
1674491 1					58,694.22			30-Jun-2005		9.900%		CA - 20.00%		Paid Off - 360		01-Aug-2004
1676509 1			62,000.00		61,710.74			29-Jun-2005		10.400%		NJ - 20.00%		Paid Off - 360		01-Aug-2004
1676509 1					61,710.74			29-Jun-2005		10.400%		NJ - 20.00%		Paid Off - 360		01-Aug-2004
1676861 1			40,000.00		39,492.99			15-Jun-2005		10.600%		NJ - 20.00%		Paid Off - 240		01-Sep-2004
1676861 1					39,492.99			15-Jun-2005		10.600%		NJ - 20.00%		Paid Off - 240		01-Sep-2004
1677232 1			20,600.00		20,380.67			30-Jun-2005		11.950%		IL - 20.00%		Paid Off - 240		01-Sep-2004
1677232 1					20,380.67			30-Jun-2005		11.950%		IL - 20.00%		Paid Off - 240		01-Sep-2004
1677458 1			47,800.00		46,723.70			21-Jun-2005		11.200%		CA - 20.00%		Paid Off - 180		01-Sep-2004
1677458 1					46,723.70			21-Jun-2005		11.200%		CA - 20.00%		Paid Off - 180		01-Sep-2004
1679360 1			20,600.00		20,235.67			30-Jun-2005		9.800%		TX - 20.00%		Paid Off - 240		01-Aug-2004
1679360 1					20,235.67			30-Jun-2005		9.800%		TX - 20.00%		Paid Off - 240		01-Aug-2004
1681367 1			27,000.00		26,648.92			20-Jun-2005		10.400%		FL - 20.00%		Paid Off - 240		01-Sep-2004
1681367 1					26,648.92			20-Jun-2005		10.400%		FL - 20.00%		Paid Off - 240		01-Sep-2004
1681945 1			26,700.00		25,822.39			29-Jun-2005		8.000%		TN - 20.00%		Paid Off - 180		01-Aug-2004
1681945 1					25,822.39			29-Jun-2005		8.000%		TN - 20.00%		Paid Off - 180		01-Aug-2004
1683489 1			42,000.00		41,088.54			29-Jun-2005		10.450%		NV - 20.00%		Paid Off - 240		01-Sep-2004
1683489 1					41,088.54			29-Jun-2005		10.450%		NV - 20.00%		Paid Off - 240		01-Sep-2004
1684667 1			63,410.00		63,090.93			21-Jun-2005		10.040%		CA - 17.00%		Paid Off - 360		01-Aug-2004
1684667 1					63,090.93			21-Jun-2005		10.040%		CA - 17.00%		Paid Off - 360		01-Aug-2004
1685027 1			24,200.00		23,873.14			20-Jun-2005		10.100%		OR - 20.00%		Paid Off - 240		01-Sep-2004
1685027 1					23,873.14			20-Jun-2005		10.100%		OR - 20.00%		Paid Off - 240		01-Sep-2004
1686916 1			60,990.00		60,165.40			27-Jun-2005		10.875%		CA - 20.00%		Paid Off - 240		01-Aug-2004
1686916 1					60,165.40			27-Jun-2005		10.875%		CA - 20.00%		Paid Off - 240		01-Aug-2004
1687265 1			29,200.00		28,836.94			30-Jun-2005		10.750%		CA - 20.00%		Paid Off - 240		01-Sep-2004
1687265 1					28,836.94			30-Jun-2005		10.750%		CA - 20.00%		Paid Off - 240		01-Sep-2004
1688573 1			77,000.00		75,917.84			30-Jun-2005		12.000%		CA - 20.00%		Paid Off - 240		01-Aug-2004
1688573 1					75,917.84			30-Jun-2005		12.000%		CA - 20.00%		Paid Off - 240		01-Aug-2004
1693261 1			63,000.00		62,763.29			30-Jun-2005		10.950%		GA - 20.00%		Paid Off - 360		01-Sep-2004
1693261 1					62,763.29			30-Jun-2005		10.950%		GA - 20.00%		Paid Off - 360		01-Sep-2004
1693571 1			67,000.00		66,033.94			30-Jun-2005		10.350%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1693571 1					66,033.94			30-Jun-2005		10.350%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1695065 1			25,300.00		24,971.06			20-Jun-2005		10.400%		WA - 20.00%		Paid Off - 240		01-Sep-2004
1695065 1					24,971.06			20-Jun-2005		10.400%		WA - 20.00%		Paid Off - 240		01-Sep-2004
1695885 1			91,000.00		90,577.58			17-Jun-2005		9.950%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1695885 1					90,577.58			17-Jun-2005		9.950%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1696533 1			52,000.00		51,783.65			24-Jun-2005		9.950%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1696533 1					51,783.65			24-Jun-2005		9.950%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1697339 1			95,600.00		95,165.76			28-Jun-2005		10.600%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1697339 1					95,165.76					10.600%		CA - 20.00%		Paid Off - 360


Page 17 of 26
GSAMP Trust 2005-S1

Asset Backed Certificates
Asset Backed Certificates
2005-S1

July 25, 2005 Distribution

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

&		Loan	Principal		Prepayment			Prepayment		Note		LTV at		&		Payment

Loan Group		Status	Balance		Amount			Date		Rate		Origination		Original Term		Date

1697856 1			37,200.00		36,719.46			30-Jun-2005		10.450%		CA - 15.00%		Paid Off - 240		01-Sep-2004
			37,200.00

1700588 1			37,800.00		37,322.23			27-Jun-2005		11.400%		IL - 20.00%		Paid Off - 240		01-Aug-2004
1700588 1					37,322.23			27-Jun-2005		11.400%		IL - 20.00%		Paid Off - 240		01-Aug-2004
1701057 1			40,180.00		39,749.44			21-Jun-2005		11.900%		GA - 20.00%		Paid Off - 240		01-Sep-2004
1701057 1					39,749.44			21-Jun-2005		11.900%		GA - 20.00%		Paid Off - 240		01-Sep-2004
1701342 1			79,000.00		78,541.21			30-Jun-2005		9.350%		CA - 20.00%		Paid Off - 360		01-Aug-2004
1701342 1					78,541.21			30-Jun-2005		9.350%		CA - 20.00%		Paid Off - 360		01-Aug-2004
1701659 1			41,000.00		40,466.96			30-Jun-2005		10.400%		CA - 20.00%		Paid Off - 240		01-Sep-2004
1701659 1					40,466.96			30-Jun-2005		10.400%		CA - 20.00%		Paid Off - 240		01-Sep-2004
1701664 1			80,000.00		79,724.92			17-Jun-2005		10.850%		NJ - 20.00%		Paid Off - 360		01-Oct-2004
1701664 1					79,724.92			17-Jun-2005		10.850%		NJ - 20.00%		Paid Off - 360		01-Oct-2004
1703755 1			67,000.00		66,719.98			28-Jun-2005		10.450%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1703755 1					66,719.98			28-Jun-2005		10.450%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1704654 1			74,000.00		72,353.60			23-Jun-2005		10.400%		IL - 20.00%		Paid Off - 180		01-Oct-2004
1704654 1					72,353.60			23-Jun-2005		10.400%		IL - 20.00%				01-Oct-2004
1705091 1			73,000.00		72,735.20			21-Jun-2005		10.600%		NY - 20.00%		Paid Off - 360		01-Oct-2004
1705091 1					72,735.20			21-Jun-2005		10.600%		NY - 20.00%		Paid Off - 360		01-Oct-2004
1707804 1			36,000.00		35,621.45			30-Jun-2005		11.200%		IL - 20.00%		Paid Off - 240		01-Oct-2004
1707804 1					35,621.45			30-Jun-2005		11.200%		IL - 20.00%		Paid Off - 240		01-Oct-2004
1709711 1			93,950.00		93,626.37			23-Jun-2005		12.150%		CA - 19.99%		Paid Off - 360		01-Sep-2004
1709711 1					93,626.37			23-Jun-2005		12.150%		CA - 19.99%		Paid Off - 360		01-Sep-2004
1709832 1			72,000.00		71,723.64			29-Jun-2005		10.850%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1709832 1					71,723.64			29-Jun-2005		10.850%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1709911 1			61,000.00		60,813.29			30-Jun-2005		11.900%		FL - 20.00%		Paid Off - 360		01-Sep-2004
1709911 1					60,813.29			30-Jun-2005		11.900%		FL - 20.00%		Paid Off - 360		01-Sep-2004
1710033 1			28,000.00		27,674.65			28-Jun-2005		11.490%		CA - 20.00%		Paid Off - 240		01-Sep-2004
1710033 1					27,674.65			28-Jun-2005		11.490%		CA - 20.00%		Paid Off - 240		01-Sep-2004
1711114 1			72,000.00		71,708.49			27-Jun-2005		10.600%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1711114 1					71,708.49			27-Jun-2005		10.600%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1711183 1			63,000.00		62,747.63			27-Jun-2005		10.650%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1711183 1					62,747.63			27-Jun-2005		10.650%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1713988 1			58,400.00		58,040.45			30-Jun-2005		10.850%		NJ - 20.00%		Paid Off - 360		01-Nov-2004
1713988 1					58,040.45			30-Jun-2005		10.850%		NJ - 20.00%		Paid Off - 360		01-Nov-2004
1716692 1			71,000.00		70,673.09			17-Jun-2005		9.990%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1716692 1					70,673.09			17-Jun-2005		9.990%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1718035 1			26,400.00		26,102.12			30-Jun-2005		10.650%		NV - 20.00%		Paid Off - 240		01-Oct-2004
1718035 1					26,102.12			30-Jun-2005		10.650%		NV - 20.00%		Paid Off - 240		01-Oct-2004
1720053 1			122,000.00		121,536.75			20-Jun-2005		10.900%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1720053 1					121,536.75			20-Jun-2005		10.900%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1723441 1			54,798.00		54,594.99			29-Jun-2005		10.500%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1723441 1					54,594.99			29-Jun-2005		10.500%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1726054 1			67,800.00		67,481.31			30-Jun-2005		11.000%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1726054 1					67,481.31			30-Jun-2005		11.000%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1726194 1			20,000.00		19,802.05			30-Jun-2005		10.800%		RI - 20.00%		Paid Off - 240		01-Nov-2004
1726194 1					19,802.05			30-Jun-2005		10.800%		RI - 20.00%		Paid Off - 240		01-Nov-2004
1726735 1			106,899.00		106,634.21			30-Jun-2005		11.800%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1726735 1					106,634.21			30-Jun-2005		11.800%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1726845 1			156,000.00		155,317.29			29-Jun-2005		10.500%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1726845 1					155,317.29			29-Jun-2005		10.500%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1727213 1			20,400.00		20,066.36			30-Jun-2005		11.850%		OR - 20.00%		Paid Off - 240		01-Sep-2004
1727213 1					20,066.36			30-Jun-2005		11.850%		OR - 20.00%		Paid Off - 240		01-Sep-2004
1728339 1			33,580.00		33,240.48			29-Jun-2005		11.500%		IL - 20.00%		Paid Off - 240		01-Oct-2004
1728339 1					33,240.48			29-Jun-2005		11.500%		IL - 20.00%		Paid Off - 240		01-Oct-2004
1729565 1			35,000.00		34,549.31			30-Jun-2005		10.490%		WA - 20.00%		Paid Off - 240		01-Sep-2004
1729565 1					34,549.31			30-Jun-2005		10.490%		WA - 20.00%		Paid Off - 240		01-Sep-2004
1730015 1			79,300.00		79,021.37			30-Jun-2005		11.600%		AZ - 20.00%		Paid Off - 360		01-Sep-2004
1730015 1					79,021.37			30-Jun-2005		11.600%		AZ - 20.00%		Paid Off - 360		01-Sep-2004
1733197 1			36,400.00		36,020.01			17-Jun-2005		12.100%		IL - 20.00%		Paid Off - 240		01-Sep-2004
1733197 1					36,020.01			17-Jun-2005		12.100%		IL - 20.00%		Paid Off - 240		01-Sep-2004
1737588 1			81,000.00		80,427.46			30-Jun-2005		11.300%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1737588 1					80,427.46			30-Jun-2005		11.300%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1738707 1			34,000.00		33,506.36			29-Jun-2005		9.800%		TX - 16.04%		Paid Off - 240		01-Sep-2004
1738707 1					33,506.36			29-Jun-2005		9.800%		TX - 16.04%		Paid Off - 240		01-Sep-2004
1740985 1			65,200.00		64,491.85			30-Jun-2005		11.800%		CA - 20.00%		Paid Off - 240		01-Sep-2004
1740985 1					64,491.85			30-Jun-2005		11.800%		CA - 20.00%		Paid Off - 240		01-Sep-2004
1742405 1			49,800.00		49,128.81			30-Jun-2005		11.800%		CA - 20.00%		Paid Off - 240		01-Oct-2004
1742405 1					49,128.81			30-Jun-2005		11.800%		CA - 20.00%		Paid Off - 240		01-Oct-2004
1745543 1			36,800.00		36,363.04			30-Jun-2005		10.250%		CA - 20.00%		Paid Off - 240		01-Oct-2004
1745543 1					36,363.04			30-Jun-2005		10.250%		CA - 20.00%		Paid Off - 240		01-Oct-2004
1746824 1			38,400.00		37,723.16			30-Jun-2005		11.250%		MD - 20.00%		Paid Off - 240		01-Sep-2004
1746824 1					37,723.16			30-Jun-2005		11.250%		MD - 20.00%		Paid Off - 240		01-Sep-2004
1748344 1			63,500.00		63,301.75			22-Jun-2005		11.300%		MA - 20.00%		Paid Off - 360		01-Oct-2004
1748344 1					63,301.75			22-Jun-2005		11.300%		MA - 20.00%		Paid Off - 360		01-Oct-2004
1750120 1			95,000.00		94,688.35			30-Jun-2005		11.600%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1750120 1					94,688.35					11.600%		CA - 20.00%		Paid Off - 360


Page 18 of 26
GSAMP Trust 2005-S1

Asset Backed Certificates
Asset Backed Certificates
2005-S1

July 25, 2005 Distribution

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

&		Loan	Principal		Prepayment			Prepayment		Note		LTV at		&		Payment

Loan Group		Status	Balance		Amount			Date		Rate		Origination		Original Term		Date

1751332 1			34,600.00		34,253.95			28-Jun-2005		11.650%		AZ - 20.00%		Paid Off - 240		01-Oct-2004
			34,600.00

1752105 1			27,400.00		27,028.85			16-Jun-2005		10.850%		NV - 20.00%		Paid Off - 240		01-Sep-2004
1752105 1					27,028.85			16-Jun-2005		10.850%		NV - 20.00%		Paid Off - 240		01-Sep-2004
1758632 1			49,500.00		48,934.88			30-Jun-2005		10.750%		CA - 15.00%		Paid Off - 240		01-Oct-2004
1758632 1					48,934.88			30-Jun-2005		10.750%		CA - 15.00%		Paid Off - 240		01-Oct-2004
1759296 1			72,600.00		72,319.82			30-Jun-2005		10.900%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1759296 1					72,319.82			30-Jun-2005		10.900%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1759693 1			73,850.00		73,618.96			29-Jun-2005		11.800%		IL - 19.99%		Paid Off - 360		01-Sep-2004
1759693 1					73,618.96			29-Jun-2005		11.800%		IL - 19.99%		Paid Off - 360		01-Sep-2004
1760208 1			70,000.00		69,804.58			29-Jun-2005		11.950%		NJ - 20.00%		Paid Off - 360		01-Oct-2004
1760208 1					69,804.58			29-Jun-2005		11.950%		NJ - 20.00%		Paid Off - 360		01-Oct-2004
1762035 1			62,000.00		61,837.37			24-Jun-2005		12.100%		GA - 20.00%		Paid Off - 360		01-Oct-2004
1762035 1					61,837.37			24-Jun-2005		12.100%		GA - 20.00%		Paid Off - 360		01-Oct-2004
1762222 1			83,980.00		83,575.80			30-Jun-2005		9.250%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1762222 1					83,575.80			30-Jun-2005		9.250%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1765560 1			80,000.00		79,733.63			30-Jun-2005		11.000%		NY - 20.00%		Paid Off - 360		01-Oct-2004
1765560 1					79,733.63			30-Jun-2005		11.000%		NY - 20.00%		Paid Off - 360		01-Oct-2004
1767209 1			106,000.00		105,601.66			30-Jun-2005		10.990%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1767209 1					105,601.66			30-Jun-2005		10.990%		CA - 20.00%		Paid Off - 360		01-Sep-2004
1771483 1			88,700.00		88,294.98			30-Jun-2005		9.500%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1771483 1					88,294.98			30-Jun-2005		9.500%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1773154 1			67,840.00		67,617.59			24-Jun-2005		10.500%		NY - 20.00%		Paid Off - 360		01-Nov-2004
1773154 1					67,617.59			24-Jun-2005		10.500%		NY - 20.00%		Paid Off - 360		01-Nov-2004
1774316 1			56,800.00		56,612.87			21-Jun-2005		11.050%		CO - 20.00%		Paid Off - 360		01-Oct-2004
1774316 1					56,612.87			21-Jun-2005		11.050%		CO - 20.00%		Paid Off - 360		01-Oct-2004
1775842 1			56,400.00		56,191.01			17-Jun-2005		10.500%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1775842 1					56,191.01			17-Jun-2005		10.500%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1777594 1			34,000.00		33,564.50			17-Jun-2005		9.650%		AZ - 20.00%		Paid Off - 240		01-Oct-2004
1777594 1					33,564.50			17-Jun-2005		9.650%		AZ - 20.00%		Paid Off - 240		01-Oct-2004
1777870 1			43,000.00		42,568.06			30-Jun-2005		11.550%		CA - 20.00%		Paid Off - 240		01-Oct-2004
1777870 1					42,568.06			30-Jun-2005		11.550%		CA - 20.00%		Paid Off - 240		01-Oct-2004
1779578 1			33,458.00		33,069.14			30-Jun-2005		10.500%		AZ - 20.00%		Paid Off - 240		01-Oct-2004
1779578 1					33,069.14			30-Jun-2005		10.500%		AZ - 20.00%		Paid Off - 240		01-Oct-2004
1782864 1			53,000.00		52,821.61			29-Jun-2005		10.950%		NY - 20.00%		Paid Off - 360		01-Oct-2004
1782864 1					52,821.61			29-Jun-2005		10.950%		NY - 20.00%		Paid Off - 360		01-Oct-2004
1782924 1			39,000.00		38,595.30			30-Jun-2005		11.300%		VA - 20.00%		Paid Off - 240		01-Oct-2004
1782924 1					38,595.30			30-Jun-2005		11.300%		VA - 20.00%		Paid Off - 240		01-Oct-2004
1784128 1			88,000.00		87,769.20			22-Jun-2005		12.100%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1784128 1					87,769.20			22-Jun-2005		12.100%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1784379 1			49,980.00		49,493.62			30-Jun-2005		10.850%		FL - 20.00%		Paid Off - 240		01-Nov-2004
1784379 1					49,493.62			30-Jun-2005		10.850%		FL - 20.00%		Paid Off - 240		01-Nov-2004
1784750 1			23,500.00		23,248.10			30-Jun-2005		11.050%		AZ - 20.00%		Paid Off - 240		01-Oct-2004
1784750 1					23,248.10			30-Jun-2005		11.050%		AZ - 20.00%		Paid Off - 240		01-Oct-2004
1786181 1			26,000.00		25,580.54			30-Jun-2005		12.300%		PA - 20.00%		Paid Off - 180		01-Nov-2004
1786181 1					25,580.54			30-Jun-2005		12.300%		PA - 20.00%		Paid Off - 180		01-Nov-2004
1786295 1			51,000.00		50,780.99			30-Jun-2005		9.800%		VA - 20.00%		Paid Off - 360		01-Oct-2004
1786295 1					50,780.99			30-Jun-2005		9.800%		VA - 20.00%		Paid Off - 360		01-Oct-2004
1786422 1			24,600.00		24,368.20			30-Jun-2005		11.100%		NJ - 20.00%		Paid Off - 240		01-Nov-2004
1786422 1					24,368.20			30-Jun-2005		11.100%		NJ - 20.00%		Paid Off - 240		01-Nov-2004
1787455 1			55,500.00		55,319.14			22-Jun-2005		11.100%		ME - 20.00%		Paid Off - 360		01-Oct-2004
1787455 1					55,319.14			22-Jun-2005		11.100%		ME - 20.00%		Paid Off - 360		01-Oct-2004
1795474 1			110,000.00		109,583.77			30-Jun-2005		10.400%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1795474 1					109,583.77			30-Jun-2005		10.400%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1796158 1			29,500.00		29,208.99			30-Jun-2005		10.800%		AZ - 20.00%		Paid Off - 240		01-Nov-2004
1796158 1					29,208.99			30-Jun-2005		10.800%		AZ - 20.00%		Paid Off - 240		01-Nov-2004
1798935 1			39,880.00		39,513.92			21-Jun-2005		11.300%		GA - 20.00%		Paid Off - 240		01-Nov-2004
1798935 1					39,513.92			21-Jun-2005		11.300%		GA - 20.00%		Paid Off - 240		01-Nov-2004
1799324 1			75,000.00		74,713.19			30-Jun-2005		10.350%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1799324 1					74,713.19			30-Jun-2005		10.350%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1799868 1			90,000.00		89,645.04			30-Jun-2005		10.850%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1799868 1					89,645.04			30-Jun-2005		10.850%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1800123 1			30,380.00		30,019.25			30-Jun-2005		10.250%		FL - 20.00%		Paid Off - 240		01-Oct-2004
1800123 1					30,019.25			30-Jun-2005		10.250%		FL - 20.00%		Paid Off - 240		01-Oct-2004
1800891 1			70,580.00		70,309.16			30-Jun-2005		10.350%		AZ - 20.00%		Paid Off - 360		01-Oct-2004
1800891 1					70,309.16			30-Jun-2005		10.350%		AZ - 20.00%		Paid Off - 360		01-Oct-2004
1804928 1			62,800.00		62,567.33			30-Jun-2005		10.500%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1804928 1					62,567.33			30-Jun-2005		10.500%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1807175 1			91,262.00		90,896.52			22-Jun-2005		9.550%		HI - 20.00%		Paid Off - 360		01-Nov-2004
1807175 1					90,896.52			22-Jun-2005		9.550%		HI - 20.00%		Paid Off - 360		01-Nov-2004
1809010 1			90,514.00		90,202.74			24-Jun-2005		10.850%		FL - 20.00%		Paid Off - 360		01-Oct-2004
1809010 1					90,202.74			24-Jun-2005		10.850%		FL - 20.00%		Paid Off - 360		01-Oct-2004
1811446 1			83,600.00		83,324.57			24-Jun-2005		11.050%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1811446 1					83,324.57			24-Jun-2005		11.050%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1812450 1			30,000.00		29,486.15			30-Jun-2005		11.650%		NJ - 20.00%		Paid Off - 180		01-Nov-2004
1812450 1					29,486.15					11.650%		NJ - 20.00%		Paid Off - 180


Page 19 of 26
GSAMP Trust 2005-S1

Asset Backed Certificates
Asset Backed Certificates
2005-S1

July 25, 2005 Distribution

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

&		Loan	Principal		Prepayment			Prepayment		Note		LTV at		&		Payment

Loan Group		Status	Balance		Amount			Date		Rate		Origination		Original Term		Date

1814101 1			39,000.00		38,542.76			30-Jun-2005		10.350%		CA - 20.00%		Paid Off - 240		01-Oct-2004
			39,000.00

1816874 1			38,000.00		37,595.29			16-Jun-2005		11.100%		VA - 20.00%		Paid Off - 240		01-Oct-2004
1816874 1					37,595.29			16-Jun-2005		11.100%		VA - 20.00%		Paid Off - 240		01-Oct-2004
1817128 1			32,688.00		32,333.39			30-Jun-2005		10.000%		AZ - 20.00%		Paid Off - 240		01-Nov-2004
1817128 1					32,333.39			30-Jun-2005		10.000%		AZ - 20.00%		Paid Off - 240		01-Nov-2004
1818272 1			49,980.00		49,213.86			30-Jun-2005		11.350%		RI - 20.00%		Paid Off - 240		01-Oct-2004
1818272 1					49,213.86			30-Jun-2005		11.350%		RI - 20.00%		Paid Off - 240		01-Oct-2004
1821420 1			90,000.00		89,687.33			15-Jun-2005		10.850%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1821420 1					89,687.33			15-Jun-2005		10.850%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1821425 1			98,606.00		98,266.97			30-Jun-2005		10.850%		AZ - 20.00%		Paid Off - 360		01-Oct-2004
1821425 1					98,266.97			30-Jun-2005		10.850%		AZ - 20.00%		Paid Off - 360		01-Oct-2004
1821965 1			75,980.00		75,705.58			27-Jun-2005		10.050%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1821965 1					75,705.58			27-Jun-2005		10.050%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1822750 1			27,000.00		26,759.21			23-Jun-2005		11.800%		WI - 15.00%		Paid Off - 240		01-Nov-2004
1822750 1					26,759.21			23-Jun-2005		11.800%		WI - 15.00%		Paid Off - 240		01-Nov-2004
1823565 1			47,800.00		47,210.83			17-Jun-2005		10.000%		AZ - 20.00%		Paid Off - 240		01-Oct-2004
1823565 1					47,210.83			17-Jun-2005		10.000%		AZ - 20.00%		Paid Off - 240		01-Oct-2004
1824060 1			85,800.00		85,538.94			22-Jun-2005		10.850%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1824060 1					85,538.94			22-Jun-2005		10.850%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1824978 1			84,000.00		83,727.62			30-Jun-2005		11.300%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1824978 1					83,727.62			30-Jun-2005		11.300%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1825545 1			56,400.00		56,235.59			23-Jun-2005		11.050%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1825545 1					56,235.59			23-Jun-2005		11.050%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1827092 1			44,000.00		43,528.72			16-Jun-2005		10.100%		CA - 20.00%		Paid Off - 240		01-Nov-2004
1827092 1					43,528.72			16-Jun-2005		10.100%		CA - 20.00%		Paid Off - 240		01-Nov-2004
1837439 1			119,800.00		119,311.97			16-Jun-2005		10.050%		IL - 20.00%		Paid Off - 360		01-Oct-2004
1837439 1					119,311.97			16-Jun-2005		10.050%		IL - 20.00%		Paid Off - 360		01-Oct-2004
1847911 1			28,000.00		27,753.30			30-Jun-2005		10.550%		MD - 20.00%		Paid Off - 240		01-Dec-2004
1847911 1					27,753.30			30-Jun-2005		10.550%		MD - 20.00%		Paid Off - 240		01-Dec-2004
1848183 1			69,800.00		69,571.18			27-Jun-2005		10.500%		WA - 20.00%		Paid Off - 360		01-Nov-2004
1848183 1					69,571.18			27-Jun-2005		10.500%		WA - 20.00%		Paid Off - 360		01-Nov-2004
1849287 1			59,400.00		59,237.70			23-Jun-2005		11.350%		NM - 20.00%		Paid Off - 360		01-Nov-2004
1849287 1					59,237.70			23-Jun-2005		11.350%		NM - 20.00%		Paid Off - 360		01-Nov-2004
1850914 1			42,660.00		42,182.37			30-Jun-2005		9.750%		CA - 20.00%		Paid Off - 240		01-Nov-2004
1850914 1					42,182.37			30-Jun-2005		9.750%		CA - 20.00%		Paid Off - 240		01-Nov-2004
1851094 1			48,200.00		47,660.32			30-Jun-2005		9.750%		WA - 20.00%		Paid Off - 240		01-Nov-2004
1851094 1					47,660.32			30-Jun-2005		9.750%		WA - 20.00%		Paid Off - 240		01-Nov-2004
1854060 1			54,000.00		53,797.98			28-Jun-2005		9.875%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1854060 1					53,797.98			28-Jun-2005		9.875%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1855324 1			76,000.00		75,756.01			22-Jun-2005		10.600%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1855324 1					75,756.01			22-Jun-2005		10.600%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1855444 1			117,580.00		117,206.16			28-Jun-2005		10.650%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1855444 1					117,206.16			28-Jun-2005		10.650%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1856034 1			105,400.00		105,048.23			20-Jun-2005		10.450%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1856034 1					105,048.23			20-Jun-2005		10.450%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1861673 1			57,323.60		57,182.06			30-Jun-2005		11.200%		MA - 20.00%		Paid Off - 360		01-Dec-2004
1861673 1					57,182.06			30-Jun-2005		11.200%		MA - 20.00%		Paid Off - 360		01-Dec-2004
1862269 1			37,200.00		36,821.32			30-Jun-2005		10.500%		CA - 20.00%		Paid Off - 240		01-Nov-2004
1862269 1					36,821.32			30-Jun-2005		10.500%		CA - 20.00%		Paid Off - 240		01-Nov-2004
1863379 1			95,000.00		94,674.97			17-Jun-2005		10.300%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1863379 1					94,674.97			17-Jun-2005		10.300%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1863655 1			49,980.00		49,464.02			30-Jun-2005		11.250%		MT - 20.00%		Paid Off - 240		01-Nov-2004
1863655 1					49,464.02			30-Jun-2005		11.250%		MT - 20.00%		Paid Off - 240		01-Nov-2004
1864242 1			94,980.00		94,705.80			30-Jun-2005		11.100%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1864242 1					94,705.80			30-Jun-2005		11.100%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1869165 1			51,000.00		50,838.08			30-Jun-2005		11.100%		MA - 20.00%		Paid Off - 360		01-Nov-2004
1869165 1					50,838.08			30-Jun-2005		11.100%		MA - 20.00%		Paid Off - 360		01-Nov-2004
1870896 1			80,754.00		80,459.68			22-Jun-2005		10.000%		NV - 20.00%		Paid Off - 360		01-Nov-2004
1870896 1					80,459.68			22-Jun-2005		10.000%		NV - 20.00%		Paid Off - 360		01-Nov-2004
1872749 1			53,000.00		52,808.83			16-Jun-2005		10.050%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1872749 1					52,808.83			16-Jun-2005		10.050%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1872752 1			36,800.00		36,398.28			30-Jun-2005		9.950%		AZ - 20.00%		Paid Off - 240		01-Nov-2004
1872752 1					36,398.28			30-Jun-2005		9.950%		AZ - 20.00%		Paid Off - 240		01-Nov-2004
1872862 1			30,000.00		29,708.08			23-Jun-2005		10.850%		AZ - 20.00%		Paid Off - 240		01-Nov-2004
1872862 1					29,708.08			23-Jun-2005		10.850%		AZ - 20.00%		Paid Off - 240		01-Nov-2004
1873811 1			50,000.00		49,841.41			16-Jun-2005		10.850%		CO - 20.00%		Paid Off - 360		01-Dec-2004
1873811 1					49,841.41			16-Jun-2005		10.850%		CO - 20.00%		Paid Off - 360		01-Dec-2004
1876940 1			94,000.00		93,714.00			30-Jun-2005		10.850%		CO - 20.00%		Paid Off - 360		01-Nov-2004
1876940 1					93,714.00			30-Jun-2005		10.850%		CO - 20.00%		Paid Off - 360		01-Nov-2004
1878911 1			58,000.00		57,790.83			30-Jun-2005		10.050%		WA - 20.00%		Paid Off - 360		01-Nov-2004
1878911 1					57,790.83			30-Jun-2005		10.050%		WA - 20.00%		Paid Off - 360		01-Nov-2004
1880343 1			110,000.00		109,593.97			29-Jun-2005		10.600%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1880343 1					109,593.97			29-Jun-2005		10.600%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1881225 1			52,000.00		51,831.97			30-Jun-2005		10.200%		NY - 20.00%		Paid Off - 360		01-Dec-2004
1881225 1					51,831.97					10.200%		NY - 20.00%		Paid Off - 360


Page 20 of 26
GSAMP Trust 2005-S1

Asset Backed Certificates
Asset Backed Certificates
2005-S1

July 25, 2005 Distribution

Prepayment Detail Report - Mortgage Loans Prepaid in Full During Current Distribution
Loan Number			Original							Current		State &		Type Prepayment		First
			Original							Current		State &		Type Prepayment

&		Loan	Principal		Prepayment			Prepayment		Note		LTV at		&		Payment

Loan Group		Status	Balance		Amount			Date		Rate		Origination		Original Term		Date

1886037 1			143,800.00		143,275.98			30-Jun-2005		10.000%		AZ - 20.00%		Paid Off - 360		01-Nov-2004
			143,800.00

1888907 1			79,980.00		79,649.61			28-Jun-2005		9.400%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1888907 1					79,649.61			28-Jun-2005		9.400%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1896273 1			25,280.00		25,058.64			30-Jun-2005		10.600%		CO - 20.00%		Paid Off - 240		01-Dec-2004
1896273 1					25,058.64			30-Jun-2005		10.600%		CO - 20.00%		Paid Off - 240		01-Dec-2004
1898882 1			93,500.00		93,212.06			29-Jun-2005		10.600%		MA - 20.00%		Paid Off - 360		01-Dec-2004
1898882 1					93,212.06			29-Jun-2005		10.600%		MA - 20.00%		Paid Off - 360		01-Dec-2004
1901476 1			23,701.00		23,495.98			29-Jun-2005		10.700%		AZ - 20.00%		Paid Off - 240		01-Dec-2004
1901476 1					23,495.98			29-Jun-2005		10.700%		AZ - 20.00%		Paid Off - 240		01-Dec-2004
1903219 1			77,200.00		76,984.47			23-Jun-2005		11.250%		CA - 19.99%		Paid Off - 360		01-Nov-2004
1903219 1					76,984.47			23-Jun-2005		11.250%		CA - 19.99%		Paid Off - 360		01-Nov-2004
1903565 1			20,000.00		19,832.66			30-Jun-2005		10.950%		AZ - 21.74%		Paid Off - 240		01-Dec-2004
1903565 1					19,832.66			30-Jun-2005		10.950%		AZ - 21.74%		Paid Off - 240		01-Dec-2004
1904888 1			66,000.00		65,804.18			30-Jun-2005		10.450%		CA - 20.00%		Paid Off - 360		01-Dec-2004
1904888 1					65,804.18			30-Jun-2005		10.450%		CA - 20.00%		Paid Off - 360		01-Dec-2004
1907356 1			62,500.00		62,301.90			30-Jun-2005		10.050%		NJ - 20.00%		Paid Off - 360		01-Dec-2004
1907356 1					62,301.90			30-Jun-2005		10.050%		NJ - 20.00%		Paid Off - 360		01-Dec-2004
1909478 1			91,800.00		91,399.84			30-Jun-2005		10.450%		CA - 20.00%		Paid Off - 360		01-Dec-2004
1909478 1					91,399.84			30-Jun-2005		10.450%		CA - 20.00%		Paid Off - 360		01-Dec-2004
1913059 1			78,000.00		77,793.29			30-Jun-2005		10.850%		CA - 20.00%		Paid Off - 360		01-Dec-2004
1913059 1					77,793.29			30-Jun-2005		10.850%		CA - 20.00%		Paid Off - 360		01-Dec-2004
1916844 1			53,000.00		52,828.07			29-Jun-2005		9.900%		CA - 20.00%		Paid Off - 360		01-Dec-2004
1916844 1					52,828.07			29-Jun-2005		9.900%		CA - 20.00%		Paid Off - 360		01-Dec-2004
1922051 1			86,000.00		85,795.39			30-Jun-2005		11.350%		IL - 20.00%		Paid Off - 360		01-Dec-2004
1922051 1					85,795.39			30-Jun-2005		11.350%		IL - 20.00%		Paid Off - 360		01-Dec-2004
1937068 1			45,000.00		44,465.91			29-Jun-2005		10.250%		CT - 20.00%		Paid Off - 240		01-Dec-2004
1937068 1					44,465.91			29-Jun-2005		10.250%		CT - 20.00%		Paid Off - 240		01-Dec-2004
1000001660 1			107,200.00		106,725.09			20-Jun-2005		9.650%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1000001660 1					106,725.09			20-Jun-2005		9.650%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1000006898 1			51,800.00		51,226.62			30-Jun-2005		10.800%		FL - 20.00%		Paid Off - 240		01-Oct-2004
1000006898 1					51,226.62			30-Jun-2005		10.800%		FL - 20.00%		Paid Off - 240		01-Oct-2004
1000011258 1			62,000.00		61,786.80			29-Jun-2005		10.850%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1000011258 1					61,786.80			29-Jun-2005		10.850%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1000014353 1			104,000.00		103,614.74			21-Jun-2005		10.500%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1000014353 1					103,614.74			21-Jun-2005		10.500%		CA - 20.00%		Paid Off - 360		01-Oct-2004
1000020006 1			40,700.00		40,288.47			17-Jun-2005		11.500%		AZ - 20.00%		Paid Off - 240		01-Oct-2004
1000020006 1					40,288.47			17-Jun-2005		11.500%		AZ - 20.00%		Paid Off - 240		01-Oct-2004
1000039531 1			34,000.00		33,669.16			23-Jun-2005		10.850%		CA - 20.00%		Paid Off - 240		01-Nov-2004
1000039531 1					33,669.16			23-Jun-2005		10.850%		CA - 20.00%		Paid Off - 240		01-Nov-2004
1000043768 1			103,000.00		102,643.90			23-Jun-2005		10.250%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1000043768 1					102,643.90			23-Jun-2005		10.250%		CA - 20.00%		Paid Off - 360		01-Nov-2004
1000046943 1			47,200.00		46,740.68			30-Jun-2005		10.850%		CA - 20.00%		Paid Off - 240		01-Nov-2004
1000046943 1					46,740.68			30-Jun-2005		10.850%		CA - 20.00%		Paid Off - 240		01-Nov-2004
1000052490 1			54,000.00		53,840.75			30-Jun-2005		10.350%		CA - 20.00%		Paid Off - 360		01-Dec-2004
1000052490 1					53,840.75			30-Jun-2005		10.350%		CA - 20.00%		Paid Off - 360		01-Dec-2004
1000059894 1			84,400.00		84,145.80			22-Jun-2005		10.250%		CA - 20.00%		Paid Off - 360		01-Dec-2004
1000059894 1					84,145.80			22-Jun-2005		10.250%		CA - 20.00%		Paid Off - 360		01-Dec-2004


TOTAL			12,681,432.60		12,596,685.67
TOTAL


Page 21 of 26
GSAMP Trust 2005-S1

Asset Backed Certificates
Asset Backed Certificates
2005-S1

July 25, 2005 Distribution
Realized Loss Report

COLLATERAL REALIZED LOSSES



															Total


Current
Current



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

Cumulative
Cumulative



Number of Loans Liquidated														1
Collateral Realized Loss/(Gain) Amount														17,480.81
Net Liquidation Proceeds														15,669.27










Page 22 of 26
GSAMP Trust 2005-S1

Asset Backed Certificates
Asset Backed Certificates
2005-S1

July 25, 2005 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														0.06%
12 Months Avg CDR														0.04%
Avg CDR Since Cut-off														0.04%


SDA														0.00%
3 Months Avg SDA Approximation														0.30%
12 Months Avg SDA Approximation														0.24%
Avg SDA Since Cut-off Approximation														0.24%


Loss Severity Approximation for Current Period														0.00%
3 Months Avg Loss Severity Approximation														17.58%
12 Months Avg Loss Severity Approximation														13.18%
Avg Loss Severity Approximation Since Cut-off														13.18%












Page 23 of 26
GSAMP Trust 2005-S1

Asset Backed Certificates
Asset Backed Certificates
2005-S1

July 25, 2005 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 24 of 26
GSAMP Trust 2005-S1

Asset Backed Certificates
Asset Backed Certificates
2005-S1

July 25, 2005 Distribution
Realized Loss Detail Report
Loan Number			Current		State &				Prior		Realized				Cumulative
															Cumulative
&		Loan	Note		LTV at		Original		Principal		Loss/(Gain)		Realized		Realized

Loan Group		Status	Rate		Origination		Term		Balance		Revision		Loss/(Gain)		Loss/(Gain)
Loan Group		Status	Rate		Origination		Term		Balance		Revision		Loss/(Gain)		Loss/(Gain)




TOTAL



Page 25 of 26
GSAMP Trust 2005-S1

Asset Backed Certificates
Asset Backed Certificates
2005-S1

July 25, 2005 Distribution
Triggers and Adj. Cert. Report
TRIGGER EVENTS
TRIGGER EVENTS
														Total
						Stepdown Date has occurred (0 = No, 1=Yes)								0
						Trigger Event in effect - a) or b) in effect (0=No ,								0
						a) Does a Delinquency Trigger Event Exists								0
						b) Does a Loss Trigger Event Exists (0=No,1=Yes)								0
						Balances 60+ days includes Bankruptcy and Foreclosure								3,260,596.98
						Ending Balance								216,564,191.06
						Senior Enhancement Percentage								32.9769%
						Cumulative Loss Percentage								0.0068%



ADJUSTABLE RATE CERTIFICATE INFORMATION

SPACE INTENTIONALLY LEFT BLANK



ADDITIONAL INFORMATION
ADDITIONAL INFORMATION
														Total
Net Monthly Excess Cashflow														1,254,062.03
Net Monthly Excess Cashflow Alloc to Losses														0.00
Net Monthly Excess Cashflow Alloc to Unpaid Int														0.00

Basis Risk CarryForward Amount Paid														0.00
Basis Risk CarryForward Amount Unpaid														0.000






Page 26 of 26

GSAMP Trust 2005-S1 8-K