
                                       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):  September 27, 2004
                          (Date of earliest event reported)

              GS Mortgage Securities Corporation (as Depositor under the
               Pooling and Servicing Agreement, dated as June 1, 2004,
               providing for the issuance of GSAMP Trust 2004-AR1 Mortgage
                      Pass-Through Certificates Series 2004-AR1)
                 (Exact name of registrant as specified in charter)


                                       DELAWARE
                     (State or Other Jurisdiction of Incorporation)

               333-100818-42                          13-6357101
          (Commission File Number)        (I.R.S. Employer Identification No.)


               85 Broad Street
               New York, New York                        1004
          (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
     September 27, 2004.

                                    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
                                  Corporation, Registrant


          Date:  Sep 27, 2004               By:  /s/  Katherine M. Wannenmacher
                                            Katherine M. Wannenmacher
                                            Vice President


                                   EXHIBIT INDEX

          DOCUMENT

          99.1 Monthly Remittance Statement to the Certificateholders
          dated as of September 27, 2004.


	GSAMP Trust 2004-AR1
	Mortgage Pass-Through Certificates


	September 27, 2004 Distribution


	Contents



			TABLE OF CONTENTS

								Page

			1.	Contents				1
			2.	Certificate Payment Report				2
			3.	Collection Account Report				6
			4.	Credit Enhancement Report				9
			5.	Collateral Report				10
			6.	Delinquency Report				13
			7.	REO Report				16
			8.	Prepayment Report				17
			9.	Prepayment Detail Report				20
			10.	Realized Loss Report				23
			11.	Realized Loss Detail Report				26
			12.	Triggers, Adj. Rate Cert. and Miscellaneous Report				27
			13.	Other Related Information				28




				Total Number of Pages				28



			CONTACTS

				Administrator: Valerie Delgado
				Direct Phone Number: (714)247-6273
				Address: Deutsche Bank
				1761 E. St. Andrew Place, Santa Ana, CA 92705

				Web Site: https://www.corporatetrust.db.com/invr
				Factor Information: (800) 735-7777
				Main Phone Number: (714) 247-6000



ISSUANCE INFORMATION

	Seller:		Goldman Sachs Mortgage Securities					Cut-Off Date: June 1, 2004
	Certificate Insurer(s):							Closing Date: July 12, 2004
								First Payment Date: July 26, 2004
	Servicer(s):		Countrywide Home Loans Serv


								Distribution Date: September 27, 2004
	Underwriter(s):		Goldman, Sachs & Co.					Record Date: September 24, 2004
								August 31, 2004






						Page 1 of 28					© COPYRIGHT 2004 Deutsche Bank
	GSAMP Trust 2004-AR1
	Mortgage Pass-Through Certificates
	Subsidiary Remic Series 2004-AR1
	Certificate Payment Report for September 27, 2004 Distribution


	Distribution in Dollars - Current Period
					Prior						Current
	Class	Original			Principal			Total	Realized	Deferred	Principal
Class	Type	Face Value			Balance	Interest	Principal	Distribution	Losses	Interest	Balance
					(1)	(2)	(3)	(4)=(2)+(3)	(5)	(6)	(7)=(1)-(3)-(5)+(6)

LT REMIC		1,225,440,000.00			1,228,672,265.68	7,026,281.57	31,287,080.66	38,313,362.23	-	-	1,197,385,185.02


Total		1,225,440,000.00			1,228,672,265.68	7,026,281.57	31,287,080.66	38,313,362.23	-	-	1,197,385,185.02


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

LT REMIC	08/25/04	09/26/04		-		1,225,440,000.00	1,002.637637	5.733681	25.531304	31.264984	977.106333


							Page 2 of 28				© COPYRIGHT 2004 Deutsche Bank
	GSAMP Trust 2004-AR1
	Mortgage Pass-Through Certificates
	Subsidiary Remic Series 2004-AR1
	Certificate Payment Report for September 27, 2004 Distribution


	Distribution in Dollars - to Date
											Current
	Original				Unscheduled	Scheduled	Total	Total	Realized	Deferred	Principal
Class	Face Value		Interest		Principal	Principal	Principal	Distribution	Losses	Interest	Balance
	(1)		(2)		(3)	(4)	(5)=(3)+(4)	(6)=(2)+(5)	(7)	(8)	(9)=(1)-(5)-(7)+(8)

LT REMIC	1,225,440,000.00		20,578,086.22		56,083,706.30	3,393,427.48	59,477,133.78	80,055,220.00	-	-	1,197,385,185.02


Total	1,225,440,000.00		20,578,086.22		56,083,706.30	3,393,427.48	59,477,133.78	80,055,220.00	-	-	1,197,385,185.02


	Interest Detail
	Pass-	Prior Principal				Non-	Prior	Unscheduled		Paid or	Current
	Through	(with Notional)			Accrued	Supported	Unpaid	Interest	Optimal	Deferred	Unpaid
Class	Rate	Balance			Interest	Interest SF	Interest	Adjustments	Interest	Interest	Interest
					(1)	(2)	(3)	(4)	(5)=(1)-(2)+(3)+(4)	(6)	(7)=(5)-(6)

LT REMIC	6.36228%	1,228,672,265.68			2,368,466.31	-	-	-	2,368,466.31	7,026,281.57	-


Total		1,228,672,265.68			2,368,466.31	-	-	-	2,368,466.31	7,026,281.57	-


							Page 3 of 28				© COPYRIGHT 2004 Deutsche Bank
	GSAMP Trust 2004-AR1
	Mortgage Pass-Through Certificates
	Master Remic Series 2004-AR1
	Certificate Payment Report for September 27, 2004 Distribution


	Distribution in Dollars - Current Period
					Prior						Current
	Class	Original			Principal			Total	Realized	Deferred	Principal
Class	Type	Face Value			Balance	Interest	Principal	Distribution	Losses	Interest	Balance
					(1)	(2)	(3)	(4)=(2)+(3)	(5)	(6)	(7)=(1)-(3)-(5)+(6)

A-1A	FLT, STEP,	639,127,000.00			618,954,405.12	1,086,522.88	21,417,507.61	22,504,030.49	-	-	597,536,897.51
A-1B	FLT, STEP,	27,023,000.00			26,170,080.26	51,936.71	905,556.03	957,492.74	-	-	25,264,524.23
A-2A	FLT, STEP,	218,483,000.00			212,644,796.36	359,635.51	7,305,329.56	7,664,965.07	-	-	205,339,466.80
A-2B	FLT, STEP,	45,774,000.00			45,774,000.00	92,940.29	-	92,940.29	-	-	45,774,000.00
A-2C	FLT, STEP,	60,000,000.00			58,674,425.97	106,763.01	1,658,687.46	1,765,450.47	-	-	57,015,738.51
M-1	MEZ, STEP,	52,160,000.00			52,160,000.00	108,297.20	-	108,297.20	-	-	52,160,000.00
M-2	MEZ, STEP,	31,421,000.00			31,421,000.00	66,677.98	-	66,677.98	-	-	31,421,000.00
M-3	MEZ, STEP,	21,367,000.00			21,367,000.00	46,321.88	-	46,321.88	-	-	21,367,000.00
M-4	MEZ, STEP,	15,711,000.00			15,711,000.00	41,261.01	-	41,261.01	-	-	15,711,000.00
M-5	MEZ, STEP,	15,711,000.00			15,711,000.00	44,141.36	-	44,141.36	-	-	15,711,000.00
M-6	MEZ, STEP,	25,137,000.00			25,137,000.00	72,928.72	-	72,928.72	-	-	25,137,000.00
B-1	SUB, STEP,	16,339,000.00			16,339,000.00	56,389.97	-	56,389.97	-	-	16,339,000.00
B-2	SUB, STEP,	16,339,000.00			16,339,000.00	57,887.72	-	57,887.72	-	-	16,339,000.00
B-3	SUB, STEP,	12,569,000.00			12,569,000.00	58,932.90	-	58,932.90	-	-	12,569,000.00
B-4	SUB, STEP,	15,711,000.00			15,711,000.00	65,462.50	-	65,462.50	-	-	15,711,000.00
B-5	SUB, STEP,	12,568,000.00			12,568,000.00	52,366.67	-	52,366.67	-	-	12,568,000.00
X	OC,IO	31,422,318.80			31,421,557.97	4,109,728.71	-	4,109,728.71	-	-	31,421,557.97
P		-			-	548,086.55	-	548,086.55	-	-	-
R	R	-			-	-	-	-	-	-	-



Total		1,256,862,318.80			1,228,672,265.68	7,026,281.57	31,287,080.66	38,313,362.23	-	-	1,197,385,185.02


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

A-1A	08/25/04	09/26/04		A-Act/360	36228F6J0	639,127,000.00	968.437267	1.700011	33.510566	35.210577	934.926701
A-1B	08/25/04	09/26/04		A-Act/360	36228F6K7	27,023,000.00	968.437267	1.921945	33.510566	35.432511	934.926701
A-2A	08/25/04	09/26/04		A-Act/360	36228F6L5	218,483,000.00	973.278454	1.646057	33.436604	35.082661	939.841849
A-2B	08/25/04	09/26/04		A-Act/360	36228F6M3	45,774,000.00	1,000.000000	2.030417	-	2.030417	1,000.000000
A-2C	08/25/04	09/26/04		A-Act/360	36228F6N1	60,000,000.00	977.907100	1.779384	27.644791	29.424175	950.262309
M-1	08/25/04	09/26/04		A-Act/360	36228F6P6	52,160,000.00	1,000.000000	2.076250	-	2.076250	1,000.000000
M-2	08/25/04	09/26/04		A-Act/360	36228F6Q4	31,421,000.00	1,000.000000	2.122083	-	2.122083	1,000.000000
M-3	08/25/04	09/26/04		A-Act/360	36228F6R2	21,367,000.00	1,000.000000	2.167917	-	2.167917	1,000.000000
M-4	08/25/04	09/26/04		A-Act/360	36228F6S0	15,711,000.00	1,000.000000	2.626250	-	2.626250	1,000.000000
M-5	08/25/04	09/26/04		A-Act/360	36228F6T8	15,711,000.00	1,000.000000	2.809583	-	2.809583	1,000.000000
M-6	08/25/04	09/26/04		A-Act/360	36228F6U5	25,137,000.00	1,000.000000	2.901250	-	2.901250	1,000.000000
B-1	08/25/04	09/26/04		A-Act/360	36228F6V3	16,339,000.00	1,000.000000	3.451250	-	3.451250	1,000.000000
B-2	08/25/04	09/26/04		A-Act/360	36228F6W1	16,339,000.00	1,000.000000	3.542917	-	3.542917	1,000.000000
B-3	08/25/04	09/26/04		A-Act/360	36228F6X9	12,569,000.00	1,000.000000	4.688750	-	4.688750	1,000.000000
B-4	08/25/04	09/26/04		F-30/360	36228F6Y7	15,711,000.00	1,000.000000	4.166667	-	4.166667	1,000.000000
B-5	08/25/04	09/26/04		F-30/360	36228F6Z4	12,568,000.00	1,000.000000	4.166667	-	4.166667	1,000.000000
X	08/25/04	09/26/04		A-Act/360	36228F7A8	31,422,318.80	999.975787	130.790116	-	130.790116	999.975787
P	08/25/04	09/26/04		-	36228F7B6	-	-	-	-	-	-
R	08/25/04	09/26/04		-	36228F7C4	-	-	-	-	-	-


							Page 4 of 28				© COPYRIGHT 2004 Deutsche Bank
	GSAMP Trust 2004-AR1
	Mortgage Pass-Through Certificates
	Master Remic Series 2004-AR1
	Certificate Payment Report for September 27, 2004 Distribution


	Distribution in Dollars - to Date
											Current
	Original				Unscheduled	Scheduled	Total	Total	Realized	Deferred	Principal
Class	Face Value		Interest		Principal	Principal	Principal	Distribution	Losses	Interest	Balance
	(1)		(2)		(3)	(4)	(5)=(3)+(4)	(6)=(2)+(5)	(7)	(8)	(9)=(1)-(5)-(7)+(8)

A-1A	639,127,000.00		2,430,842.66		39,280,121.79	2,309,980.70	41,590,102.49	44,020,945.15	-	-	597,536,897.51
A-1B	27,023,000.00		117,026.37		1,660,807.21	97,668.56	1,758,475.77	1,875,502.14	-	-	25,264,524.23
A-2A	218,483,000.00		800,420.46		12,340,781.85	802,751.35	13,143,533.20	13,943,953.66	-	-	205,339,466.80
A-2B	45,774,000.00		206,083.22		-	-	-	206,083.22	-	-	45,774,000.00
A-2C	60,000,000.00		238,091.40		2,801,995.45	182,266.04	2,984,261.49	3,222,352.89	-	-	57,015,738.51
M-1	52,160,000.00		240,412.42		-	-	-	240,412.42	-	-	52,160,000.00
M-2	31,421,000.00		148,183.90		-	-	-	148,183.90	-	-	31,421,000.00
M-3	21,367,000.00		103,053.53		-	-	-	103,053.53	-	-	21,367,000.00
M-4	15,711,000.00		92,576.55		-	-	-	92,576.55	-	-	15,711,000.00
M-5	15,711,000.00		99,297.37		-	-	-	99,297.37	-	-	15,711,000.00
M-6	25,137,000.00		164,248.52		-	-	-	164,248.52	-	-	25,137,000.00
B-1	16,339,000.00		127,729.59		-	-	-	127,729.59	-	-	16,339,000.00
B-2	16,339,000.00		131,224.33		-	-	-	131,224.33	-	-	16,339,000.00
B-3	12,569,000.00		134,550.74		-	-	-	134,550.74	-	-	12,569,000.00
B-4	15,711,000.00		196,387.50		-	-	-	196,387.50	-	-	15,711,000.00
B-5	12,568,000.00		157,100.01		-	-	-	157,100.01	-	-	12,568,000.00
X	31,422,318.80		14,356,297.94		-	760.83	760.83	14,357,058.77	-	-	31,421,557.97
P	-		834,559.71		-	-	-	834,559.71	-	-	-
R	-		-		-	-	-	-	-	-	-



Total	1,256,862,318.80		20,578,086.22		56,083,706.30	3,393,427.48	59,477,133.78	80,055,220.00	-	-	1,197,385,185.02


	Interest Detail
	Pass-	Prior Principal				Non-	Prior	Unscheduled		Paid or	Current
	Through	(with Notional)			Accrued	Supported	Unpaid	Interest	Optimal	Deferred	Unpaid
Class	Rate	Balance			Interest	Interest SF	Interest	Adjustments	Interest	Interest	Interest
					(1)	(2)	(3)	(4)	(5)=(1)-(2)+(3)+(4)	(6)	(7)=(5)-(6)

A-1A	1.91500%	618,954,405.12			1,086,522.88	-	-	-	1,086,522.88	1,086,522.88	-
A-1B	2.16500%	26,170,080.26			51,936.71	-	-	-	51,936.71	51,936.71	-
A-2A	1.84500%	212,644,796.36			359,635.51	-	-	-	359,635.51	359,635.51	-
A-2B	2.21500%	45,774,000.00			92,940.29	-	-	-	92,940.29	92,940.29	-
A-2C	1.98500%	58,674,425.97			106,763.01	-	-	-	106,763.01	106,763.01	-
M-1	2.26500%	52,160,000.00			108,297.20	-	-	-	108,297.20	108,297.20	-
M-2	2.31500%	31,421,000.00			66,677.98	-	-	-	66,677.98	66,677.98	-
M-3	2.36500%	21,367,000.00			46,321.88	-	-	-	46,321.88	46,321.88	-
M-4	2.86500%	15,711,000.00			41,261.01	-	-	-	41,261.01	41,261.01	-
M-5	3.06500%	15,711,000.00			44,141.36	-	-	-	44,141.36	44,141.36	-
M-6	3.16500%	25,137,000.00			72,928.72	-	-	-	72,928.72	72,928.72	-
B-1	3.76500%	16,339,000.00			56,389.97	-	-	-	56,389.97	56,389.97	-
B-2	3.86500%	16,339,000.00			57,887.72	-	-	-	57,887.72	57,887.72	-
B-3	5.11500%	12,569,000.00			58,932.90	-	-	-	58,932.90	58,932.90	-
B-4	5.00000%	15,711,000.00			65,462.50	-	-	-	65,462.50	65,462.50	-
B-5	5.00000%	12,568,000.00			52,366.67	-	-	-	52,366.67	52,366.67	-
X	4.11917%	31,421,557.97			4,109,728.71	-	-	-	4,109,728.71	4,109,728.71	-
P		-			-	-	-	-	548,086.55	548,086.55	-
R		-			-	-	-	-	-	-	-



Total		1,228,672,265.68			6,478,195.02	-	-	-	7,026,281.57	7,026,281.57	-


							Page 5 of 28				© COPYRIGHT 2004 Deutsche Bank
	GSAMP Trust 2004-AR1
	Mortgage Pass-Through Certificates
	Series 2004-AR1
	Collection Account Report for September 27, 2004 Distribution


	Collection Account Report


SUMMARY						GROUP 2 - NON-FANNIE	GROUP 1 - FANNIE	TOTAL

	Principal Collections					8,964,017.02	22,323,063.64	31,287,080.66
	Principal Withdrawls					0.00	0.00	0.00
	Principal Other Accounts					0.00	0.00	0.00
	TOTAL NET PRINCIPAL					8,964,017.02	22,323,063.64	31,287,080.66

	Interest Collections					2,151,282.55	4,437,513.96	6,588,796.51
	Interest Withdrawals					0.00	0.00	0.00
	Interest Fees					(22,304.67)	(88,296.82)	(110,601.49)
	Interest Other Accounts					175,982.65	372,103.90	548,086.55
	TOTAL NET INTEREST					2,304,960.53	4,721,321.04	7,026,281.57

	TOTAL AVAILABLE FUNDS FOR DISTRIBUTION					11,268,977.55	27,044,384.68	38,313,362.23


PRINCIPAL - COLLECTIONS						GROUP 2 - NON-FANNIE	GROUP 1 - FANNIE	TOTAL

	Scheduled Principal Received					371,883.02	741,071.26	1,112,954.28
	Curtailments					118,525.90	13,089.58	131,615.48
	Prepayments in Full					8,473,608.10	21,568,902.80	30,042,510.90
	Repurchased Principal Amounts					0.00	0.00	0.00
	Liquidations					0.00	0.00	0.00
	Insurance Principal					0.00	0.00	0.00
	Other Principal					0.00	0.00	0.00
	Current Realized Loss of Principal					0.00	0.00	0.00
	Supplemental Realized Loss\Gain of Principal					0.00	0.00	0.00
	Subtitution Shortfall Principal					0.00	0.00	0.00
	Loan Adjustment Principal					0.00	0.00	0.00
	Delinquent Principal					(328,157.11)	(642,237.24)	(970,394.35)
	Advanced Principal					328,157.11	642,237.24	970,394.35

	TOTAL PRINCIPAL COLLECTED					8,964,017.02	22,323,063.64	31,287,080.66


				Page 6 of 28				© COPYRIGHT 2004 Deutsche Bank
	GSAMP Trust 2004-AR1
	Mortgage Pass-Through Certificates
	Series 2004-AR1
	Collection Account Report for September 27, 2004 Distribution


	Collection Account Report


PRINCIPAL - WITHDRAWALS						GROUP 2 - NON-FANNIE	GROUP 1 - FANNIE	TOTAL
SPACE INTENTIONALLY LEFT BLANK


PRINCIPAL - OTHER ACCOUNTS						GROUP 2 - NON-FANNIE	GROUP 1 - FANNIE	TOTAL
SPACE INTENTIONALLY LEFT BLANK


INTEREST - COLLECTIONS						GROUP 2 - NON-FANNIE	GROUP 1 - FANNIE	TOTAL

	Scheduled Interest					2,298,122.46	4,730,172.78	7,028,295.24
	Repurchased Interest					0.00	0.00	0.00
	Liquidation Interest					0.00	0.00	0.00
	Insurance Interest					0.00	0.00	0.00
	Other Interest					0.00	0.00	0.00
	Prepayment Interest Shortfalls					(23,943.10)	(59,484.75)	(83,427.85)
	Realized Losses of Interest					0.00	0.00	0.00
	Compensating Interest					23,943.10	59,484.75	83,427.85
	Relief Act Interest Shortfalls					0.00	0.00	0.00
	Substitution Shortfall Interest					0.00	0.00	0.00
	Loan Adjustment Interest					0.00	0.00	0.00
	Delinquent Interest					(2,009,103.85)	(4,036,729.78)	(6,045,833.63)
	Interest Advanced					1,862,263.94	3,744,070.96	5,606,334.90

	TOTAL INTEREST COLLECTED					2,151,282.55	4,437,513.96	6,588,796.51


				Page 7 of 28				© COPYRIGHT 2004 Deutsche Bank
	GSAMP Trust 2004-AR1
	Mortgage Pass-Through Certificates
	Series 2004-AR1
	Collection Account Report for September 27, 2004 Distribution


	Collection Account Report


INTEREST - WITHDRAWALS						GROUP 2 - NON-FANNIE	GROUP 1 - FANNIE	TOTAL

	Trust Fund Expenses					0.00	0.00	0.00
	Non Recoverable Advances					0.00	0.00	0.00
	Reimbursements to Master Servicer					0.00	0.00	0.00

	TOTAL INTEREST WITHDRAWALS					0.00	0.00	0.00


INTEREST - OTHER ACCOUNTS						GROUP 2 - NON-FANNIE	GROUP 1 - FANNIE	TOTAL

	Prepayment Charges					175,982.65	372,103.90	548,086.55
	Interest Cap Payments					0.00	0.00	0.00

	TOTAL INTEREST OTHER ACCOUNTS					175,982.65	372,103.90	548,086.55


INTEREST - FEES						GROUP 2 - NON-FANNIE	GROUP 1 - FANNIE	TOTAL

	Current Servicing Fees					21,630.79	50,817.25	72,448.04
	Trustee Fee					673.88	1,373.90	2,047.78
	Class A-1A Premium Fee						36,105.67	36,105.67

	TOTAL INTEREST OTHER FEES					22,304.67	88,296.82	110,601.49


				Page 8 of 28				© COPYRIGHT 2004 Deutsche Bank
	GSAMP Trust 2004-AR1
	Mortgage Pass-Through Certificates
	Series 2004-AR1
	Credit Enhancement Report for September 27, 2004 Distribution


	Credit Enhancement Report


ACCOUNTS						GROUP 2 - NON-FANNIE	GROUP 1 - FANNIE	TOTAL

	Beginning Excess Reserve Fund Account Balance							0.00
	Basis Risk Carryover Deposit							0.00
	Interest Cap Payment Deposit							0.00
	Basis Risk Carryover Amount Paid							0.00
	Interest Cap Pmt Amount Released to Class X Interest							0.00
	Ending Excess Reserve Fund Account Balance							0.00


INSURANCE						GROUP 2 - NON-FANNIE	GROUP 1 - FANNIE	TOTAL
SPACE INTENTIONALLY LEFT BLANK


STRUCTURAL FEATURES						GROUP 2 - NON-FANNIE	GROUP 1 - FANNIE	TOTAL

	Overcollateralized Amount - Beginning							31,421,557.97
	Overcollateralized Amount - Reduction							0.00
	Overcollateralized Amount - Increase							0.00

	Overcollateralized Amount - Ending							31,421,557.97

	Specified Overcollateralized Amount							31,421,557.97

	Overcollateralized Remaining Deficiency Amount							0.00


				Page 9 of 28				© COPYRIGHT 2004 Deutsche Bank
	GSAMP Trust 2004-AR1
	Mortgage Pass-Through Certificates
	Series 2004-AR1
	Collateral Report for September 27, 2004 Distribution


	Collateral Report


COLLATERAL						GROUP 2 - NON-FANNIE	GROUP 1 - FANNIE	TOTAL
	Loan Count:
	*Original*					1848	4575	6423
	Prior					1,827	4,473	6,300
	Prefunding					-	-	-
	Scheduled Paid Offs					-	-	-
	Full Voluntary Prepayments					(37)	(102)	(139)
	Repurchases					-	-	-
	Liquidations					-	-	-
	Current					1,790	4,371	6,161

	*Principal Balance:*
	Original					411,493,729.00	845,368,589.80	1,256,862,318.80
	Prior					404,329,697.80	824,342,567.88	1,228,672,265.68
	Prefunding					-	-	-
	Scheduled Principal					(371,883.02)	(741,071.26)	(1,112,954.28)
	Partial and Full Voluntary Prepayments					(8,592,134.00)	(21,581,992.38)	(30,174,126.38)
	Repurchases					-	-	-
	Liquidations					-	-	-
	Current					395,365,680.78	802,019,504.24	1,197,385,185.02

PREFUNDING						GROUP 2 - NON-FANNIE	GROUP 1 - FANNIE	TOTAL
SPACE INTENTIONALLY LEFT BLANK


	Group 1 - Fannie
	Group 2 - Non-Fannie
Current Prin Balance by Groups (in millions of dollars)					Total Current Principal Balance (in millions of dollars)


				Page 10 of 28				© COPYRIGHT 2004 Deutsche Bank
	GSAMP Trust 2004-AR1
	Mortgage Pass-Through Certificates
	Series 2004-AR1
	Collateral Report for September 27, 2004 Distribution


	Collateral Report


CHARACTERISTICS						GROUP 2 - NON-FANNIE	GROUP 1 - FANNIE	TOTAL

	Weighted Average Coupon Original					6.828002%	6.895059%	6.873104%
	Weighted Average Coupon Prior					6.828224%	6.895196%	6.873270%
	Weighted Average Coupon Current					6.820540%	6.885738%	6.864283%
	Weighted Average Months to Maturity Original					353	353	353
	Weighted Average Months to Maturity Prior					352	352	352
	Weighted Average Months to Maturity Current					351	351	351
	Weighted Avg Remaining Amortization Term Original					353	352	352
	Weighted Avg Remaining Amortization Term Prior					352	352	352
	Weighted Avg Remaining Amortization Term Current					351	351	351
	Weighted Average Seasoning Original					4.03	4.19	4.14
	Weighted Average Seasoning Prior					4.02	4.18	4.13
	Weighted Average Seasoning Current					5.03	5.17	5.12

Note: Original information refers to deal issue.


	Group 1 - Fannie
	Group 2 - Non-Fannie
WAC by Groups					Total WAC


WARAT by Groups					Total WARAT


Note: Dates correspond to distribution dates.
				Page 11 of 28				© COPYRIGHT 2004 Deutsche Bank
	GSAMP Trust 2004-AR1
	Mortgage Pass-Through Certificates
	Series 2004-AR1
	Collateral Report for September 27, 2004 Distribution


	Collateral Report


ARM CHARACTERISTICS						GROUP 2 - NON-FANNIE	GROUP 1 - FANNIE	TOTAL

	Weighted Average Margin Original					3.588%	3.527%
	Weighted Average Margin Prior					3.589%	3.528%
	Weighted Average Margin Current					3.584%	3.504%
	Weighted Average Max Rate Original					8.314%	8.402%
	Weighted Average Max Rate Prior					8.316%	8.403%
	Weighted Average Max Rate Current					8.289%	8.335%
	Weighted Average Min Rate Original					4.526%	4.550%
	Weighted Average Min Rate Prior					4.527%	4.550%
	Weighted Average Min Rate Current					4.511%	4.511%
	Weighted Average Cap Up Original					0.631%	0.642%
	Weighted Average Cap Up Prior					0.631%	0.642%
	Weighted Average Cap Up Current					0.630%	0.637%
	Weighted Average Cap Down Original					1.263%	1.284%
	Weighted Average Cap Down Prior					1.263%	1.284%
	Weighted Average Cap Down Current					1.259%	1.275%

Note: Original information refers to deal issue.

SERVICING FEES / ADVANCES						GROUP 2 - NON-FANNIE	GROUP 1 - FANNIE	TOTAL

	Current Servicing Fees					21,630.79	50,817.25	72,448.04
	Delinquent Servicing Fees					146,839.91	292,658.82	439,498.73
	TOTAL SERVICING FEES					168,470.70	343,476.07	511,946.77


	Compensating Interest					(23,943.10)	(59,484.75)	(83,427.85)
	Delinquent Servicing Fees					(146,839.91)	(292,658.82)	(439,498.73)

	COLLECTED SERVICING FEES					(2,312.31)	(8,667.50)	(10,979.81)

	Aggregate Advances with respect to this Distribution					2,190,421.05	4,386,308.20	6,576,729.25
	Aggregate Outstanding Advances as reported by Servicer					2,190,421.05	4,386,308.20	6,576,729.25


ADDITIONAL COLLATERAL INFORMATION						GROUP 2 - NON-FANNIE	GROUP 1 - FANNIE	TOTAL

	Prepayment Interest Shortfall					(23,943.10)	(59,484.75)	(83,427.85)
	Compensating Interest					23,943.10	59,484.75	83,427.85
	NET PREPAYMENT INTEREST SHORTFALL					0.00	0.00	0.00

	Net Monthly Excess Cash Flow							4,109,728.71
	Net Monthly Excess Cash Flow alloc to Realized Losses							0.00
	Net Monthly Excess Cash Flow alloc to Unpaid Interest							0.00

	Current LIBOR							1.615000%
	Next LIBOR							1.840000%


				Page 12 of 28				© COPYRIGHT 2004 Deutsche Bank
	GSAMP Trust 2004-AR1
	Mortgage Pass-Through Certificates
	Series 2004-AR1
	Delinquency Report for September 27, 2004 Distribution


	Delinquency Report - Total


				<1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT		Balance			27,425,040.92	6,644,592.17	961,303.84	35,030,936.93
		% Balance			2.29%	0.55%	0.08%	2.93%
		# Loans			153	42	7	202
		% # Loans			2.48%	0.68%	0.11%	3.28%
FORECLOSURE		Balance		-	-	-	-	-
		% Balance		0.00%	0.00%	0.00%	0.00%	0.00%
		# Loans		-	-	-	-	-
		% # Loans		0.00%	0.00%	0.00%	0.00%	0.00%
BANKRUPTCY		Balance		763,349.77	540,888.41	-	-	1,304,238.18
		% Balance		0.06%	0.05%	0.00%	0.00%	0.11%
		# Loans		4	3	-	-	7
		% # Loans		0.06%	0.05%	0.00%	0.00%	0.11%
REO		Balance		-	-	-	-	-
		% Balance		0.00%	0.00%	0.00%	0.00%	0.00%
		# Loans		-	-	-	-	-
		% # Loans		0.00%	0.00%	0.00%	0.00%	0.00%

TOTAL		Balance		763,349.77	27,965,929.33	6,644,592.17	961,303.84	36,335,175.11
		% Balance		0.06%	2.34%	0.55%	0.08%	3.03%
		# Loans		4	156	42	7	209
		% # Loans		0.06%	2.53%	0.68%	0.11%	3.39%
Note: <1 Payment = 0-30days, 1 Payment = 31-60days, 2 Payments = 61-90days, 3+ Payments = 91+
								6 Months Moving Average
1 or 2 Payments Delinquent					3 or More Payments Delinquent


Total Foreclosure					Total Bankruptcy and REO


Note: Dates correspond to distribution dates.
				Page 13 of 28				© COPYRIGHT 2004 Deutsche Bank
	GSAMP Trust 2004-AR1
	Mortgage Pass-Through Certificates
	Series 2004-AR1
	Delinquency Report for September 27, 2004 Distribution


	Delinquency Report - Group 1 - Fannie Group


				<1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT		Balance			18,091,513.44	3,906,498.49	372,089.23	22,370,101.16
		% Balance			2.26%	0.49%	0.05%	2.79%
		# Loans			97	25	3	125
		% # Loans			2.22%	0.57%	0.07%	2.86%
FORECLOSURE		Balance		-	-	-	-	-
		% Balance		0.00%	0.00%	0.00%	0.00%	0.00%
		# Loans		-	-	-	-	-
		% # Loans		0.00%	0.00%	0.00%	0.00%	0.00%
BANKRUPTCY		Balance		198,783.73	429,707.77	-	-	628,491.50
		% Balance		0.02%	0.05%	0.00%	0.00%	0.08%
		# Loans		2	2	-	-	4
		% # Loans		0.05%	0.05%	0.00%	0.00%	0.09%
REO		Balance		-	-	-	-	-
		% Balance		0.00%	0.00%	0.00%	0.00%	0.00%
		# Loans		-	-	-	-	-
		% # Loans		0.00%	0.00%	0.00%	0.00%	0.00%

TOTAL		Balance		198,783.73	18,521,221.21	3,906,498.49	372,089.23	22,998,592.66
		% Balance		0.02%	2.31%	0.49%	0.05%	2.87%
		# Loans		2	99	25	3	129
		% # Loans		0.05%	2.26%	0.57%	0.07%	2.95%
Note: <1 Payment = 0-30days, 1 Payment = 31-60days, 2 Payments = 61-90days, 3+ Payments = 91+
								6 Months Moving Average
1 or 2 Payments Delinquent					3 or More Payments Delinquent


Total Foreclosure					Total Bankruptcy and REO


Note: Dates correspond to distribution dates.
				Page 14 of 28				© COPYRIGHT 2004 Deutsche Bank
	GSAMP Trust 2004-AR1
	Mortgage Pass-Through Certificates
	Series 2004-AR1
	Delinquency Report for September 27, 2004 Distribution


	Delinquency Report - Group 2 - Non-Fannie Group


				<1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT		Balance			9,333,527.48	2,738,093.68	589,214.61	12,660,835.77
		% Balance			2.36%	0.69%	0.15%	3.20%
		# Loans			56	17	4	77
		% # Loans			3.13%	0.95%	0.22%	4.30%
FORECLOSURE		Balance		-	-	-	-	-
		% Balance		0.00%	0.00%	0.00%	0.00%	0.00%
		# Loans		-	-	-	-	-
		% # Loans		0.00%	0.00%	0.00%	0.00%	0.00%
BANKRUPTCY		Balance		564,566.04	111,180.64	-	-	675,746.68
		% Balance		0.14%	0.03%	0.00%	0.00%	0.17%
		# Loans		2	1	-	-	3
		% # Loans		0.11%	0.06%	0.00%	0.00%	0.17%
REO		Balance		-	-	-	-	-
		% Balance		0.00%	0.00%	0.00%	0.00%	0.00%
		# Loans		-	-	-	-	-
		% # Loans		0.00%	0.00%	0.00%	0.00%	0.00%

TOTAL		Balance		564,566.04	9,444,708.12	2,738,093.68	589,214.61	13,336,582.45
		% Balance		0.14%	2.39%	0.69%	0.15%	3.37%
		# Loans		2	57	17	4	80
		% # Loans		0.11%	3.18%	0.95%	0.22%	4.47%
Note: <1 Payment = 0-30days, 1 Payment = 31-60days, 2 Payments = 61-90days, 3+ Payments = 91+
								6 Months Moving Average
1 or 2 Payments Delinquent					3 or More Payments Delinquent


Total Foreclosure					Total Bankruptcy and REO


Note: Dates correspond to distribution dates.
				Page 15 of 28				© COPYRIGHT 2004 Deutsche Bank
	GSAMP Trust 2004-AR1
	Mortgage Pass-Through Certificates
	Series 2004-AR1
	REO Report for September 27, 2004 Distribution


	REO Report - Mortgage Loans that Become REO During Current Distribution


SUMMARY				LOAN GROUP

Total Loan Count = 0				Loan Group 1 = Group 1 - Fannie; REO Book Value = 000.00
Total Original Principal Balance = 000.00				Loan Group 2 = Group 2 - Non-Fannie; REO Book Value = 000.00
Total Current Balance = 000.00
REO Book Value = 000.00

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

Loan Number		Original	Stated		Current	State &
&		Principal	Principal	Paid to	Note	LTV at	Original	Origination
Loan Group		Balance	Balance	Date	Rate	Origination	Term	Date
SPACE INTENTIONALLY LEFT BLANK


				Page 16 of 28				© COPYRIGHT 2004 Deutsche Bank
	GSAMP Trust 2004-AR1
	Mortgage Pass-Through Certificates
	Series 2004-AR1
	Prepayment Report for September 27, 2004 Distribution


	Prepayment Report - Voluntary Prepayments


VOLUNTARY PREPAYMENTS						GROUP 2 - NON-FANNIE	GROUP 1 - FANNIE	TOTAL

	*Current*
	Number of Paid in Full Loans					37	102	139
	Number of Repurchased Loans					-	-	-
	Total Number of Loans Prepaid in Full					37	102	139

	Paid in Full Balance					8,473,608.10	21,568,902.80	30,042,510.90
	Repurchased Loans Balance					-	-	-
	Curtailments Amount					118,525.90	13,089.58	131,615.48
	Total Prepayment Amount					8,592,134.00	21,581,992.38	30,174,126.38

	*Cumulative*
	Number of Paid in Full Loans					58	204	262
	Number of Repurchased Loans					-	-	-
	Total Number of Loans Prepaid in Full					58	204	262

	Paid in Full Balance					14,836,748.22	40,986,303.36	55,823,051.58
	Repurchased Loans Balance					-	-	-
	Curtailments Amount					162,446.35	98,208.37	260,654.72
	Total Prepayment Amount					14,999,194.57	41,084,511.73	56,083,706.30

SPACE INTENTIONALLY LEFT BLANK


Total Prepayments by Groups (in thousands of dollars)					Total Prepayments (in thousands of dollars)


				Page 17 of 28				© COPYRIGHT 2004 Deutsche Bank
	GSAMP Trust 2004-AR1
	Mortgage Pass-Through Certificates
	Series 2004-AR1
	Prepayment Report for September 27, 2004 Distribution


	Prepayment Report - Voluntary Prepayments


VOLUNTARY PREPAYMENT RATES						GROUP 2 - NON-FANNIE	GROUP 1 - FANNIE	TOTAL

	SMM					2.13%	2.62%	2.46%
	3 Months Avg SMM					1.23%	1.65%	1.51%
	12 Months Avg SMM
	Avg SMM Since Cut-off					1.23%	1.65%	1.51%

	CPR					22.74%	27.29%	25.82%
	3 Months Avg CPR					13.83%	18.11%	16.73%
	12 Months Avg CPR
	Avg CPR Since Cut-off					13.83%	18.11%	16.73%

	PSA					2261.27%	2637.56%	2518.87%
	3 Months Avg PSA Approximation					1585.85%	2005.53%	1873.40%
	12 Months Avg PSA Approximation
	Avg PSA Since Cut-off Approximation					1585.85%	2005.53%	1873.40%



	Group 1 - Fannie
	Group 2 - Non-Fannie


CPR by Groups					Total CPR


PSA by Groups					Total PSA


				Page 18 of 28				© COPYRIGHT 2004 Deutsche Bank
	GSAMP Trust 2004-AR1
	Mortgage Pass-Through Certificates
	Series 2004-AR1
	Prepayment Report for September 27, 2004 Distribution


	Prepayment Report - Voluntary Prepayments

	Group 1 - Fannie
	Group 2 - Non-Fannie

CPR Avg since Cut-Off by Groups					Total CPR Avg since Cut-Off


PSA Avg since Cut-Off by Groups					Total PSA Avg since Cut-Off


PREPAYMENT CALCULATION METHODOLOGY
Single Monthly Mortality (SMM): (Voluntary partial and full prepayments + Repurchases)/(Beg Principal Balance - Sched Principal)
Conditional Prepayment Rate (CPR): 1-((1-SMM)^12)
PSA Standard Prepayment Model: CPR/(0.02*min(30,WAS))
Average SMM over period between nth month and mth month (AvgSMMn,m): [(1-SMMn) * (1-SMMn+1) .......(1-SMMm)]^(1/months in period n,m)
Average CPR over period between the nth month and mth month (AvgCPRn,m): 1-((1-AvgSMMn,m)^12)
Average PSA Approximation over period between the nth month and mth month: AvgCPRn,m/(0.002*Avg WASn,m))
Average WASn,m: (min(30,WASn)+min(30,WASn+1)+.......+min(30,WASm)/(number of months in the period n,m)
Weighted Average Seasoning (WAS)

Note: Prepayment rates are calculated since deal issue date and include partial and full voluntary prepayments and repurchases.
Dates correspond to distribution dates.

				Page 19 of 28				© COPYRIGHT 2004 Deutsche Bank


	GSAMP Trust 2004-AR1
	Mortgage Pass-Through Certificates
	Series 2004-AR1
	Prepayment Detail Report for September 27, 2004 Distribution


	Prepayment Detail Report - Loans Prepaid in Full During Current Distribution


SUMMARY						LOAN GROUP

Total Loan Count = 139						Loan Group 1 = Group 1 - Fannie
Total Original Principal Balance = 30,185,461.00						Loan Group 2 = Group 2 - Non-Fannie
Total Prepayment Amount = 30,042,510.90


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

53679437 1			387,000.00	383,991.32	Aug-10-04	6.850%	NY - 90.00%	Paid Off - 360	Dec-01-03
53772315 1			215,000.00	213,570.42	Aug-30-04	7.650%	CA - 86.69%	Paid Off - 360	Dec-01-03
53883732 1			166,250.00	165,270.54	Aug-31-04	7.650%	IL - 95.00%	Paid Off - 360	Jan-01-04
53901617 1			270,750.00	269,404.78	Aug-18-04	8.500%	IL - 95.00%	Paid Off - 360	Jan-01-04
54105457 1			127,350.00	126,528.01	Aug-10-04	7.800%	MN - 90.00%	Paid Off - 360	Dec-01-03
54112438 1			251,750.00	250,404.10	Aug-19-04	7.450%	CA - 95.00%	Paid Off - 360	Feb-01-04
54184635 1			269,500.00	267,730.98	Aug-10-04	7.100%	NJ - 70.00%	Paid Off - 360	Jan-01-04
54381538 1			297,000.00	294,637.81	Aug-06-04	6.100%	AZ - 90.00%	Paid Off - 360	Jan-01-04
54407713 1			190,000.00	188,868.68	Aug-24-04	6.900%	MN - 95.00%	Paid Off - 360	Feb-01-04
54463732 1			202,500.00	201,490.04	Aug-12-04	7.800%	CT - 90.00%	Paid Off - 360	Feb-01-04
54465232 1			294,500.00	293,095.10	Aug-10-04	8.700%	CA - 95.00%	Paid Off - 360	Jan-01-04
54465570 1			135,000.00	134,188.73	Aug-04-04	7.550%	CT - 90.00%	Paid Off - 360	Jan-01-04
54509211 1			140,500.00	139,671.55	Aug-03-04	6.950%	MD - 68.54%	Paid Off - 360	Feb-01-04
54523972 1			258,400.00	257,161.78	Aug-31-04	8.000%	IL - 85.00%	Paid Off - 360	Feb-01-04
54558390 1			153,000.00	152,192.80	Aug-12-04	7.850%	NV - 88.95%	Paid Off - 360	Feb-01-04
54606975 1			76,000.00	75,573.22	Aug-09-04	7.200%	CO - 80.00%	Paid Off - 360	Feb-01-04
54644695 1			189,000.00	188,101.87	Aug-27-04	7.250%	CA - 90.00%	Paid Off - 360	Mar-01-04
54689856 1			117,000.00	116,430.20	Aug-25-04	8.000%	IL - 90.00%	Paid Off - 360	Feb-01-04
54734835 1			153,900.00	152,956.61	Aug-10-04	6.750%	NV - 90.00%	Paid Off - 360	Feb-01-04
54751771 1			166,500.00	165,725.57	Aug-31-04	8.150%	IL - 90.00%	Paid Off - 360	Feb-01-04
54777651 1			133,950.00	131,183.09	Aug-20-04	7.990%	OH - 95.00%	Paid Off - 180	Feb-01-04
54857834 1			139,500.00	138,731.81	Aug-13-04	7.300%	OH - 90.00%	Paid Off - 360	Feb-01-04
54879416 1			228,330.00	227,013.05	Aug-20-04	6.250%	WA - 90.00%	Paid Off - 360	Mar-01-04
54907092 1			328,500.00	326,828.33	Aug-31-04	6.900%	CA - 90.00%	Paid Off - 360	Mar-01-04
54981972 1			278,100.00	276,465.14	Aug-06-04	6.150%	CO - 90.00%	Paid Off - 360	Mar-01-04
55075097 1			135,920.00	135,248.27	Aug-26-04	7.050%	IL - 80.00%	Paid Off - 360	Mar-01-04
55079859 1			299,250.00	297,288.02	Aug-04-04	6.400%	CA - 95.00%	Paid Off - 360	Feb-01-04
55099550 1			310,000.00	305,810.73	Aug-05-04	5.400%	CA - 87.32%	Paid Off - 360	Mar-01-04
55115398 1			144,000.00	142,981.08	Aug-16-04	6.150%	CA - 79.56%	Paid Off - 360	Feb-01-04
55193676 1			306,000.00	304,396.79	Aug-30-04	6.750%	CA - 90.00%	Paid Off - 360	Mar-01-04
55266431 1			142,000.00	141,141.10	Aug-13-04	6.000%	CA - 71.00%	Paid Off - 360	Mar-01-04
55278071 1			228,000.00	226,817.02	Aug-13-04	6.800%	FL - 93.06%	Paid Off - 360	Mar-01-04
55287254 1			154,000.00	153,104.62	Aug-10-04	6.250%	CA - 72.30%	Paid Off - 360	Mar-01-04
55321137 1			327,600.00	325,866.93	Aug-20-04	6.700%	CA - 90.00%	Paid Off - 360	Mar-01-04
55324818 1			93,000.00	92,615.84	Aug-30-04	7.325%	CA - 94.90%	Paid Off - 360	Apr-01-04
55325633 1			279,000.00	277,619.88	Aug-10-04	7.050%	CA - 90.00%	Paid Off - 360	Mar-01-04
55332050 1			117,900.00	117,322.99	Aug-03-04	7.100%	FL - 90.00%	Paid Off - 360	Mar-01-04
55366678 1			275,500.00	273,769.64	Aug-27-04	5.800%	CA - 95.00%	Paid Off - 360	Mar-01-04
55418339 1			304,000.00	302,663.57	Aug-27-04	6.700%	CA - 95.00%	Paid Off - 360	Apr-01-04
55434252 1			126,000.00	125,441.27	Aug-25-04	7.600%	IL - 90.00%	Paid Off - 360	Mar-01-04
55441331 1			318,600.00	316,779.86	Aug-05-04	6.300%	CA - 90.00%	Paid Off - 360	Mar-01-04
55458293 1			139,400.00	138,855.04	Aug-11-04	7.300%	CA - 85.00%	Paid Off - 360	Apr-01-04
55538433 1			184,000.00	183,235.20	Aug-31-04	7.000%	FL - 80.00%	Paid Off - 360	Apr-01-04
55542492 1			142,500.00	141,638.13	Aug-04-04	6.000%	CA - 75.00%	Paid Off - 360	Mar-01-04

					Page 20 of 28				© COPYRIGHT 2004 Deutsche Bank
	GSAMP Trust 2004-AR1
	Mortgage Pass-Through Certificates
	Series 2004-AR1
	Prepayment Detail Report for September 27, 2004 Distribution


	Prepayment Detail Report - Loans Prepaid in Full During Current Distribution



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

55583033 1			144,000.00	143,377.14	Aug-09-04	7.725%	MN - 90.00%	Paid Off - 360	Mar-01-04
55710859 1			330,600.00	329,188.40	Aug-26-04	6.850%	CA - 95.00%	Paid Off - 360	Apr-01-04
55754295 1			122,726.00	121,997.63	Aug-10-04	6.100%	MO - 95.00%	Paid Off - 360	Mar-01-04
55801153 1			192,200.00	191,477.78	Aug-10-04	7.500%	MN - 89.99%	Paid Off - 360	Apr-01-04
55802557 1			228,000.00	226,849.33	Aug-31-04	5.980%	CA - 95.00%	Paid Off - 360	Apr-01-04
55808257 1			199,800.00	199,137.07	Aug-26-04	8.800%	IL - 90.00%	Paid Off - 360	Apr-01-04
55811335 1			294,500.00	292,597.40	Aug-20-04	5.650%	CA - 95.00%	Paid Off - 360	Mar-01-04
55812630 1			93,750.00	93,479.11	Aug-24-04	8.800%	AZ - 75.00%	Paid Off - 360	Apr-01-04
55816698 1			129,000.00	126,783.05	Aug-19-04	6.500%	CA - 81.65%	Paid Off - 180	Apr-01-04
55831937 1			191,900.00	190,603.55	Aug-18-04	5.850%	CA - 95.00%	Paid Off - 360	Mar-01-04
55841597 1			252,000.00	251,108.08	Aug-10-04	7.800%	CA - 90.00%	Paid Off - 360	Apr-01-04
55842751 1			237,500.00	236,505.51	Aug-10-04	6.950%	CA - 95.00%	Paid Off - 360	Apr-01-04
55866230 1			335,700.00	334,632.44	Aug-02-04	7.200%	IL - 90.00%	Paid Off - 360	May-01-04
55869994 1			186,500.00	185,282.91	Aug-10-04	6.500%	RI - 93.25%	Paid Off - 360	Apr-01-04
55878714 1			327,669.00	326,242.44	Aug-31-04	6.750%	CA - 87.38%	Paid Off - 360	Apr-01-04
55879316 1			267,900.00	266,703.91	Aug-31-04	6.620%	OH - 95.00%	Paid Off - 360	Apr-01-04
55914816 1			238,000.00	236,803.40	Aug-25-04	6.000%	CA - 89.81%	Paid Off - 360	Apr-01-04
55925473 1			242,250.00	241,321.50	Aug-13-04	7.400%	CA - 95.00%	Paid Off - 360	Apr-01-04
55943575 1			153,000.00	152,490.17	Aug-24-04	8.100%	IL - 90.00%	Paid Off - 360	Apr-01-04
55976773 1			327,500.00	325,733.71	Aug-26-04	6.600%	CA - 94.93%	Paid Off - 360	Mar-01-04
55991996 1			180,000.00	179,425.40	Aug-05-04	8.650%	IL - 92.78%	Paid Off - 360	Apr-01-04
56009939 1			315,000.00	313,828.07	Aug-30-04	7.550%	CA - 90.00%	Paid Off - 360	Apr-01-04
56026990 1			209,000.00	208,081.18	Aug-06-04	6.700%	NV - 95.00%	Paid Off - 360	Apr-01-04
56069354 1			279,000.00	278,032.14	Aug-10-04	7.900%	CA - 90.00%	Paid Off - 360	Apr-01-04
56069370 1			290,610.00	289,416.67	Aug-10-04	7.050%	FL - 90.00%	Paid Off - 360	Apr-01-04
56069610 1			173,850.00	173,293.66	Aug-23-04	8.300%	CA - 95.00%	Paid Off - 360	Apr-01-04
56075252 1			297,900.00	296,676.77	Aug-10-04	7.050%	CA - 90.00%	Paid Off - 360	Apr-01-04
56106891 1			279,000.00	278,357.49	Aug-06-04	8.800%	CA - 90.00%	Paid Off - 360	May-01-04
56107337 1			121,500.00	120,965.85	Aug-16-04	6.700%	IL - 88.69%	Paid Off - 360	Apr-01-04
56124571 1			148,800.00	147,993.35	Aug-31-04	5.600%	WI - 80.00%	Paid Off - 360	Apr-01-04
56209117 1			259,000.00	257,924.11	Aug-30-04	7.000%	WA - 89.31%	Paid Off - 360	Apr-01-04
56218910 1			216,000.00	215,155.58	Aug-11-04	7.300%	CA - 90.00%	Paid Off - 360	Apr-01-04
56243751 1			101,628.00	101,234.62	Aug-31-04	7.350%	AZ - 90.00%	Paid Off - 360	Apr-01-04
56298771 1			216,000.00	215,147.21	Aug-04-04	7.250%	IL - 90.00%	Paid Off - 360	Apr-01-04
56402613 1			283,000.00	281,953.89	Aug-02-04	7.600%	IL - 94.33%	Paid Off - 360	Apr-01-04
56435514 1			106,200.00	105,900.25	Aug-13-04	7.800%	IL - 90.00%	Paid Off - 360	May-01-04
56487077 1			207,000.00	206,391.94	Aug-05-04	7.600%	MA - 90.00%	Paid Off - 360	May-01-04
56500457 1			326,000.00	325,023.14	Aug-16-04	7.500%	IL - 90.56%	Paid Off - 360	May-01-04
56595416 1			226,800.00	226,141.61	Aug-04-04	7.950%	IL - 90.00%	Paid Off - 360	May-01-04
56601354 1			159,600.00	159,066.91	Aug-09-04	6.950%	MI - 95.00%	Paid Off - 360	May-01-04
56627193 1			174,300.00	173,706.31	Aug-02-04	6.850%	IL - 86.72%	Paid Off - 360	May-01-04
56666092 1			193,800.00	193,044.36	Aug-31-04	6.150%	CA - 95.00%	Paid Off - 360	May-01-04
56707714 1			195,000.00	194,275.27	Aug-10-04	6.400%	CA - 67.24%	Paid Off - 360	May-01-04
56748635 1			232,750.00	231,949.45	Aug-10-04	6.800%	CA - 95.00%	Paid Off - 360	May-01-04
56811136 1			147,250.00	146,871.30	Aug-02-04	8.500%	IL - 94.39%	Paid Off - 360	May-01-04
56841513 1			216,500.00	215,694.89	Aug-19-04	6.400%	CA - 92.13%	Paid Off - 360	May-01-04
56929938 1			208,250.00	207,600.68	Aug-06-04	7.300%	CA - 85.00%	Paid Off - 360	May-01-04
56933435 1			190,000.00	189,389.78	Aug-11-04	7.150%	CA - 95.00%	Paid Off - 360	May-01-04
57010217 1			140,600.00	140,125.72	Aug-30-04	6.900%	IL - 95.00%	Paid Off - 360	May-01-04
57012197 1			157,000.00	156,399.44	Aug-23-04	6.250%	CA - 92.90%	Paid Off - 360	May-01-04
57153173 1			270,000.00	269,214.77	Aug-12-04	7.650%	IL - 90.00%	Paid Off - 360	May-01-04
57185373 1			324,000.00	323,067.07	Aug-10-04	7.700%	IL - 90.00%	Paid Off - 360	May-01-04

					Page 21 of 28				© COPYRIGHT 2004 Deutsche Bank
	GSAMP Trust 2004-AR1
	Mortgage Pass-Through Certificates
	Series 2004-AR1
	Prepayment Detail Report for September 27, 2004 Distribution


	Prepayment Detail Report - Loans Prepaid in Full During Current Distribution



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

57317810 1			142,650.00	142,230.96	Aug-04-04	7.600%	CA - 90.00%	Paid Off - 360	May-01-04
64349566 1			304,000.00	302,360.43	Aug-25-04	6.600%	CA - 80.00%	Paid Off - 360	Mar-01-04
67598169 1			285,000.00	283,698.06	Aug-30-04	7.450%	CA - 95.00%	Paid Off - 360	Mar-01-04
69068724 1			85,500.00	85,194.32	Aug-16-04	7.750%	CA - 90.00%	Paid Off - 360	Apr-01-04
72634389 1			152,000.00	151,543.60	Aug-20-04	7.490%	CA - 95.00%	Paid Off - 360	May-01-04
75156000 1			171,000.00	170,400.51	Aug-02-04	6.990%	CA - 95.00%	Paid Off - 360	May-01-04
54804976 2			446,500.00	443,943.09	Aug-09-04	7.100%	AZ - 95.00%	Paid Off - 360	Feb-01-04
54917497 2			361,000.00	358,323.42	Aug-12-04	5.750%	CA - 95.00%	Paid Off - 360	Feb-01-04
54945092 2			247,500.00	245,982.87	Aug-26-04	6.750%	CA - 90.00%	Paid Off - 360	Feb-01-04
55031652 2			80,000.00	79,090.35	Aug-13-04	7.550%	AZ - 63.24%	Paid Off - 360	Apr-01-04
55344170 2			296,250.00	294,454.79	Aug-26-04	5.990%	CA - 75.00%	Paid Off - 360	Mar-01-04
55416119 2			103,500.00	103,124.76	Aug-05-04	8.600%	HI - 90.00%	Paid Off - 360	Mar-01-04
55639397 2			346,750.00	345,381.05	Aug-31-04	7.250%	CA - 95.00%	Paid Off - 360	Apr-01-04
55681373 2			60,000.00	59,506.58	Aug-04-04	7.200%	OH - 64.52%	Paid Off - 360	Mar-01-04
55706030 2			184,000.00	183,484.53	Aug-03-04	8.950%	IL - 89.76%	Paid Off - 360	Apr-01-04
55809198 2			411,678.00	409,608.25	Aug-27-04	6.000%	CA - 90.00%	Paid Off - 360	Apr-01-04
55870612 2			90,450.00	90,123.38	Aug-17-04	7.700%	IL - 90.00%	Paid Off - 360	Apr-01-04
55889596 2			412,500.00	410,484.40	Aug-25-04	6.150%	FL - 75.00%	Paid Off - 360	Apr-01-04
55958011 2			408,500.00	406,136.55	Aug-10-04	5.250%	CA - 95.00%	Paid Off - 360	Apr-01-04
55981278 2			144,000.00	143,546.55	Aug-31-04	7.250%	MI - 80.00%	Paid Off - 360	May-01-04
55989875 2			344,250.00	342,956.50	Aug-04-04	7.500%	CA - 90.00%	Paid Off - 360	Apr-01-04
56050859 2			437,000.00	435,729.10	Aug-20-04	7.650%	MD - 95.00%	Paid Off - 360	May-01-04
56071558 2			75,000.00	74,800.47	Aug-12-04	9.200%	TX - 75.00%	Paid Off - 360	Apr-01-04
56224876 2			61,200.00	60,943.70	Aug-31-04	6.950%	MO - 90.00%	Paid Off - 360	Apr-01-04
56226772 2			346,500.00	345,642.67	Aug-10-04	8.450%	CA - 90.00%	Paid Off - 360	May-01-04
56280795 2			460,750.00	459,633.07	Aug-19-04	8.550%	MI - 95.00%	Paid Off - 360	May-01-04
56308919 2			228,000.00	227,490.94	Aug-11-04	8.950%	GA - 95.00%	Paid Off - 360	May-01-04
56490519 2			225,250.00	224,611.69	Aug-30-04	8.900%	CA - 86.63%	Paid Off - 360	Apr-01-04
56553134 2			134,400.00	134,057.07	Aug-17-04	9.400%	IL - 70.00%	Paid Off - 360	Apr-01-04
56565492 2			61,750.00	61,513.30	Aug-26-04	7.400%	FL - 95.00%	Paid Off - 360	Apr-01-04
56646359 2			78,850.00	78,645.45	Aug-09-04	9.050%	TX - 95.00%	Paid Off - 360	May-01-04
56674096 2			172,800.00	172,315.99	Aug-18-04	7.850%	MD - 90.00%	Paid Off - 360	May-01-04
56880255 2			442,700.00	441,333.34	Aug-11-04	7.350%	CA - 95.00%	Paid Off - 360	May-01-04
57041352 2			133,000.00	132,564.36	Aug-05-04	7.050%	FL - 95.00%	Paid Off - 360	May-01-04
57064651 2			67,500.00	67,305.65	Aug-02-04	7.700%	IL - 90.00%	Paid Off - 360	May-01-04
57123416 2			182,000.00	179,381.18	Aug-20-04	5.550%	CA - 66.18%	Paid Off - 180	May-01-04
57236770 2			103,500.00	103,188.39	Aug-10-04	8.550%	MD - 90.00%	Paid Off - 360	May-01-04
57300196 2			225,000.00	224,377.61	Aug-03-04	7.900%	CA - 90.00%	Paid Off - 360	May-01-04
57327835 2			192,000.00	191,214.91	Aug-30-04	5.900%	FL - 80.00%	Paid Off - 360	May-01-04
66662149 2			72,000.00	71,861.06	Aug-16-04	9.650%	TX - 80.00%	Paid Off - 360	May-01-04
72069404 2			400,000.00	398,715.39	Aug-16-04	7.150%	CA - 68.97%	Paid Off - 360	May-01-04
72567209 2			397,800.00	396,654.60	Aug-17-04	7.700%	CA - 90.00%	Paid Off - 360	May-01-04
73740466 2			75,650.00	75,481.09	Aug-02-04	8.950%	NV - 85.00%	Paid Off - 360	May-01-04


					Page 22 of 28				© COPYRIGHT 2004 Deutsche Bank
	GSAMP Trust 2004-AR1
	Mortgage Pass-Through Certificates
	Series 2004-AR1
	Realized Loss Report for September 27, 2004 Distribution


	Realized Loss Report - Collateral


COLLATERAL REALIZED LOSSES						GROUP 2 - NON-FANNIE	GROUP 1 - FANNIE	TOTAL

	*Current*
	Number of Loans Liquidated					-	-	-
	Collateral Realized Loss/(Gain) Amount					-	-	-
	Net Liquidation Proceeds					-	-	-

	*Cumulative*
	Number of Loans Liquidated					-	-	-
	Collateral Realized Loss/(Gain) Amount					-	-	-
	Net Liquidation Proceeds					-	-	-

	Note: Collateral Realized Loss Amount may include adjustments to loans liquidated in prior periods.


	Supplemental Realized Losses (Recoveries)							0.00

	Cumulative Loss Percentage					0.000000%	0.000000%	0.000000%

	Applied Realized Loss Amount Current							0.00
	Applied Realized Loss Amount Aggregate							0.00


	Group 1 - Fannie						3 Months Moving Average
	Group 2 - Non-Fannie

Collateral Loss Severity Approximation by Groups					Collateral Loss Severity Approximation


				Page 23 of 28				© COPYRIGHT 2004 Deutsche Bank
	GSAMP Trust 2004-AR1
	Mortgage Pass-Through Certificates
	Series 2004-AR1
	Realized Loss Report for September 27, 2004 Distribution


	Realized Loss Report - Collateral


DEFAULT SPEEDS						GROUP 2 - NON-FANNIE	GROUP 1 - FANNIE	TOTAL

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

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

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

	Loss Severity Approximation for Current Period
	3 Months Avg Loss Severity Approximation
	12 Months Avg Loss Severity Approximation
	Avg Loss Severity Approximation Since Cut-off

	Group 1 - Fannie
	Group 2 - Non-Fannie
CDR by Groups					Total CDR


SDA by Groups					Total SDA


				Page 24 of 28				© COPYRIGHT 2004 Deutsche Bank
	GSAMP Trust 2004-AR1
	Mortgage Pass-Through Certificates
	Series 2004-AR1
	Realized Loss Report for September 27, 2004 Distribution


	Realized Loss Report - Collateral

	Group 1 - Fannie
	Group 2 - Non-Fannie

CDR Avg since Cut-Off by Groups					Total CDR Avg since Cut-Off


SDA Avg since Cut-Off by Groups					Total SDA Avg since Cut-Off


COLLATERAL REALIZED LOSS CALCULATION METHODOLOGY
Monthly Default Rate (MDR): (Beg Principal Balance of Liquidated Loans)/(Total Beg Principal Balance)
Conditional Default Rate (CDR): 1-((1-MDR)^12)
SDA Standard Default Assumption: CDR/IF(WAS<61,MIN(30,WAS)0.02,MAX(0.03,MIN(30,WAS)0.02-0.0095*(WAS-60)))
Average MDR over period between nth month and mth month (AvgMDRn,m): [(1-MDRn) * (1-MDRn+1) .......(1-MDRm)]^(1/months in period n,m)
Average CDR over period between the nth month and mth month (AvgCDRn,m): 1-((1-AvgMDRn,m)^12)
Average SDA Approximation over period between the nth month and mth month:
AvgCDRn,m/IF(Avg WASn,m<61,MIN(30,Avg WASn,m)0.02,MAX(0.03,MIN(30,Avg WASn,m)0.02-0.0095*(Avg WASn,m-60)))
Average WASn,m: (WASn + WASn+1 +.......+ WASm )/(number of months in the period n,m)
Loss Severity Approximation for current period: sum(Realized Loss Amount)/sum(Beg Principal Balance of Liquidated Loans)
Average Loss Severity Approximation over period between nth month and mth month: Avg(Loss Severityn,m)
Note: Default rates are calculated since deal issue date and include realized gains and additional realized losses and gains from prior periods.
Dates correspond to distribution dates.

				Page 25 of 28				© COPYRIGHT 2004 Deutsche Bank


	GSAMP Trust 2004-AR1
	Mortgage Pass-Through Certificates
	Series 2004-AR1
	Realized Loss Detail Report for September 27, 2004 Distribution


	Realized Loss Detail Report - Loans Liquidated During Current Distribution

SUMMARY							LOAN GROUP
Total Loan Count Current Losses = 0
Total Loan Count Revisions = 0						Loan Group 1 = Group 1 - Fannie
Total Prior Principal Balance = 0.00						Loan Group 2 = Group 2 - Non-Fannie
Total Current Realized Loss Amount = 0.00
Total Revisions Amount = 0.00
Total Realized Loss Amount = 0.00
Total Net Liquidation Proceeds = 0.00
Note: Total Realized Loss Amount may include adjustments to loans liquidated in prior periods.

Loan Number			Current	State &		Prior	Realized		Cumulative
&		Loan	Note	LTV at	Original	Principal	Loss/(Gain)	Realized	Realized
Loan Group		Status	Rate	Origination	Term	Balance	Revisions	Loss/(Gain)	Loss/(Gain)
SPACE INTENTIONALLY LEFT BLANK


					Page 26 of 28				© COPYRIGHT 2004 Deutsche Bank
	GSAMP Trust 2004-AR1
	Mortgage Pass-Through Certificates
	Series 2004-AR1
	Triggers, Adj. Rate Cert. and Miscellaneous Report for September 27, 2004 Distribution


	Triggers, Adj. Rate Cert. and Miscellaneous Report


TRIGGER EVENTS						GROUP 2 - NON-FANNIE	GROUP 1 - FANNIE	TOTAL

	Has the Optional Termination Date been reached							No

	Has a Stepdown Date occurred?							No

	Does Trigger Event exist?							No

	A Trigger Event exists if either (i) or (ii) are true
	(i) the quotient of (1) divided by (2) > 40% of Sr. Enhance %
	(1) 60+ Day Rolling Delq loans							4,644,277.14
	(2) Stated Principal Balance							1,197,385,185.02
	60+ Day Delq % ( quotient of (1) over (2) )							0.387868%
	Senior Enhancement Percentage							22.253036%
	40% of Sr Enhancement Percentage							8.901214%
	(ii) the quotient of (x) divided by (y) > the applicable loss %
	(x) aggregate Realized Losses since Cutoff Date							0.00
	(y) Cutoff Date Pool Principal Balance							1,256,862,318.80
	Trigger Event Loss % (quotient of (x) over (y) )							0.000000%
	Applicable Loss Percentage							100.000000%



ADJUSTABLE RATE CERTIFICATE INFORMATION						GROUP 2 - NON-FANNIE	GROUP 1 - FANNIE	TOTAL
SPACE INTENTIONALLY LEFT BLANK


ADDITIONAL INFORMATION						GROUP 2 - NON-FANNIE	GROUP 1 - FANNIE	TOTAL

	Policy Payment Account Transfers to Class A-1A
	Payment of Principal							0.00
	Payment of Interest							0.00


				Page 27 of 28				© COPYRIGHT 2004 Deutsche Bank
	GSAMP Trust 2004-AR1
	Mortgage Pass-Through Certificates
	Series 2004-AR1
	Other Related Information for September 27, 2004 Distribution


	Other Related Information


ADDITIONAL INFORMATION						GROUP 2 - NON-FANNIE	GROUP 1 - FANNIE	TOTAL

	Ending Balances on 60+ Day Delinquent Loans
	1 Month Prior							7,605,896.01
	2 Months Prior							2,264,117.27
	3 Months Prior							4,062,818.13
	4 Months Prior							0.00
	5 Months Prior							0.00
	6 Months Prior							0.00
	7 Months Prior							0.00
	8 Months Prior							0.00
	9 Months Prior							0.00
	10 Months Prior							0.00
	11 Months Prior							0.00
	12 Months Prior							0.00

	Scheduled Principal on 60+ Day Delinquent Loans
	1 Month Prior							54,016.93
	2 Months Prior							15,878.02
	3 Months Prior							28,473.86
	4 Months Prior							0.00
	5 Months Prior							0.00
	6 Months Prior							0.00
	7 Months Prior							0.00
	8 Months Prior							0.00
	9 Months Prior							0.00
	10 Months Prior							0.00
	11 Months Prior							0.00
	12 Months Prior							0.00


				Page 28 of 28				© COPYRIGHT 2004 Deutsche Bank

GS Mortgage Securities Corp. GSAMP Trust 2004-AR1 8-K