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|-------------------------- | ------- | --------- | ------------- | ----- | -------------- |  | ----------------------- |  | --------------- |  | --------- |  |  |  | -------------- | 
|                           |         |           |               |       |                |  |                         |  |                 |  |           |  |  |  |                | 
|                           |         |           |               |       |               
|GSAMP Trust Series 2005-S1
|                           |         |           |               |       |                |  |                         |  |                 |  |           |  |  |  |                | 
|2005 Annual Statement     
|                           |         |           |               |       |                |  |                         |  |                 |  |           |  |  |  |                | 
|                           |         |           |               |       |                |  | DISTRIBUTION IN DOLLARS |  |                 |  |           |  | 
|                           |         |           |               |       |                |  |                         |  |                 |  |           |  |  |  | ENDING BALANCE | 
|PERIOD                     |         | CLASS     |               | CUSIP |                |  | INTEREST                |  |                 |  | PRINCIPAL |  | 
|200504                     | A       | 36242DB69 | $286,669.98   |       | $9,207,301.13  |  | $178,158,698.87         | 
|200505                     | A       | 36242DB69 | $473,605.21   |       | $9,871,783.41  |  | $168,286,915.46         | 
|200506                     | A       | 36242DB69 | $502,897.40   |       | $10,300,417.62 |  | $157,986,497.84         | 
|200507                     | A       | 36242DB69 | $428,154.99   |       | $14,030,637.48 |  | $143,955,860.36         | 
|200508                     | A       | 36242DB69 | $449,982.03   |       | $13,362,273.34 |  | $130,593,587.02         | 
|200509                     | A       | 36242DB69 | $442,422.05   |       | $14,235,059.59 |  | $116,358,527.43         | 
|200510                     | A       | 36242DB69 | $374,933.03   |       | $16,011,999.04 |  | $100,346,528.39         | 
|200511                     | A       | 36242DB69 | $363,568.02   |       | $14,297,029.15 |  | $86,049,499.24          | 
|200512                     | A       | 36242DB69 | $333,585.23   |       | $17,076,810.19 |  | $68,972,689.05          | 
|                           |         |           |               |       |                |  |                         |  |                 |  |           |  |  |  |                | 
|                           |         |           |               |       |                |  | $3,655,817.94           |  | $118,393,310.95 |  |           |  | 
|200504                     | B-1     | 36242DB93 | $87,517.28    |       | $0.00          |  | $16,917,000.00          | 
|200505                     | B-1     | 36242DB93 | $87,517.28    |       | $0.00          |  | $16,917,000.00          | 
|200506                     | B-1     | 36242DB93 | $87,517.28    |       | $0.00          |  | $16,917,000.00          | 
|200507                     | B-1     | 36242DB93 | $87,517.28    |       | $0.00          |  | $16,917,000.00          | 
|200508                     | B-1     | 36242DB93 | $87,517.28    |       | $0.00          |  | $16,917,000.00          | 
|200509                     | B-1     | 36242DB93 | $87,517.28    |       | $0.00          |  | $16,917,000.00          | 
|200510                     | B-1     | 36242DB93 | $87,517.28    |       | $0.00          |  | $16,917,000.00          | 
|200511                     | B-1     | 36242DB93 | $87,517.28    |       | $0.00          |  | $16,917,000.00          | 
|200512                     | B-1     | 36242DB93 | $87,517.28    |       | $0.00          |  | $16,917,000.00          | 
|                           |         |           |               |       |                |  |                         |  |                 |  |           |  |  |  |                | 
|                           |         |           |               |       |                |  | $787,655.52             |  | $0.00           |  |           |  | 
|200504                     | B-2     | 36242DC27 | $25,875.51    |       | $0.00          |  | $4,742,000.00           | 
|200505                     | B-2     | 36242DC27 | $25,875.51    |       | $0.00          |  | $4,742,000.00           | 
|200506                     | B-2     | 36242DC27 | $25,875.51    |       | $0.00          |  | $4,742,000.00           | 
|200507                     | B-2     | 36242DC27 | $25,875.51    |       | $0.00          |  | $4,742,000.00           | 
|200508                     | B-2     | 36242DC27 | $25,875.51    |       | $0.00          |  | $4,742,000.00           | 
|200509                     | B-2     | 36242DC27 | $25,875.51    |       | $0.00          |  | $4,742,000.00           | 
|200510                     | B-2     | 36242DC27 | $25,875.51    |       | $0.00          |  | $4,742,000.00           | 
|200511                     | B-2     | 36242DC27 | $25,875.51    |       | $0.00          |  | $4,742,000.00           | 
|200512                     | B-2     | 36242DC27 | $25,875.51    |       | $0.00          |  | $4,742,000.00           | 
|                           |         |           |               |       |                |  |                         |  |                 |  |           |  |  |  |                | 
|                           |         |           |               |       |                |  | $232,879.59             |  | $0.00           |  |           |  | 
|200504                     | B-3     | 36242DC35 | $30,993.75    |       | $0.00          |  | $5,510,000.00           | 
|200505                     | B-3     | 36242DC35 | $30,993.75    |       | $0.00          |  | $5,510,000.00           | 
|200506                     | B-3     | 36242DC35 | $30,993.75    |       | $0.00          |  | $5,510,000.00           | 
|200507                     | B-3     | 36242DC35 | $30,993.75    |       | $0.00          |  | $5,510,000.00           | 
|200508                     | B-3     | 36242DC35 | $30,993.75    |       | $0.00          |  | $5,510,000.00           | 
|200509                     | B-3     | 36242DC35 | $30,993.75    |       | $0.00          |  | $5,510,000.00           | 
|200510                     | B-3     | 36242DC35 | $30,993.75    |       | $0.00          |  | $5,510,000.00           | 
|200511                     | B-3     | 36242DC35 | $30,993.75    |       | $0.00          |  | $5,510,000.00           | 
|200512                     | B-3     | 36242DC35 | $30,993.75    |       | $0.00          |  | $5,510,000.00           | 
|                           |         |           |               |       |                |  |                         |  |                 |  |           |  |  |  |                | 
|                           |         |           |               |       |                |  | $278,943.75             |  | $0.00           |  |           |  | 
|200504                     | M-1     | 36242DB77 | $36,170.40    |       | $0.00          |  | $21,530,000.00          | 
|200505                     | M-1     | 36242DB77 | $62,616.42    |       | $0.00          |  | $21,530,000.00          | 
|200506                     | M-1     | 36242DB77 | $70,259.57    |       | $0.00          |  | $21,530,000.00          | 
|200507                     | M-1     | 36242DB77 | $63,371.55    |       | $0.00          |  | $21,530,000.00          | 
|200508                     | M-1     | 36242DB77 | $72,861.11    |       | $0.00          |  | $21,530,000.00          | 
|200509                     | M-1     | 36242DB77 | $78,680.19    |       | $0.00          |  | $21,530,000.00          | 
|200510                     | M-1     | 36242DB77 | $74,577.53    |       | $0.00          |  | $21,530,000.00          | 
|200511                     | M-1     | 36242DB77 | $83,567.80    |       | $0.00          |  | $21,530,000.00          | 
|200512                     | M-1     | 36242DB77 | $89,205.97    |       | $0.00          |  | $21,530,000.00          | 
|                           |         |           |               |       |                |  |                         |  |                 |  |           |  |  |  |                | 
|                           |         |           |               |       |                |  | $631,310.54             |  | $0.00           |  |           |  | 
|200504                     | M-2     | 36242DB85 | $98,082.33    |       | $0.00          |  | $19,993,000.00          | 
|200505                     | M-2     | 36242DB85 | $98,082.33    |       | $0.00          |  | $19,993,000.00          | 
|200506                     | M-2     | 36242DB85 | $98,082.33    |       | $0.00          |  | $19,993,000.00          | 
|200507                     | M-2     | 36242DB85 | $98,082.33    |       | $0.00          |  | $19,993,000.00          | 
|200508                     | M-2     | 36242DB85 | $98,082.33    |       | $0.00          |  | $19,993,000.00          | 
|200509                     | M-2     | 36242DB85 | $98,082.33    |       | $0.00          |  | $19,993,000.00          | 
|200510                     | M-2     | 36242DB85 | $98,082.33    |       | $0.00          |  | $19,993,000.00          | 
|200511                     | M-2     | 36242DB85 | $98,082.33    |       | $0.00          |  | $19,993,000.00          | 
|200512                     | M-2     | 36242DB85 | $98,082.33    |       | $0.00          |  | $19,993,000.00          | 
|                           |         |           |               |       |                |  |                         |  |                 |  |           |  |  |  |                | 
|                           |         |           |               |       |                |  | $882,740.97             |  | $0.00           |  |           |  | 
|200504                     | P       | 36242DC68 | $222,375.12   |       | $0.00          |  | $0.00                   | 
|200505                     | P       | 36242DC68 | $228,868.01   |       | $0.00          |  | $0.00                   | 
|200506                     | P       | 36242DC68 | $249,527.10   |       | $0.00          |  | $0.00                   | 
|200507                     | P       | 36242DC68 | $349,831.01   |       | $0.00          |  | $0.00                   | 
|200508                     | P       | 36242DC68 | $334,345.79   |       | $0.00          |  | $0.00                   | 
|200509                     | P       | 36242DC68 | $358,900.19   |       | $0.00          |  | $0.00                   | 
|200510                     | P       | 36242DC68 | $419,255.08   |       | $0.00          |  | $0.00                   | 
|200511                     | P       | 36242DC68 | $394,350.42   |       | $0.00          |  | $0.00                   | 
|200512                     | P       | 36242DC68 | $340,766.75   |       | $0.00          |  | $0.00                   | 
|                           |         |           |               |       |                |  |                         |  |                 |  |           |  |  |  |                | 
|                           |         |           |               |       |                |  | $2,898,219.47           |  | $0.00           |  |           |  | 
|200504                     | R-1     | 36242DC76 | $0.00         |       | $0.00          |  | $0.00                   | 
|200505                     | R-1     | 36242DC76 | $0.00         |       | $0.00          |  | $0.00                   | 
|200506                     | R-1     | 36242DC76 | $0.00         |       | $0.00          |  | $0.00                   | 
|200507                     | R-1     | 36242DC76 | $0.00         |       | $0.00          |  | $0.00                   | 
|200508                     | R-1     | 36242DC76 | $0.00         |       | $0.00          |  | $0.00                   | 
|200509                     | R-1     | 36242DC76 | $0.00         |       | $0.00          |  | $0.00                   | 
|200510                     | R-1     | 36242DC76 | $0.00         |       | $0.00          |  | $0.00                   | 
|200511                     | R-1     | 36242DC76 | $0.00         |       | $0.00          |  | $0.00                   | 
|200512                     | R-1     | 36242DC76 | $0.00         |       | $0.00          |  | $0.00                   | 
|                           |         |           |               |       |                |  |                         |  |                 |  |           |  |  |  |                | 
|                           |         |           |               |       |                |  | $0.00                   |  | $0.00           |  |           |  | 
|200504                     | R-2     | 36242DR21 | $0.00         |       | $0.00          |  | $0.00                   | 
|200505                     | R-2     | 36242DR21 | $0.00         |       | $0.00          |  | $0.00                   | 
|200506                     | R-2     | 36242DR21 | $0.00         |       | $0.00          |  | $0.00                   | 
|200507                     | R-2     | 36242DR21 | $0.00         |       | $0.00          |  | $0.00                   | 
|200508                     | R-2     | 36242DR21 | $0.00         |       | $0.00          |  | $0.00                   | 
|200509                     | R-2     | 36242DR21 | $0.00         |       | $0.00          |  | $0.00                   | 
|200510                     | R-2     | 36242DR21 | $0.00         |       | $0.00          |  | $0.00                   | 
|200511                     | R-2     | 36242DR21 | $0.00         |       | $0.00          |  | $0.00                   | 
|200512                     | R-2     | 36242DR21 | $0.00         |       | $0.00          |  | $0.00                   | 
|                           |         |           |               |       |                |  |                         |  |                 |  |           |  |  |  |                | 
|                           |         |           |               |       |                |  | $0.00                   |  | $0.00           |  |           |  | 
|200504                     | REMIC-1 | GS05X1101 | $2,155,387.33 |       | $9,207,301.13  |  | $247,107,856.43         | 
|200505                     | REMIC-1 | GS05X1101 | $778,690.50   |       | $9,871,783.41  |  | $238,533,440.57         | 
|200506                     | REMIC-1 | GS05X1101 | $815,625.84   |       | $10,300,417.62 |  | $229,402,754.01         | 
|200507                     | REMIC-1 | GS05X1101 | $733,995.41   |       | $14,030,637.48 |  | $216,564,191.06         | 
|200508                     | REMIC-1 | GS05X1101 | $1,816,392.11 |       | $12,311,193.24 |  | $204,252,997.82         | 
|200509                     | REMIC-1 | GS05X1101 | $1,700,443.91 |       | $13,298,186.79 |  | $190,954,811.03         | 
|200510                     | REMIC-1 | GS05X1101 | $1,539,896.22 |       | $15,164,082.25 |  | $175,790,728.78         | 
|200511                     | REMIC-1 | GS05X1101 | $1,115,313.64 |       | $13,871,320.20 |  | $161,919,408.58         | 
|200512                     | REMIC-1 | GS05X1101 | $1,067,628.66 |       | $16,674,441.60 |  | $145,244,966.98         | 
|                           |         |           |               |       |                |  |                         |  |                 |  |           |  |  |  |                | 
|                           |         |           |               |       |                |  | $11,723,373.62          |  | $114,729,363.72 |  |           |  | 
|200504                     | X       | 36242DC43 | $1,590,078.08 |       | $0.00          |  | $257,157.56             | 
|200505                     | X       | 36242DC43 | $0.00         |       | $0.00          |  | $1,554,525.11           | 
|200506                     | X       | 36242DC43 | $0.00         |       | $0.00          |  | $2,724,256.17           | 
|200507                     | X       | 36242DC43 | $0.00         |       | $0.00          |  | $3,916,330.70           | 
|200508                     | X       | 36242DC43 | $0.00         |       | $0.00          |  | $4,967,410.80           | 
|200509                     | X       | 36242DC43 | $0.00         |       | $0.00          |  | $5,904,283.60           | 
|200510                     | X       | 36242DC43 | $0.00         |       | $0.00          |  | $6,752,200.39           | 
|200511                     | X       | 36242DC43 | $0.00         |       | $0.00          |  | $7,177,909.34           | 
|200512                     | X       | 36242DC43 | $0.00         |       | $0.00          |  | $7,580,277.93           | 
|                           |         |           |               |       |                |  |                         |  |                 |  |           |  |  |  |                | 
|                           |         |           |               |       |                |  | $1,590,078.08           |  | $0.00           |  |           |  | 
|200504                     | X-1     | 36242DC50 | $0.00         |       | $0.00          |  | $0.00                   | 
|200505                     | X-1     | 36242DC50 | $0.00         |       | $0.00          |  | $0.00                   | 
|200506                     | X-1     | 36242DC50 | $0.00         |       | $0.00          |  | $0.00                   | 
|200507                     | X-1     | 36242DC50 | $0.00         |       | $0.00          |  | $0.00                   | 
|200508                     | X-1     | 36242DC50 | $0.00         |       | $0.00          |  | $0.00                   | 
|200509                     | X-1     | 36242DC50 | $0.00         |       | $0.00          |  | $0.00                   | 
|200510                     | X-1     | 36242DC50 | $0.00         |       | $0.00          |  | $0.00                   | 
|200511                     | X-1     | 36242DC50 | $0.00         |       | $0.00          |  | $0.00                   | 
|200512                     | X-1     | 36242DC50 | $0.00         |       | $0.00          |  | $0.00                   | 
|                           |         |           |               |       |                |  |                         |  |                 |  |           |  |  |  |                | 
|                           |         |           |               |       |                |  | $0.00                   |  | $0.00           |  |           |  | 
|                           |         |           |               |       |                |  | $22,681,019.48          |  | $233,122,674.67 |  |           |  |