| 29. Round | 28/01/2023 | Harrogate Town | - | Sutton United | 0:1 | ||||
| 30. Round | 04/02/2023 | Sutton United | - | Stevenage FC | 0:0 | ||||
| 31. Round | 11/02/2023 | Hartlepool United | - | Sutton United | 2:2 |  |
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| 32. Round | 14/02/2023 | Sutton United | - | Swindon Town | 2:1 | |
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| 33. Round | 18/02/2023 | Sutton United | - | Doncaster Rovers | 2:0 | ||||
| 34. Round | 25/02/2023 | Newport County | - | Sutton United | 0:2 |  |
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| 35. Round | 04/03/2023 | Sutton United | - | Crewe Alexandra | 1:1 | ||||
| 28. Round | 07/03/2023 | Sutton United | - | Crawley Town | 3:0 | |
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| 36. Round | 11/03/2023 | Barrow AFC | - | Sutton United | 0:0 | ||||
| 37. Round | 14/03/2023 | Sutton United | - | Grimsby Town | 0:1 | ||||
| 39. Round | 01/04/2023 | Walsall FC | - | Sutton United | 1:1 | ||||
| 40. Round | 07/04/2023 | Sutton United | - | Stockport County | 0:1 | ||||
| 41. Round | 10/04/2023 | Bradford City | - | Sutton United | 3:1 | |
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| 42. Round | 15/04/2023 | Sutton United | - | Leyton Orient | 0:2 | |
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| 44. Round | 22/04/2023 | Colchester United | - | Sutton United | 4:1 | ||||
| 45. Round | 29/04/2023 | Rochdale AFC | - | Sutton United | 4:1 | ||||
| 46. Round | 08/05/2023 | Sutton United | - | Carlisle United | 1:1 |
England