Updated 5 Oct 2026, window 1 Jun 2026 to 30 May 2027
| Player | Date | Type | From | To |
|---|---|---|---|---|
| 5 Oct 2026 | Perm | Sunderland U21 | Sunderland | |
| 1 Sept 2026 | Perm | Lyon | Sunderland | |
| 1 Sept 2026Until 30 Jun 2027 | Loan | Tottenham | Sunderland | |
| 24 Aug 2026 | Perm | Antwerp | Sunderland | |
| 21 Aug 2026 | Perm | Toulouse | Sunderland | |
| 15 Jul 2026 | Perm | Lille | Sunderland | |
| 30 Jun 2026Until 1 Sept 2026 | Return | Moreirense | Sunderland | |
| 30 Jun 2026Until 27 Aug 2026 | Return | Wolfsburg | Sunderland | |
| 30 Jun 2026Until 1 Jul 2026 | Return | Birmingham | Sunderland | |
| 30 Jun 2026 | Return | Middlesbrough | Sunderland | |
| 30 Jun 2026Until 1 Jul 2026 | Return | Arka Gdynia | Sunderland | |
| 30 Jun 2026Until 1 Jul 2026 | Return | Wycombe Wanderers | Sunderland | |
| 30 Jun 2026Until 16 Jul 2026 | Return | Le Havre | Sunderland | |
| 30 Jun 2026 | Return | Ipswich | Sunderland | |
| 30 Jun 2026 | Return | Portsmouth | Sunderland | |
| 30 Jun 2026Until 10 Aug 2026 | Return | Lens | Sunderland | |
| 30 Jun 2026Until 11 Aug 2026 | Return | Sheffield Utd | Sunderland | |
| 30 Jun 2026Until 1 Jul 2026 | Return | Millwall | Sunderland | |
| 30 Jun 2026Until 2 Sept 2026 | Return | Monaco | Sunderland |
| Player | Date | Type | From | To |
|---|---|---|---|---|
| 2 Sept 2026Until 30 Jun 2027 | Loan | Sunderland | Ajax | |
| 1 Sept 2026 | Perm | Sunderland | Clermont | |
| 27 Aug 2026Until 31 May 2027 | Loan | Sunderland | Swansea | |
| 11 Aug 2026 | Perm | Sunderland | Mechelen | |
| 10 Aug 2026 | Perm | Sunderland | Konyaspor | |
| 16 Jul 2026 | Perm | Sunderland | Le Havre | |
| 5 Jul 2026 | Perm | Sunderland | Rennes | |
| 1 Jul 2026 | Perm | Sunderland | Rangers | |
| 1 Jul 2026 | Perm | Sunderland | Karpaty | |
| 1 Jul 2026Until 12 Sept 2026 | Free | Sunderland | Released | |
| 1 Jul 2026 | Free | Sunderland | Released | |
| 1 Jul 2026Until 30 Jun 2027 | Loan | Sunderland | Partizan | |
| 1 Jul 2026 | Perm | Sunderland | York City | |
| 1 Jul 2026 | Perm | Sunderland | Birmingham | |
| 1 Jul 2026 | Free | Sunderland | Peterborough United | |
| 1 Jul 2026 | Perm | Sunderland | Wrexham | |
| 30 Jun 2026Until 21 Aug 2026 | Return | Sunderland | Leipzig |