Barnsley: every transfer in and out, fees paid and earned, squad market value, €17m spent and €35m earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-08-18 | M. de Gevigney | Barnsley | Silkeborg IF | Free |
| 2026-08-05 | Charlie Lennon | Barnsley | Yeovil Town | Loan |
| 2026-07-31 | Sam Gale | Gillingham | Barnsley | Free |
| 2026-07-16 | Makenzie Kirk | Portsmouth | Barnsley | Loan |
| 2026-07-16 | Max Watters | Barnsley | Port Vale | Free |
| 2026-07-15 | Amani Richards | Leicester U21 | Barnsley | Free |
| 2026-07-14 | Tyrese Noslin | SC Telstar | Barnsley | €300k |
| 2026-07-02 | Clayton Taylor | Newcastle United Jets | Barnsley | Free |
| 2026-07-01 | Cameron McGeehan | Northampton Town | Barnsley | Free |
| 2026-07-01 | Jon Russell | Barnsley | Mansfield Town | Free |
| 2026-07-01 | Adam Phillips | Barnsley | Bradford | Free |
| 2026-07-01 | David McGoldrick | Barnsley | Mansfield Town | Free |
| 2026-07-01 | Andrew Dallas | Barnsley | Walsall | Free |
| 2026-07-01 | Eoghan O'Connell | Barnsley | Stockport | Free |
| 2026-07-01 | Jackson Smith | Barnsley | Port Vale | Free |
| 2026-02-23 | Barry Cotter | Barnsley | Derry City | Free |
| 2026-02-02 | Tom Bradshaw | Oxford United | Barnsley | Loan |
| 2026-02-02 | Davis Keillor-Dunn | Barnsley | Wrexham | Free |
| 2026-01-30 | Tawanda Chirewa | Wolves | Barnsley | Loan |
| 2026-01-26 | Scott Banks | FC St. Pauli | Barnsley | Loan |