Sukhothai (Thai Premier League): every transfer in and out, fees paid and earned, squad market value, €20k spent and €800k earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-08-01 | Mateusinho | Sukhothai | Terengganu | Free |
| 2026-08-01 | Romeu | Sukhothai | Ninh Bình | Free |
| 2026-07-22 | John Baggio | Sukhothai | Kanchanaburi | Free |
| 2026-07-22 | Murilo Souza | Southern District | Sukhothai | Free |
| 2026-07-22 | Gustavo Apis | Pattaya United | Sukhothai | Free |
| 2026-07-22 | Apichart Denman | Sukhothai | Kanchanaburi | Free |
| 2026-07-22 | Wattanakorn Sawatlakhorn | SCG Muangthong United | Sukhothai | Free |
| 2026-07-22 | Pattarapon Suksakit | Sukhothai | Singha Chiangrai United | Free |
| 2026-07-22 | Narongsak Naengwongsa | Ayutthaya United | Sukhothai | Free |
| 2026-07-22 | Thirayu Banhan | Sukhothai | Phrae United | Free |
| 2026-07-22 | Phattharaphon Jansuwan | Sukhothai | Satun | Free |
| 2026-07-22 | Siroch Chatthong | Sukhothai | Uthai Thani | Free |
| 2026-07-22 | Jirawat Thongsaengphrao | Chanthaburi | Sukhothai | Free |
| 2026-07-22 | Chaiyaphon Otton | Sukhothai | Port FC | Free |
| 2026-07-10 | Romeu | Sukhothai | TBC | Free |
| 2026-07-01 | John Baggio | Sukhothai | TBC | Free |
| 2026-07-01 | Mateusinho | Sukhothai | TBC | Free |
| 2026-07-01 | Pattarapon Suksakit | Sukhothai | TBC | Free |
| 2026-07-01 | Apichart Denman | Sukhothai | TBC | Free |
| 2026-07-01 | Lursan Thiamrat | Sukhothai | TBC | Free |