Khonkaen United (Thai Premier League): every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-07-22 | Wasusiwakit Phosririt | Rayong | Khonkaen United | Free |
| 2026-07-22 | Player | Chiangmai | Khonkaen United | Free |
| 2026-07-22 | Kim Ji-Min | Khonkaen United | Rasisalai United | Free |
| 2026-07-22 | Player | Hougang United | Khonkaen United | Free |
| 2026-07-22 | Arthit Bootjinda | Khonkaen United | Uthai Thani | Free |
| 2026-07-22 | Siriwat Ingkaew | Khonkaen United | Ayutthaya United | Free |
| 2026-07-22 | Player | Khonkaen United | Chanthaburi | Free |
| 2026-07-22 | Chainarong Boonkerd | Rayong | Khonkaen United | Free |
| 2026-07-22 | Nopphon Phonkam | Khonkaen United | Muang Loei United | Free |
| 2026-07-22 | Player | Khonkaen United | Chanthaburi | Free |
| 2026-07-22 | Jetsada Batchari | Chanthaburi | Khonkaen United | Free |
| 2026-07-22 | Player | Nakhon Si Thammarat | Khonkaen United | Free |
| 2026-07-22 | Player | Khonkaen United | Rayong | Free |
| 2026-07-22 | Panupong Hansuri | Khonkaen United | Chanthaburi | Free |
| 2026-07-22 | Niphitpon Hadchan | Khonkaen United | Phrae United | Free |
| 2026-07-22 | Phanuphong Phonsa | Khonkaen United | Chanthaburi | Free |
| 2026-07-22 | Jakkrapong Sanmahung | Chonburi FC | Khonkaen United | Loan |
| 2026-07-22 | Ongsa Singthong | Singha Chiangrai United | Khonkaen United | Free |
| 2026-07-22 | Weerawat Jiraphaksiri | Police Tero FC | Khonkaen United | Free |
| 2026-07-22 | Rosalvo | Persijap | Khonkaen United | Free |