Treaty United (First Division): every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2025-07-26 | Matt Boylan | St Patrick's | Treaty United | Free |
| 2025-07-10 | Patrick Ferry | Finn Harps | Treaty United | Free |
| 2025-07-10 | Brian Cunningham | Galway United | Treaty United | Free |
| 2025-02-09 | Karl O'Sullivan | Galway United | Treaty United | Free |
| 2025-02-03 | Joe Hanson | Valour | Treaty United | Free |
| 2025-01-17 | Player | Galway United | Treaty United | Loan |
| 2025-01-17 | Steven Healy | Galway United | Treaty United | Loan |
| 2025-01-01 | Player | Kerry | Treaty United | Free |
| 2025-01-01 | A. O'Halloran | Treaty United | Galway United | Free |
| 2024-07-04 | Steven Healy | Galway United | Treaty United | Loan |
| 2024-07-03 | Lee Lynch | Coleraine | Treaty United | Free |
| 2024-02-27 | Mark Byrne | Sligo Rovers | Treaty United | Free |
| 2024-01-18 | A. O'Halloran | Galway United | Treaty United | Free |
| 2024-01-08 | Player | Galway United | Treaty United | Loan |
| 2024-01-07 | Player | Galway United | Treaty United | Free |
| 2024-01-01 | Oisin O'Reilly | Galway United | Treaty United | Free |
| 2024-01-01 | Evan O'Connor | Galway United | Treaty United | Free |
| 2024-01-01 | Adam Lennon | Treaty United | Free | |
| 2024-01-01 | Success Edogun | Treaty United | Finn Harps | Free |
| 2024-01-01 | Andrew Spain | Treaty United | Kerry | Free |