Basaksehir FK (Super Lig): every transfer in and out, fees paid and earned, squad market value, €68m spent and €56m earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-09-03 | Saba Kharebashvili | Dinamo Tbilisi | Basaksehir FK | €2.5m |
| 2026-09-03 | Saba Kharebashvili | Dinamo Tbilisi | Basaksehir | €2.5m |
| 2026-07-09 | Hamza Ljukovac | Basaksehir FK | Zrinjski | Free |
| 2026-07-01 | Saba Kharebashvili | Dinamo Tbilisi | Basaksehir FK | €2.5m |
| 2026-07-01 | Léo Duarte | Basaksehir | Atlético-MG | Free |
| 2026-07-01 | Eldor Shomurodov | Roma | Basaksehir | €2.8m |
| 2026-02-06 | Kazımcan Karataş | Galatasaray | Basaksehir | Loan |
| 2026-02-06 | Halit Emre Acun | Basaksehir | Alanya 1221 FSK | Loan |
| 2026-01-15 | Hamza Ljukovac | Basaksehir FK | NS Mura | Loan |
| 2026-01-03 | Ömer Beyaz | Basaksehir | E. Erokspor | Loan |
| 2026-01-03 | Deniz Türüç | Basaksehir | Konyaspor | Free |
| 2025-09-12 | Jakub Kaluzinski | Antalyaspor | Basaksehir | €2m |
| 2025-09-12 | Doğan Alemdar | Stade Rennais | Basaksehir | €1.2m |
| 2025-09-12 | Bertuğ Yıldırım | Stade Rennais | Basaksehir | €2.2m |
| 2025-09-12 | Amine Harit | Marseille | Basaksehir | Loan |
| 2025-09-02 | Patryk Szysz | Basaksehir | Arka Gdynia | Free |
| 2025-08-18 | Lucas Lima | Basaksehir | Boluspor | Free |
| 2025-08-15 | Yağız Dilek | Basaksehir | Kirklarelispor | Loan |
| 2025-08-13 | Matchoi Djaló | Basaksehir | Wisla Plock | Loan |
| 2025-08-08 | Emre Karaal | Basaksehir | Yozgat B. Bozok | — |