Slavia Sofia: every transfer in and out, fees paid and earned, squad market value, €70k spent and €15m earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-08-18 | Ilian Avramov Stefanov | Slavia Sofia | Maccabi Herzliya | Free |
| 2026-08-12 | Ilian Avramov Stefanov | Slavia Sofia | Maccabi Herzliya | Free |
| 2026-07-01 | Vladimir Miletic | Napredak | Slavia Sofia | — |
| 2026-07-01 | Dimitar Burov | Montana | Slavia Sofia | Free |
| 2026-07-01 | Yoan Bornosuzov | CSKA Sofia II | Slavia Sofia | Free |
| 2026-07-01 | Vladimir Nikolov | Korona Kielce | Slavia Sofia | Free |
| 2026-07-01 | Ilian Antonov | CSKA Sofia II | Slavia Sofia | Free |
| 2026-07-01 | Martin Georgiev | Botev Plovdiv | Slavia Sofia | Free |
| 2026-07-01 | Kristiyan Balov | Slavia Sofia | Crvena Zvezda | €3m |
| 2026-02-23 | David Malembana | Montana | Slavia Sofia | Free |
| 2026-02-11 | Artem Varganov | Slavia Sofia | Kuban | — |
| 2026-02-11 | Artem Varganov | Slavia Sofia | Urozhay | Free |
| 2026-01-29 | Toni Tasev | Slavia Sofia | Belasitsa | Free |
| 2026-01-07 | Luka Ivanov | Lokomotiv Sofia 1929 | Slavia Sofia | Free |
| 2026-01-06 | Isaac Solet | Slavia Sofia | CSKA Sofia | €500k |
| 2026-01-02 | Martin Georgiev | Slavia Sofia | AEK Athens | €2m |
| 2026-01-02 | Martin Georgiev | Slavia Sofia | AEK Athens | €2m |
| 2025-08-26 | N. Savić | Velez | Slavia Sofia | Free |
| 2025-08-05 | Toni Tasev | Erzurumspor FK | Slavia Sofia | Free |
| 2025-08-01 | Viktor Genev | Slavia Sofia | Rilski Sportist | Free |