Mumbai City: every transfer in and out, fees paid and earned, squad market value, €777k spent and €539k earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-08-23 | Leandro Otormín | Oriente Petrolero | Mumbai City | Free |
| 2026-08-23 | Sergio Llamas | Inter Kashi | Mumbai City | Free |
| 2026-08-22 | Carlos Delgado | Odisha FC | Mumbai City | Free |
| 2026-08-22 | Joni Kauko | Mumbai City | SalPa | Free |
| 2026-08-19 | Saúl Crespo | East Bengal FC | Mumbai City | Free |
| 2026-08-02 | Ashish Sibi | Dempo | Mumbai City | Free |
| 2026-08-01 | Lallianzuala Chhangte | Mumbai City | Mohun Bagan SG | Free |
| 2026-07-29 | Nuno Reis | Mumbai City | Chennaiyin FC | Free |
| 2026-01-15 | Jon Toral | Mumbai City | Persik Kediri | Free |
| 2025-10-09 | Bijay Chhetri | Colón | Mumbai City | Free |
| 2025-08-23 | Mehtab Singh | Mumbai City | Mohun Bagan SG | €313k |
| 2025-08-06 | Yoëll van Nieff | Mumbai City | Anorthosis | Free |
| 2025-07-23 | Seilenthang Lotjem | Mumbai City | Namdhari | Loan |
| 2025-07-16 | Daniel Lalhlimpuia | Mumbai City | Jamshedpur | Free |
| 2025-07-15 | Jayesh Rane | Mumbai City | Jamshedpur | Free |
| 2025-07-13 | Th. Bipin Singh | Mumbai City | East Bengal FC | Free |
| 2025-06-17 | Jorge Pereyra Díaz | Bengaluru FC | Mumbai City | Free |
| 2025-06-16 | Zothanpuia | Aizawl | Mumbai City | Free |
| 2025-06-12 | Lalnuntluanga Bawitlung | Sreenidi Deccan | Mumbai City | Free |
| 2025-06-12 | Amey Ganesh Ranawade | Mumbai City | Kerala Blasters | Free |