The 2025 summer transfer window most notably has these key opening dates:
- The Premier League had an early exceptional registration period from June 1 to June 10 due to the FIFA Club World Cup.
- It then officially reopened on June 16 for the full main summer transfer window.
- Other major European leagues generally reopened their windows on July 1.
Thus, the main summer transfer window opened on June 16, 2025, for the Premier League and on July 1 for most other European top leagues, though an early period was allowed from June 1 to 10 for clubs involved in the Club World Cup.
