The 2021 summer transfer window dates are very similar to 2019 -- the last regular window before the coronavirus pandemic hit football throughout 2020.
Clubs are still able to sign players as free agents after the deadline, and as long as they are not officially attached to any club on Aug. 31.
Premier League transfer deadline
The transfer market re-opened on Wednesday, June 9, though most international deals didn't go through until July 1.
In 2019, the window closed at 5:00 p.m. BST on the Thursday before the first day of the season. But the trial of closing the window before the season kicks off is over, and the window will run right through to Aug. 31 at 11 p.m. BST.
- Check out all the latest Premier League transfers
The winter window will run throughout January as usual.
La Liga transfer deadline
The window officially opened on July 1 and will close at 10:59 p.m. BST on Tuesday, Aug. 31. Clubs can still sign free agents after this date and sell or loan players to leagues where the transfer market is still open.
The winter window runs from Jan. 3 to 31.
Serie A transfer deadline
The market opened on July 1 and will close on Tuesday, Aug. 31. In the past it has closed the day before the season began but, like the Premier League, has now fallen back into line with France, Germany and Spain.
The winter window runs from Jan. 3 to 31.
Bundesliga transfer deadline
German set its transfer window closure at 5:00 p.m. BST on Tuesday, Aug. 31. Clubs can still sign free agents after this date and sell or loan players to leagues where the window is still open. The window opened on July 1.
The winter window runs through the whole of January.
Ligue 1 transfer deadline
Ligue 1 opened its window on June 9 and close it on Tuesday, Aug. 31 at 11:59 p.m. BST, with the winter window spanning January.
MLS transfer deadline
Major League Soccer's secondary window closed on Thursday, August 5, though players may still be loaned to the USL Championship and League One teams, and sold or loaned to clubs in foreign leagues.
Later deadlines
A handful of top leagues are expected to still be able to buy players after Aug. 31, with the deadlines:
Sept. 7: Russia
Sept. 8: Turkey
Sept. 22: Mexico, Portugal
Oct. 18: Australia
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