The 2023 summer transfer window for Premier League clubs opened on June 14 and closed at 11:00 PM BST on Friday, September 1, 2023. Clubs had a two-hour window after the official closing time to complete signings if the deal sheet was submitted, and international transfers via the FIFA Transfer Matching System had a deadline of midnight on the same day. Other major European leagues also closed their windows on September 1, but at varying times during the day depending on the league.