
MLS is making the first shift towards aligning with Europe, introducing an extended transfer window for 2026 ahead of the 2027 shift to a flipped schedule, which will see the season play at the same time as Europe’s top competitions.
The summer transfer window for 2026 has been extended, matching it with major European leagues for the first time, the league announced on Thursday. The summer window will now close on Sept. 2, after previously closing on Aug. 21 in 2025 and Aug. 14 in 2024.