
The NFL’s free agency period will officially begin at the start of the new league year on March 15, but free agency will practically begin with the opening of the NFL’s negotiating window on March 13.
On the Monday before Wednesday’s new league year, teams can begin negotiating — but cannot sign — unrestricted free agents from other teams. Any potential contracts negotiated on Monday (March 13) and Tuesday (March 14) can’t become official until Wednesday (March 15).