Tottenham have agreed an extension until 30 April on their decision to play home games at Wembley next season.
The club said it had been agreed "to give ourselves greater flexibility before making the final decision on the decommissioning of White Hart Lane".
Spurs said their "intention remains" to move to Wembley for 2017-2018, "before returning to our new stadium in Tottenham for the 2018-19 season".
They had been due to notify the Football Association by Friday.
Chairman Daniel Levy has previously said the club was seeking "greater certainty" over the delivery of the new stadium, before committing to the move.