2012–13 Isthmian League

The 2012–13 season was the 98th season of the Isthmian League, which is an English football competition featuring semi-professional and amateur clubs from London, East and South East England. The constitution of the three divisions was announced on 25 May 2012. For this season, only two clubs were relegated from the Premier Division, and one from each Division One. This was to allow for expansion to 72 clubs for the 2013–14 season.

2012–13 Isthmian League

The 2012–13 season was the 98th season of the Isthmian League, which is an English football competition featuring semi-professional and amateur clubs from London, East and South East England. The constitution of the three divisions was announced on 25 May 2012. For this season, only two clubs were relegated from the Premier Division, and one from each Division One. This was to allow for expansion to 72 clubs for the 2013–14 season.