For 2017 / 18 the top 2 teams from each of the 6 step 4 national league divisions will be promoted to the division above i.e. the Isthmian Premier, Northern Premier or Southern Premier. Additionally, the 3rd placed team with the highest points per game across the 6 divisions will also gain automatic promotion.
The play-offs will be contested by the teams finishing 3rd to 6th, but in the division which had the best 3rd placed team the play-offs will be 4th to 7th.
Tables for all 6 divisions are shown below, sorted by points per game.