The 2019–20 Combined Counties Football League season was the 42nd in the history of the Combined Counties Football League, a football competition in England. Teams were divided into two divisions; the Premier and the First. The season was abandoned on 26 March 2020, due to the COVID-19 pandemic. The constitution was announced on 19 May 2019. This season, the Premier Division champions were to be promoted to Step 4. The runners-up in this division and ten other Step 5 divisions in other leagues were to be ranked according to PPG, and the top four in that ranking would also have been promoted. The remaining seven runners-up would have competed in "winner takes all" play-offs with seven clubs finishing bottom in Step 4 leagues, the winners being placed at Step 4 and the losers at Step 5 for 2020–21. The bottom clubs in all 14 Step 5 divisions were to be ranked according to PPG, and the 12 lowest-ranked clubs were to be relegated to Step 6. In Division One, the top four clubs were to be promoted to Step 5, with the bottom two liable to relegation to Step 7.
League suspension and season abandonment
Despite other leagues suspending all matches from 13 March due to the COVID-19 pandemic, the Combined Counties League continued to hold matches on 14 March, although two clubs refused to travel. The following day, the league postponed all matches until 28 March. On 16 March, the FA decided to postpone all matches across all FA Competitions until 3 April, and a league statement confirmed the postponement of all matches for the foreseeable future. On 26 March 2020, the league season was formally abandoned, with all results being expunged, and no promotion or relegation taking place to, from, or between the two divisions. On 30 March 2020, sixty-six non-league clubs sent an open letter to the Football Association requesting that they reconsider their decision. Jersey Bulls had already amassed sufficient points to be promoted from Division One, but were not promoted after the abandonment.
Division One was increased from 19 to 20 clubs, and featured four new teams after Sheerwater and Frimley Green were promoted to the Premier Division and AC London were expelled:
A.F.C. Hayes, relegated from the Premier Division.
