Matches were scheduled to be played at the stadium of the team named first on the date specified for each round, which was always a Saturday. If scores were level after 90 minutes had been played, a replay would take place at the stadium of the second-named team later the same week. If the replayed match was drawn further replays would be held at neutral venues until a winner was determined. If scores were level after 90 minutes had been played in a replay, a 30-minute period of extra time would be played.
Calendar
The format of the FA Cup for the season had two preliminary rounds, six qualifying rounds, four proper rounds, and the semi-finals and final.
Round
Date
Extra preliminary round
Saturday 13 September 1919
Preliminary round
Saturday 27 September 1919
First round qualifying
Saturday 11 October 1919
Second round qualifying
Saturday 25 October 1919
Third round qualifying
Saturday 8 November 1919
Fourth round qualifying
Saturday 22 November 1919
Fifth round qualifying
Saturday 6 December 1919
Sixth round qualifying
Saturday 20 December 1919
First round proper
Saturday 10 January 1920
Second round proper
Saturday 31 January 1920
Third round proper
Saturday 21 February 1920
Fourth round proper
Saturday 6 March 1920
Semi-finals
Saturday 27 March 1920
Final
Saturday 24 April 1920
Qualifying rounds
Participant numbers were down on previous editions of the tournament after many clubs from the lower levels of the English football pyramid (such as it was at the time) did not resume operations after the First World War. Local leagues across the country were hit hard by the heavy loss of players during the years of conflict, while other clubs such as Croydon Common from competitions as strong as the Southern League First Division were wound up after their income streams disappeared during the four-season long competitive hiatus.
42 of the 44 clubs from the First and Second divisions joined the 12 clubs who came through the qualifying rounds. The other two sides, Port Vale and Rotherham County, were entered in the sixth qualifying round with Port Vale progressing and Rotherham going out to West Stanley.
Ten non-league sides were given byes to the first round to bring the total number of teams up to 64. These were:
The 16 Second Round matches were played on Saturday, 31 January 1920. One match was drawn, with the replay taking place in the following midweek fixture.