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. Some matches, however, might be rescheduled for other days if there were clashes with games for other competitions or the weather was inclement. 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 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. This was the last season with the Cup in this format, as from the next season onwards, the fifth and sixth qualifying rounds would be renamed to the First and Second Rounds Proper.
32 matches were scheduled to be played on Saturday, 10 January 1925. Six matches were drawn and went to replays in the following midweek fixture, of which two went to another replay. The Tie 2 replay at Holker Street was Barrow's seventh Cup fixture in a month, as the club's Sixth Qualifying round Tie against Gillingham had gone to a fourth replay.
The 16 Second Round matches were played on Saturday, 31 January 1925. Five matches were drawn, with replays taking place in the following midweek fixture. One of these then went to a second replay played the following week.
The eight Third Round matches were scheduled for Saturday, 21 February 1925. Four matches were drawn and went to replays in the following midweek fixture.
The semi-final matches were played on Saturday, 28 March 1925. The matches ended in victories for Sheffield United and Cardiff City, who went on to meet in the final at Wembley.