The 2018–19 Buildbase FA Vase is the 45th season of the FA Vase, an annual football competition for teams playing below Step 4 of the English National League System. The competition is to be played with two qualifying rounds preceding the six proper rounds, semi-finals (played over two legs) and final to be played at Wembley Stadium. All first-leg ties until the semi-finals are played with extra time if drawn after regulation – first-leg ties may also be resolved with penalties if both teams agree and notify the referee at least 45 minutes before kick-off.