The Whites are aiming for PDL glory and bragging rights when the Blues head to LS11 for the 12:30 kick-off.
United will be crowned national champions should they be victorious in the one-off clash, with extra-time and penalties in play if required.
Carlos Corberan's side wrapped up the PDL North title with room to spare which set-up a play-off semi-final clash with southern runners-up Coventry City.
Leeds saw off the Sky Blues in dramatic circumstances with a 3-2 victory as Kun Temenuzhkov struck in extra-time to seal a spot in the final.
Birmingham, who finished second behind United in the north, made light word of Ipswich Town as they ran out 3-0 winners to earn their shot at the PDL title.
United are yet to beat their counterparts this season having fallen to a 3-0 defeat at Thorp Arch before a 96th minute Izzy Brown goal earned a 2-2 draw in the reverse fixture.
The Whites welcome the Blues to Elland Road on Monday lunchtime with free entry for any supporters wishing to attend.