You’ll be paying more when the kid goes back to Mizzou this fall. Tuition at M-U and three other colleges will go up by 4 – percent. The undergrad tuition hike includes Missouri S and T, UM-KC and UM-SL. Mizzou’s tuition is going up about $20 – a credit hour to just shy of $500. Curators say tuition rates have gone up all across the SEC Conference.