The 2021 Trans-Am Series season was the 53rd running of the Trans-Am Series. The National Championship began on February 19 and will run for 14 rounds with one being only for TA2 cars and two only paying points for the Pro/Am Challenge.[1] The Pro/Am Challenge was held for the first time to help SCCA competitors try out Trans Am.[2] Points were given for two specific Pro/Am Challenge races and four other races of competitor's choice in either the national Trans Am Series or the Trans Am West Coast Championship. A separate West Coast Championship was also held with some rounds separate from the national series and some together.