During a press conference on December 29, 2021, at the State Capitol, Governor Parson announced Wayne Wallingford to head the Department of Revenue, effective January 3, 2022.

"Wayne has proven himself as a leader in state government and has extensive executive level management experience in the corporate world and as a decorated U.S. military veteran," Governor Parson said. "We look forward to him implementing his vision at the Department of Revenue and providing the best possible service to the citizens of Missouri."

Wallingford served in the Missouri State Senate from 2013 - 2020 and currently serves as a member of the Missouri House of Representatives. 

Wallingford has also served as the Chief People Officer for the McDonald's corporation in Southeast Missouri, as the Vice President of Operations for iSOLD IT in Central Missouri, and in various regional management positions for the Taco Bell corporation.

In his nearly 25 years in the United States Air Force, he served as Chief of the Intelligence Division in the U.K. and Chief of the Electronic Intelligence Analysis Division in Hawaii, among other positions.