Timothy Barr served in the Georgia House of Representatives, representing District 103, from 2013 to 2023. During his time in office, he was assigned to several committees, including the House Appropriations Committee, Code Revision Committee (as Chair), Creative Arts & Entertainment Committee, and the Game, Fish, and Parks Committee. He also served on the House Health and Human Services Committee, Motor Vehicles Committee, Natural Resources and Environment Committee, and as Secretary of the Small Business Development Committee.