Missouri Department of Revenue

MyTax Missouri, operated by the Missouri Department of Revenue, is the state's official online portal for managing tax obligations. It serves individual taxpayers, businesses, and tax professionals who need to file returns, make payments, or register accounts for state taxes such as sales, use, withholding, and corporate income tax. Users can access the platform to check refund status, update business registration information, and manage motor vehicle and driver license-related transactions in some cases. The system supports electronic filing and payment processing, reducing reliance on paper forms and in-person visits to department offices. It functions as the primary digital interface between Missouri residents and businesses and the state agency responsible for tax collection and revenue administration.