Establishes the "Fair Tax Act of 2026" which replaces the state individual and corporate income tax and the estate tax with a tax based on all new retail sales and services

HB 2690 would replace Missouri's individual and corporate income taxes, estate tax, and related deductions with a 5.11% tax on all new retail purchases and services starting in 2028. It requires the state to adjust the tax rate if revenue changes and provides monthly sales tax rebates to qualifying families based on federal poverty guidelines. The bill directly affects all Missouri residents and businesses by shifting tax responsibility from income to consumption. It must be approved by voters in a 2026 referendum to take effect.