Restoring Fuel Market Freedom Act of 2023 This bill repeals various alternative fuels tax credits, including the tax credits for (1) alcohol used as fuel; (2) biodiesel and renewable diesel used as fuel; (3) sustainable aviation fuel; (4) clean fuel production; and (5) alcohol fuel, biodiesel, and alternative fuel mixtures. It also repeals the inclusion in gross income of alcohol and biodiesel fuels and payments for certain fuels not used for taxable purposes.