Applies
Utah is a flat-tax state. The single rate dropped to 4.55% for tax year 2024 (HB 106, signed March 2024) from 4.65%, and further rate cuts are on the legislative docket. The flat structure means every Utah employee's pre-tax savings stack is federal marginal rate plus 4.55% state plus 7.65% FICA, regardless of income. A $3,300 healthcare FSA election saves about $1,200 for a 22% federal bracket Utah employee (22% + 4.55% + 7.65%). Matchbook recomputes Utah marginal stacks using the flat 4.55% rate and the taxpayer tax credit phaseout, which reduces the effective benefit for higher-income households.