Applies
Oklahoma uses a six-bracket progressive income tax in 2025 with a top marginal rate of 4.75% applied above $7,200 of taxable income for single filers. HB 2764, signed in 2025, flattens to three brackets and lowers the top rate to 4.5% beginning tax year 2026. The employee pre-tax stack is therefore federal marginal plus 7.65% FICA plus 4.5%-4.75% Oklahoma - about 30-40 cents of savings per Section 125 dollar for a mid-bracket household. Matchbook recomputes marginal stacks per household at the 2026 rate.