Oklahoma Bonus Tax Calculator 2025 — 4.5% Supplemental Rate

Work out the tax on a bonus in Oklahoma — federal 22%, FICA, and a 4.5% state supplemental rate. Instant, in your browser.

Free Oklahoma bonus tax calculator for 2025. Enter a bonus to see federal supplemental withholding (22%, or 37% above $1,000,000), Social Security and Medicare (FICA), and Oklahoma state withholding (4.5%) — with your real take-home pay. Runs entirely in your browser; no data sent to any server.

What is the bonus tax rate in Oklahoma for 2025?

Oklahoma withholds supplemental wages such as bonuses at a flat 4.5% for 2025. That is on top of the federal flat supplemental rate of 22% (37% on the portion above $1,000,000) and FICA.

Oklahoma Bonus Tax Calculator 2025

A bonus is a supplemental wage, and it is taxed differently from a normal paycheck. The federal government withholds a flat 22% on supplemental wages up to $1,000,000 in a year (37% on anything above that), plus FICA. Oklahoma withholds supplemental wages such as bonuses at a flat 4.5%.

Enter your bonus below. The calculator shows federal supplemental withholding, Social Security (6.2% up to the $176,100 wage base) and Medicare (1.45%, plus 0.9% above $200,000), the Oklahoma state portion, and your real take-home. Everything runs in your browser — no amounts or personal data are transmitted.

Important: Oklahoma withholds supplemental wages at a flat 4.5%. Verify the current figure with the Oklahoma Tax Commission.