Maine 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. Maine withholds supplemental wages such as bonuses at a flat 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 Maine state portion, and your real take-home. Everything runs in your browser — no amounts or personal data are transmitted.
Important: Maine offers a flat 5% supplemental withholding option for bonuses. Verify the current figure with the Maine Revenue Services.