How take-home pay is estimated
The calculator subtracts your pre-tax contributions, applies the 2026 standard deduction, then runs the remainder through the 2026 federal tax brackets. Social Security (6.2% up to the annual wage base) and Medicare (1.45%, plus 0.9% on high incomes) are calculated on gross wages, because 401(k) contributions do not reduce payroll taxes.
Why your real paycheck may differ
Actual withholding depends on your W-4 selections, benefits like health premiums, local taxes and whether your state has brackets rather than a flat rate. Treat this as a close planning estimate, and expect the year-end tax return to settle the exact figure.
Frequently asked questions
Does my 401(k) reduce all my taxes?
It reduces federal (and usually state) income tax, but not Social Security or Medicare, which are calculated on gross wages.
Why enter state tax as a percentage?
State income taxes range from 0% to over 13% with different bracket systems. Entering your own effective rate keeps the estimate honest for all 50 states.
Are the 2026 brackets used here official?
Yes — the calculator uses the IRS 2026 federal brackets and standard deduction. Brackets change yearly, so the numbers are updated each January.