401(k) Contribution Calculator

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Paycheck Calculator

See your exact take-home pay after federal taxes, Social Security, and Medicare — updated for 2026 tax brackets.

2026 tax brackets Federal + FICA Free & no signup

See how your 401(k) contributions affect your paycheck, tax savings, and retirement balance. Includes 2025 IRS contribution limits, employer match, and Traditional vs. Roth comparison.

Your income & contributions

Enter % of salary to contribute
Age 50+ unlocks catch-up contributions

Employer match

E.g. 50 = employer matches 50 cents per $1
E.g. 6 = match applies up to 6% of salary

Contribution type

Traditional (pre-tax)
Roth (after-tax)
Compare both
Traditional: Contributions reduce taxable income now — you pay taxes on withdrawals in retirement.
Roth: Contributions made after tax — withdrawals in retirement are completely tax-free.

Growth projection (optional)

Historical S&P 500 avg: ~7% after inflation

Paycheck impact

ItemPer paycheck (bi-weekly)Annual

Contribution limits (2025 IRS)

This calculator uses 2025 IRS 401(k) limits and 2025 federal tax brackets for estimates. State income tax is not included. Results are for educational purposes only and do not constitute financial advice.