Paycheck Simulator

The US federal income tax system uses progressive brackets, meaning different portions of your income are taxed at different rates. Only the dollars that fall within a given bracket are taxed at that bracket's rate — not your entire income. A single filer earning $75,000 in 2025 pays 10% on the first $11,925, 12% on income up to $48,475, and 22% on the remainder above that threshold.

This architecture is why your effective tax rate is always lower than your marginal rate. Confusing the two is one of the most common financial mistakes. Someone in the 22% bracket does not pay 22% on all $75,000 — they pay a blended average of around 13–14%. The marginal rate matters most when evaluating the benefit of additional income or additional deductions, because it tells you the rate at which the next dollar of income would be taxed — or the rate at which a new deduction would reduce your bill.

Pre-tax deductions — 401(k) contributions, health insurance premiums, flexible spending accounts, and health savings accounts — are subtracted from gross pay before income taxes are calculated. This mechanism means every dollar contributed reduces your taxable income by exactly one dollar, which at the 22% federal bracket plus applicable state tax saves you approximately $0.25–$0.35 in taxes per contributed dollar depending on your state of residence.

A 6% 401(k) contribution on a $75,000 salary diverts $4,500 from your taxable income, potentially saving $990–$1,080 in federal taxes alone — before any state tax reduction is counted. Effectively, the federal government is subsidizing roughly 22–30 cents of every retirement dollar you save. For employees who receive employer matching, the combined tax benefit plus match makes 401(k) contributions up to the match threshold one of the highest-certainty, highest-return financial moves available to a working person. The Take-Home tab in this calculator shows exactly how each pre-tax contribution shifts your net paycheck in real time as you adjust the amounts.

Unlike federal income tax, which has progressive brackets and allows for deductions, FICA taxes are flat-rate and nearly universal. Every dollar of wages up to $176,100 (2025) is subject to the 6.2% Social Security tax. All wages, with no cap, are subject to the 1.45% Medicare tax. High earners above $200,000 (single) pay an additional 0.9% Medicare surtax, bringing their total Medicare rate to 2.35% on earnings above the threshold.

Together, Social Security and Medicare represent 7.65% of your wages — a meaningful slice that often surprises first-time earners. Unlike income tax, FICA has no deductions and no adjustments for filing status. Your employer matches this 7.65% separately, meaning the total employment cost of your salary is actually 7.65% higher than your gross pay. Understanding FICA helps set realistic take-home expectations when comparing a $70,000 salary offer to a $65,000 offer with generous benefits — the benefits that reduce taxable income can narrow that gap significantly.

Your state of residence can significantly alter your net paycheck. Nine states impose no personal income tax — Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming — while high-tax states like California (up to 13.3%) and New York (up to 10.9% combined with New York City rates) can claim an additional 7–15% of your income depending on your earnings level and specific locality surcharges.

For a single filer earning $100,000, the state and local tax difference between Texas and California amounts to roughly $6,000–$8,000 per year in additional take-home pay — a differential large enough to materially affect how quickly you can build retirement savings, reach a down payment goal, or eliminate high-interest debt. The state comparison tool in this calculator lets you enter any two states and see the precise net pay difference at your specific income level, making it especially useful when weighing remote-work relocation options, multi-state job offers, or retirement location decisions where state tax burden is a major long-term financial variable.