Self-Employment Tax Calculator
Enter your net business profit to estimate your self-employment tax (15.3% Social Security and Medicare) plus federal income tax — including the deductible half of SE tax and a suggested quarterly payment.
Estimate only. Based on 2024 figures: 15.3% self-employment tax (12.4% Social Security up to the $168,600 wage base + 2.9% Medicare) and the 2024 federal income tax brackets. Does not include state tax or business credits.
How self-employment tax works
When you work for yourself, you pay both the employer and employee share of Social Security and Medicare — a combined 15.3%. It's calculated on 92.35% of your net profit (revenue minus business expenses), with the Social Security portion capped at the annual wage base.
SE tax = 92.35% of net profit × 15.3%
You can deduct half of your SE tax against your income tax, which lowers your overall bill. On top of SE tax you still owe federal income tax on your profit.
Filing 1099 income with no withholding? 1099 tax calculator.
More pay calculators
Salary & take-home calculator
Convert salary to hourly, weekly, bi-weekly and monthly pay, and estimate take-home after taxes.
Open toolOvertime pay calculator
Work out time-and-a-half or double-time pay from your hourly rate and weekly overtime hours.
Open toolPaycheck calculator by state
Estimate your take-home pay after federal, FICA and state income tax for California, Texas, New York and every US state.
Open toolPay raise calculator
See your new salary and the per-paycheck difference from a percentage or dollar-amount raise.
Open toolInflation calculator
See what money from any year is worth today with US CPI data, and check whether your pay raise beats inflation.
Open toolRetro pay calculator
Work out the retroactive (back) pay you're owed from a delayed salary or hourly raise, plus your estimated take-home.
Open tool2025 Tax refund estimator
Estimate your 2025 federal tax refund or balance owed from your income, tax withheld and filing status.
Open toolW-4 withholding calculator
Estimate your per-paycheck federal tax withholding from your W-4 (Steps 1–4) and see what to put on line 4(c) to break even.
Open toolIncome tax calculator by state
Estimate how much federal, FICA and state income tax you'll pay — with your effective and marginal rate — for Texas, New York, Florida and more.
Open toolPro-rata salary calculator
Scale a full-time salary down to part-time hours to see your pro-rata annual, monthly and weekly pay.
Open tool401(k) contribution calculator
See how your 401(k) contribution percentage changes your take-home pay and tax, plus the employer match and what your balance could grow to by retirement.
Open toolHourly to annual salary calculator
See what any hourly wage is per year, month, week and day, with a full $12–$150 an hour conversion table.
Open tool