Self-Employment Tax Calculator
Calculate your self-employment tax including Social Security and Medicare contributions.
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Self-Employment Income
Net self-employment income is your gross income minus business expenses (Schedule C line 31).
Self-Employment Tax
Tax Benefit
This amount can be deducted on Form 1040, reducing your adjusted gross income.
SE Tax Rate Breakdown
- Social Security: 12.4% (up to wage base)
- Medicare: 2.9% (all income)
- Additional Medicare: 0.9% above the filing-status threshold
Self-employed individuals pay both the employer and employee portions of Social Security and Medicare taxes. The tax is calculated on 92.35% of net earnings, and half of the regular SE tax is deductible. Additional Medicare tax is excluded from that deduction.
How it works›
Model and assumptions. Applies the modeled self-employment earnings adjustment, Social Security cap and Medicare rules, including other entered wages. It separately estimates the deductible employer-equivalent portion. This is not a complete income-tax return or an eligibility determination.IRS: self-employment tax