Self-Employment Tax Calculator
Enter your net self-employment income to calculate SE tax and quarterly estimated payments.
Self-employed workers pay both halves of Social Security and Medicare tax — 15.3% on 92.35% of net income. This calculator computes your SE tax, the deductible half (which reduces your AGI), estimated federal income tax, total tax burden, and recommended quarterly estimated tax payments.
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Last reviewed: April 2026Report an error
Total Tax Estimate
$19,501
SE tax: $11,304 + Income tax: $8,198 = $19,501 total. Effective rate: 24.4%. Pay $4,875/quarter.
SE Tax (15.3%)
$11,304
Deductible Half
$5,652
Income Tax Est.
$8,198
Quarterly Payment
$4,875
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How to Use This SE Tax Calculator
- Enter your net self-employment income (revenue minus business expenses).
- Select your filing status.
- Add any other income if applicable.
- Read SE tax, deductible half, estimated income tax, and quarterly payment amount.
Frequently Asked Questions
- SE tax is 15.3% on net SE income up to the Social Security wage base ($176,100 for 2026), then 2.9% (Medicare only) above that. You multiply net income by 0.9235 first.
- Yes — you can deduct half of SE tax from gross income (above-the-line deduction), reducing your adjusted gross income and thus your income tax.
- Typically April 15, June 15, September 15, and January 15. If you expect to owe $1,000 or more in taxes, you must pay estimated taxes to avoid penalties.
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