USA Self-Employment Tax Calculator
USA Self-Employment Tax
Free self-employment tax calculator for 1099 workers
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Formula
SE Tax = 15.3% × (Net Income × 92.35%). Income Tax = Progressive brackets on (income - SE deduction - standard deduction).
Frequently Asked Questions
How is self-employment tax calculated?
SE tax is 15.3% (12.4% SS + 2.9% Medicare) on 92.35% of net self-employment income. SS applies up to $176,100 (2025). Half of SE tax is deductible from income.
When are quarterly estimated tax payments due?
Due dates: April 15, June 15, September 15, and January 15 of the next year. Pay if you expect to owe $1,000+ in tax.
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