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Self-Employment Tax Calculator
Estimate the tax you owe on freelance and founder income.
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US figures, 2025 rates. General estimate only — not tax advice. Excludes income tax, the additional 0.9% Medicare surtax and any W-2 wages.
$
Estimated Self-Employment Tax
$11,304
≈ 14.1% of your net income
Social Security (12.4%)
$9,161
Medicare (2.9%)
$2,143
Deductible Half
$5,652
Quarterly Payment
$2,826
SE tax = 15.3% on 92.35% of net income (SS capped at $176,100).