Your 2026 numbers
How it's calculated (2026 Schedule SE)
| Net earnings from self-employment | Net profit × 92.35% |
| Social Security part | 12.4% on net earnings up to $184,500, minus any W-2 Social Security wages |
| Medicare part | 2.9% on all net earnings, no cap |
| Deduction | Half of the self-employment tax is deducted when figuring AGI |
Sources: IRS 2026 Schedule SE (Form 1040) and the SSA 2026 contribution and benefit base ($184,500). SE tax is separate from income tax; use the estimated tax safe-harbor calculator to size your quarterly payments.
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What is the self-employment tax rate for 2026?
15.3%: 12.4% for Social Security on net earnings up to the $184,500 wage base (reduced by any W-2 Social Security wages) and 2.9% for Medicare on all net earnings. It applies to 92.35% of your net self-employment profit.
Do I owe self-employment tax if I made less than $400?
Generally no. If your net earnings from self-employment (net profit times 92.35%) are less than $400, you usually don't owe self-employment tax.
What is the 0.9% Additional Medicare Tax?
An extra 0.9% Medicare tax on combined wages and self-employment earnings above $200,000 (single), $250,000 (married filing jointly) or $125,000 (married filing separately). It's reported on Form 8959, and this calculator shows a rough estimate.
Is self-employment tax the same as income tax?
No. Self-employment tax covers Social Security and Medicare. You also owe regular income tax on your profit, and both are paid through quarterly estimated payments. This is a free planning tool, not tax advice.
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