Self-Employment Tax Calculator

Calculate the self-employment (SECA) tax you owe on your net profit, plus the deductible half. Estimates 2024 US self-employment (SECA) tax, not tax advice.

Independently verified for accuracy

Calculator by Toolsloft ↗
Self-employment tax
$14,129.55
Deductible half
$7,064.78

This calculator estimates the self-employment (SECA) tax you owe on your net profit and the deductible half you can claim against income. Use it if you are a freelancer, contractor, or sole proprietor planning for quarterly estimates or filing time. It is a 2024 federal estimate and excludes state tax.

How this is calculated

It applies the SECA rate to 92.35% of your net profit, 12.4% for Social Security up to the 2024 wage base of $168,600 and 2.9% for Medicare on the full amount, then halves the result for the deductible portion.

How to use

  1. Enter your net profit from self-employment.
  2. Read the estimated self-employment tax.
  3. Read the deductible half you can claim as an adjustment to income.

Examples

  • $100,000 net profit: SE tax $14,129.55
  • Deductible half: $100,000 → $7,064.78 deductible

FAQ

How is self-employment tax calculated?
It applies a 15.3% rate (12.4% Social Security + 2.9% Medicare) to 92.35% of your net profit, with the Social Security portion capped at the annual wage base.
Is any of the self-employment tax deductible?
Yes. You can deduct one half of your self-employment tax as an adjustment to income on your federal return.
How accurate is this estimate?
This uses 2024 US SECA rates and the 2024 Social Security wage base. It is an estimate only, excludes state taxes, and is not tax advice.

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