Self-Employment Tax Calculator
2026 tax yearFigure your 2026 self-employment tax the way Schedule SE does: the Social Security and Medicare parts, the half you can deduct, and how a W-2 job changes the result.
Try an example
Your self-employment tax
Self-employment tax
$0
- Social Security (12.4%)
- $0
- Medicare (2.9%)
- $0
- Deductible half (lowers income tax)
- $0
- Additional Medicare Tax (0.9%, Form 8959)
- $0
How the numbers are figured
This calculator gives a general estimate for educational purposes only. It isn't personalized financial or tax advice. It covers one person's self-employment income from a regular business; it doesn't handle farm income, church employee income, the optional methods or a spouse's own self-employment income. Self-employment tax is only part of what you owe: income tax comes on top. Read the full Financial Disclaimer.
Related guides
- Self-Employment Tax Explained: the 92.35% base, the Social Security cap and the deductible half
- How Much Should I Set Aside for Taxes as a Freelancer?: self-employment tax plus income tax, by income level
- Does a Solo 401(k) Reduce Self-Employment Tax?: why a retirement contribution leaves this number alone
- Freelance Tax Calculator: add federal and state income tax, and see what to set aside
- Quarterly Estimated Tax Calculator: add income tax and get your payments
- Quarterly Estimated Taxes 2026: how to pay it through the year
- Home Office Deduction: a deduction that lowers the profit this tax is figured on
Sources
The official, primary sources behind the figures and rules on this page.