Self-Employment Tax Calculator
Calculate self-employment tax, federal income tax and the suggested quarterly estimated payments for freelancers, gig workers and small business owners.
Your numbers
- Self-employment tax
- $12,717
- Income tax
- $5,891
- Quarterly payment
- $4,652
- Effective rate on profit
- 20.68%
- Income tax$5,891
- SE tax$12,717
- After tax$71,392
How the self-employment tax calculator works
SE tax = 15.3% × 92.35% of net profit (12.4% Social Security up to the wage base and 2.9% Medicare). Half of SE tax is deductible. Income tax is then calculated on profit minus half of SE tax and the standard deduction.
Example
Using the default inputs (Net self-employment profit: $90,000; Filing status: Single; Other income (W-2, etc.): $0.00; Apply 20% QBI deduction: Yes), the calculator returns total federal tax of $18,608. Change any field above to see your own result and charts update instantly.
Good for these goals
Frequently asked questions
Why 15.3%?
You pay both the employee and employer shares of Social Security and Medicare.
Can I deduct business expenses?
Yes. Net profit is revenue minus ordinary and necessary business expenses.
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Estimates are for educational purposes only and are not financial, tax or legal advice. Results depend on your inputs and simplified assumptions; tax figures reflect 2026 federal rules and may differ from your situation. See our disclaimer. © 2026 FinanzCalc.