Self-Employment Tax Calculator 2025–2026

Your business income minus business expenses (Schedule C net).
Sets the Social Security wage cap.
Only affects the high-earner 0.9% Medicare threshold.
Form W-2 box 3 total. This uses up the shared Social Security wage cap.
Form W-2 box 5 total. If filing jointly, include both spouses' box 5 amounts.
-
Net earnings subject to SE tax (92.35%)-
Social Security (12.4%)-
Medicare (2.9%)-
Total self-employment tax-
Deductible half (lowers income tax)-
Set aside per quarter (1040-ES share)-
Effective rate on your profit-

Estimates only — not tax advice.Full calculator, formulas & sources at FreelanceTally →