IRS Self-Employment Tax Calculator
Enter your net business income and instantly see your self-employment tax liability, including Social Security and Medicare portions.
Estimates only. Results are based on the inputs you provide. Consult a qualified professional before acting on the output.
About this tool
Self-employed workers owe both employer and employee portions of Social Security and Medicare taxes—roughly 15.3% of net earnings. Most people underestimate this obligation until tax season arrives. This calculator translates your business income into the exact self-employment tax you owe, breaking down the Social Security and Medicare components so you understand where every dollar goes.
Freelancers, contractors, side-hustle operators, and business owners need to set aside money throughout the year to cover these taxes at filing time. If you've never run this calculation before, or you're unsure whether your estimated payments are on track, this tool gives you immediate clarity on your actual tax liability before April arrives.
A spreadsheet or generic tax site often leaves gaps: unclear rounding, missed deductions, or outdated thresholds. This AI-powered calculator applies current IRS rules and flags scenarios like high-income phase-outs or business losses that affect your final number. The paid report surfaces line-item detail and scenario comparisons that free calculators skip.
Example: A freelancer with $85,000 net income discovers they owe $12,018 in self-employment tax. The paid breakdown shows exactly how much is Social Security versus Medicare, reveals their quarterly payment schedule, and compares what happens if they claim the qualified business deduction—saving them hundreds in overwithholding.
How it works
- Enter your net business income from your last tax return or current estimate.
- See your free self-employment tax calculation and Social Security/Medicare split instantly.
- Get the full breakdown with quarterly payment estimates and tax scenario comparison for $0.99.
What's included in the full report
- Detailed line-item tax calculation (Social Security and Medicare components)
- Quarterly estimated tax payment schedule
- Tax scenario comparison (with and without QBI deduction impact)
- Downloadable PDF report with calculation summary
- High-income phase-out analysis if applicable