How much self-employment tax will I owe for 2025?
Estimate 2025 or 2026 self-employment (SECA) tax from your net profit. The calculator applies the 92.35% SE income adjustment, Social Security wage base, and Medicare rates to show total SE tax and the deductible half you can claim on your return.
How this calculation works
- Applies the 92.35% adjustment to net profit to get SE earnings.
- Calculates Social Security and Medicare portions using IRS rates and wage bases.
- Computes total SE tax and the deductible half of SE tax.
Common mistakes and caveats
- W-2 wages can reduce the Social Security portion subject to SE tax.
- Additional Medicare tax and special cases may not be fully modeled.
- This estimate is federal only; state rules vary.
FAQ
Does this include the deduction for half of SE tax?
Yes. The estimate shows total SE tax and the deductible portion you can claim on Form 1040.
TaxGuide Pro provides free state and federal tax calculators for individuals, freelancers, and small businesses.