Self-Employment Tax Estimator
See your estimated 2025 SE tax in seconds.
Self-employment tax is the 15.3% that covers Social Security and Medicare on your net 1099 / Schedule C profit. Enter your numbers below for a 2025 estimate, then call to have them verified and your quarterly payments planned.
Self-Employment Tax Estimator
Estimate the Social Security and Medicare (SE) tax on your 1099 / Schedule C profit for 2025.
- Net earnings subject to SE tax (92.35%)$0
- Social Security portion (12.4%)$0
- Medicare portion (2.9%)$0
- Deductible half (reduces income tax)$0
- Set aside per quarter (rough)$0
Want Chris to verify these numbers and plan your estimated payments?
Call 603-860-6000Estimate only — actual SE tax depends on your full return. Additional Medicare tax (0.9%) may apply at higher incomes. Not tax advice.
How the estimate works
SE tax applies to 92.35% of your net self-employment profit: 12.4% for Social Security (up to the 2025 wage base of $176,100, reduced by any W-2 wages already taxed for Social Security) plus 2.9% for Medicare on all of it. Half of the SE tax is deductible against your income tax.
Want the full picture? Read the Self-Employment Tax Guide or the quarterly estimated taxes walkthrough.
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