Self-Employment Tax Calculator
Estimate your self-employment tax including Social Security and Medicare contributions. See the deductible half and your effective SE tax rate.
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Frequently Asked Questions
What is the self-employment tax rate for 2025?
The combined self-employment tax rate is 15.3%, split into 12.4% for Social Security (on the first $168,600 of net earnings) and 2.9% for Medicare (on all net earnings). The taxable base is 92.35% of net earnings.
Can I deduct self-employment tax?
You can deduct half of your self-employment tax when calculating your adjusted gross income (AGI). This deduction is taken on Schedule 1 of Form 1040 and reduces your income tax, though not the SE tax itself.
Do I owe self-employment tax on all freelance income?
You owe SE tax if your net self-employment earnings are $400 or more in a year. This includes freelance work, gig economy income, and sole proprietor profits reported on Schedule C.
Is there an additional Medicare tax for high earners?
Yes. An additional 0.9% Medicare tax applies to self-employment income above $200,000 (single) or $250,000 (married joint). This calculator computes the base 2.9% Medicare tax only.
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