Self Employment Tax Calculator
Calculate self employment tax with our free Self employment tax Calculator. Compare rates, see projections, and make informed financial decisions.
Reviewed for accuracy by Sahil, Senior Finance & Tax Editor
Self Employment Tax Calculator
Calculator
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Formula: SE Tax = Net Income × 92.35% × 15.3% (12.4% SS + 2.9% Medicare)
Worked example — $11,304 SE tax
Formula
SE Tax = Net Income × 92.35% × 15.3% (12.4% SS + 2.9% Medicare)
Self-employed individuals pay both employer and employee portions of FICA. The 92.35% factor accounts for the employer-equivalent deduction. SS cap: $168,600 (2024).
Worked Examples
Example 1: $80K net income
Problem:Net SE income: $80,000
Solution:Base: $73,880 × 15.3% = $11,304
Result:$11,304 SE tax
Frequently Asked Questions
Why is SE tax ~15.3%?
Employees pay 7.65% FICA and employers match it. Self-employed pay both halves (15.3%). You can deduct half as a business expense.
What is the Social Security wage base for self-employment tax?
For 2024, the Social Security portion of SE tax (12.4%) only applies to net earnings up to $168,600. Above this threshold, you only pay the 2.9% Medicare portion with no cap. High earners above $200,000 also pay an additional 0.9% Additional Medicare Tax on the excess.
Can I reduce my self-employment tax with a business structure?
Yes. By forming an S-corporation and paying yourself a reasonable salary, only the salary portion is subject to SE tax. Profits distributed above the salary as owner distributions are not subject to SE tax, though they are subject to income tax. This strategy can save thousands annually for higher earners but involves additional accounting and compliance costs.
Do I pay SE tax on all business income?
SE tax applies to net self-employment income from a trade or business. The calculator applies the 92.35% factor because you deduct half the SE tax before computing SE income, which approximates the employer-equivalent deduction. Passive rental income is generally not subject to SE tax unless you are a real estate professional.
Reviewed for accuracy by Sahil, Senior Finance & Tax Editor · Editorial policy
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