Self-Employment Tax Calculator

Use our free Self-Employment Tax Calculator to estimate your self-employment tax based on your net self-employment income, W-2 wages, and filing status. Self-employment tax generally covers Social Security and Medicare taxes for freelancers, independent contractors, sole proprietors, and other self-employed individuals.

The calculator estimates tax on 92.35% of net self-employment earnings, including the 12.4% Social Security tax and 2.9% Medicare tax. It also accounts for the 2026 Social Security wage base of $184,500 and the potential 0.9% Additional Medicare Tax when applicable. The results also show the estimated deduction for one-half of self-employment tax.

Use this calculator to estimate your self-employment tax liability, plan for taxes, and understand how your business income may affect your federal tax obligations.

2026 Self-Employment Tax Calculator

Estimate your 2026 Social Security and Medicare taxes from self-employment income.

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Enter estimated business profit after ordinary and necessary business expenses, not total business revenue.
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Optional. Enter wages already subject to Social Security tax, generally shown in Box 3 of Form W-2.
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Optional. Enter Medicare wages, generally shown in Box 5 of Form W-2.
Filing status is used to estimate Additional Medicare Tax.

Estimated Results

Net self-employment profit $0
Net earnings subject to SE tax $0
Social Security tax $0
Medicare tax $0
Additional Medicare Tax $0
Total estimated self-employment tax $0
Estimated deductible portion $0
How the estimate is calculated

Self-employment tax generally applies to 92.35% of net self-employment profit. Social Security tax is limited by the annual Social Security taxable maximum, while regular Medicare tax has no comparable wage ceiling.

Important: This calculator provides a simplified estimate for educational purposes. It does not calculate federal income tax, state tax, quarterly payment penalties, special Schedule SE methods, church employee income, multiple-business adjustments, community-property rules, partnership adjustments, refundable credits, or every circumstance affecting a tax return. It is not tax, legal, accounting, or financial advice.

Disclaimer
This Self-Employment Tax Calculator provides an estimated self-employment tax amount for general informational and educational purposes only. It is not tax, legal, accounting, or financial advice. Actual self-employment tax may vary based on your business income, expenses, W-2 wages, filing status, Social Security wage base, Additional Medicare Tax, and other individual circumstances. This calculator uses simplified assumptions and does not account for every rule that may apply to Schedule SE, Form 8959, or the federal tax code. Always verify your results using current IRS guidance or consult a qualified tax professional.