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No State Income Tax

Washington Self-Employment Tax Calculator 2026

Washington has no state income tax. However, the Business & Occupation (B&O) tax on gross receipts may apply to service businesses. Only federal SE tax applies to self-employment income.

Self-Employment Tax in Washington

The federal self-employment tax rate is 15.3% (12.4% Social Security + 2.9% Medicare) on the first $176,100 of net self-employment income, then 2.9% above that threshold. This applies to all freelancers regardless of state.

Use the Self-Employment Tax Calculator

Enter your net self-employment income below to calculate your exact SE tax obligation.

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Washington Freelancer Tax Summary

Federal SE Tax Rate15.3% (up to $176,100)
Washington State Income TaxNone
SE Tax Deduction (half of SE tax)Deductible from federal AGI
Calculate quarterly payments →Washington quarterly tax calculator →

Tax Information Notice

This content is for informational and educational purposes only. It does not constitute tax, legal, or financial advice. Tax laws change frequently. Always consult a qualified CPA or Enrolled Agent for your specific situation.