Washington 1099 Self-Employment Tax Calculator
Washington has no state income tax. Estimate your self-employment tax, federal and Washington state tax, effective rate, and quarterly payment amounts below.
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Take-home
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- Self-employment tax
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- Federal income tax
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- State income tax
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Quarterly payment vouchers
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Estimates for tax year 2026, for informational purposes only — not tax advice. California's 2026 brackets haven't been published yet, so the most recent confirmed prior-year schedule is used as a placeholder; figures for New York, Ohio, Georgia, Virginia, Arizona, Massachusetts, Utah, Vermont, Maine, Mississippi, Missouri, Colorado, Connecticut, Delaware, Idaho, New Mexico, Oklahoma, and Oregon are drawn from secondary sources pending direct confirmation against the state's own published schedule. Consult a tax professional before filing.
Washington self-employment tax, explained
Washington has no personal income tax on self-employment earnings, but freelancers operating as a business should be aware of the state's separate gross-receipts Business & Occupation (B&O) tax, which applies even in a net-loss year.
Self-employment (SE) tax is the same everywhere — 15.3% of 92.35% of your net profit, split between Social Security (12.4%, up to the annual wage base) and Medicare (2.9%, uncapped). What changes by state is the income tax layer on top: Washington has no state income tax, applied to your taxable income after federal deductions. For filing status, Washington's tax doesn't apply at all, regardless of filing status, since the state has no personal income tax.
Washington state tax at different income levels
Computed directly from Washington's actual 2026 tax structure — a single filer with no other income and no expenses, at increasing levels of net 1099 profit:
| Net profit | Washington state tax | Effective state rate |
|---|---|---|
| $50,000 | $0 | 0.0% |
| $100,000 | $0 | 0.0% |
| $150,000 | $0 | 0.0% |
| $250,000 | $0 | 0.0% |
Washington worked example
A single freelancer in Washington with $75,000 in net 1099 income and no other income:
- Self-employment tax: $10,597
- Federal income tax: $4,898
- Washington state income tax: $0
- Total tax: $15,495 (about 20.7% effective rate)
- Take-home: $59,505
- Quarterly estimated payment: $3,486 per quarter
Try your own numbers in the calculator above — your actual income, expenses, and filing status will change these figures.
Frequently asked questions
What is the Washington state income tax rate for 1099 income?
Washington has no state income tax. Its tax doesn't apply at all, regardless of filing status, since the state has no personal income tax. See the "Washington self-employment tax, explained" section above for how it applies to your specific numbers.
How is self-employment tax calculated?
Self-employment tax is 15.3% of your net self-employment earnings (92.35% of net profit): 12.4% Social Security up to the annual wage base, plus 2.9% Medicare on all net earnings. If your combined income exceeds the Additional Medicare Tax threshold for your filing status, an extra 0.9% applies above that threshold.
What's the difference between self-employment tax and income tax?
Self-employment tax funds Social Security and Medicare — it's the self-employed equivalent of the payroll taxes an employer would otherwise split with you. Federal (and state) income tax is separate, calculated on your taxable income after deductions like the standard deduction and the QBI deduction.
Other West states
- California 1099 tax calculator
- Arizona 1099 tax calculator
- Utah 1099 tax calculator
- Wyoming 1099 tax calculator
- Alaska 1099 tax calculator
- Colorado 1099 tax calculator
- Hawaii 1099 tax calculator
- Idaho 1099 tax calculator
See all 50 states → · ← Back to the main 1099 self-employment tax calculator