Self employment tax · Washington · 2026
Washington self employment
tax calculator (2026).
Washington has no state income tax on self employment income, so every figure on this page is federal. Income tax is not the only tax a state levies on a business. Enter your net business income to estimate your self employment tax, federal income tax, Washington income tax, and the quarterly payment that keeps you out of penalty range, built for self employed service vendors on Schedule C.
Self employment tax is 15.3% on 92.35% of net profit.
Estimate only: not tax, legal, or financial advice, and provided with no warranty of accuracy. Figures are approximations of 2026 federal + state self employment tax and exclude credits, dependents, other deductions, retirement contributions, and QBI phaseouts above $191,950 single / $383,900 married, among other factors. Verify with a licensed tax professional before relying on these numbers.
How Washington taxes you
Washington has no state income tax on self employment income, so every figure on this page is federal. Income tax is not the only tax a state levies on a business.
No tax on wages or self employment income. Washington does tax high capital gains at 7%.
State brackets verified 2026-07-29 against the Tax Foundation’s 2026 tables. Federal self employment tax is 15.3% of 92.35% of net income everywhere; only the state portion changes by location.
Worked example
$80,000 net income, single filer.
Estimate only: it excludes credits, dependents, retirement contributions, and QBI phaseouts. Talk to a CPA before you send the IRS a check this size. Plan your quarterly payments →
Washington, specifically
No income tax, but Washington taxes gross receipts.
Washington has no personal income tax, which is why the state line above reads zero. That is not the whole picture for a business. The Department of Revenue describes most businesses in Washington as subject to a gross receipts tax known as the business and occupation tax, calculated on the total value of products sold or the total income the business earns. Because it is based on gross income, the department says, businesses cannot deduct expenses such as labor, materials, taxes, or other costs of doing business. The calculator above models federal self employment tax and federal income tax only.
- The tax is measured on gross income, not on profit, so a thin year still owes it.
- No deduction is allowed for labor, materials, taxes, or other costs of doing business.
- The department assigns each business a tax classification. Confirm yours, and the rate that goes with it, with the department before you budget for it.
Read on 2026-09-17 from Washington Department of Revenue, https://dor.wa.gov/taxes-rates/business-occupation-tax. State rules change, so treat the source as current and this page as of its date. None of it is tax advice; a CPA licensed in Washington is.
Washington tax FAQ
Common questions.
- Does Washington tax self employment income in 2026? Not as income tax. Washington has no state income tax, so the figures on this page are federal self employment tax (15.3%) and federal income tax. That answers income tax only, and income tax is not the only tax a state levies on a business. Washington does reach a business by another route, and the Washington section on this page sets it out.
- How much should I set aside for taxes on $80,000 of net income in Washington? On $80,000 of net self employment income (single filer), the estimate is about $11,304 self employment tax, $4,957 federal income tax, and $0 Washington income tax: roughly $16,261 total, or about $4,065 per quarter (~20.33% effective). Adjust for your deductions and credits.
- Washington has no income tax, so do I owe the state anything on my freelance income? Possibly, through the business and occupation tax rather than an income tax. The Department of Revenue treats most Washington businesses as subject to it, and it is calculated on the total income the business earns with no deduction for labor, materials or other costs of doing business. Your classification and rate come from the department.
- When are quarterly estimated taxes due? Federal estimated payments are generally due April 15, June 15, September 15, and January 15. The safe harbor minimum is 100% of last year's tax (110% if your AGI was over $150,000). Pay that across four quarters and you avoid the underpayment penalty regardless of how your income spikes.
- Is a deposit I collect through BookNox taxable? Yes. A deposit is income in the year you receive it, the same as any other booking revenue. BookNox uses Stripe Connect direct charges, so the money lands in your own bank account and you report it like any self employment income.
Keep comparing
More state calculators.
- Virginia: SE tax, federal, and the Virginia state line with the quarterly estimate.
- West Virginia: SE tax, federal, and the West Virginia state line with the quarterly estimate.
- New York: SE tax, federal, and the New York state line with the quarterly estimate.
- California: SE tax, federal, and the California state line with the quarterly estimate.
- Texas: SE tax, federal, and the Texas state line with the quarterly estimate.
- Florida: SE tax, federal, and the Florida state line with the quarterly estimate.
- Illinois: SE tax, federal, and the Illinois state line with the quarterly estimate.
- Georgia: SE tax, federal, and the Georgia state line with the quarterly estimate.
- South Carolina: SE tax, federal, and the South Carolina state line with the quarterly estimate.
- Kansas: SE tax, federal, and the Kansas state line with the quarterly estimate.
Book the work. Then handle the tax.
The same tax dollar hits whether you book the client this week or next month. BookNox helps Washington service vendors close inquiries on the spot: quote, sign, and take the deposit in one link, $29/month flat.