Washington Self-Employment Tax Guide (2026)

No income tax, but a B&O tax on gross receipts. Washington's 2026 service rates, the $125,000 filing threshold, and what freelancers really owe.

By Thomas P. Checked against IRS publications Updated

Washington has no personal income tax, but it has something freelancers in most states never see: the Business and Occupation (B&O) tax, a tax on your gross receipts rather than your profit. Here is what a Washington freelancer actually owes.

What you pay

Tax Applies?
Federal self-employment tax (15.3%) Yes
Federal income tax (10%–37%) Yes
State personal income tax No
Washington B&O tax Yes, on gross receipts — but small businesses often owe little or nothing
City B&O tax In some cities, such as Seattle, Tacoma and Bellevue

How the B&O tax works

The B&O tax applies to the gross income of a business — what clients pay you, with no deduction for expenses. It is owed even in a year when you lose money. Most freelance work (consulting, design, writing, software development, coaching) falls under the Service and Other Activities classification. Its rate depends on your business’s taxable income in that classification in the prior year:

Prior-year service income 2026 rate
Under $1 million 1.5%
$1 million to under $5 million 1.75%
$5 million or more 2.1%

So nearly every freelancer is at 1.5%. On $150,000 of service income, that is $2,250 before credits — regardless of how much of it you spent on expenses.

When small businesses owe little or nothing

  • Filing threshold. If your gross income is under $125,000 a year and you don’t collect sales tax or owe other state taxes, the Department of Revenue can place your account on “active non-reporting” status, so you don’t file B&O returns.
  • Small business B&O credit. Businesses with a low B&O liability get a credit that reduces or eliminates it. The credit amount is set by a table that the Department updates — check DOR’s current small business credit table for the exact figures.

Registering your business

You need a Washington business license if your gross income is $12,000 a year or more, if you hire employees, or if you collect sales tax, among other triggers. Many cities also require their own business license, and some — including Seattle — have a city B&O tax with their own thresholds.

Sales tax

Washington’s sales tax applies to goods and to a longer list of services than most states, including some digital products and services. If your work involves digital goods, website hosting, or physical products, check DOR’s guidance before assuming you don’t need to collect it.

Federal tax still applies in full

Your biggest bill is federal. A single freelancer with $85,000 of profit owes about $17,800 in federal self-employment and income tax — roughly $4,450 a quarter. Check yours with the quarterly estimated tax calculator. The B&O tax you pay is a deductible business expense on Schedule C.

How much to set aside

Use the tax set-aside calculator with the state rate at 0 for the federal part, then set aside an extra 1.5% of gross receipts if your income is above the B&O filing threshold.