Washington LLC Taxes Explained: The B&O Deep Dive
Washington has no personal income tax — but the Business & Occupation (B&O) tax is a real, recurring cost on your gross revenue, not your profit, with no deductions for costs. Here's exactly how it works, with an estimator that shows both sides honestly.
Washington LLC members pay no state personal income tax on distributed profit. Instead, most LLCs owe the Business & Occupation (B&O) tax — assessed on gross receipts, not net profit, with essentially no deductions for cost of goods, labor, rent, or materials. Rates range from about 0.471% (retailing) to 1.5% (services). LLCs with under $250,000 in annual gross receipts are exempt as of 2026. Add federal self-employment tax of 15.3%. Sellers also collect a 6.5% state sales tax plus local rates, combined averaging about 9.37%.
- State personal income tax
- None
- B&O tax basis
- Gross receipts, not net profit
- B&O rate range
- 0.471%–1.5% (most common classes)
- Small business B&O exemption
- Under $250,000 gross receipts
- Local city B&O tax
- Yes — Seattle, Tacoma, others, on top
- Sales tax
- 6.5% + local, avg ~9.37%
The Tax Layers in Washington
Federal: income + self-employment tax
Pass-through profits hit your 1040 at your federal bracket, plus 15.3% SE tax on 92.35% of net profit — this applies regardless of state.
Washington state income tax: none
Washington levies no personal income tax. LLC members pay $0 in state income tax on distributed profit — this part is genuinely simple.
B&O tax: the real cost most "no income tax" headlines skip
A gross receipts tax, no deductions, owed even at a loss — see the full deep dive below.
Sales tax: 6.5% + local (if applicable)
Combined average around 9.37%. See Step 7.
B&O + Self-Employment Tax Estimator
Washington B&O + Self-Employment Tax Estimator
Models gross receipts (not just profit) · educational estimate
B&O Classifications, Explained
Washington has over 40 B&O classifications, but most small LLCs fall into one of these:
| Classification | Rate | Applies To |
|---|---|---|
| Retailing | 0.471% | Selling physical goods to consumers |
| Wholesaling / Manufacturing | 0.484% | Selling to other businesses / making products |
| Service & Other Activities | 1.5% | Consulting, professional services, most service businesses |
| Gambling / Certain Financial | 3.3% | Specific regulated activities |
Misclassifying your business — for example, reporting a service business as retailing — is a common audit trigger, and reclassification can produce multi-year back assessments. If your LLC does more than one type of activity, you may need to allocate receipts across multiple classifications.
Local City B&O Tax: A Second Layer
The state B&O tax isn't necessarily the whole picture. Cities including Seattle, Tacoma, Bellevue, and Bellingham impose their own separate local B&O tax, with their own rates, thresholds, and returns — entirely independent from the state B&O tax. If you operate in one of these cities, budget for a genuinely separate filing and payment, not just a higher combined rate on the same return.
The S-Corp Question in Washington
An S-Corp election changes federal taxation: reasonable salary (payroll-taxed) plus distributions that escape the 15.3% SE tax. File Form 2553 — never Form 8832. Since Washington has no state income tax, the S-Corp election here is purely a federal SE-tax play — it does not reduce your B&O tax exposure at all, since B&O applies to gross receipts regardless of your entity's federal tax election. Run the numbers with a Washington CPA before electing.
Your Washington Tax Calendar
| Date | What's Due |
|---|---|
| Apr 15 / Jun 15 / Sep 15 / Jan 15 | Quarterly estimated taxes — federal, on pass-through profit |
| Anniversary month | Annual Report to the Secretary of State ($70) |
| Monthly / Quarterly / Annual | B&O tax return — frequency depends on your tax liability |
| Apr 15 | Form 1040 — no separate state income tax return needed |
| Monthly/Quarterly | Sales tax returns, if applicable |
Ahmad Adil's Take: I want to close this Washington guide the same way I opened it — the "no income tax" headline is real, but it's genuinely only half the story, and I don't want that phrase to be the only thing you remember. If you're a smaller LLC staying under $250,000 in gross receipts, Washington is honestly quite favorable: no income tax, no B&O tax, just federal obligations and a reasonable $70 annual report. Cross that threshold, and B&O becomes a real, permanent cost on your top line — profitable or not. Model your actual gross receipts, not just your expected profit, before deciding Washington's tax picture works in your favor.
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Washington LLC — FAQ
Ahmad Adil is the founder and CEO of LLC School. The figures here — the $180 Certificate of Formation, the $70 annual report due your anniversary month, and Washington’s B&O gross receipts tax — reflect current Washington Secretary of State and Department of Revenue guidance. This is educational content, not legal or tax advice.
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