Business Tax in Washington: Complete Guide 2026
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Business Tax in Washington: Complete Guide 2026
Tax information is for educational purposes only and does not constitute tax advice. Consult a licensed tax professional for your specific situation.
Washington State has no corporate income tax and no personal income tax, but it imposes a Business and Occupation (B&O) tax that is one of the most significant gross receipts taxes in the nation. The B&O tax applies to gross receipts (total revenue) rather than net income, with rates varying by business activity. This means even unprofitable businesses owe B&O tax if they have revenue. Washington also enacted a ~7.00% capital gains tax in 2021 that was upheld as an excise tax. Together, these mechanisms create a unique business tax environment.
Washington Business Tax Overview (2026)
| Tax Type | Rate / Structure |
|---|---|
| Corporate income tax | None |
| Personal income tax | None |
| Business & Occupation (B&O) tax | ~0.138% to ~3.30% of gross receipts |
| Capital gains tax | ~7.00% on long-term gains over ~$250,000 |
| Sales tax | ~6.50% state + local |
| Property tax | ~0.80% to ~1.20% effective rate |
| Workers’ compensation | Required (rates vary) |
Business and Occupation (B&O) Tax
The B&O tax is Washington’s primary business tax. It applies to gross receipts with no deduction for expenses, cost of goods sold, or losses:
B&O Tax Rates by Classification
| Business Activity | B&O Tax Rate |
|---|---|
| Retailing | ~0.471% |
| Wholesaling | ~0.484% |
| Manufacturing | ~0.484% |
| Service and other | ~1.50% |
| Financial services | ~1.50% |
| Real estate brokerage | ~1.50% |
| Government contracting | ~0.484% |
| Insurance premiums | ~2.00% |
| Gambling contests of chance | ~1.63% |
| Travel agents (commissions) | ~0.275% |
| International services | ~0.138% |
| Royalties | ~1.50% |
| Advanced computing (surcharge) | Up to ~3.30% (targeted at large tech companies) |
B&O Tax Small Business Credit
Washington provides a small business B&O tax credit that effectively eliminates the tax for very small businesses:
| Gross Income | B&O Tax Credit |
|---|---|
| Under ~$62,500/quarter | Full credit (no tax owed) |
| ~$62,500 to ~$250,000/quarter | Partial credit (graduated phase-out) |
| Over ~$250,000/quarter | No credit |
This means businesses with less than approximately ~$250,000 in annual gross receipts may owe little or no B&O tax.
The Gross Receipts Problem
The B&O tax is calculated on gross receipts, not profit. This creates challenges for certain business types:
| Business Type | Revenue | Expenses | Profit | B&O Tax (Service Rate) |
|---|---|---|---|---|
| High-margin consulting | $1,000,000 | $300,000 | $700,000 | ~$15,000 |
| Low-margin retail | $1,000,000 | $900,000 | $100,000 | ~$4,710 (retail rate) |
| Unprofitable startup | $1,000,000 | $1,200,000 | ($200,000) | ~$15,000 (service rate) |
The unprofitable startup and the highly profitable consulting firm pay the same B&O tax despite vastly different financial positions. This is the fundamental criticism of gross receipts taxes.
Capital Gains Tax
Washington enacted a ~7.00% tax on long-term capital gains exceeding ~$250,000 per year, effective in 2022. The Washington Supreme Court upheld this as an “excise tax” rather than an income tax:
| Parameter | Amount |
|---|---|
| Rate | ~7.00% |
| Annual threshold | ~$250,000 in long-term capital gains |
| Exemptions | Sale of primary residence, retirement accounts, certain small business sales |
This tax primarily affects high-income investors and business owners selling appreciated assets. The ~$250,000 threshold exempts most taxpayers.
Comparison to Other No-Income-Tax States
| State | Primary Business Tax | Mechanism | Rate |
|---|---|---|---|
| Washington | B&O tax | Gross receipts | ~0.138% to ~3.30% |
| Texas | Franchise/margin tax | Margin-based | ~0.375% to ~0.75% |
| Nevada | Commerce Tax + MBT | Gross receipts + payroll | ~0.051% to ~0.331% + ~1.378% |
| Wyoming | None | N/A | N/A |
| South Dakota | None | N/A | N/A |
| Florida | Corporate income tax | Net income (C-Corps only) | ~5.50% |
Washington’s B&O tax service rate of ~1.50% is significantly higher than comparable taxes in Texas, Nevada, and other no-income-tax states. However, the retail and manufacturing rates (~0.471% and ~0.484%) are more competitive.
Advanced Computing Surcharge
Washington enacted a targeted surcharge on the B&O tax for “specified financial institutions” and “advanced computing” businesses with worldwide revenue exceeding ~$25 billion. This surcharge, which brings the effective B&O rate to approximately ~2.50% to ~3.30%, was designed to capture additional revenue from large technology companies headquartered in Washington (primarily Microsoft, Amazon, and similar firms).
Tips for Minimizing Washington B&O Tax
-
Classify your activity correctly. B&O rates vary dramatically by classification. Retailing (~0.471%) and manufacturing (~0.484%) are much lower than services (~1.50%). Ensure your business is classified in the correct (and most favorable) category.
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Take the small business credit. Businesses with gross income below ~$250,000/quarter should ensure they are claiming the small business B&O tax credit, which can eliminate or substantially reduce the tax.
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Claim the multiple activities tax credit (MATC). If you are taxed under multiple B&O classifications for the same transaction (e.g., manufacturing and selling), the MATC prevents double taxation.
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Deduct interstate and foreign sales. B&O tax generally does not apply to sales delivered outside Washington. Properly documenting out-of-state deliveries reduces your taxable gross receipts.
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Plan capital gains timing. The ~$250,000 annual threshold on capital gains is per year. Spreading realized gains across multiple tax years can keep each year’s gains below the threshold.
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Consider the manufacturing classification. Some businesses that process or transform goods may qualify for the manufacturing rate (~0.484%) instead of the service rate (~1.50%). The savings can be substantial.
Key Takeaways
- Washington has no corporate or personal income tax but imposes a B&O tax on gross receipts at rates from ~0.138% to ~3.30%
- The B&O tax applies to total revenue, not profit, which disadvantages low-margin and unprofitable businesses
- Service businesses face a ~1.50% rate, while retail and manufacturing businesses pay approximately ~0.47% to ~0.48%
- The small business B&O credit effectively eliminates tax for businesses under approximately ~$250,000 in annual gross receipts
- Washington’s ~7.00% capital gains tax applies to long-term gains exceeding ~$250,000 per year
- The advanced computing surcharge targets large tech companies with rates up to approximately ~3.30%
Next Steps
- Compare sales tax at Sales Tax in Washington 2026
- See the estate tax at Estate Tax in Washington 2026
- Read the full state guide at Taxes in Washington: State Tax Guide 2026
- Explore no-income-tax alternatives at Business Tax in Wyoming 2026
- Get professional help: Hire a Tax Professional