Washington State Sales Tax Guide 2025
Navigate Washington’s sales tax requirements with confidence. This comprehensive guide covers everything you need to know about sales tax registration, current rates, and compliance requirements for businesses operating in the Evergreen State.
Washington Sales Tax at a Glance
| Category | Details |
|---|---|
| State Sales Tax Rate | 6.5% |
| Local Tax Range | 0% – 3.9% |
| Combined Rate Range | 6.5% – 10.4% |
| Registration Fee | $90 (first location) |
| Tax Agency | Washington Department of Revenue |
| Filing Frequency | Monthly, Quarterly, or Annual |
| Economic Nexus Threshold | $100,000 in sales |
Understanding Washington Sales Tax
Washington imposes a 6.5% state sales tax plus significant local taxes that can bring combined rates up to 10.4% in areas like Seattle (10.35%). The state follows a destination-based system. Washington has no state income tax, so sales tax is a major revenue source. Effective October 2025, certain IT services became newly taxable.
Key Washington Sales Tax Facts
- Destination-based sourcing – Tax rate based on delivery address
- High local variation – Seattle at 10.35%, some rural areas at 6.5%
- Digital products taxable – E-books, streaming, and SaaS are taxable
- Groceries exempt – Food for home consumption is tax-exempt
How to Register for a Washington Sales Tax Permit
Registration for a Washington seller’s permit requires a $90 fee for the first business location (or re-opening). You’ll receive a Unified Business Identifier (UBI) number. Processing takes 1-2 business days online.
Registration Steps
- Visit Washington DOR Business Licensing Service
- Create a Secure Access Washington (SAW) account
- Complete the Business License Application
- Pay the $90 registration fee
- Receive your UBI number and seller’s permit
- Set up your My DOR account for filing
Washington DOR Contact
| Phone | (800) 647-7706 |
| Website | dor.wa.gov |
| My DOR Portal | secure.dor.wa.gov |
| Address | 6500 Linderson Way SW, Tumwater, WA 98501 |
Compare Washington to Other States
See how Washington’s sales tax requirements compare to other western states:
California – 7.25% state rate
Colorado – 2.9% state rate
Texas – 6.25% state rate
Arizona – 5.6% state rate
Washington Sales Tax Resources
Permit Guide
Step-by-step registration instructions
Rates & Fees
Rates by city and county
Business Licensing
Additional WA requirements
DOR Contact
Official contact information
Ready to Register Your Business in Washington?
Disclaimer: This guide is for informational purposes only. We are not affiliated with the Washington Department of Revenue. For official information, visit dor.wa.gov.