The annual tax return is due April 15.

Tax topics

These articles provide information about taxes in Washington state. See our Special Notices for updates to existing tax law, and Industry Guides to better understand tax requirements for specific industries.


Topics Issue Date Subjects
Meals provided to senior residents Senior meals
Rental vs. license to use real estate Rental
Scams increase during disasters and national emergencies Fraud
City Municipal Utility Tax Public utility tax
Auto repair facilities customer rights Auto repair
Purchases of clay targets Clay targets
Travel agents and tour operators Travel agents and tour operators
Florist deliveries Florist deliveries
Entregas por parte de floristas Florist deliveries
Tax reporting for nonprofit water associations Nonprofit water associations
Estate tax treatment of real property owned by business entities Estate tax
Bartering transactions are taxable Bartering
Homeowners associations Homeowners associations
2025 Tax legislation New Legislation
Itemizing the business & occupation tax Business & occupation tax
Wireless calling - Sourcing prepaid services Sourcing prepaid wireless
DJ services DJ services
Reusable bag fees Reusable bag fees
Property tax - How the 1% property tax levy limit works Property tax
Investments Investments
Transfers of used park model trailers Used park model trailers
Irrigation Districts Operating on US Government Property Irrigation Districts
Director fees subject to Business and Occupation (B&O) tax Business & occupation tax
Special event promoter’s requirements Special event promoter
Foreign Diplomats Tax Exemption Foreign diplomats
Taxability of legal settlements Legal settlements
Surcharges including tariffs Surcharges
International investment management services International investment
Emergency financial assistance grants Federal assistance
How to document United States government purchases Federal government