New Washington Sales Tax Rules Effective October 1, 2025

Beginning October 1, 2025, Washington State will expand its retail sales tax to cover several new categories of services, including information technology services, custom website development, investigation and security services (including armored car), temporary...

Seattle Social Housing Tax (SHT)

What’s Happening? Approved and certified in February 2025, Proposition 1A—the Social Housing Tax (SHT)—took effect on January 1, 2025. The SHT imposes a 5% excess compensation payroll expense tax on businesses with individual Seattle employees...