With the ever increasing gap in the budget, Washington legislation will be changing untaxed services to taxable retail sales with ESSB 5814.
Go Washington.
Engrossed Substitute Senate Bill (ESSB) 5814 added new business activities to the definition of retail sales. This means sellers must begin collecting sales tax on these services on October 1, 2025:
- Information technology services.
- Custom website development services.
- Investigation, security, and armored car services.
- Temporary staffing services.
- Advertising services.
- Live presentations.
- Sales of custom software and customization of prewritten software.
- Modification of digital automated services (DAS) exclusions.


