Hamilton, WA Sales Tax Rate
The combined sales tax rate in Hamilton, Washington is 8.7% (6.5% state and 2.2% city). Calculate the sales tax on any purchase in Hamilton. Rates effective April 2026.
- State tax
- 6.5%
- County tax (Skagit)
- 0%
- City tax (Hamilton)
- 2.2%
- Special district tax
- 0%
- Combined rate
- 8.7%