Sales Tax Rates
The total general sales tax rate for Mercer Island is 10.2%. The majority of that amount (6.5%) goes to the State of Washington. The remainder is distributed to various local jurisdictions as detailed below. The City of Mercer Island receives only 0.85% on each taxable sale occurring on the Island. So, for every $100 spent on Mercer Island, the City receives $0.85.
An additional 0.5% sales tax applies to food and beverages sold by restaurants and taverns to pay for the debt service on T-Mobile Park.
| Jurisdiction | Tax Rate | Tax Amount on a $100 Purchase |
| State | 6.50% | $6.50 |
| Local | ||
| King County | 1.35% | $1.35 |
| Regional Transit | 1.40% | $1.40 |
| City of Mercer Island | 0.85% | $0.85 |
| Criminal Justice | 0.10% | $0.10 |
| Total General Sales Tax | 10.20% | $10.20 |
Additional information can be found on the Washington State Department of Revenue website.
