MASON Sales Tax Overview
As of 2026, MASON, Washington has an average combined sales tax rate of 8.6%, with rates varying across 6 zip codes from 8.6% to 8.6%. This rate includes the Washington state tax of 6.5% plus applicable county and local taxes.
Different areas within MASON may have different rates due to special tax districts, transit authority taxes, or other local levies. It is important to use your exact zip code when calculating taxes for purchases, business filings, or compliance purposes.
MASON Tax Examples
* Based on average rate of 8.6%. Verify with your exact zip code.
MASON Zip Codes & Tax Rates
Frequently Asked Questions
What is the sales tax rate in MASON, WA?
The average sales tax rate in MASON, WA is 8.6% as of 2026. This includes the 6.5% Washington state tax plus any county and city taxes.
How many zip codes are in MASON, WA?
MASON, WA has 6 zip codes in our database: 98524, 98546, 98548, 98560, 98588 and 1 more.
How much is sales tax on a $100 purchase in MASON?
On a $100 purchase in MASON, WA you would pay approximately $8.60 in sales tax at the average rate of 8.6%, for a total of $108.60.
Is MASON's sales tax rate higher than the Washington average?
Use our calculator to compare MASON's rate of 8.6% against other cities in Washington. Visit the Washington state page for the statewide average.