Washington Sales Tax Calculator
The average combined sales tax rate in Washington is 9.47% in 2026 — a 6.5% state rate plus about 2.97% in local taxes. On a $100 purchase that's $9.47 in tax for a $109.47 total. Enter any amount below to add or remove Washington sales tax instantly.
$100.00 total
Before tax: $100.00 · Sales tax: $0.00 (0%)
State & average combined rates: Tax Foundation 2026. Local rates vary by city/county — adjust the rate for an exact figure. How we calculate →
Washington sales tax rate in 2026
Washington's statewide base sales tax rate is 6.5%. On top of that, counties, cities and special districts add local taxes that average about 2.97%, for an average combined rate of 9.47%. These figures come from the Tax Foundation's 2026 state and local sales-tax data.
Because local rates differ from city to city, the auto-filled 9.47% is the population-weighted state average. For an exact figure at a specific address, adjust the rate in the calculator to your local combined rate.
How much is sales tax on a purchase in Washington?
At Washington's average combined rate of 9.47%, here's the tax and total on common amounts:
$10 → $0.95 tax, $10.95 total · $50 → $4.74 tax, $54.73 total · $100 → $9.47 tax, $109.47 total · $1,000 → $94.70 tax, $1094.70 total.
Enter your own amount in the calculator above for an exact figure, or switch to reverse mode to find the pre-tax price from a total.
How Washington sales tax is calculated
Sales tax is the price multiplied by the rate as a decimal. Using Washington's 9.47% combined rate, a $100 item is 100 × 0.0947 = $9.47 in tax, for a $109.47 total. To work backwards from a total that already includes tax, divide by one plus the rate — the calculator's Remove tax mode does this in one step.
Washington sales tax — frequently asked questions
What is the sales tax in Washington?
Washington's statewide sales tax rate is 6.5% in 2026. With local taxes, the average combined rate is 9.47%.
How much is sales tax on $100 in Washington?
At Washington's average combined rate of 9.47%, sales tax on a $100 purchase is $9.47, for a total of $109.47. Enter any amount in the calculator above for an exact figure.
How do I calculate Washington sales tax?
Multiply the price by 9.47% as a decimal (0.0947). For example, $50 × 0.0947 = $4.74 tax, for a $54.73 total. The calculator above fills in the rate and does it instantly.
Does Washington have local sales taxes?
Yes. On top of the 6.5% state rate, Washington localities add an average of about 2.97%, which is why the combined rate averages 9.47% and varies by city and county.
How do I remove sales tax from a total in Washington?
Divide the total by one plus the rate. On a $109.47 total at 9.47%, the pre-tax price is $100.00 and the tax was $9.47. Use the “Remove tax” mode above to do this automatically.
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