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.
Sales tax by city in Washington (280 cities, ranked)
Combined sales tax rate for every Washington city we track (official state/county/city rates), highest to lowest. Pick yours for a city-specific rate:
Sales tax calculators by state
National sales tax calculator · then pick any state:
Researched & verified by the Calcuris Data & Research Team. How we build and check our tools →