Washington Sales Tax Calculator
Enter an amount to add or remove Washington sales tax, using the 2026 state rate and the average local rate.
Advertisement
Calculate Washington sales tax.
Advertisement
How sales tax is calculated
Washington has a state sales tax rate of 6.50% and an average local rate of 3.07%, for an average combined rate of about 9.57%. Local rates vary by city and county, so your exact rate can be higher or lower. A $100 purchase at the average combined rate costs about $109.57. Rates are from the Tax Foundation (mid-2026). Edit the local rate in the calculator for your location.
| Price before tax | Sales tax | Total |
|---|---|---|
| $25 | $2.39 | $27.39 |
| $50 | $4.79 | $54.78 |
| $100 | $9.57 | $109.57 |
| $250 | $23.93 | $273.92 |
| $500 | $47.85 | $547.85 |
| $1,000 | $95.70 | $1,095.70 |
Sales tax by state
See the US sales tax calculator for every state and its average rates.
- Some items are exempt or taxed differently: many states exempt groceries or prescription drugs, and clothing or digital goods may be treated differently.
- Online purchases are generally taxed based on where they are delivered.
- This is an estimate and not tax advice. For business sales tax, check your state’s department of revenue. See also the US paycheck calculator and the percentage calculator.
How to use the sales tax calculator
- Enter the amount and choose your state; the average rates fill in automatically.
- Edit the local rate if you know your city or county rate.
- Choose whether to add sales tax to a price or remove it from a total, and read the result.
Frequently asked questions
What is the sales tax in Washington?
The state sales tax rate is 6.50% and the average local rate is 3.07%, for an average combined rate of about 9.57%. Your exact rate depends on your city and county.
How much is sales tax on $100 in Washington?
At the average combined rate of 9.57%, sales tax on $100 is about $9.57 and the total is about $109.57.
How do I remove sales tax from a total?
Divide the total by (1 + the rate). At 9.57%, divide by 1.0957.
Does Washington tax groceries?
It depends on the state’s rules and can vary by item. Check your state’s department of revenue for what is taxed.
Where do the rates come from?
The Tax Foundation’s mid-2026 state and average local rates. Edit the local rate for your exact location.
Related tools: US sales tax calculator · US paycheck calculator · Property tax calculator