# Washington Sales Tax Calculator

> Washington sales tax is 6.5% at state level, 9.57% on average with local taxes. Add or remove Washington sales tax from any price.

URL: https://paycheck-math.com/us/sales-tax-calculator/washington/  
Breadcrumbs: Home > United States > Sales tax calculator > Washington  
Language: en-US  
Rates checked: 2026-10-29  

Washington's state sales tax rate is 6.5%. With county and city taxes the average combined rate is 9.57%.

## Result with default inputs

Inputs: amount=100, rate=9.57, mode=add

**Price with tax: $109.57**

- Tax: $9.57

| Line | Item | Amount |
| --- | --- | --- |
| 1 | Price before tax | $100.00 |
| 2 | Tax | $9.57 |
| 3 | **Price with tax** | $109.57 |


To compute other inputs, call the JSON API: `https://paycheck-math.com/api/v1/calculate?path=%2Fus%2Fsales-tax-calculator%2Fwashington%2F&amount=100&rate=9.57&mode=add` or open the page URL with the same query parameters.

## Examples at 9.57%

| Amount | Tax added | Total with tax | Tax inside a tax-included amount |
| --- | --- | --- | --- |
| $10.00 | $0.96 | $10.96 | $0.87 |
| $50.00 | $4.78 | $54.79 | $4.37 |
| $100.00 | $9.57 | $109.57 | $8.73 |
| $250.00 | $23.92 | $273.92 | $21.84 |
| $500.00 | $47.85 | $547.85 | $43.67 |
| $1,000.00 | $95.70 | $1,095.70 | $87.34 |
| $5,000.00 | $478.50 | $5,478.50 | $436.71 |

## Sales tax in Washington's largest cities

| City | Combined rate |
| --- | --- |
| [Seattle](https://paycheck-math.com/us/sales-tax-calculator/washington/seattle/) | 10.55% |

## Rates used

|  | Rate |
| --- | --- |
| State rate | 6.5% |
| Average local rate | 3.07% |
| Average combined rate | 9.57% |

Official source: [Washington revenue department](https://taxfoundation.org/data/all/state/state-income-tax-rates-2026/). Rates checked on Oct 29, 2026.

## Questions people ask

### What is the sales tax rate in Washington?

The state rate is 6.5% and local taxes bring the average combined rate to 9.57%. Your exact rate depends on the city, county and special district where you buy.

### How do I calculate sales tax?

Multiply the price by the rate: $100 at 8.25% is $8.25 of tax, $108.25 in total. To remove tax from a total, divide by 1 + the rate: $108.25 ÷ 1.0825 = $100.

### Which states have no sales tax?

Alaska, Delaware, Montana, New Hampshire and Oregon have no statewide sales tax, although some Alaska and Montana localities charge their own.

## Related calculators

- [Paycheck Calculator 2026](https://paycheck-math.com/us/paycheck-calculator/index.md)
- [Salary after tax in 2026](https://paycheck-math.com/us/salary-after-tax/index.md)
- [Hourly wage to yearly salary](https://paycheck-math.com/us/hourly-wage/index.md)
- [Income Tax Calculator 2026](https://paycheck-math.com/us/income-tax-calculator/index.md)
- [Federal Income Tax Brackets 2026](https://paycheck-math.com/us/tax-brackets-2026/index.md)
- [State Income Tax Rates 2026](https://paycheck-math.com/us/state-income-tax-rates/index.md)

---
Estimates for information only, not tax, legal or financial advice. Check with an adviser or the official tax authority.