Reverse Sales Tax Calculator Seattle, WA
At 10.35% combined, Seattle's sales tax adds up fast on large purchases. Enter your total amount below to strip out the tax and find the original price.
Seattle Sales Tax Rate Details
The 10.35% combined rate in Seattle breaks down as follows:
| Tax Component | Rate |
|---|---|
| Washington State Sales Tax | 6.5% |
| Local / County Tax (King County) | 3.85% |
| Total Combined Rate | 10.35% |
For authoritative Washington tax rate information, see the Washington Department of Revenue.
Reverse Tax Formula for Seattle
To find the pre-tax price on any Seattle purchase, divide the total by 1.1035:
Original Price = Total ÷ 1.1035
Example: $110.35 ÷ 1.1035 = $100.00Example Calculations — Seattle
| Total Paid | Original Price | Tax Amount |
|---|---|---|
| $50.00 | $45.31 | $4.69 |
| $100.00 | $90.62 | $9.38 |
| $250.00 | $226.55 | $23.45 |
| $500.00 | $453.10 | $46.90 |
When to Use the Seattle Rate
Use 10.35% when you're making a purchase within Seattle city limits. Purchases made just outside the city may fall under a different county rate. When in doubt, check your receipt—the tax rate is usually printed there.
If you're calculating tax for an online purchase shipped to Seattle, the seller may be required to collect Washington sales tax at the applicable local rate.
Seattle Sales Tax – Common Questions
What is the sales tax rate in Seattle?▼
Seattle's combined sales tax rate is 10.35%, which includes Washington's 6.5% state tax plus 3.85% in local taxes.
How do I calculate the original price before tax in Seattle?▼
Divide the total by 1.1035. For example: if you paid $110.35, the original pre-tax price was $100.00.
How much sales tax would I pay on a $100 purchase in Seattle?▼
On a $100 pre-tax purchase in Seattle, you'd pay $10.35 in sales tax, for a total of $110.35.
Can I reverse sales tax for Seattle using just the rate?▼
Yes. The reverse sales tax formula is: Original Price = Total ÷ (1 + 10.35/100). Our calculator above does this automatically.