Reverse Sales Tax Calculator Seattle, WA
Seattle shoppers pay a combined sales tax rate of 10.35%. If you've got a receipt total and need to work back to the pre-tax price, this calculator does it in one step.
Seattle Sales Tax Rate Details
The combined rate in Seattle is 10.35%. That includes the 6.5% statewide rate plus 3.85% in local taxes tied to King County.
Seattle sits in King County, and its 10.35% combined rate is 0.92% above the state average. That makes local pages more useful than a statewide estimate when you are validating receipts or reimbursements.
| Tax Component | Rate |
|---|---|
| Washington state sales tax | 6.5% |
| Local or county tax (King County) | 3.85% |
| Total combined rate | 10.35% |
Official rate information is published by the Washington State Department of Revenue. Use that source if you need a compliance-grade rate for a filing or audit trail.
How Seattle Compares Within Washington
Among the covered cities in Washington, Seattle ranks #2 by combined rate. Compared with the state's average combined rate of 9.429%, this city is 0.92% higher.
That difference can matter more than people expect, especially on furniture, electronics, travel expenses, or multi-item receipts.
If you are comparing totals across nearby stores, city boundaries can explain why the tax amount changes even when the shelf price stays the same.
Reverse Tax Formula for Seattle
To find the pre-tax price on a Seattle receipt, divide the total by 1.1035.
Original Price = Total / 1.1035
Example: $110.35 / 1.1035 = $100.00Example Calculations for 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 the purchase happened inside Seattle city limits or when an online order was delivered there and the seller collected the local rate.
If the purchase happened outside the city, even a short distance away, the local portion may change. The safest shortcut is to check the receipt first and use the printed rate if it is available.
Seattle Sales Tax - Common Questions
What is the sales tax rate in Seattle?v
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?v
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?v
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?v
Yes. The reverse sales tax formula is: Original Price = Total / (1 + 10.35/100). Our calculator above does this automatically.