# King County, WA Sales Tax Rate (2026)

Canonical: https://trykintsugi.com/sales-tax-guides/usa/washington/king-county
Published: 2026-09-01

The most common combined sales tax rate in King County, WA is 10.55% as of September 2026: 6.5% state and 4.05% city. Rates across the county's 120 ZIP codes range from 8.9% to 10.55%, depending on the city and special districts. Washington's state rate is 6.5%, so local taxes add 4.05% here.

| Component | Rate |
| --- | --- |
| State | 6.5% |
| County | 0% |
| City | 4.05% |
| Special district | 0% |
| **Combined** | **10.55%** |

Source: Kintsugi's rate table, as of September 2026. Official rates: [Washington DOR — Retail Sales Tax](https://dor.wa.gov/taxes-rates/retail-sales-tax).

## Sales tax rates by place in King County

| Place | Combined rate | ZIP codes |
| --- | --- | --- |
| Seattle | 10.55% | 59 |
| Bellevue | 10.3% | 7 |
| Kent | 10.4% | 7 |
| Renton | 10.5% | 5 |
| Auburn | 10.5% | 4 |
| Federal Way | 10.4% | 4 |
| Kirkland | 10.4% | 3 |
| Redmond | 10.4% | 3 |
| Bothell | 10.3% | 2 |
| Issaquah | 10.5% | 2 |
| Sammamish | 10.3% | 2 |
| Woodinville | 10.3% | 2 |
| Baring | 8.9% | 1 |
| Black Diamond | 9% | 1 |
| Burton | 8.9% | 1 |
| Carnation | 8.9% | 1 |
| Duvall | 9.2% | 1 |
| Enumclaw | 9% | 1 |
| Fall City | 8.9% | 1 |
| Hobart | 8.9% | 1 |
| Kenmore | 10.3% | 1 |
| Maple Valley | 9.1% | 1 |
| Medina | 10.4% | 1 |
| Mercer Island | 10.3% | 1 |
| North Bend | 9.2% | 1 |
| Pacific | 10.4% | 1 |
| Preston | 8.9% | 1 |
| Ravensdale | 8.9% | 1 |
| Seahurst | 10.4% | 1 |
| Skykomish | 8.9% | 1 |
| Snoqualmie | 9.3% | 1 |
| Vashon | 8.9% | 1 |

## King County sales tax rates by ZIP code

| ZIP | Combined rate |
| --- | --- |
| 98001 | 10.5% |
| 98002 | 10.5% |
| 98003 | 10.4% |
| 98004 | 10.3% |
| 98005 | 10.3% |
| 98006 | 10.3% |
| 98007 | 10.3% |
| 98008 | 10.3% |
| 98009 | 10.3% |
| 98010 | 9% |
| 98011 | 10.3% |
| 98013 | 8.9% |
| 98014 | 8.9% |
| 98015 | 10.3% |
| 98019 | 9.2% |
| 98022 | 9% |
| 98023 | 10.4% |
| 98024 | 8.9% |
| 98025 | 8.9% |
| 98027 | 10.5% |
| 98028 | 10.3% |
| 98029 | 10.5% |
| 98030 | 10.4% |
| 98031 | 10.5% |
| 98032 | 10.4% |
| 98033 | 10.4% |
| 98034 | 10.4% |
| 98035 | 10.4% |
| 98038 | 9.1% |
| 98039 | 10.4% |
| 98040 | 10.3% |
| 98041 | 10.3% |
| 98042 | 10.4% |
| 98045 | 9.2% |
| 98047 | 10.4% |
| 98050 | 8.9% |
| 98051 | 8.9% |
| 98052 | 10.4% |
| 98053 | 10.4% |
| 98055 | 10.5% |
| 98056 | 10.5% |
| 98057 | 10.5% |
| 98058 | 10.5% |
| 98059 | 10.5% |
| 98062 | 10.4% |
| 98063 | 10.4% |
| 98064 | 10.4% |
| 98065 | 9.3% |
| 98070 | 8.9% |
| 98071 | 10.5% |
| 98072 | 10.4% |
| 98073 | 10.4% |
| 98074 | 10.3% |
| 98075 | 10.3% |
| 98077 | 10.3% |
| 98083 | 10.4% |
| 98089 | 10.4% |
| 98092 | 10.5% |
| 98093 | 10.4% |
| 98101 | 10.55% |
| 98102 | 10.55% |
| 98103 | 10.55% |
| 98104 | 10.55% |
| 98105 | 10.55% |
| 98106 | 10.55% |
| 98107 | 10.55% |
| 98108 | 10.55% |
| 98109 | 10.55% |
| 98111 | 10.55% |
| 98112 | 10.55% |
| 98113 | 10.55% |
| 98114 | 10.55% |
| 98115 | 10.55% |
| 98116 | 10.55% |
| 98117 | 10.55% |
| 98118 | 10.55% |
| 98119 | 10.55% |
| 98121 | 10.55% |
| 98122 | 10.55% |
| 98124 | 10.55% |
| 98125 | 10.55% |
| 98126 | 10.55% |
| 98127 | 10.55% |
| 98129 | 10.55% |
| 98131 | 10.4% |
| 98133 | 10.55% |
| 98134 | 10.55% |
| 98136 | 10.55% |
| 98138 | 10.4% |
| 98139 | 10.55% |
| 98141 | 10.55% |
| 98144 | 10.55% |
| 98145 | 10.55% |
| 98146 | 10.55% |
| 98148 | 10.4% |
| 98154 | 10.55% |
| 98155 | 10.55% |
| 98158 | 10.4% |
| 98160 | 10.5% |
| 98161 | 10.55% |
| 98164 | 10.55% |
| 98165 | 10.55% |
| 98166 | 10.4% |
| 98168 | 10.4% |
| 98170 | 10.55% |
| 98174 | 10.55% |
| 98175 | 10.55% |
| 98177 | 10.55% |
| 98178 | 10.55% |
| 98181 | 10.55% |
| 98185 | 10.55% |
| 98188 | 10.4% |
| 98190 | 10.4% |
| 98191 | 10.55% |
| 98194 | 10.55% |
| 98195 | 10.55% |
| 98198 | 10.4% |
| 98199 | 10.55% |
| 98224 | 8.9% |
| 98288 | 8.9% |

## Selling into King County: Washington rules

- **What's taxable:** At the state level, SaaS is taxable, clothing is taxable, groceries are exempt and digital goods are taxable.
- **Economic nexus:** Washington economic nexus applies once your cumulative gross income from sales into the state reaches $100,000 in the current or prior calendar year, including marketplace sales. There is no transaction-count trigger.
- **Filing:** Washington assigns monthly, quarterly, or annual filing based on revenue. Monthly returns are due the 25th of the following month; quarterly returns are due the end of the month after the quarter; annual returns are due April 15.

More in the [Washington sales tax guide](/sales-tax-guides/usa/washington).

## Frequently asked questions

### What is the sales tax rate in King County, WA?

The most common combined sales tax rate in King County, WA is 10.55% as of September 2026: 6.5% state and 4.05% city. Rates across the county's 120 ZIP codes range from 8.9% to 10.55%, depending on the city and special districts. Washington's state rate is 6.5%, so local taxes add 4.05% here.

### Why do sales tax rates differ within King County?

Local sales taxes follow city and district boundaries, and ZIP codes don't. Of the 120 ZIP codes in King County, 49 carry 10.55% and the rest range from 8.9% to 10.55%, usually because the ZIP lies in a city or special taxing district with its own tax. Always rate a sale by the delivery address, not the county or ZIP alone.

### Which places in King County have their own sales tax?

22 of the 32 places in King County levy a city sales tax on top of the state and county rates. The highest combined rates are in Seattle (10.55%), Renton (10.5%), Issaquah (10.5%), Kent (10.4%) and Federal Way (10.4%).

### Do I need to collect King County sales tax if I'm based out of state?

Only once you have nexus in Washington. Washington economic nexus applies once your cumulative gross income from sales into the state reaches $100,000 in the current or prior calendar year, including marketplace sales. There is no transaction-count trigger. After you register, you collect Washington sales tax on taxable sales delivered to King County.

### What does Washington tax?

At the state level, SaaS is taxable, clothing is taxable, groceries are exempt and digital goods are taxable. The Washington sales tax guide covers exemptions and local exceptions.