Sales tax in Lummi Nation - Whatcom County (unincorporated), Washington: 8.3%

State 6.5% + local 1.8%. In effect October 1 – December 31, 2026.

Source: dor.wa.gov, checked 2026-10-09.

  • Lummi Nation - Whatcom County (unincorporated) is in Whatcom County.
  • 193 of 329 Washington locations we list have a higher combined rate.
  • Combined rates in Washington range from 7.6% to 10.7%.

Sales tax on common amounts in Lummi Nation - Whatcom County (unincorporated)

PriceSales taxTotal
$10.00$0.83$10.83
$25.00$2.08$27.08
$50.00$4.15$54.15
$100.00$8.30$108.30
$500.00$41.50$541.50
$1,000.00$83.00$1,083.00

Rates apply where the buyer receives the goods. Parts of some cities lie outside the regional transit (RTA) area and pay a slightly lower rate. For an exact street address, use the Washington Department of Revenue tax rate lookup. Lodging, vehicle and prepared-food taxes can be extra.

Calculate tax on any amount

Your state rate plus any county/city rate. Check your receipt or your state revenue department.

Your results will appear here as you type.

How this is calculated

Adding tax: Tax = Price × Rate ÷ 100. Removing tax: Pre-tax price = Total ÷ (1 + Rate ÷ 100), and Tax = Total − Pre-tax price.

Assumptions

  • Uses the combined rate you enter. US sales tax varies by state, county and city, and some items are exempt. This is an estimate, not a tax determination.

Estimates for planning and education only. Not financial, tax or legal advice, and not an official government calculation. Calculations run in your browser; nothing you enter is stored or sent.

All local rates in Washington

Frequently asked questions

What is the sales tax rate in Lummi Nation - Whatcom County (unincorporated), Washington?

The combined sales tax rate in Lummi Nation - Whatcom County (unincorporated), Washington is 8.3%: the 6.5% state rate plus 1.8% in local taxes, according to the state's official rate file.

How much is sales tax on $100 in Lummi Nation - Whatcom County (unincorporated)?

$8.30, for a total of $108.30.

Sources and method

Combined rate = state rate + local rates (including transit where listed). Prepared-food, lodging, vehicle and other special taxes are not included.

For general information only, not financial, tax or legal advice. Figures are estimates based on the sources shown.