Kennewick Sales Tax Calculator
The combined sales tax rate in Kennewick, Washington is 8.8% in 2026 — a 6.5% Washington state rate plus 2.3% in local add-ons. That is the 124th highest rate of the 280 Washington cities we track, and it runs below Washington's 9.47% average. On a $100 purchase that's $8.80 in tax for a $108.80 total.
$100.00 total
Before tax: $100.00 · Sales tax: $0.00 (0%)
State & average combined rates: Tax Foundation 2026. Local rates vary by city/county — adjust the rate for an exact figure. How we calculate →
Kennewick sales tax rate in 2026
Kennewick charges a combined sales tax rate of 8.8%: the Washington statewide base of 6.5% plus 2.3% in city and county add-ons. Kennewick is in Benton County.
That local add-on is set by Kennewick and the taxing districts that overlap it, which is why neighboring cities in Washington can charge a different total even a few miles apart.
Kennewick vs the rest of Washington
At 8.8%, Kennewick runs below Washington's 9.47% statewide average combined rate by 0.67%. Among the 280 Washington cities we track by combined rate, Kennewick ranks the 124th highest.
That makes Kennewick comparatively light on sales tax for Washington, though it's still well above zero.
Sales tax examples in Kennewick
At Kennewick's 8.8% combined rate:
$100 → $8.80 tax, $108.80 total · $1,000 → $88.00 tax, $1,088.00 total · $25,000 car purchase → $2,200 tax, $27,200 total.
Working backwards: a $1,090.00 receipt total in Kennewick means the pre-tax price was $1,001.84 and $88.16 was tax — use “Remove tax” mode above to reverse any total instantly.
A note on Kennewick's exact rate
The 8.8% rate applies within Kennewick's official city limits as published by Washington DOR — Tax Rate Lookup. Addresses with a Kennewick mailing address but outside the incorporated city line — a common situation on the edges of any city — can fall under a different, usually lower, rate.
For an address-exact rate, use the official lookup tool: Washington DOR — Tax Rate Lookup. This calculator pre-fills the published city-limits rate as a reliable starting point.
Kennewick sales tax — frequently asked questions
What is the sales tax rate in Kennewick, Washington?
Kennewick's combined sales tax rate is 8.8% in 2026 — 6.5% Washington state tax plus 2.3% in local add-ons. That's the 124th highest rate of the 280 Washington cities we track.
How much is sales tax on $100 in Kennewick?
At Kennewick's 8.8% rate, sales tax on a $100 purchase is $8.80, for a $108.80 total.
How much sales tax will I pay on a $25,000 car in Kennewick?
At Kennewick's 8.8% combined rate, sales tax on a $25,000 vehicle purchase is about $2,200, for a $27,200 total before any trade-in credit or registration fees.
Is Kennewick's sales tax higher or lower than the Washington average?
Kennewick runs below Washington's 9.47% statewide average by 0.67%, ranking the 124th highest of the 280 Washington cities we track.
How do I calculate sales tax backwards from a total in Kennewick?
Divide the total by 1 plus the rate. A $1,090.00 total in Kennewick works back to a $1,001.84 pre-tax price and $88.16 of tax. Use “Remove tax” mode above to do this automatically.
Does Kennewick's sales tax rate apply everywhere in the Kennewick area?
The 8.8% rate applies within Kennewick's official city limits. Nearby addresses outside the incorporated boundary can be taxed at a different rate — check Washington DOR — Tax Rate Lookup for an address-exact figure.
Compare nearby cities in Washington
See all 280 Washington cities ranked by combined sales tax rate, or compare:
Researched & verified by the Calcuris Data & Research Team. How we build and check our tools →