Cowlitz County, WA Car Tax & Registration (2026)
In Cowlitz County (Longview), a car purchase is taxed at about 8.2% combined (plus a 0.3% motor-vehicle add-on). Cowlitz County is outside the Sound Transit district, so there's no RTA excise tax here. Washington has no emissions test.
Verified July 2026 from official sources. How we verify fees.
What you'll pay in Cowlitz County
- Combined sales tax: 8.2% (+ 0.3% motor-vehicle add-on on purchases)
- RTA / Sound Transit tax: None
- Base tab fee: ~$43 + weight fee · Title: $15 · Local TBD fee: $20–$40
- Emissions test: Not required (ended 2020)
How the tax works
Washington collects sales/use tax at your address, and adds a 0.3% motor-vehicle tax on purchases. Registration is a base tab fee (~$43) plus a weight fee, and Longview-area drivers may see a local Transportation Benefit District fee ($20–$40). Estimate the purchase cost on our Washington title & tax page.
Frequently asked questions
Does Cowlitz County have the RTA / Sound Transit tax?
No — Cowlitz County is outside the Sound Transit district, so there's no RTA excise tax.
What is the car sales tax in Cowlitz County, WA?
About 8.2% combined around Longview, plus a 0.3% motor-vehicle add-on on a purchase.
Does Cowlitz County require an emissions test?
No — Washington ended emissions testing statewide on January 1, 2020.