Washington Car Sales Tax Calculator
Washington charges 7% retail sales tax (6.5%) plus the additional motor vehicle sales/use tax (0.5%) on a used car purchase, verified September 15, 2026. Local taxes also apply; the range is not verified. A trade-in is deducted before tax. Private-party sales are taxed too, paid when you title the car.
Figures verified September 15, 2026; sources linked per row. Re-checked quarterly, next due December 15, 2026.
Taxable amount: $25,000. Tax only; dealer doc fees, title and registration are separate, and some states tax the doc fee as part of the price. The local figure is an estimate from the state's published range unless you entered your own rate.
The Washington numbers, with sources
Each figure below was checked on September 15, 2026 against the page linked in the source column, and the wording the state uses is quoted so you can confirm it yourself.
| Item | Washington | Source |
|---|---|---|
| State rate (Retail sales tax (6.5%) plus the additional motor vehicle sales/use tax (0.5%)) | 7% | dor.wa.gov(state source)As published: “Through Dec. 31, 2025, the rate is .3%. Effective Jan. 1, 2026, the rate is .5%.” |
| Local tax range | Yes, range not verified | dor.wa.gov(state source)As published: “Through Dec. 31, 2025, the rate is .3%. Effective Jan. 1, 2026, the rate is .5%.” |
| Trade-in credit | Yes, full credit | dor.wa.gov(state source)As published: “For purposes of the retail sales tax measure, the selling price excludes 'trade-in property of like kind.'” |
| Dealer doc fee | $200 cap | app.leg.wa.gov(state source)As published: “An amount not to exceed $200 per vehicle sale or lease may be charged by a dealer to recover administrative costs” |
| Title fee | $15 to $40 | app.leg.wa.gov(state source)As published: “$40 upon the execution of a retail sale or lease agreement...through December 31, 2036” |
| Registration (by weight) | $65 to $112.50 | app.leg.wa.gov(state source)As published: “4,000 pounds $35.00; 6,000 pounds $65.00; 8,000 pounds $82.50; 16,000 pounds and over $96.00” |
| Private-party sale taxed | Yes, paid when you title the car | dor.wa.gov(state source)As published: “The purchase price is accepted as the vehicle's value if the purchase price is no more than 20% below the fair market value, or the fair market value is less than $7,500 (WAC 458-20-17802).” |
- Local tax: Local sales tax and Regional Transit Authority tax are added; retail sales tax is destination-based (location where the customer receives the vehicle) and use tax uses the location where the vehicle is first used in Washington. The DOR pages fetched did not state the local rate range.
- Doc fee: Documentary service fee may not exceed $200 per vehicle sale or lease, must be disclosed in writing as negotiable before the agreement is signed, and must be separately designated from the selling price.
- Registration: RCW 46.17.350 vehicle license fee $30 for a passenger car plus RCW 46.17.365 motor vehicle weight fee of $35 (4,000 lb or less), $65 (6,000 lb) or $82.50 (8,000 lb) through December 31, 2028 (rising to $35, $75 and $90 from January 1, 2029); plus $6 filing fee and $11 service fee per the DOL page, and RTA or transportation benefit district fees where applicable.
Next steps
- Out-the-door price calculator: adds the Washington doc fee, title and registration to the tax for the full figure.
- Dealer doc fees by state and registration and title fees by state: see how Washington compares.
- All states: the full sales tax table.
Tax is fixed. The price is not.
CarWorthIt prices a specific VIN at its mileage against cars actually for sale near your ZIP code from $2.99. The $9.99 Negotiation Bundle adds an opening offer and a walk-away figure, so the number Washington taxes is the right one.
Washington car tax questions
Does Washington charge sales tax on a private-party car sale?
Yes. Use tax at the same rate as retail sales tax is paid to the Department of Licensing (vehicle licensing office) when the title is transferred and the vehicle is registered. Use tax is based on fair market value; the purchase price is accepted as the value if it is no more than 20% below fair market value or the fair market value is under $7,500 (WAC 458-20-17802), otherwise documentation of a lower value is required.
Does Washington give a trade-in credit on car sales tax?
Yes. The value of your trade-in is deducted from the price before Washington tax is calculated.
What is the dealer doc fee cap in Washington?
Washington caps the dealer documentation fee at $200 (RCW 46.70.180(2)). Documentary service fee may not exceed $200 per vehicle sale or lease, must be disclosed in writing as negotiable before the agreement is signed, and must be separately designated from the selling price.
Do local sales taxes apply to car purchases in Washington?
Yes. Local sales tax and Regional Transit Authority tax are added; retail sales tax is destination-based (location where the customer receives the vehicle) and use tax uses the location where the vehicle is first used in Washington. The DOR pages fetched did not state the local rate range.
How much does a car title cost in Washington?
$15 to $40 (flat). RCW 46.17.100 as effective October 1, 2026: $15 standard certificate of title application fee; $40 when the title results from a dealer retail sale or lease, through December 31, 2036. DOL fee page (https://dol.wa.gov/vehicles-and-boats/vehicles/vehicle-registration/calculate-vehicle-tab-fees): '$15' for title application plus '$6.50 for the title only' filing fee and '$18 for title transactions' service fee.
How much is annual car registration in Washington?
$65 to $112.50 a year for a passenger car, by weight. RCW 46.17.350 vehicle license fee $30 for a passenger car plus RCW 46.17.365 motor vehicle weight fee of $35 (4,000 lb or less), $65 (6,000 lb) or $82.50 (8,000 lb) through December 31, 2028 (rising to $35, $75 and $90 from January 1, 2029); plus $6 filing fee and $11 service fee per the DOL page, and RTA or transportation benefit district fees where applicable.
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