Car sales tax in Washington
Washington: State retail sales/use tax (6.5%); Motor vehicle sales/use tax (0.5%, from Jan 1 2026); plus a local rate of 1.1% to 4.2% by where you live.
On a $30,000 used car from a dealer with no trade-in, the tax is $2,430.00–$3,360.00 and all taxes and government fees come to about $2,691.25–$3,621.25.
Trade-in: a $10,000 trade-in lowers the tax by $810.00–$1,120.00. Private sale ($15,000): tax $1,215.00–$1,680.00.
Estimate of government charges. Your DMV, tax office or county calculates the final amount.
Your own numbers
Set up for: buying from a dealer in Washington · Different situation?
Every line on a $30,000 dealer purchase
| Line | Group | Amount | Set by |
|---|---|---|---|
| State retail sales/use tax (6.5%) | State & local tax | $1,950.00 | Washington State Legislature (RCW) |
| Motor vehicle sales/use tax (0.5%, from Jan 1 2026) | State & local tax | $150.00 | Washington Department of Revenue |
| Local sales tax | State & local tax | $330.00–$1,260.00 | Washington Department of Revenue |
| Certificate of title application fee (dealer sale or lease) | Title | $40.00 | Washington State Legislature (RCW) |
| Title filing fee | Title | $6.50 | Washington State Legislature (RCW) |
| Title service fee | Title | $18.00 | Washington State Legislature (RCW) |
| Vehicle license fee (passenger car / SUV) | Registration & plates | $30.00 | Washington State Legislature (RCW) |
| Registration filing fee | Registration & plates | $6.00 | Washington State Legislature (RCW) |
| Registration service fee | Registration & plates | $11.00 | Washington State Legislature (RCW) |
| License service fee | Registration & plates | $0.75 | Washington State Department of Licensing |
| Motor vehicle weight fee (by scale/empty weight) | Registration & plates | $35.00 | Washington State Legislature (RCW) |
| Additional weight fee | Registration & plates | $10.00 | Washington State Department of Licensing |
| Original-issue license plate fee (plate 1 of 2) | Registration & plates | $50.00 | Washington State Legislature (RCW) |
| Original-issue license plate fee (plate 2 of 2) | Registration & plates | $50.00 | Washington State Legislature (RCW) |
| Plate reflectivity fee (plate 1 of 2) | Registration & plates | $2.00 | Washington State Legislature (RCW) |
| Plate reflectivity fee (plate 2 of 2) | Registration & plates | $2.00 | Washington State Department of Licensing |
| Sound Transit RTA motor vehicle excise tax (only inside the Sound Transit district) | Yearly taxes | you fill in | Washington State Department of Licensing |
How Washington taxes a car purchase
- Trade-in: Like-kind trade-ins (motor vehicle for motor vehicle) reduce the taxable price by the full agreed trade-in value, even if the trade-in has a loan. Cash back to the buyer reduces the trade-in credit. The RTA excise tax is not reduced by a trade-in.
- Private sale: Use tax at the full sales tax rate (state + 0.5% + local at your residence) is paid to DOL at title transfer. Purchase price is accepted if it is no more than 20% below the average retail value or the value is under $7,500; otherwise tax is on the average retail value unless you document a lower true value.
- Bought in another state: WA residents who buy outside the state owe WA use tax at their residence rate, less sales or use tax paid to another state (not licensing fees, lessor taxes or foreign VAT/GST).
- Local tax: Local rate by location from DOR's quarterly motor-vehicle rate flyer (403 locations, Q4 2026). Dealer sales use the dealer's location; use tax (private sale, out-of-state purchase) uses the owner's residence. Inside the Sound Transit district the RTA motor vehicle excise tax is separate (see annual_tax).
Exemptions (check the official rule before relying on one)
- Sales exempt from sales tax (interstate carriers, US Government, Tribes/Tribal citizens): Also exempt from the 0.5% motor vehicle tax.
- Clean alternative fuel / plug-in vehicle exemption (expired 07/31/25): Historic only; no longer available for new purchases.
Dealer fees
Doc, processing and prep fees are set by the dealer, not the state. Washington sets a maximum documentary fee of $200.00. Dealer documentary service fee: at most $200 per sale or lease, must be disclosed in writing as negotiable. Set by the dealer, not a state fee.
Official tools: DOL: Calculate your vehicle tab fees (plate or VIN needed) · DOL: Estimate your RTA excise tax (new vehicles) · DOR: Sales tax rate lookup by address
Sources
- Washington State Legislature (RCW): RCW 82.08.020 Tax imposed - Retail sales
- Washington Department of Revenue: Motor vehicle sales/use tax
- Washington Department of Revenue: Vehicles brought into Washington from out-of-state
- Washington State Legislature (RCW): RCW 46.17.100 Application fee (certificate of title)
- Washington State Legislature (RCW): RCW 46.17.005 Filing fees
- Washington State Legislature (RCW): RCW 46.17.040 Service fees
- Washington State Legislature (RCW): RCW 46.17.350 License fees by vehicle type
- Washington State Department of Licensing: Calculate vehicle tab fees
- Washington State Legislature (RCW): RCW 46.17.365 Motor vehicle weight fee
- Washington State Legislature (RCW): RCW 46.17.200 License plate fees
- Washington State Legislature (RCW): RCW 46.16A.200 License plates
- Washington State Department of Licensing: Regional Transit Authority (RTA) tax
- Washington State Department of Licensing: Buy and register a vehicle
- Washington Department of Revenue: Auto dealers guide: Trade-ins
- Washington Department of Revenue: Use Tax Facts for Vehicle Transactions (REV 32 2511, 11/2/21)
- Washington State Legislature (RCW): RCW 46.70.180 Unlawful acts and practices (dealer documentary service fee)
FAQ
How much is the sales tax on a car in Washington?
State retail sales/use tax (6.5%); Motor vehicle sales/use tax (0.5%, from Jan 1 2026); plus a local rate of 1.1% to 4.2% by where you live. On a $30,000 used car from a dealer that is $2,430.00–$3,360.00 in tax (estimate).
Does Washington charge tax on the price minus the trade-in?
Like-kind trade-ins (motor vehicle for motor vehicle) reduce the taxable price by the full agreed trade-in value, even if the trade-in has a loan. Cash back to the buyer reduces the trade-in credit. The RTA excise tax is not reduced by a trade-in.
Do you pay sales tax on a private car sale in Washington?
Use tax at the full sales tax rate (state + 0.5% + local at your residence) is paid to DOL at title transfer. Purchase price is accepted if it is no more than 20% below the average retail value or the value is under $7,500; otherwise tax is on the average retail value unless you document a lower true value.
What if I buy a car in another state and register it in Washington?
WA residents who buy outside the state owe WA use tax at their residence rate, less sales or use tax paid to another state (not licensing fees, lessor taxes or foreign VAT/GST).
Is there a cap on dealer doc fees in Washington?
Doc, processing and prep fees are set by the dealer, not the state. Washington sets a maximum documentary fee of $200.00. Dealer documentary service fee: at most $200 per sale or lease, must be disclosed in writing as negotiable. Set by the dealer, not a state fee.