Regional Transit Authority (RTA) tax
Residents of King, Pierce, and Snohomish counties who live within the Sound Transit District (www.soundtransit.org) are required to pay the Regional Transit Authority (RTA) tax upon purchase or renewal of a new or used vehicle. This tax helps fund construction and operation of Sound Transit's regional mass transit services. The current rate of 1.1% has been approved by the voters in the Sound Transit District.
For more information on Sound Transit's system expansion, please visit Sound Transit.
How is the RTA tax calculated?
The RTA tax is a motor vehicle excise tax (MVET) calculated from the depreciated value of your vehicle. It is determined by using a formula based on the vehicle manufacturer's suggested retail price (MSRP), or purchase price for commercial trucks and commercial trailer, and a depreciation schedule set by state law based on the age of the vehicle (years of service).
The following formula shows how the fee is calculated:
Current year - year of vehicle + 1 = years of service (value decreases each year in service)
Original MSRP x depreciated percentage = Depreciated value (based on years in service)
Depreciated value x 1.1% (current RTA rate) = RTA amount due
Example for a 2012 Toyota Prius:
MSRP: $24,000
Depreciation years: 2018 (or "current year") - 2012 (year make of vehicle) = 6 + 1 year (to account for first year of offer) = 7 total years of depreciation
7th year depreciation amount = 57% (according to current schedule)
$24,000.00 (original MSRP) x 57% (depreciation) = $13,680.00 (reduced value)
$13,680.00 (reduced value) x 1.1% (current RTA excise tax rate) = $150.00 due
This method of calculating the tax ensures that owners of the same type of vehicle pay the same amount of tax. The MVET value is not based on the fair market value of the vehicle and can be either higher or lower than the vehicle's fair market value or the amount the owner paid for the vehicle.
When is the RTA tax collected?
- When you renew your tabs.
- When you purchase a new or used vehicle and register it in your name.
Can I dispute my RTA vehicle valuation?
Yes. If you have questions about your vehicle valuation or to dispute it, contact us:
- Phone: 360.902.3770
- (TTY call 711)
State law requires us to use the manufacturer's suggested retail price (MSRP) to calculate the tax. When the MSRP isn't available at the time of initial registration in Washington State, we'll determine the value using:
- Any guidebook, report, or compendium of recognized standing in the automotive industry.
- or
- The selling price and year of sale of the vehicle.
Use our online estimator
Find out if you're required to pay and get an estimate of the fee:
- New vehicles (never owned before) Estimate your Regional Transit Authority excise tax
- Used vehicles Calculate your vehicle tab fees
Which types of vehicles are subject to RTA tax?
| Vehicle type | Is RTA charged? (Vehicle scale weight 6,000 lbs or less) |
Is RTA charged? (Vehicle scale weight 6,001 lbs or more) |
|---|---|---|
| Antique car | Yes | Yes |
| Cargo van | Yes | No |
| Commercial vehicles | Yes | No |
| Exempt (state, county, local, tribal) | No | No |
| Farm exempt | No | No |
| Farm use | No | No |
| For hire | Yes | No |
| Government (Federal) | No | No |
| Medium electric car | Yes | Yes |
| Neighborhood electric car | Yes | Yes |
| Passenger vehicle | Yes | Yes |
| Private school | No | No |
| Stage | Yes | No |
| Taxi cab | Yes | Yes |
| Vehicle type | Is RTA charged? (Vehicle scale weight 6,000 lbs or less) |
Is RTA charged? (Vehicle scale weight 6,001 lbs or more) |
|---|---|---|
| Antique truck | Yes | No |
| Cargo van | Yes | No |
| Combination (farm use) | No | No |
| Combination (non-farm use) | Yes | No |
| Commercial | Yes | No |
| Exempt (state/county/local/tribal) | No | No |
| Farm exempt | No | No |
| Farm use | No | No |
| Fixed load | Yes | No |
| For hire | Yes | No |
| Government (federal) | No | No |
| Logging | Yes | No |
| Medium electric truck | Yes | No |
| Neighborhood electric truck | Yes | No |
| Off road vehicle (ORV) | No | No |
| Passenger truck | Yes | No |
| Private school truck | No | No |
| Stage | Yes | No |
| Tow truck | Yes | No |
| Vehicle type | Is RTA charged? (Vehicle scale weight 6,000 lbs or less) |
Is RTA charged? (Vehicle scale weight 6,001 lbs or more) |
|---|---|---|
| Combination (non-farm use) | Yes | No |
| Commercial | No | No |
| Government (Federal) | No | No |
| Exempt (state/county/local/tribal) | No | No |
| Farm exempt | No | No |
| House dolly | Yes | Yes |
| Intermittent use trailer | Yes | N/A |
| Logging | No | No |
| Motorcycle trailer - commercial use | No | No |
| Personal use trailer | Yes | N/A |
| Travel trailer - antique | No | No |
| Travel trailer | No | No |
| Vehicle type | Is RTA charged? (Vehicle scale weight 6,000 lbs or less) |
Is RTA charged? (Vehicle scale weight 6,001 lbs or more) |
|---|---|---|
| Antique motorcycle | Yes | Yes |
| Exempt (state/county/local/tribal) | No | No |
| Farm exempt | No | No |
| Government (Federal) | No | No |
| Moped | No | No |
| Motorcycle | Yes | Yes |
| Off-road motorcycle | No | No |
| Vehicle type | Is RTA charged? (Vehicle scale weight 6,000 lbs or less) |
Is RTA charged? (Vehicle scale weight 6,001 lbs or more) |
|---|---|---|
| ATV - All Terrain Vehicle (WATV) | No | No |
| Converter gear | No | No |
| Camper | No | No |
| Farm exempt off-road | No | No |
| Mobile home | No | No |
| Motorhome | Yes | Yes |
| Off-road vehicles (ORV) | No | No |
| Snowmobile | No | No |
Can I deduct any of my fees from my federal taxes?
Regional Transit Authority (RTA) Motor Vehicle Excise Tax and Watercraft Excise Tax may be deductible. Check with your tax advisor.
What did I pay for RTA taxes on my last renewal?
For tax purposes, you may want to know your previous year's RTA fee. You can find this amount in the box labeled RTA on your vehicle registration.
Related information
- Sound Transit website (www.soundtransit.org)
- Is your address inside the RTA? (www.soundtransit.org)
