Documents Required to Sell a Trailer in Washington
Selling a trailer through a private party transaction in Washington requires several key documents to ensure a smooth title transfer and protect both the buyer and seller. Below is a complete checklist of the paperwork you need before completing the sale.
Required documents checklist
- Vehicle title — The original title must be signed by the seller and transferred to the buyer. This is the primary proof of ownership.
- Bill of sale — A signed bill of sale records the transaction details including buyer and seller names, sale price, date, and vehicle description.
- Odometer disclosure statement — Federal law requires an odometer reading for most motor vehicle sales. Record the mileage at the time of sale.
- Release of liability — Notify the Washington DMV that you have sold the trailer to protect yourself from future liability.
- Valid identification — Both buyer and seller should present government-issued photo ID at the time of the transaction.
Washington title transfer notes
Keep a signed bill of sale, complete title transfer promptly, and retain seller records in case of post-sale disputes.
Official DMV resource: Washington DMV title transfer information
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Create Washington Trailer Bill of SaleWashington Trailer transfer fees and requirements
In Washington, the title transfer fee is $12 and registration costs $30 plus RTA tax in certain areas. Trailer sales are subject to 6.5% state sales tax plus local taxes (up to ~10.4%). Washington does not require notarization for private-party trailer transfers. Emission testing is required in Washington — verify the trailer passes before completing the sale.
- Department of Licensing (DOL) handles titles and registration
- Emissions testing required in parts of King, Pierce, Snohomish, Clark, and Spokane counties
- Use tax applies to private party purchases
- Electric vehicle fee of $225 per year
Washington sales tax on trailer purchases
Washington has a 6.5% state sales tax rate. 6.5% state plus local taxes (total up to ~10.4%). Private-party trailer sales in Washington are subject to sales tax. Use tax applies to private party vehicle purchases. The title transfer fee is $12.
Trailer market data and safety information
The most common trailer makes in private-party sales are Big Tex, PJ Trailers, Carry-On, Sure-Trac, Load Trail. Average private-party trailer prices range from $1,500–$15,000. Trailers average 1.5 NHTSA recalls per model across categories including Tires, Electrical (lighting), Axle/Suspension.
Safety checkpoints for buying a used trailer
Before completing a trailer bill of sale in Washington, verify these safety items:
- Inspect hitch coupler and safety chains for wear and proper rating
- Check all lighting connections — trailer lights are the #1 reason for roadside stops
- Verify axle alignment and tire wear patterns
- Test electric or surge brakes if equipped
Trailer insurance and depreciation in Washington
Trailer insurance is optional in most states unless financed. Physical damage coverage is $100–$300/year. Utility trailers hold value exceptionally well — quality steel trailers retain 70–80% of value over 10 years. Peak season for private trailer sales is spring through early summer when landscaping and construction picks up, with an average of 14 days on market.
Trailer registration and titling
Trailers are classified as "Utility trailer (weight-class dependent)" for registration purposes. Trailers under 3,000 lbs may not require registration in some states. Over 3,000 lbs requires title and registration in most states. Federal odometer disclosure does not apply to trailers.
Washington bill of sale statistics
BillOfSaleNow has generated 2,241 bill of sale documents for Washington transactions, with 60 generated this month alone. The most popular vehicle type is car.
FAQ
What documents do I need to sell a trailer in Washington?
To sell a trailer in Washington, you typically need the vehicle title, a signed bill of sale, an odometer disclosure statement, and a release of liability form. Some transactions may also require a smog or emissions certificate.
Does Washington require a bill of sale for a trailer?
Yes. Washington sellers should keep a signed bill of sale for private trailer transfers.
How do I transfer a trailer title in Washington?
Sign the back of the title, complete a bill of sale with the buyer, and submit the transfer paperwork to the Washington DMV. Both parties should retain copies of all documents.