Everything you need to know about a Trailer Bill of Sale

What is a Trailer Bill of Sale?

A Trailer Bill of Sale is a legal document that records the sale of a trailer — utility, cargo, boat, horse, travel, or commercial — and transfers ownership from the seller to the buyer. It serves as proof of the transaction for both parties and is required by most states when titling, registering, or insuring the trailer in the buyer's name.

What a Trailer Bill of Sale should include?

A complete Trailer Bill of Sale captures the full legal names and addresses of buyer and seller, the trailer's identifying details (make, model, year, type, length, weight, color, VIN or serial number), the agreed sale price (or "gift" if no money changes hands), the date of sale, payment method, and the signatures of both parties. Some states require a notarized signature — check your state's specific requirements before signing.

Why both parties need one?

For the buyer, the Bill of Sale is the document that lets you title, register, and insure the trailer. For the seller, it's the record that releases you from future liability tied to the trailer — accidents, citations, or unpaid registration fees that occur after the sale date are no longer your responsibility. Both parties should keep a signed copy with their records.

State, titling, and tax considerations?

Trailer titling and registration rules vary by state and by trailer weight and type. Most states require a title for trailers above a certain unladen weight (often 1,500–3,000 pounds), and lighter utility trailers may need registration only. Commercial trailers and travel trailers often have additional requirements. States typically collect sales tax at the time of registration based on the price listed on the Bill of Sale. Check your state's Department of Motor Vehicles for the exact rules.