Wyoming Vehicle Bill of Sale

Do I need a bill of sale to sell a car in Wyoming?

Yes. Wyoming requires a bill of sale for private vehicle purchases. The buyer must present a notarized bill of sale or notarized affidavit of gift at the county treasurer's office when applying for a new title. The bill of sale must include the vehicle's year, make, model, VIN, sale price, date of sale, and the names and signatures of both parties. The stated purchase price is used to calculate the applicable sales and use tax.

Does a Wyoming bill of sale need to be notarized?

Yes. Wyoming requires notarization throughout the vehicle transfer process. All sellers must sign the certificate of title in the presence of a notary public, and the buyer must sign the purchaser's application before a notary. For private-party purchases, the buyer must present a notarized bill of sale at the county treasurer's office. County clerk offices provide notary services, but both parties should plan for an in-person meeting. Because of this notarization requirement, electronic signatures cannot substitute for the in-person process.

How long do I have to title a vehicle after purchase in Wyoming?

The buyer has 30 calendar days from the date of purchase to apply for a title at the county treasurer's office for private-party purchases. The buyer can legally drive the vehicle during this period when accompanied by a properly executed title. If the title is held by a lienholder, a notarized bill of sale allows the buyer to drive for up to 45 days while the title is delivered. Sales tax must be paid within 65 days of purchase to avoid penalties.

How much is the sales tax on a private vehicle sale in Wyoming?

Wyoming imposes a 4% state sales and use tax on vehicle purchases. Local jurisdictions may add up to 2% more, for a combined rate of up to 6% depending on the county. The tax is paid at the county treasurer's office at the time of titling. Family transfers (between spouses, parents and children) may be exempt from the sales tax with proper documentation. An Affidavit of Vehicle Valuation based on the manufacturer's suggested retail price is also required for registration purposes.

Is an odometer disclosure required in Wyoming?

Yes. Wyoming requires an odometer disclosure statement for vehicles manufactured within the past 10 years (and model year 2011 and newer under updated federal rules through 2030). Both the seller and the buyer must sign the odometer disclosure. The disclosure can be completed on the title or on a separate conforming odometer statement. The reading must indicate whether the mileage is actual, exceeds mechanical limits, or reflects a discrepancy.

Can I use electronic signatures on a Wyoming bill of sale?

No. Wyoming requires the bill of sale to be notarized, with both parties signing before a notary public. The title transfer also requires notarized signatures from all sellers and the buyer's notarized purchaser's application. County treasurer and county clerk offices provide notary services free of charge, but both parties must appear in person with valid government-issued identification. This makes Wyoming one of the few states where the entire vehicle transfer process requires physical presence before a notary.

What does the seller need to do after selling a car in Wyoming?

After selling a vehicle in Wyoming, the seller must sign the title in the presence of a notary and deliver it to the buyer. The seller should remove their license plates, as plates stay with the owner in Wyoming. The seller should also cancel their insurance policy for the sold vehicle and retain a copy of the bill of sale and title assignment for their records. Wyoming does not have a formal seller's notification-of-sale requirement like some other states, but keeping documentation protects against future liability.

What if the vehicle has multiple owners?

If the vehicle is titled to more than one person, all owners on the title must sign the bill of sale. Use the "Add a co-seller" option on the form to add the second seller's name and address. Both sellers' names and signature lines will appear on the document. For electronic signing, each co-owner can sign on the same device in sequence, or the document can be passed from one device to another via QR code or shared link. Both buyers can likewise be named on the bill of sale using the "Add a co-buyer" option.