Wyoming — quick answer
In Wyoming, a bill of sale is situational for a private vehicle sale and notarization is situational. No witnesses are required. The relevant state form is MV-300A. Ownership is transferred through the WYDOT via the assigned title.
Wyoming's rules can vary by county or transaction. We've based this on official sources, but please confirm the exact requirement with the WYDOT before you sign.
Is a bill of sale required in Wyoming?
Situational. County clerks (who administer titling) routinely require a notarized bill of sale as evidence of ownership and price.
Seller assigns the title; the buyer titles through the county Clerk and registers.
Does a Wyoming bill of sale need to be notarized?
Situational (situational). A notarized bill of sale is commonly required by county clerks as ownership evidence. Confirm your specific county clerk’s requirement.
Witness requirements
No. Wyoming does not require witnesses for a standard private bill of sale.
Odometer disclosure
Federal law requires a written odometer disclosure when title is transferred for vehicles less than 20 years old. As of 2026 that means model year 2011 and newer; model year 2010 and older are generally exempt. Record the exact mileage — never round it. See the NHTSA rule.
How to transfer a vehicle title in Wyoming
- 1Complete the bill of sale and title assignment.
Fill in the buyer, seller, price, odometer, and date. Both parties sign and date the document.
- 2Hand over the signed title.
Seller assigns the title; the buyer titles through the county Clerk and registers.
- 3Register with the WYDOT.
The buyer titles and registers the vehicle, bringing Application for Certificate of Title (MV-300A) (MV-300A). Confirm the current fees and documents on the official WYDOT page.
Official Wyoming sources
- Wyoming Department of Transportation (WYDOT) / County Clerks — buying & selling a vehicle
- NHTSA — federal odometer disclosure rule
We link to primary government sources and review this page regularly, but requirements change. This is general information, not legal advice.
Wyoming bill of sale by type
Get requirements and a free template tailored to Wyoming for each item type — the generator applies the Wyoming notary and witness rules automatically:
Wyoming bill of sale — FAQ
Is a bill of sale required in Wyoming?
In Wyoming, a separate bill of sale is situational. County clerks (who administer titling) routinely require a notarized bill of sale as evidence of ownership and price.
Does a Wyoming bill of sale need to be notarized?
Sometimes. A notarized bill of sale is commonly required by county clerks as ownership evidence. Confirm your specific county clerk’s requirement.
Do I need a witness for a bill of sale in Wyoming?
No. Wyoming does not require witnesses for a standard private bill of sale.
How do I transfer a vehicle title in Wyoming?
Seller assigns the title; the buyer titles through the county Clerk and registers. Titling and registration in Wyoming are handled by the Wyoming Department of Transportation (WYDOT) / County Clerks.
Is a bill of sale proof of ownership?
Generally no. For titled property like a car or boat, the title is what proves ownership. A bill of sale proves that a sale happened and records the price, date, and terms — it supports the title transfer but does not replace it. For untitled property (furniture, equipment, electronics), the signed bill of sale is usually the main proof of ownership.