Wisconsin — quick answer
In Wisconsin, a bill of sale is recommended for a private vehicle sale and notarization is not required. No witnesses are required. The relevant state form is MV1. Ownership is transferred through the Wisconsin DMV via the assigned title.
Wisconsin's rules can vary by county or transaction. We've based this on official sources, but please confirm the exact requirement with the Wisconsin DMV before you sign.
Is a bill of sale required in Wisconsin?
Recommended. Transfer is by the title assignment plus the MV1 application; a sample bill of sale is in the MV2928 instructions.
Seller assigns the title; the buyer titles and registers with WisDOT (the seller can notify online).
Does a Wisconsin bill of sale need to be notarized?
Not required. No notarization required.
Witness requirements
No. Wisconsin 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 Wisconsin
- 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 and registers with WisDOT (the seller can notify online).
- 3Register with the Wisconsin DMV.
The buyer titles and registers the vehicle, bringing Title & License Application (MV1) / Selling Instructions (MV2928) (MV1). Confirm the current fees and documents on the official Wisconsin DMV page.
Official Wisconsin sources
- Wisconsin Department of Transportation (WisDOT), DMV — 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.
Wisconsin bill of sale by type
Get requirements and a free template tailored to Wisconsin for each item type — the generator applies the Wisconsin notary and witness rules automatically:
Wisconsin bill of sale — FAQ
Is a bill of sale required in Wisconsin?
In Wisconsin, a separate bill of sale is recommended. Transfer is by the title assignment plus the MV1 application; a sample bill of sale is in the MV2928 instructions.
Does a Wisconsin bill of sale need to be notarized?
No. No notarization required.
Do I need a witness for a bill of sale in Wisconsin?
No. Wisconsin does not require witnesses for a standard private bill of sale.
How do I transfer a vehicle title in Wisconsin?
Seller assigns the title; the buyer titles and registers with WisDOT (the seller can notify online). Titling and registration in Wisconsin are handled by the Wisconsin Department of Transportation (WisDOT), DMV.
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.