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A Wisconsin Bill of Sale provides written proof of the transaction of personal property between a buyer and seller. It documents key details and terms such as the names of both parties, the item’s description, sale amount, and date of transfer, which can serve as a legal record of the transaction.
Last Update December 23rd, 2025
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A Wisconsin Bill of Sale (BOS) is a document that verifies the legal transfer of ownership of personal property. The types of personal property that you can typically use a Bill of Sale for include:
It includes important details like the full names of the buyer and seller, the sale price, item description, and signatures.
While not always required by law, a Bill of Sale can help support title transfers, registration, and protect you from liability in private sales, especially for firearm sales.
If you purchase a vehicle in Wisconsin, you must title and register it within 10 business days of the transaction. The Wisconsin Division of Motor Vehicles handles this process. If you do not meet the deadline, it can result in late fees.
To complete vehicle registration, the following documents are required:
In Wisconsin, registrations can be submitted online, in person at DMV service centers, or by mail.
All motorized boats and sailboats 12 feet or longer must be titled and registered with the Department of Natural Resources (DNR) according to state law (§30.51(2)(a)). You must also register your new boat within 10 days of the transaction if you purchase one.
Required documentation for registration includes:
Wisconsin does not allow any state government agency to require private gun owners to register their firearms.
However, when selling a gun in a private transaction, it is highly recommended to use a Firearm Bill of Sale to document the transfer and protect yourself from liability if the firearm is misused in the future.
Wisconsin residents who wish to carry a concealed weapon must have a Concealed Carry Weapons Permit and must be at least 21 years of age.
Yes, you can write your own Bill of Sale in Wisconsin, but it’s important to ensure that the document is legally binding by including all the required information. You can also have a lawyer review your document once you've drafted it.
