Before signing a bill of sale, both parties should confirm that the document matches the actual transaction.
The seller should make sure they legally own the property and have the authority to transfer it. If there is a lien, loan, lease, or other encumbrance on the property, the seller should disclose it before the buyer pays.
The buyer should inspect the property, check identifying numbers, review title documents when relevant, and confirm whether taxes, registration fees, or transfer fees apply. For vehicles, the buyer should check state DMV rules because a bill of sale alone may not complete the title transfer.
For sales of goods, Uniform Commercial Code Article 2 may be relevant because it governs many sales of goods in the United States. However, states may adopt or modify UCC rules differently, and specific transactions may require additional documents.
A bill of sale may need to be used with other documents when the transaction involves more than an immediate transfer of property. For example, if the buyer will pay the purchase price in installments, the parties can add a Promissory Note that sets out the payment schedule, interest, late fees, and consequences of nonpayment. This may be useful when selling expensive equipment, a vehicle, or other high-value property over time.
A Non-Disclosure Agreement may also be appropriate if the sale involves confidential information. For example, the transfer of business equipment, prototypes, customer records, technical documentation, or proprietary software may expose sensitive commercial details. In that case, an NDA can restrict how the buyer uses or shares that information, while the bill of sale records the transfer of the asset itself.