Vehicle Bill of Sale for Private Party Car Sales: What You Need

What a bill of sale actually does

A bill of sale is a legal record that a specific vehicle transferred between two specific people on a specific date for a specific price. For the seller, it documents that you no longer own the vehicle after the sale date. That matters if the buyer later gets a parking ticket, toll violation, or is in an accident with the vehicle. For the buyer, it's the paper trail for insurance, registration, and any future dispute about the agreed terms.

Most states require a bill of sale alongside the signed title to process a title transfer. Even in states where it's technically optional, skipping it leaves both parties without documentation of a transaction that's often worth thousands of dollars.

Federal odometer disclosure: when it's required

For any vehicle under 10 years old, federal law (49 U.S.C. § 32705) requires the seller to provide a written odometer disclosure at the time of sale. This discloses the current mileage and states whether it accurately reflects the vehicle's actual mileage.

The disclosure can be made on the title itself (most state titles have a dedicated section) or in a separate disclosure document. Intentionally providing a false odometer reading is a federal crime, and the disclosure creates a paper record if a dispute arises later.

If your vehicle is under 10 model years old, your bill of sale or title must include this disclosure. If the vehicle is 10 years old or older, federal law no longer requires it, though some states have their own requirements.

The as-is clause: why sellers need it

Unless you're providing an explicit warranty, include a clear as-is clause: the buyer accepts the vehicle in its current condition and the seller makes no warranties, express or implied, regarding the vehicle's condition or fitness for any purpose.

Without this clause, a buyer can potentially come back after the sale claiming the car had a problem you didn't disclose. The as-is clause closes that door, but only if the buyer acknowledges it in writing by signing. Both parties signing the bill of sale, which includes the clause, creates that acknowledgment.

State DMV title transfer: what else you need

A bill of sale is typically one of several required documents. You'll also need the signed vehicle title (notarization is required in some states), possibly a separate odometer disclosure if your state requires one independent of the bill of sale, and a release of liability filed with your state DMV.

The release of liability is critical for the seller. It notifies the DMV that the vehicle has changed hands and protects you from tickets and tolls incurred after the sale date. Most states let you file it online on the DMV's website, and it's usually free.

Requirements vary by state, so check your specific state DMV website before completing the sale.

What to do after signing

Both parties should keep a signed copy of the bill of sale.

The seller should file a release of liability with your state DMV right away (don't wait), notify your insurance company that the vehicle has been sold, and keep the signed bill of sale permanently.

The buyer should register the vehicle in their name within the state's required window (typically 30 to 90 days), get insurance before driving the vehicle, and keep their signed copy as proof of the sale price for registration and tax purposes.

The price on the bill of sale is what the buyer typically pays sales tax on when registering, so accuracy matters.