What a bill of sale does and why you need one

A bill of sale is a written record that you sold a car to someone else on a specific date for a specific price. It protects both the seller and the buyer by documenting the transaction in writing. When you sell a car privately—not through a dealer—a bill of sale becomes your proof that the sale happened, who paid what, and when ownership changed hands.

Without a bill of sale, disputes can arise. A buyer might claim they paid less than they actually did. A seller might be held responsible for parking tickets or accidents that happen after the sale. Some states require a bill of sale before the buyer can register the vehicle in their name. Even in states where it is not legally required, having one protects you both.

A bill of sale is not the same as a title. The title is the legal document that proves ownership and is issued by your state's Department of Motor Vehicles. A bill of sale is a receipt—it shows the transaction happened, but the title transfer is what actually moves ownership.

Key Takeaways

  • A bill of sale documents the sale price, date, and both parties' names and addresses, and protects both seller and buyer from disputes.
  • Some states require a bill of sale before the buyer can register the vehicle; others do not, but having one is still wise.
  • You can use a state-specific template from your Department of Motor Vehicles, a generic template, or write one yourself as long as it includes the essential information.
  • Both the seller and buyer should sign and date the bill of sale, and each should keep a copy for their records.
  • A bill of sale does not transfer the title; you must also complete a title transfer through your state's DMV after the sale.

What information must go on a bill of sale

A bill of sale should include the seller's full name and address, the buyer's full name and address, the vehicle identification number (VIN), the make and model of the car, the year, the mileage at the time of sale, the sale price, and the date of the sale. Some states also ask for the odometer reading and whether the title is clear or has a lien against it.

The sale price matters. Write the actual amount paid, even if it is less than the car's market value. Some people try to write a lower price to reduce taxes or registration fees, but this is fraud in most states and can create problems for both parties if discovered. Write the true amount.

If the car has a lien on it—meaning a bank or lender still owns part of it—that must be stated on the bill of sale. The buyer needs to know they are not getting a clear title until that lien is paid off. The seller is responsible for paying off the lien before or at the time of sale, or the buyer will not be able to register the vehicle.

State-specific templates versus generic forms

Your state's Department of Motor Vehicles may provide an official bill of sale template. Check your state's DMV website first—if one exists, using it ensures you include everything your state requires and that your document will be accepted when the buyer goes to register the car. Some states have specific wording or formatting requirements.

If your state does not provide a template, you can use a generic bill of sale form from a legal document website or create one yourself. A generic form works in most states as long as it includes the essential information: both parties' names and addresses, the vehicle details, the sale price, and the date. You do not need a lawyer to write one.

Whether you use a state template or a generic form, read it carefully before signing. Make sure all the information is correct and complete. Handwritten corrections are acceptable as long as both parties initial them.

How to fill out and sign the bill of sale

Print or write the bill of sale clearly so all information is legible. Fill in the seller's name and address, the buyer's name and address, the vehicle's VIN (found on the dashboard or title), the make, model, year, and current mileage. Write the sale price in both numbers and words to avoid confusion—for example, "$5,500" and "Five thousand five hundred dollars."

Write the date of the sale. Both the seller and buyer should sign and date the document in front of each other if possible. Some states do not require notarization, but having a notary public witness the signatures adds an extra layer of proof and can be useful if a dispute arises later. Check your state's requirements; a few states do require notarization for a bill of sale to be valid.

Make at least two copies—one for the seller and one for the buyer. If you had the document notarized, ask the notary for extra certified copies. Keep your copy in a safe place. The buyer will need their copy when they go to the DMV to register the vehicle.

When the bill of sale is not enough

A bill of sale proves the sale happened, but it does not transfer the title. After you sign the bill of sale, you must also complete a title transfer through your state's DMV. The process varies by state, but generally the seller signs the back of the title, and the buyer takes both the title and the bill of sale to the DMV to register the vehicle in their name.

Some states allow the seller to mail in the title transfer form, while others require the seller to appear in person. A few states allow the buyer to handle the entire transfer if the seller provides a signed, notarized power of attorney. Check your state's DMV website for the exact steps and required documents.

Until the title is transferred, the seller remains the registered owner in the state's records. This means you could still be contacted about parking tickets, accidents, or other issues involving the vehicle. Complete the title transfer promptly after the sale to protect yourself.

What to do if the buyer does not complete the title transfer

If weeks pass and the buyer has not registered the vehicle, contact them and ask about the delay. Sometimes people put off registration, not realizing the seller remains liable. Provide them with the bill of sale and title transfer instructions for your state.

If the buyer ignores your requests or you cannot reach them, contact your state's DMV. Many states allow a seller to file a notice of sale or a release of liability, which removes the seller from the registration and protects them from future liability. The exact form and process depend on your state, but this step is important if the buyer is unresponsive.

Keep your copy of the bill of sale and any written communication with the buyer. If a problem arises—a ticket, an accident, or a lien—you can show the DMV that you sold the vehicle and when, which protects you from responsibility.

Common mistakes to avoid

Do not leave blanks on the bill of sale. If a field does not explore—for example, if there is no lien—write "none" or "N/A" rather than leaving it empty. An incomplete form can be challenged or rejected by the DMV.

Do not write a false sale price. Even if you and the buyer agree to report a lower amount to reduce taxes, this is illegal and can result in fraud charges for both parties. Write the actual amount paid.

Do not assume the bill of sale is complete. After signing, make sure the buyer knows they must take it to the DMV along with the signed title to register the vehicle. If they do not complete the registration, you remain the registered owner and could face liability.

Do not lose your copy. Keep it with your vehicle records for at least a few years. If a dispute arises later, you will need proof of when and to whom you sold the car.

Frequently Asked Questions

Do I need a bill of sale if my state does not require one?

Even if your state does not legally require a bill of sale, having one protects both you and the buyer. It documents the transaction, the price, and the date, which can prevent disputes later. It costs nothing to create and takes a few minutes.

Can I use a bill of sale from another state?

A generic bill of sale from another state will usually work, but check your state's DMV website first to see if there is a specific form or wording requirement. Using your state's official template, if one exists, is the safest choice.

What if the buyer wants to pay me after I hand over the car?

Do not hand over the car, keys, or title until you have received full payment. Once the buyer has the vehicle, you have little leverage to collect. Agree on a payment method and timing before the sale, and do not release anything until the money is in your account.

Does a bill of sale need to be notarized?

Most states do not require notarization, but a few do. Check your state's DMV website. Even if it is not required, notarization adds credibility and can be useful if a dispute arises. A notary public charges a small fee, usually $5 to $15.

What happens if I sell a car with an outstanding loan on it?

You must pay off the loan before or at the time of sale. The lender holds the title until the loan is paid. You cannot transfer a clear title to the buyer until the lien is removed. Disclose this on the bill of sale and make sure the payoff happens before the buyer takes the car.