What a Massachusetts bill of sale is and why you need one

A bill of sale is a written record that you and the other party sign to document the sale of a car. In Massachusetts, it serves as proof that ownership changed hands, what price was paid, and on what date. The Registry of Motor Vehicles does not require a bill of sale to transfer title, but you should create one anyway—it protects both the buyer and seller if questions arise later about who owned the car, what condition it was in, or whether the sale actually happened.

Massachusetts law does not mandate a specific form for a bill of sale. You can write one yourself on plain paper, use a template, or buy a pre-printed form from an office supply store. What matters is that it includes the essential information: the names and addresses of both parties, the vehicle identification number (VIN), the year, make, and model, the sale price, the date of sale, and the signatures of both buyer and seller. Some people also note the odometer reading and the condition of the car (as-is, with warranty, etc.), which can prevent disputes later.

Key Takeaways

  • A bill of sale is not legally required by Massachusetts but is strongly recommended as proof of the transaction for both buyer and seller.
  • The bill of sale must include the seller's and buyer's names and addresses, the VIN, year, make, model, sale price, date, and signatures from both parties.
  • You can write a bill of sale yourself, use a free template, or purchase a pre-printed form; Massachusetts does not specify a required format.
  • The buyer will need the bill of sale when registering the car with the Registry of Motor Vehicles, even though it is not part of the title transfer itself.
  • Keeping a copy of the signed bill of sale protects you if the buyer later claims the car had undisclosed problems or if the seller disputes the sale.

What information must go on the bill of sale

Start with the basics: full legal names and current addresses for both the seller and the buyer. Use the name exactly as it appears on your driver's license or ID. Next, identify the vehicle clearly—write down the VIN (found on the dashboard at the base of the windshield, on the driver's side door jamb, or on the title itself), the year, the make, and the model. Do not rely on the license plate number alone; the VIN is what ties the car to its history and registration.

Record the sale price in words and numbers. For example: "One thousand five hundred dollars ($1,500.00)." Include the date of the sale. Many people also add the odometer reading at the time of sale, which can matter if the buyer later discovers the mileage was rolled back or if there is a dispute about the car's condition. You can note whether the car is sold "as-is" (meaning the buyer accepts it in its current condition) or with any warranty or may provide the seller is offering. Both parties should sign and print their names, and it is wise to have the signatures witnessed or notarized, though Massachusetts does not require it.

Where to find a bill of sale template or form

The Registry of Motor Vehicles does not provide an official bill of sale form, but several free templates are available online. The Massachusetts Secretary of State's website and the Registry of Motor Vehicles website sometimes link to sample forms. You can also search for "Massachusetts bill of sale template" and find PDFs you can read and print. Office supply stores like Staples sell pre-printed bill of sale pads designed for Massachusetts, which cost a few dollars and come with carbon copies so both parties keep a signed original.

If you prefer a more formal document, you can have an attorney draft one, though this is rarely necessary for a straightforward private sale. Some title companies and car dealerships also provide bill of sale forms if you are buying or selling through them. The key is to use a form that includes all the required information and leaves space for signatures. Do not skip this step just because a template feels like extra work—a signed bill of sale is your only proof of the transaction if something goes wrong later.

How the bill of sale fits into the title transfer process

The bill of sale and the title are two separate documents. The title is the official certificate of ownership issued by the Registry of Motor Vehicles; the bill of sale is your private record of the sale. When you sell a car in Massachusetts, you sign the back of the title to transfer ownership to the buyer. The buyer then takes both the signed title and the bill of sale to the Registry of Motor Vehicles to register the car in their name.

The Registry does not file or keep the bill of sale, but the buyer will need it as supporting documentation—it shows proof of purchase, the agreed price, and the date the ownership changed. If there is ever a dispute about when the sale occurred or what was promised, the bill of sale is the evidence you have. For this reason, keep your copy in a safe place, even after the transaction is complete. If you are the buyer, do not throw away the bill of sale once you have registered the car; it is part of your ownership record.

What to do if you lose the bill of sale or never created one

If you are the seller and the buyer later claims the car had problems you did not disclose, a bill of sale that notes the car was sold "as-is" can protect you. If you did not create one and the buyer sues, you will have a harder time proving what was agreed to. If you are the buyer and you discover a major problem after purchase, a bill of sale that documents the sale price and date may help you pursue a claim, especially if the seller promised repairs or a warranty.

If you have already sold or bought a car without a bill of sale, you cannot go back and create one retroactively—that would be falsifying a document. However, you can write a letter to the other party summarizing the sale (date, price, vehicle details) and ask them to sign it as a record of what happened. This is not as strong as a bill of sale signed at the time of sale, but it is better than nothing. Going forward, always create and sign a bill of sale before money changes hands, even if you know the other person well.

Common mistakes to avoid when writing a bill of sale

Do not leave blanks. Fill in every field, even if you have to write "not applicable" or "unknown." A blank space can be filled in later by someone else, which opens the door to fraud. Do not use nicknames or shortened names; use the legal name that appears on the ID of both parties. Do not forget the VIN—a license plate number is not enough and can refer to a different car if the plate is transferred. Do not write in pencil; use pen so the document cannot be altered after signing.

Do not skip the odometer reading if the car is less than ten years old, because federal law requires disclosure of mileage at the time of sale. Do not assume "as-is" is understood; write it clearly on the bill of sale so there is no later argument about whether the seller promised the car was in good working order. Do not sign the bill of sale before the money is exchanged; sign it at the same time the payment is made. And do not assume one copy is enough—both the buyer and the seller should keep a signed original, not a photocopy.

When you might want a notarized bill of sale

Notarization is not required in Massachusetts, but it adds a layer of protection. A notary public witnesses your signature, verifies your identity, and stamps the document. This makes it much harder for someone to later claim they did not sign the bill of sale or that the signature is forged. If you are selling an expensive car, buying from a private seller you do not know well, or if there is any reason to expect a dispute, paying a notary (usually $5 to $15) is worth the peace of mind.

You can find notaries at banks, law offices, title companies, and some UPS stores. Both the buyer and the seller should be present when the notary witnesses the signatures. Some people also ask a friend or family member to sign as a witness, which is free and provides some documentation, though it is not as official as notarization. If you are buying a car and the seller refuses to notarize the bill of sale or even to sign one, that is a red flag—it suggests they may not have clear title or may be hiding something about the car's history.

Frequently Asked Questions

Do I have to have a bill of sale to register a car in Massachusetts?

No, the Registry of Motor Vehicles does not require a bill of sale to transfer title. However, the buyer will need to present the signed title and proof of purchase (which a bill of sale provides) when registering the car. Without a bill of sale, the buyer may face questions about where the car came from or have difficulty proving they own it.

What if the buyer and I disagree on the sale price after we sign the bill of sale?

The bill of sale is a binding record of what you both agreed to. If you signed it stating the price was $5,000, you cannot later claim it was $6,000. This is why it is important to make sure the price is correct before you sign. If there is any dispute, the bill of sale is the evidence a court would look at.

Can I sell a car without a title if I have a bill of sale?

No. In Massachusetts, you must have the title to transfer ownership. A bill of sale alone does not transfer ownership; only the signed title does. If you have lost the title, you must get a duplicate from the Registry of Motor Vehicles before you can sell the car.

Should I keep the bill of sale after I sell the car?

Yes. Keep your copy for at least several years. If the buyer later claims you sold them a car with hidden damage or if there is a dispute about the sale, the bill of sale is your proof of what was agreed to and when. It also protects you if the buyer fails to register the car and it is later involved in an accident or crime.

What if I am buying a car and the seller will not give me a bill of sale?

Do not complete the purchase. A seller who refuses to sign a bill of sale is a serious warning sign. It suggests they may not have clear title, may be hiding the car's history, or may plan to dispute the sale later. A legitimate seller has no reason to refuse a straightforward bill of sale.