What a Massachusetts bill of sale is and why you need one
A bill of sale is a written record that you sold a car to someone else. In Massachusetts, it documents the sale price, the vehicle details, the seller's name and address, the buyer's name and address, and the date of the transaction. The Registry of Motor Vehicles does not require a bill of sale to transfer title, but you should create one anyway — it protects both you and the buyer by proving the sale happened, at what price, and in what condition.
If you are the seller, a bill of sale protects you by showing you no longer own the car on a specific date. If you are the buyer, it proves you paid for the vehicle and what you paid. Without one, disputes over ownership, price, or the car's condition become much harder to resolve.
Massachusetts does not have an official state form for a bill of sale, so you can write one yourself or use a template. Either way, the document should be signed by both the seller and the buyer, and each party should keep a copy.
Key Takeaways
- Massachusetts does not require a bill of sale to transfer a car title, but creating one protects both the buyer and seller by documenting the sale price, date, and vehicle condition.
- The bill of sale must include the vehicle identification number (VIN), make, model, year, sale price, seller's full name and address, buyer's full name and address, and the date of sale.
- Both the seller and buyer must sign the bill of sale in front of a witness or notary public, though a notary is not legally required in Massachusetts.
- You can write a bill of sale yourself using a template or plain language, as long as it contains all required information and is signed by both parties.
- Keep your copy of the signed bill of sale for your records, even after the title transfer is complete at the Registry of Motor Vehicles.
What information must go in a Massachusetts bill of sale
The bill of sale should include the vehicle's complete identification: the VIN (vehicle identification number), make, model, year, and color. You can find the VIN on the dashboard, the driver's side door jamb, or the title document itself. Do not leave this blank — it is the only way to prove which specific car was sold.
Include the sale price in words and numbers. Write "Five thousand dollars ($5,000)" rather than just a number. If the car is being sold for no money (a gift, for example), write "No consideration" or "Gift" instead of a blank line.
Add the seller's full legal name, street address, and city and state. Do the same for the buyer. Include the date the sale took place. At the bottom, both the seller and the buyer must sign and print their names. Some people add a line for the odometer reading at the time of sale, which can be useful but is not required.
How to sign and witness a bill of sale
Both the seller and buyer must sign the bill of sale. Massachusetts law does not require the signatures to be notarized, but having a notary public witness the signatures adds legal weight and makes the document harder to dispute later. If you choose to use a notary, the notary will watch both parties sign, verify their identities, and stamp the document.
If you do not use a notary, you can have a third party (a friend, family member, or colleague) witness both signatures. The witness should print their name and sign next to a line that says "Witness." This is not as strong as a notary's seal, but it does show that someone else saw both parties sign.
At minimum, both the seller and buyer should sign and print their names. Each party should receive a signed copy. Keep your copy in a safe place — you may need it if questions arise about the sale later.
When to use a bill of sale with the Registry of Motor Vehicles
When the buyer takes the signed bill of sale to the Registry of Motor Vehicles to register the car in their name, they will also need the current title document, a completed process for Registration (Form 1), and proof of insurance. The Registry does not ask for the bill of sale specifically, but it is good practice to bring it anyway as proof of the transaction.
The seller does not need to do anything at the Registry. Once you have signed the bill of sale and handed over the title, your responsibility for the vehicle ends. However, you may want to notify the Registry in writing that you no longer own the car, especially if the buyer does not register it right away. This protects you if the car is involved in an accident or traffic violation before the new owner registers it.
Keep your copy of the bill of sale for at least three to five years. If a dispute arises about the sale price, condition, or date, the bill of sale is your proof.
What to do if the buyer or seller refuses to sign
If the buyer refuses to sign a bill of sale, that is a red flag. A legitimate buyer should have no reason to avoid documenting the purchase. If you are the seller and the buyer will not sign, do not hand over the title or keys. Walk away from the sale.
If you are the buyer and the seller refuses to sign a bill of sale, you should also reconsider the purchase. A seller who will not document the sale in writing may be hiding something — unpaid loans on the car, outstanding tickets, or a salvage title. Get the bill of sale signed before you pay any money.
In either case, a bill of sale protects you. It is not a complicated or unusual request, and any honest buyer or seller will sign one without hesitation.
Using a template versus writing your own
You can find bill of sale templates online through the Massachusetts Secretary of State's website, legal document services, or general template sites. A template saves time and ensures you do not forget any required information. Look for one labeled specifically for Massachusetts, though the basic format is similar in most states.
You can also write a bill of sale from scratch using plain language. Start with a line that says "Bill of Sale," add the date, and then include each piece of information in a clear order: vehicle details, sale price, seller information, buyer information, and signature lines. As long as both parties sign it and it contains the key facts, it is valid.
Whether you use a template or write your own, make sure both the seller and buyer understand what they are signing. Read it aloud together if needed. The goal is a document that both parties agree to and that clearly shows what was sold, for how much, and on what date.
What happens if you lose your copy of the bill of sale
If you lose your signed bill of sale after the sale is complete, you can still prove the transaction happened through other documents. Bank records, cancelled checks, or payment app records (Venmo, PayPal, etc.) can show that money changed hands. The Registry of Motor Vehicles records will show who currently owns the car and when the title was transferred.
If a dispute arises and you need to prove the sale took place, gather whatever documentation you have: emails about the sale, text messages, photos of the car with timestamps, or witness statements from people who were present. These are not as strong as a signed bill of sale, but they can help establish what happened.
This is why keeping your copy in a safe place — a file folder, a safe deposit box, or a digital scan — is worth the effort. A bill of sale costs nothing to create and takes minutes to sign, but it can save you months of headache if something goes wrong.
Frequently Asked Questions
Do I need a bill of sale if I am trading in my car at a dealership?
No. Dealerships handle their own paperwork and do not use a standard bill of sale. The dealership will provide you with a trade-in receipt and handle the title transfer through the Registry of Motor Vehicles. Keep the trade-in receipt for your records.
Can I write a bill of sale on a piece of notebook paper?
Yes. There is no requirement that it be printed or formal. As long as it contains all the key information (VIN, sale price, names, addresses, date, and signatures from both parties), a handwritten bill of sale is legally valid in Massachusetts.
What if the buyer wants to pay me in cash after I sign the bill of sale?
You can sign the bill of sale before or after payment — it does not matter legally. However, as the seller, do not hand over the title or keys until you have received the full payment. If you are the buyer, do not hand over payment until you have a signed bill of sale in your hands.
Do I need to register the bill of sale with the Registry of Motor Vehicles?
No. The bill of sale is a private document between the buyer and seller. You do not file it with the Registry. However, bring it with you when you register the car so you have proof of the transaction if questions arise.
Can I use a bill of sale if the car has a loan on it?
Yes, but the seller must pay off the loan before the title can be transferred to the buyer. The bill of sale documents the sale, but the lender must release their claim on the title first. Work with your lender to understand the payoff process before you sign anything.