What a bill of sale is and why Connecticut requires one
A bill of sale is a written record that you sold something to someone else. In Connecticut, a bill of sale is the document that proves ownership changed hands — it shows what was sold, who sold it, who bought it, how much they paid, and when the sale happened. You need one when you sell a car, boat, motorcycle, or other vehicle in Connecticut.
The state does not require a bill of sale by law for every transaction, but the Department of Motor Vehicles uses it as proof of the sale when you transfer the title. Without one, the DMV cannot process the transfer, and the new owner cannot register the vehicle in their name. If you sell without a bill of sale, you remain the registered owner on state records — which means you stay liable if the vehicle is in an accident or used in a crime.
A bill of sale also protects you as the seller. It shows the buyer knew the condition of the vehicle when they bought it, and it documents that you were paid. If a dispute arises later, the bill of sale is your proof of what was agreed.
Key Takeaways
- Connecticut does not legally require a bill of sale, but the DMV will not transfer the title without one, so you must have one to complete the sale.
- A bill of sale must include the vehicle identification number (VIN), the sale price, the date of sale, and the signatures of both the seller and buyer.
- You can use the official Connecticut DMV bill of sale form or write your own, as long as it contains all required information.
- The seller keeps one copy, the buyer keeps one copy, and the buyer submits a copy to the DMV when they register the vehicle.
What information must go on a Connecticut bill of sale
A bill of sale must include the vehicle's VIN (vehicle identification number), which is a 17-character code unique to that car or truck. You can find the VIN on the dashboard on the driver's side, on the title document, or on the registration card. Without the correct VIN, the DMV cannot match the bill of sale to the vehicle.
You also need the sale price (the amount the buyer paid), the date of the sale, the seller's full name and address, and the buyer's full name and address. Both the seller and buyer must sign the document. Some people add the vehicle's mileage, the condition (for example, "as-is" or "good working condition"), and any warranties or promises made during the sale — these details are not required but can prevent misunderstandings later.
Connecticut does not require the bill of sale to be notarized, though some people choose to have it notarized for extra proof. If you do, a notary public will witness your signatures and stamp the document. This costs a small fee but is optional.
Using the official Connecticut DMV form versus writing your own
The Connecticut DMV does not publish an official bill of sale form on its website. Instead, you can read a form from the DMV's document library, or you can write your own bill of sale as long as it includes all the required information listed above.
If you write your own, keep it straightforward and clear. Write it in plain language, include all the details, and make sure both parties sign and date it. You do not need fancy language or legal terms — the DMV only cares that the information is complete and both signatures are present. Many people use a template from a legal website or a form they find online, then fill in the blanks with the specific details of their sale.
Whether you use a form or write your own, make at least two copies before anyone signs — one for the seller, one for the buyer. The buyer will need their copy when they go to the DMV to transfer the title.
How to complete the bill of sale correctly
Fill in all blanks with the correct information. Use the VIN from the title or registration, not from memory. Write out the full names and addresses of both the seller and buyer — do not use nicknames or abbreviations. Write the sale price as a number (for example, $8,500), and write out the date in a way that cannot be confused (for example, January 15, 2024, not 1/15/24).
Both the seller and buyer must sign the bill of sale in person, or you can sign it separately if you both agree. Some people sign it at the time of the sale, in front of each other. Others sign it at different times — the seller signs first, then gives it to the buyer, who signs it later. Either way works, as long as both signatures are on the final copy the buyer takes to the DMV.
Do not leave any blanks. If a field does not explore (for example, if there is a line for "warranty" and you are selling the car as-is), write "N/A" or "none" so it is clear you did not just forget to fill it in.
What happens after you sign the bill of sale
The buyer takes their copy of the bill of sale to the Connecticut DMV along with the vehicle's title, proof of insurance, and a completed registration process. The DMV uses the bill of sale to confirm the sale and transfer the title into the buyer's name. This usually takes a few weeks.
As the seller, keep your copy of the bill of sale for your records. If there is ever a question about when you sold the vehicle or what condition it was in, you have proof. Some people also keep a photo of the bill of sale or scan it and store it digitally.
Once the buyer registers the vehicle, you are no longer the registered owner. Your liability ends. If the vehicle is in an accident or gets a parking ticket after the sale, it is the new owner's responsibility, not yours — as long as you have the signed bill of sale showing you sold it.
Selling a vehicle without a bill of sale and what it means
If you sell a vehicle without a bill of sale, the DMV cannot transfer the title because they have no proof the sale happened. The vehicle stays registered in your name. If the buyer gets into an accident, you could be held liable. If the buyer does not pay a parking ticket or toll, the bill goes to you. If the vehicle is used in a crime, you are the registered owner on file.
The buyer also cannot legally register the vehicle or drive it without a title in their name. They may drive it temporarily, but they cannot sell it to someone else, trade it in, or get a loan against it. This is why both the seller and buyer have a reason to complete a bill of sale — it protects both of you.
If you have already sold a vehicle and did not do a bill of sale, you can still protect yourself. Contact the DMV and ask how to file a notice of sale. Some states allow this after the fact, though Connecticut's process may vary. Call the DMV directly to find out what options you have.
Frequently Asked Questions
Can I sell a car to someone out of state without a bill of sale?
Connecticut does not require a bill of sale by state law, but the buyer's state will. When the buyer registers the vehicle in their state, that state's DMV will ask for proof of the sale. A bill of sale signed by both of you is the standard proof. Without it, the buyer cannot complete the registration in their state.
What if the buyer and I disagree on the sale price later?
The bill of sale shows what price was agreed to at the time of the sale. If you both signed it with that price, that is the legal record of the transaction. This is why it is important to write down the actual price you agreed on, not a lower amount to avoid taxes or a higher amount for any other reason. The bill of sale protects both of you by documenting what actually happened.
Do I need a bill of sale if I am selling a car to a family member?
Yes. Even if you are selling to a spouse, child, or parent, the DMV still needs a bill of sale to transfer the title. The relationship does not change the requirement. A bill of sale also protects family members by making clear that the vehicle was sold, not given as a gift, which can affect insurance and registration.
What if I lost the vehicle's title — can I still sell it?
You will need to get a replacement title from the Connecticut DMV before you can sell the vehicle. The buyer cannot register it without a title. Contact the DMV to request a duplicate title, which usually takes a few weeks. Once you have it, you can complete the bill of sale and transfer it normally.
Is a bill of sale the same as a title?
No. A title is the official government document that proves ownership. A bill of sale is a record of the sale itself. You need both: the bill of sale shows the sale happened, and the title is what gets transferred to the new owner's name at the DMV. The bill of sale is the first step; the title transfer is the second.