What a California bill of sale does and when you need one

A bill of sale is a written record that you sold a vehicle and the buyer received it. In California, the bill of sale proves the transfer of ownership happened and protects both you and the buyer if questions come up later about who owned the car on a specific date. The DMV does not require a bill of sale to process a title transfer, but it is the single most important document you can create during a private sale — it is your proof that the transaction occurred.

You need a bill of sale whenever you sell a vehicle to another person, whether the buyer is a friend, family member, or stranger. If you are trading a car to a dealership or selling to a dealership, they will handle the paperwork and you do not need to create one yourself. The bill of sale becomes part of the buyer's records and should be kept by both parties for at least three to five years.

Key Takeaways

  • California does not have an official state bill of sale form, but the DMV accepts any written record that includes the vehicle identification number, sale price, date, and signatures of both buyer and seller.
  • A bill of sale protects you from liability if the buyer gets into an accident or receives a traffic ticket after the sale, because it proves you no longer owned the vehicle.
  • You should complete the bill of sale before you sign over the title, and both parties should keep a copy for their records.
  • The bill of sale is separate from the title transfer form (REG 262) — you need both documents to complete a full ownership change at the DMV.

What information must go on a California bill of sale

California law does not specify an exact form or format for a bill of sale, which means you can write one yourself or use a template. The document must include the vehicle identification number (VIN), the make and model of the car, the sale price, the date of the sale, and the printed names and signatures of both the seller and the buyer. If the buyer is financing the purchase through a bank or credit union, that lender's name should also appear on the document.

You should also include the odometer reading on the bill of sale, even though it is not legally required. This protects the buyer by documenting the mileage at the time of sale and protects you by showing you disclosed the mileage accurately. If the title shows the odometer was not working or the mileage is unknown, note that on the bill of sale as well.

The bill of sale does not need to be notarized in California, though having it notarized adds an extra layer of proof that both parties signed it willingly. If you choose to have it notarized, take it to a notary public (available at most banks, UPS stores, and some DMV offices) and bring a photo ID. The notary will charge a small fee, usually between $5 and $15.

How to create a bill of sale that the DMV will accept

Start with a blank piece of paper or a template you find online — search "California bill of sale template" and you will find many free options. At minimum, type or write the following information clearly: the date of sale, the seller's full name and address, the buyer's full name and address, the vehicle's VIN (found on the title or dashboard), the vehicle's year, make, model, and color, the sale price in dollars, and the odometer reading.

Both the seller and buyer must sign and print their names on the bill of sale. If there are two sellers or two buyers (for example, a married couple), both must sign. The document does not need to be fancy — a handwritten bill of sale on notebook paper is legally valid as long as it contains all the required information and both parties have signed it. However, a typed version is easier to read and less likely to cause problems later.

Make at least three copies: one for the seller, one for the buyer, and one to keep with the title transfer paperwork you will submit to the DMV. If you are using a notary, bring all copies to be notarized at the same time.

Scam alerts: protect yourself when buying or selling

If you are the seller, never hand over the keys or let the buyer take the car before the bill of sale is signed. A buyer who leaves with the car and then refuses to sign is a buyer who can claim they own the vehicle, and you will have no proof of the sale. Complete the bill of sale in person, have both parties sign it, and make copies before any money changes hands.

If you are the buyer, do not pay the full purchase price until you have a signed bill of sale in your hands. A seller who takes your money and then disappears or claims the sale never happened leaves you with no proof you own the car. Meet in a safe public location (a police station parking lot is ideal), bring a witness if possible, and do not hand over payment until the bill of sale is complete and signed.

Watch for sellers who pressure you to list a lower price on the bill of sale than what you actually paid. This is tax evasion and puts you at legal risk. The bill of sale price should match what you actually paid. Similarly, if a seller tells you the bill of sale is "not necessary" or "just between us," that is a red flag — a legitimate seller will want a bill of sale as much as you do, because it protects them too.

How the bill of sale connects to your DMV title transfer

The bill of sale and the title transfer are two separate steps. The bill of sale proves the sale happened. The title transfer (done using form REG 262 or REG 262A, depending on whether there is a lien on the vehicle) officially changes the owner's name in the DMV's records. You need both documents to complete the transfer.

As the seller, you will sign the back of the title and provide it to the buyer. The buyer then takes both the signed title and the bill of sale to the DMV to register the vehicle in their name. You should keep a copy of the bill of sale for your records, even after you have signed over the title. If the buyer gets into an accident or receives a parking ticket after the sale, the bill of sale proves you no longer owned the vehicle on that date.

The buyer should submit the title transfer to the DMV within 10 days of the sale. If the buyer does not transfer the title promptly and the car is involved in an accident or crime, you could be contacted as the registered owner. Having a dated bill of sale protects you by showing the ownership transfer happened before the incident.

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

If you are the seller and you have already signed over the title but did not create a bill of sale, you can still create one after the fact. Write the bill of sale with the correct date of the original sale, have the buyer sign it if possible, and keep it for your records. This is not ideal — a bill of sale created months after the sale is weaker evidence than one created on the day of the sale — but it is better than having nothing.

If you are the buyer and the seller refuses to create a bill of sale, you can still transfer the title using just the signed title document. However, you will have no written proof of the sale price, the date, or the condition of the vehicle. This makes it harder to prove you own the car if the seller later claims they did not actually sell it to you. If the seller refuses to create a bill of sale, that is a strong signal to walk away from the deal.

If you have lost a bill of sale you created, and you still have the signed title, you have proof of the transfer through the DMV's records. The DMV can provide a copy of the title transfer history if you request it, though this takes longer than having the original bill of sale on hand.

Frequently Asked Questions

Can I use a bill of sale instead of signing the title?

No. The bill of sale and the title are two different documents that serve different purposes. The bill of sale proves the sale happened between two people. The title is the official ownership document that the DMV recognizes. You must sign the back of the title and give it to the buyer so they can register the vehicle in their name at the DMV. The bill of sale supports that process but does not replace it.

Do I need to register the bill of sale with the DMV?

No. The bill of sale is a private document between the buyer and seller. You do not submit it to the DMV. The buyer submits the signed title (form REG 262 or REG 262A) to the DMV to officially change the registration. Keep your copy of the bill of sale in your personal records for three to five years.

What if the buyer and I disagree on the sale price after the sale?

The bill of sale is the written record of what you both agreed to. If you signed a bill of sale stating the price was $5,000, that is the agreed price. If the buyer later claims they only agreed to pay $4,500, the bill of sale is your proof of the actual agreement. This is why it is critical to get the correct price in writing before the sale is final.

Is a handwritten bill of sale valid in California?

Yes. A handwritten bill of sale is legally valid as long as it includes all required information (VIN, sale price, date, buyer and seller names, and both signatures) and both parties have signed it. A typed version is clearer and less likely to cause confusion, but handwritten is acceptable.

What if I sold the car years ago and now the buyer is being contacted about an old ticket?

This is why you should keep your bill of sale for three to five years after the sale. If you are contacted about a ticket or accident involving a car you sold, provide a copy of the bill of sale showing the date of the sale. This proves you no longer owned the vehicle when the incident occurred. If you no longer have the bill of sale, contact the DMV — they can provide a record of when the title was transferred to the new owner.