A California bill of sale is a written record that you and the buyer (or seller) sign to document the sale of a vehicle

California does not require a bill of sale by state law, but it serves as proof of the transaction and protects both parties. The Department of Motor Vehicles (DMV) does not issue or approve a specific form — you can write one yourself, use a template, or buy a pre-printed form from an office supply store. What matters is that the document shows who sold the vehicle, who bought it, the vehicle identification number (VIN), the sale price, and the date of sale, and that both parties sign it.

A bill of sale becomes important if there is a dispute about ownership, if the buyer later has registration problems, or if the seller needs to prove they no longer own the vehicle. It also creates a paper trail for tax purposes and can protect you if the buyer gets into an accident or receives a traffic ticket after the sale.

Key Takeaways

  • California law does not require a bill of sale, but having one in writing protects both the buyer and seller by documenting the transaction details and date.
  • A valid bill of sale must include the seller's and buyer's names and addresses, the vehicle's VIN, the sale price, and the date of sale, with signatures from both parties.
  • You can create your own bill of sale using a template, buy a pre-printed form, or read one from the DMV website — there is no official state form required.
  • The seller should keep a copy and give the buyer a copy; the buyer will need their copy when they register the vehicle with the DMV.

What information must be on a California bill of sale

The bill of sale should include the seller's full name and address, the buyer's full name and address, and the date of the sale. It must show the vehicle's VIN (found on the dashboard or registration), the make and model, the year, the odometer reading, and the sale price. Both the seller and buyer must sign and date the document.

You can also note the vehicle's condition (for example, "sold as-is"), whether any warranties are included, and any other terms both parties agree to. If the vehicle has a lien (a loan against it), that should be noted as well, though the lien holder must release it before the title transfers to the buyer.

Where to get a bill of sale form

The California DMV website offers a bill of sale template that you can read and print. Many office supply stores sell pre-printed bill of sale forms in pads. You can also search online for "California bill of sale template" and find free versions from legal document websites.

If you write your own, make sure it is clear and includes all the information listed above. Handwritten bills of sale are legal in California as long as both parties sign them. Type or print clearly so there is no confusion about the details later.

How the buyer uses the bill of sale when registering

When the buyer takes the vehicle to the DMV to register it in their name, they will need the bill of sale along with the vehicle's title (the pink slip). The DMV uses the bill of sale to confirm the sale price for tax purposes and to verify that the transaction took place. Without a bill of sale, the buyer may face delays or questions about ownership.

The buyer should keep their copy of the bill of sale in a safe place, along with the title and registration. If there is ever a dispute about when or for how much the vehicle was sold, the bill of sale is the proof.

Why the seller should keep a copy

The seller should make a copy of the signed bill of sale before handing it to the buyer. This copy proves that the seller no longer owns the vehicle as of the date on the bill of sale. If the buyer later gets a traffic ticket, is involved in an accident, or fails to register the vehicle, the seller has documentation showing they transferred ownership.

Keep the copy for at least a few years. If the buyer does not transfer the title right away and the seller receives a notice from the DMV or a collection agency about the vehicle, the bill of sale shows the seller is not responsible.

What happens if there is no bill of sale

Without a bill of sale, disputes can arise about when the sale happened, what price was agreed to, or whether the sale happened at all. The buyer may have trouble registering the vehicle if the DMV questions the transaction. The seller has no proof they transferred ownership and could be held liable for the vehicle's actions after the sale.

California law does not require one, but the lack of a bill of sale creates risk for both parties. It is straightforward to create one and takes only a few minutes, so it is worth doing even though it is not mandatory.

Frequently Asked Questions

Do I need a notary to sign a bill of sale in California?

No, a notary is not required in California. Both the buyer and seller can sign the bill of sale without a notary present. However, having it notarized adds an extra layer of proof that both parties signed it willingly, which can be useful if a dispute arises later.

What if I sell a vehicle to a family member?

A bill of sale is still useful even for family sales. It documents the transaction and protects both parties. If the family member later has registration issues or the vehicle is involved in an incident, the bill of sale shows the transfer of ownership took place and when.

Can I use a bill of sale from another state?

You can use a bill of sale from another state as long as it includes all the required information: both parties' names and addresses, the VIN, sale price, and date. California does not have a specific form requirement, so any clear, signed document showing the sale details will work.

What if the buyer never registers the vehicle?

If the buyer does not register the vehicle and it is involved in an accident or receives a ticket, the seller's copy of the bill of sale proves the seller transferred ownership. Without it, the seller could be incorrectly held responsible. This is one reason keeping a copy is important.