California guide
California Title Transfer vs Bill of Sale
A bill of sale and a title transfer are two different documents that do two different things. Confusing them is one of the most common mistakes in private vehicle sales.
What a bill of sale does
- Documents the private agreement between the buyer and the seller.
- Captures the vehicle, sale price, odometer, as-is terms and signatures of both parties.
- Acts as the buyer's proof of purchase and the seller's proof of sale.
What a title transfer does
- Updates the California DMV's official ownership records.
- Legally moves the vehicle's registered owner from the seller to the buyer.
- Triggers applicable taxes, fees and the issuance of new registration in the buyer's name.
Who is responsible and by when
In California, the buyer typically has 10 days from the date of sale to complete the title transfer at the DMV and pay the required fees. Separately, the seller must notify the DMV within 5 days by submitting a Notice of Transfer and Release of Liability.
A bill of sale does not replace title transfer. You usually need both — the bill of sale for the private record between the parties, and the title transfer to make the change of ownership official with the California DMV.