Private-Party Vehicle Title Transfer Requirements in California

At a glance

Requirements one by one

The title and DMV filing work together

Vehicle Code § 5600(a)(1) says an attempted transfer is not effective until the seller properly endorses and delivers the title and the buyer sends or delivers it to DMV with the transfer fee and use tax, or the seller follows the statutory document-submission alternative. A bill of sale and delivery of the car are not substitutes for that title-and-filing path.

Vehicle Code § 5750 and § 5751 require the transferor and transferee to sign the title and require the transferee's address. DMV adds the practical co-owner rule: every owner joined by "and," a slash, or JTRS signs; one owner may release when the names are joined by "or" or "and/or." A recorded lienholder must release its interest on the title or through an accepted release. When a loan is paid off, § 5753(c) gives the legal owner 15 business days after full payment and a signed release authorization to release its interest and deliver the title; missing that window costs the legal owner $25 per day, up to $2,500 (§ 5753(e)). Vehicle Code § 5753(a) separately makes it unlawful to fail to endorse, date, and deliver the title to a transferee entitled to the transfer.

Ordinary current-title signatures are not notarized

California does not require a notary or witness for the ordinary transfer of a current California title. The notarization rule in § 5752 belongs to the different lost, stolen, damaged, or mutilated-title route: when REG 227 replaces the title, an applicable lienholder signature is notarized.

A bill of sale is likewise not the ordinary transfer instrument. DMV requires one when the private seller is not the person named on the title, signed by both that seller and the titled owner. REG 135 is available as a transaction record, but the buyer still needs the assigned title and DMV filing.

Odometer and smog documents can block the application

Vehicle Code § 5600(b) allows DMV to require a secure odometer form. DMV's current specialized rule applies a 20-model-year disclosure period to post-2021 transfers and requires original seller and buyer signatures; a power of attorney cannot sign the mileage disclosure. Use the title's complying odometer section or secure REG 262 as DMV directs.

For smog, the seller generally gives the buyer a valid certification. DMV says a car under four model years old uses a smog transfer fee instead of a new inspection. Vehicle Code § 5751.5(a)-(b) also addresses the narrower case where a still-valid prior certification makes another test unnecessary and requires a signed emissions-system statement.

Seller and buyer have different clocks

The seller's deadline is five calendar days under § 5900(a). File the Notice of Transfer and Release of Liability online or on REG 138 and keep the confirmation. Section 5602 and DMV's NRL page describe the liability protection, but DMV is explicit that the NRL does not transfer ownership or remove the seller's name from the record.

The buyer's deadline is 10 days after receiving the properly endorsed title. Section 5902 requires the buyer to send the title and transfer fee to DMV and apply for the transfer. The application must also clear the lien-release, identity, price/date, tax, odometer, and smog items that apply.

Insurance is an operating rule, not a substitute for transfer

Proof of insurance is not listed as the ordinary title document in DMV's basic transfer checklist. But § 16020(a) separately requires every driver and owner to be able to establish financial responsibility and carry evidence in the vehicle. A signed title does not authorize driving an unregistered or uninsured car.

Late filing carries graduated penalties

Once the vehicle is transferred, § 9553(b) gives the buyer 20 days to pay the registration fees that come due "without payment of penalties." After that, § 9554(b) adds a registration-fee penalty that climbs with delay — "Ten dollars ($10) for a delinquency period of 10 days or less," rising to "One hundred dollars ($100)" after two years — on top of a percentage penalty on the vehicle license fee (§ 9554(c)); continued delinquency can lead to impoundment (§ 9553(e)). Because § 5600 makes a transfer ineffective until the title-and-filing path is complete, a missing signature, lien release, smog certificate, tax, or fee can also stop the application.

What trips people up

• Treating the NRL as the transfer. It can protect the seller from later parking, abandonment, operation, and related exposure, but only the buyer's completed transfer changes the vehicle record.
• Using the older 10-year odometer shorthand. DMV's specialized current disclosure page uses a 20-model-year rule for post-2021 transfers. Check its current-year table and use original signatures on the title or REG 262.
• Buying from someone not named on the title. DMV requires a bill of sale signed by both the seller and the titled owner. A one-signature receipt does not repair the chain of ownership.
• Leaving smog until after payment. Unless an exemption or still-valid certificate applies, the seller must provide the smog certification needed for transfer.

Common questions

Does a California bill of sale transfer the car by itself? No. Section 5600 ties an effective transfer to the endorsed title and DMV filing. The bill of sale is supporting evidence and is specifically required when the seller is not the owner named on the title.

Do the seller's and buyer's title signatures need notarization? Not for the ordinary current-title transaction. The notary issue arises in the lost or damaged-title route when an applicable lienholder signs REG 227.

Who files first? Do both promptly. The seller files the NRL within five calendar days (§ 5900); the buyer applies with the endorsed title within 10 days (§ 5902).

Who is responsible for the smog certificate? DMV says the seller gives the buyer a valid certification unless an exemption applies. For a vehicle under four model years old, the buyer pays the smog transfer fee instead of obtaining a new inspection.

Statutes and sources

• Cal. Veh. Code § 5600 — when a vehicle-title transfer becomes effective and DMV's secured odometer-form authority. https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?sectionNum=5600.&lawCode=VEH (accessed 2026-07-23)
• Cal. Veh. Code §§ 5750-5753 — title signatures and delivery, the lost-title lienholder-notary rule, emissions statement, the paid-off-lien 15-business-day release deadline and $25/day penalty (§ 5753(c),(e)), and unlawful failure to endorse/date/deliver. https://leginfo.legislature.ca.gov/faces/codes_displayText.xhtml?lawCode=VEH&division=3.&chapter=2.&article=2. and https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?sectionNum=5753.&lawCode=VEH (accessed 2026-07-23)
• Cal. Veh. Code §§ 5900 and 5902 — seller's five-day notice and buyer's 10-day title application. https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?sectionNum=5900.&lawCode=VEH and https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?sectionNum=5902.&lawCode=VEH (accessed 2026-07-23)
• Cal. Veh. Code § 5602 — seller liability after a bona fide sale, possession delivery, and proper title endorsement or notice. https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?sectionNum=5602.&lawCode=VEH (accessed 2026-07-23)
• Cal. Veh. Code § 16020 — financial-responsibility evidence for drivers and owners. https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?sectionNum=16020.&lawCode=VEH (accessed 2026-07-23)
• Cal. Veh. Code §§ 9553 and 9554 — 20-day fee window on transfer, graduated late-payment penalties, and impoundment for delinquency. https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?sectionNum=9553.&lawCode=VEH and https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?sectionNum=9554.&lawCode=VEH (accessed 2026-07-23)
• California DMV — Basic Transfer Requirements — endorsed title, co-owner and lienholder releases, buyer information, odometer, purchase price/date, smog, fees, and use tax. https://www.dmv.ca.gov/portal/handbook/vehicle-industry-registration-procedures-manual-2/transfers/basic-transfer-requirements/ (accessed 2026-07-23)
• California DMV — Private-party purchase instructions — 10-day/5-day clocks, the chain-of-ownership bill of sale, smog, fees, and use tax. https://www.dmv.ca.gov/portal/vehicle-registration/new-registration/registering-a-vehicle-purchased-from-a-private-party/ (accessed 2026-07-23)
• California DMV — Odometer Disclosure Requirements — original signatures, no POA, secure documents, and current 20-model-year table. https://www.dmv.ca.gov/portal/handbook/vehicle-industry-registration-procedures-manual-2/odometer-mileage-reporting/disclosure-requirements/ (accessed 2026-07-23)
• California DMV — Notice of Transfer and Release of Liability — required information, confirmation, liability effect, and warning that an NRL is not the ownership transfer. https://www.dmv.ca.gov/portal/vehicle-registration/titles/title-transfers-and-changes/notice-of-transfer-and-release-of-liability-nrl/ (accessed 2026-07-23)
• California DMV — Smog Inspections — seller certification and transfer exemptions. https://www.dmv.ca.gov/portal/vehicle-registration/smog-inspections/ (accessed 2026-07-23)