BillOfSaleNow

Paperwork to Sell a Car in California

California private car sale checklist: Bill of sale recommended. Smog certificate required. Notice of Sale required within 5 days.

BILL OF SALE
Recommended
SMOG CERT
Required
NOTICE OF SALE
Required (5 days)
LIEN RELEASE
Must be clean title

Seller Documents — California

✓
CA Certificate of Title ("pink slip") — both parties sign the Assignment of Title section on the back
✓
Valid smog certificate (passed within 90 days of sale — seller typically pays)
✓
Notice of Transfer and Release of Liability — seller submits online at dmv.ca.gov within 5 days
✓
Odometer disclosure — completed in the title assignment section
✓
Bill of sale (optional but strongly recommended)

California requires completing the back of the title carefully — every field must be filled in correctly. Whiteout is not permitted on any title document.

How to Complete the California Title

The CA title ("pink slip") has an Assignment of Title section on the back. The seller must print the buyer's name exactly as it appears on their ID, enter the odometer reading, sign, and print their name. Plates stay with the vehicle in CA — do not remove them.

Notice of Sale in California

Required: Notice of Transfer and Release of Liability (online at dmv.ca.gov or paper REG 138)
File within 5 days of the sale.

This is the most important seller protection document in California. Submit immediately online at dmv.ca.gov (free, takes 3 minutes). Without it, the seller remains liable for parking tickets, tolls, and civil liability incurred by the new owner.

Documents the Buyer Needs in California

→
Signed CA title (provided by seller)
→
Valid smog certificate (provided by seller)
→
Application for Title or Registration (REG 343)
→
Payment for use tax (based on purchase price), registration fees, and title fees
→
Valid California driver's license

The buyer must transfer the title within 10 days. Late transfer incurs a $15 penalty, increasing after 20 days. The buyer visits any CA DMV office with these documents.

Copies to Keep (Seller)

✓
Copy of the signed title showing the sale date and buyer name
✓
Copy of the smog certificate provided to the buyer
✓
Confirmation of the online Notice of Transfer submission
✓
Bill of sale (if used)

Keep these records for at least 3 years — they protect against post-sale parking tickets, toll disputes, and liability claims.

Frequently Asked Questions

What paperwork do I need to sell my car in California?
To sell a car in California you need: CA Certificate of Title ("pink slip") — both parties sign the Assignment of Title section on the back; Valid smog certificate (passed within 90 days of sale — seller typically pays); Notice of Transfer and Release of Liability — seller submits online at dmv.ca.gov within 5 days. California requires completing the back of the title carefully — every field must be filled in correctly. Whiteout is not permitted on any title document.
Is a bill of sale required to sell a car in California?
No. California does not legally require a bill of sale, but it is strongly recommended. A bill of sale is not legally required in California for private-party vehicle sales — the signed title assignment is sufficient. However, a bill of sale is valuable documentation of the purchase price, which CA DMV uses to assess use tax.
Do I need to file a Notice of Sale when selling a car in California?
Yes. California requires filing Notice of Transfer and Release of Liability (online at dmv.ca.gov or paper REG 138) within 5 days of the sale. This is the most important seller protection document in California. Submit immediately online at dmv.ca.gov (free, takes 3 minutes). Without it, the seller remains liable for parking tickets, tolls, and civil liability incurred by the new owner.
Do I need a smog certificate to sell a car privately in California?
Yes. California requires a valid smog certificate for most private-party sales. A current smog certificate (passed within the past 90 days) is required for most CA private-party sales. Exempt: vehicles 4 model years old or newer, electric vehicles, diesel vehicles over 14,000 lbs GVWR, and motorcycles. The seller typically provides the smog certificate.
California Key Facts

California plates stay with the VEHICLE, not the seller — this is the opposite of most other states. The mandatory 5-day Notice of Transfer online is California's most critical seller protection. Do it immediately.

Paperwork to Sell a Car — Other States

AlabamaAlaskaArizonaArkansasColoradoConnecticutDelawareFloridaGeorgiaHawaiiIdahoIllinois

Trusted by private vehicle sellers nationwide

45% faster sale

Vehicles whose listings include a history report spend ~45% less time on site before selling, and report-viewers are 5x more likely to become a lead.

Source: Experian / AutoCheck

$4,000 avg loss

NHTSA estimates 450,000+ vehicles per year are sold with rolled-back odometers — the average victim loses about $4,000 in downstream repair costs.

Source: NHTSA

17.5M private sales/yr

About 17.5 million private-party vehicle transactions happen in the U.S. each year — roughly 47% of the used market.

Source: Cox Automotive 2024

1 in 3 buyers

Roughly 1 in 3 used-car buyers say they suspect private sellers are hiding mechanical problems — documentation closes that trust gap.

Source: JW Surety Bonds (n=3,000)

$60–$85 mobile notary

Mobile notary visit minimums run $60–$85 — higher on weekends, plus per-mile travel fees. State-formatted documents skip the trip.

Source: Thumbtack / NNA