How to Fill Out a California Car Bill of Sale
A California car bill of sale is a legal document that records the sale price, vehicle details, and buyer/seller identities. Correctly filling it out protects both parties and satisfies the California DMV's title transfer requirements.
Follow this checklist to complete the form correctly in California.
How to fill out a California car bill of sale
Total time: 5–10 minutes
You will need:
- Signed vehicle title
- Government-issued ID for both parties
- Vehicle Identification Number (VIN)
Enter seller and buyer names
Write the full legal names and current addresses of both the seller and buyer exactly as they appear on their government-issued IDs. Errors here can delay the California DMV title transfer.
Add vehicle details
Record the car's year, make, model, and color. Double-check the Vehicle Identification Number (VIN) from the dashboard or door jamb.
Record the sale price and date
Write the agreed sale price in both numerals and words to prevent disputes. Enter the exact date the ownership changes hands — this date triggers the California title transfer deadline.
Disclose the odometer reading
Write the exact mileage shown on the odometer at the time of sale. Federal law (49 CFR Part 580) requires this disclosure for most motor vehicles under 20 years old — omitting it can void the sale.
Both parties sign the bill of sale
Seller and buyer both sign and date the completed form. Each party keeps a signed original. California may require the signed bill of sale at the DMV to complete the title transfer.
Download and print a copy for each party
Print at least two copies — one for the buyer to submit to the DMV and one for the seller to keep as proof the vehicle was sold. Store your copy for at least three years.
3 Mistakes That Can Void Your Bill of Sale
- ❌ Incorrect VIN — Even a single digit error causes the DMV to reject the title transfer. Copy the VIN directly from the dashboard or door jamb sticker, never from memory.
- ❌ Mismatched names — The buyer and seller names must exactly match their government-issued IDs. Abbreviations or nicknames can delay or invalidate the transfer.
- ❌ Missing odometer disclosure — Federal law (49 CFR Part 580) requires the odometer reading for most vehicles under 20 years old. Omitting it can expose the seller to federal penalties.
California Car transfer fees and requirements
In California, the title transfer fee is $23 and registration costs $46 base fee plus additional fees. Car sales are subject to 7.25% base state rate; total can reach 10.25% with local taxes. California does not require notarization for private-party car transfers. Emission testing is required in California — verify the car passes before completing the sale.
- Smog certification required for vehicles 4+ model years old
- REG 262 form required for title transfer
- Use tax due within 30 days if purchased from a private party
- Smog transfer fee of $8 applies
Official California bill of sale form
The official California bill of sale form is REG 135 (Bill of Sale). BillOfSaleNow generates a document that meets all California requirements and can be used in place of the official form.
California sales tax on car purchases
California has a 7.25% state sales tax rate. 7.25% base; county/city adds 0.25–3.25% (total up to 10.75%). Private-party car sales in California are subject to sales tax. Use tax applies to private party purchases at the same rate. The title transfer fee is $23.
Car market data and safety information
The most common car makes in private-party sales are Toyota, Honda, Ford, Chevrolet, Nissan. Average private-party car prices range from $5,000–$25,000. The average NCAP safety rating for recent car models is 4.2 out of 5 stars. Cars average 3.1 NHTSA recalls per model across categories including Airbags (Takata), Power Train, Fuel System.
Safety checkpoints for buying a used car
Before completing a car bill of sale in California, verify these safety items:
- Verify airbag recall status (Takata recall affected 67M+ vehicles)
- Check tire age — tires over 6 years old degrade regardless of tread depth
- Confirm brake pad thickness and rotor condition
- Test all seatbelts for proper retraction and latching
- Verify ABS warning light cycles off after ignition self-test
- Confirm child-seat LATCH anchor accessibility and integrity
- Test headlight aim and high-beam function on both low and high settings
- Inspect windshield for cracks in the driver sight line that could fail state inspection
Car insurance and depreciation in California
Liability insurance required in 49 states (New Hampshire is the exception). Average annual premium: $1,600–$2,200. Cars lose approximately 20% of value in the first year and 60% over five years. Japanese brands retain value best. Peak season for private car sales is spring (march–may) when tax refunds boost demand, with an average of 21 days on market.
Car registration and titling
Cars are classified as "Passenger vehicle" for registration purposes. Standard passenger cars weigh 2,500–4,500 lbs; no special weight-class registration required. Federal odometer disclosure is required for cars under 20 years old.
Odometer disclosure for car sales
Federal law (49 CFR 580) requires an odometer disclosure for passenger cars less than 20 years old at the time of transfer. The seller must certify the reading is accurate or indicate if the odometer has been tampered with or exceeds its mechanical limits.
- Applicable law: 49 CFR Part 580 — Odometer Disclosure Requirements
Required disclosures for car sales in California
When selling a car in California, the following disclosures apply:
- Salvage or rebuilt title status must be disclosed to the buyer before sale.
- Lemon law buyback history must be disclosed in states that track branded titles.
- Emission compliance status may affect registration in states with inspection programs.
California bill of sale statistics
BillOfSaleNow has generated 14,217 bill of sale documents for California transactions, with 382 generated this month alone. The most popular vehicle type is car.
🔍 Run a VIN Check Before You Sign
A VIN history report reveals accident records, odometer rollback, salvage title history, and recall status — before you hand over the money. Takes 60 seconds.
Get VIN Report — Premium Plan ($19 one-time)Generate your document
If you prefer to generate a completed California car bill of sale automatically, you can create one here.
Frequently Asked Questions
Does the California bill of sale need to be notarized?
No. California does not require notarization for a standard vehicle bill of sale. Signatures from both buyer and seller are sufficient.
What happens if I make an error on the bill of sale?
Do not use correction fluid. Cross out the error with a single line, write the correction next to it, and have both parties initial the change. For significant errors, it is better to complete a new form.
Can I complete the bill of sale before seeing the vehicle?
No. Fill out the bill of sale at the time of the sale, after both parties have inspected the vehicle and agreed on the price. The date on the form should match the actual transaction date.
How many copies of the bill of sale do I need?
Print at least two signed copies — one for the buyer to submit to the DMV and one for the seller to keep as proof of sale. The seller's copy protects them from liability for tickets or accidents after the sale date.
Why Documentation Helps Protect Asking Price
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)
California Car bill of sale by city
Informational purposes only. This content is provided for informational purposes only and is not legal advice. Laws vary by state and individual circumstances differ. Consult a licensed attorney for jurisdiction-specific guidance on vehicle transfers, title requirements, or related legal matters.