California requires registration within 10 days of purchase, and you handle it through the Department of Motor Vehicles (DMV), not your dealer

When you buy a new car in California, the dealer typically handles the paperwork to send to the DMV on your behalf, but registration is your legal responsibility. You must have the vehicle registered within 10 days of taking ownership — this is a state law, not a suggestion. The DMV will assign you a license plate and registration card (also called the registration certificate or "reg card"). You can register online, by mail, or in person at a DMV office, and the method you choose affects how long the process takes and what documents you need to bring.

Most new car buyers do not need to visit the DMV at all if they register online or by mail. However, you will need to know what documents the DMV requires, what the registration fee is based on, and whether you should wait for the dealer to submit paperwork first or start the process yourself. The timing matters because driving an unregistered vehicle is illegal, even if you own it outright.

Key Takeaways

  • California law requires you to register your new car within 10 days of purchase, regardless of whether the dealer has submitted paperwork to the DMV.
  • You will need the vehicle's title (or a temporary ownership document from the dealer), proof of California residency, and proof of insurance before you can register.
  • Online registration through the DMV website is the fastest method if you have all documents ready, and you can often complete it the same day you buy the car.
  • The registration fee depends on the vehicle's value, weight, and type; new cars typically pay a higher initial fee than used vehicles.
  • If the dealer is handling registration for you, ask them for a timeline and confirmation number so you can verify the DMV received your paperwork.

What documents you need to register a new car

The DMV requires a specific set of documents before it will issue registration. For a new car, you need the original title or a temporary ownership document from the dealer (sometimes called a "temporary registration" or "dealer temporary"), proof of California residency (a utility bill, lease, or mortgage statement dated within the last 60 days works), and proof of insurance (your insurance card or a declaration page from your insurance company showing your name, the vehicle identification number, and the policy dates).

You also need to provide your California driver's license or ID card. If you are registering the vehicle in a business name rather than your personal name, bring the business license or articles of incorporation. If someone other than the owner is registering the car on their behalf, you will need a signed power of attorney form. The dealer should give you a temporary registration document that allows you to drive the car legally while the permanent registration is being processed — this is usually valid for 30 to 90 days, depending on whether you registered online or by mail.

How to register online through the DMV website

The California DMV website (dmv.ca.gov) has an online registration system that is usually the fastest option. Go to the "Register a Vehicle" section and select "New Vehicle Registration." You will need to enter your vehicle identification number (VIN), which is on the title document or the dealer's paperwork. The system will pull up the vehicle's information and ask you to confirm the details, then guide you through entering your personal information, residency proof, and insurance details.

The online system will calculate your registration fee based on the vehicle's value and weight, and you can pay by credit card or debit card. Once you submit, the DMV will issue a temporary registration number that you can print or save to your phone — this allows you to drive legally while waiting for your permanent registration card and plates to arrive by mail. The permanent registration typically arrives within two to three weeks. If the dealer has not yet submitted the title to the DMV, you may need to wait until they do before you can complete online registration, so confirm with the dealer first.

Registering by mail or at a DMV office

If you prefer to register by mail, you can read the process for Title or Registration (Form REG 343) from the DMV website, fill it out, and mail it along with your documents and payment to the DMV address listed on the form. Mail registration takes longer — usually four to six weeks — because the DMV processes applications in the order they are received. You will still need to provide proof of insurance and residency, and you should keep a copy of everything you send for your records.

Registering in person at a DMV office is an option if you want to hand over your documents directly and ask questions, but it requires an appointment in most California counties. You can book an appointment on the DMV website by entering your zip code and selecting "New Vehicle Registration." Bring all original documents (title, proof of residency, proof of insurance, and your ID) to the appointment. The DMV will process your registration on the spot and issue you a temporary registration number, with permanent plates arriving by mail within two to three weeks.

Registration fees and what affects the cost

California registration fees for new cars are based on the vehicle's value, not a flat rate. The DMV uses a formula that includes the purchase price or manufacturer's suggested retail price (MSRP), the vehicle's weight, and whether it is a standard passenger vehicle or a specialty vehicle like an electric car or motorcycle. For a typical new sedan, the initial registration fee ranges widely depending on the vehicle's value — the DMV website has a fee calculator where you can enter your VIN to see the exact amount.

New vehicles also pay a one-time Vehicle License Fee (also called the "registration tax"), which is 1.15% of the vehicle's value. This fee is separate from the standard registration fee and applies only to new cars registered for the first time in California. If you are trading in a vehicle, the trade-in value does not reduce the fee calculation — the fee is based on the new car's value alone. You may also owe county or local fees depending on where you live. The online fee calculator on dmv.ca.gov will show you the total amount due before you submit your registration.

What to do if the dealer is handling registration

Many dealers offer to handle registration as part of the purchase process. If your dealer is doing this, ask them for a confirmation number or receipt showing that they have submitted your paperwork to the DMV, and ask when you should expect to receive your temporary registration. Some dealers submit paperwork when ready; others wait until the title is ready, which can take a few days. You are still legally responsible for registering within 10 days, so if the dealer has not submitted anything by day 8, contact them and ask for proof.

If you receive a temporary registration from the dealer, check that it has an expiration date and that your name and vehicle information are correct. Keep this document in your car while driving. If the dealer does not provide a temporary registration or if you are unsure whether they have submitted your paperwork, register online or by mail yourself — you can do this even if the dealer is also processing registration, and the DMV will sort out duplicate submissions. Do not assume the dealer has completed registration just because they said they would; verify it by checking your DMV account online or calling the DMV directly.

Common delays and how to avoid them

The most common reason registration is delayed is that the title has not yet been transferred from the previous owner (the dealer or manufacturer) to you. This can take several days after purchase, especially if the dealer is waiting for the manufacturer's paperwork. Ask the dealer when they expect the title to be ready and whether you should wait to register or go ahead online. If you register online before the title is transferred, the DMV will hold your process and process it once the title arrives — you will still get a temporary registration number to drive with.

Another frequent delay is missing or incorrect insurance information. Make sure your insurance policy is active and that the vehicle identification number on your insurance card matches the VIN on your car's title. If you just bought the car and added it to an existing policy, confirm with your insurance company that the policy is in effect before you submit your registration. Mismatched names (for example, if your insurance is under a nickname but your ID uses your full legal name) can also slow things down — use the exact name that appears on your driver's license when you register.

Frequently Asked Questions

Can I drive my new car home from the dealer before I register it?

No. California law requires registration within 10 days of purchase, and you cannot legally drive an unregistered vehicle, even if you own it. However, the dealer should provide a temporary registration document that allows you to drive home. If they do not, register online when ready before you leave the lot, and print or save the temporary registration number to your phone.

What if I buy a car out of state and bring it to California?

You must register it in California within 10 days of establishing residency in the state. You will need to provide a title from the state where you bought it, proof of California residency, and proof of insurance. The DMV will issue a California title and registration. If the out-of-state title is not yet in your name, you may need to complete that transfer first before registering in California.

How do I check if my registration has been processed?

Create an account on the DMV website (dmv.ca.gov) and log in to check the status of your registration. You can also call the DMV at 1-800-777-0133, but wait times are often long. If you registered online, you should receive an email confirmation with a reference number — keep this for your records.

What happens if I do not register within 10 days?

Driving an unregistered vehicle is a violation of California Vehicle Code and can result in a fine. Law enforcement can also impound the vehicle. If you miss the important date, register as soon as possible and be prepared to explain the delay if you are stopped.

Do I need to register my car again if I move to a different California county?

No. Your registration is valid statewide regardless of which county you live in. You do need to update your address with the DMV, which you can do online through your DMV account or by mail using Form DL 43.