Documents and information you'll need before you go
Car registration requires different documents depending on whether you're registering a new car, a used car you just bought, or renewing an existing registration. The core documents are almost always the same: proof of ownership (the title or bill of sale), proof of identity, and proof of insurance. Your state's DMV or equivalent agency will also need the vehicle identification number (VIN), which you'll find on the driver's side dashboard or on your title.
If you're registering a used car you purchased, bring the signed title from the seller and a bill of sale showing the purchase price. If the title is in someone else's name, you'll need a signed release or power of attorney from that person. For a new car, the dealer typically handles the paperwork and gives you a temporary registration; you then register it permanently with the state. Some states require an emissions test or safety inspection before registration, particularly for used vehicles.
Proof of insurance is non-negotiable in every state. You'll need the policy number and declaration page from your insurer showing your vehicle's VIN and coverage limits. Bring a government-issued ID—a driver's license, passport, or state ID card. If you're registering the car under a business name or trust, bring documentation of that entity and the person authorized to sign on its behalf.
Key Takeaways
- You must bring the title or bill of sale, proof of insurance, a government ID, and the vehicle's VIN to register a car.
- Used cars typically require a signed title from the seller and proof that you own it; new cars come with temporary registration from the dealer.
- Some states require an emissions test or safety inspection before you can complete registration, and these must be done at an approved facility.
- Registration fees vary by state and sometimes by vehicle weight or age; check your state DMV website for the exact amount before you go.
- You can register by mail, online, or in person at your local DMV, and the method available depends on your state and whether it's a new or renewal registration.
Where to register and how long it takes
You register a car at your state's Department of Motor Vehicles (DMV), Secretary of State office, or equivalent agency—the name varies by state. Many states now allow online registration for renewals and some new registrations, which takes a few minutes if you have all documents ready. In-person registration at a local DMV office typically takes 30 minutes to two hours depending on how busy the office is; arriving early or using an appointment system (if your state offers one) can cut that time significantly.
Mail-in registration is available in some states for renewals and certain new registrations. You'll send your documents and fee to the address listed on your state's DMV website. Processing time by mail is usually 2 to 4 weeks, so plan ahead if you need the registration quickly. Some states also allow third-party services—like AAA or private registration services—to handle registration on your behalf, though they charge a fee on top of the state's registration cost.
Processing time for in-person or online registration is usually when ready or within a few business days; you'll receive your registration certificate and license plates (or a registration sticker for your existing plates) by mail within 1 to 3 weeks. If you need to drive the car before the permanent registration arrives, ask for a temporary registration document at the DMV office or print one from the state website.
Registration fees and what affects the cost
Registration fees are set by your state and vary widely. Some states charge a flat fee of $50 to $150 per year; others base the fee on the vehicle's age, weight, engine size, or assessed value. A new luxury car might cost $300 to $500 to register in a high-fee state, while a 10-year-old sedan might cost $100. A few states charge significantly more—over $1,000 annually for high-value vehicles—while others charge under $50.
Your state DMV website will show the exact fee for your vehicle once you enter the VIN and vehicle details. Some states also charge separate fees for license plates, title transfers, or emissions testing. If you're registering a vehicle with a lien (meaning the lender still owns it), the lender's name will appear on the registration, but this doesn't change the fee. Military members, disabled veterans, and nonprofit organizations may may have access to for reduced or waived registration fees in some states; check your state's DMV site for these programs.
New car registration versus used car registration
New cars come with temporary registration from the dealer, valid for 30 to 90 days depending on your state. The dealer handles the paperwork with the manufacturer and sends it to your state DMV. You don't need to do anything when ready, but you must complete permanent registration before the temporary registration expires. Bring the dealer's paperwork, your proof of insurance, and your ID to the DMV to finish the process.
Used cars require you to handle more of the paperwork yourself. The seller must sign the title over to you, and you must bring that signed title, a bill of sale, and proof of insurance to the DMV. If the title is held by a lender (the car is financed), the lender's name will be on the title; you'll still register it, but the lender remains the lienholder until the loan is paid off. Some states require a pre-registration inspection or emissions test for used cars before you can register them; this must be completed at an approved facility and the inspection report brought to the DMV.
What happens if the title is missing or in someone else's name
If you bought a used car and the seller can't find the title, you can request a duplicate from your state DMV using the VIN and the seller's name. This usually costs $10 to $30 and takes 1 to 3 weeks. In the meantime, you can't register the car. If the seller refuses to cooperate or the title is lost, you may be able to obtain a bonded title in some states—this requires a surety bond (a small insurance policy) and a court process, and it takes several weeks.
If the title is in someone else's name—a previous owner, a family member, or a business—that person must sign it over to you. They'll need to sign the back of the title and provide a bill of sale or written statement of transfer. If they're unavailable or unwilling, you'll need a power of attorney document signed by them, notarized, giving you authority to register the vehicle. Some states allow a spouse or when ready family member to register a vehicle in a deceased person's name; contact your state DMV for the specific process and required documents.
Emissions testing and safety inspections
About half of U.S. states require an emissions test before you can register a used car, and a few require it for new cars as well. The test checks whether your vehicle's exhaust meets state pollution standards. You must have the test done at a state-approved emissions testing facility before you go to the DMV; the facility will give you a certificate or print a report that you bring with you. The test costs $20 to $50 depending on your state and vehicle type.
Some states also require a safety inspection covering brakes, lights, tires, and steering. This is separate from emissions testing and must be done at an approved inspection station. A few states combine both into a single inspection. Check your state DMV website to see whether your vehicle needs either test; if it does, complete the test before you attempt to register. If your vehicle fails, you'll need to repair it and retest before the DMV will process your registration.
Registering a vehicle with a lien or loan
If you financed your car, the lender holds a lien on the title, meaning they have a legal claim to the vehicle until you pay off the loan. You can still register the car—the lender's name will appear on the registration as the lienholder, but you own and drive it. Bring the same documents to the DMV: your ID, proof of insurance, and the title (which will show the lender's name). The registration fee is the same whether or not there's a lien.
Once you pay off the loan, the lender will release the lien and send you a release document or a new title without their name. You don't need to re-register the car unless your state requires it; in most states, the old registration remains valid. If you sell the car while it's still financed, the buyer cannot register it in their name until the lien is released. The sale proceeds typically go to the lender first to pay off the loan, and any remaining money goes to you.
Frequently Asked Questions
Can I register a car online in my state?
Many states allow online registration for renewals and some new registrations, but availability varies. Check your state DMV website to see which registration types can be done online. You'll typically need the vehicle's VIN, current registration number (for renewals), proof of insurance information, and a payment method. Online registration usually takes a few minutes and is processed within 1 to 3 business days.
What if I move to a different state—do I need to re-register my car?
Yes, you must register your car in your new state within a set timeframe, usually 30 to 90 days after moving. Bring your out-of-state registration, title, proof of insurance, and ID to your new state's DMV. Some states require an emissions test or safety inspection even if your old state didn't. Your new registration fee will be based on your new state's rules, which may be higher or lower than what you paid before.
Do I need to register a car if I'm just borrowing it temporarily?
No, the owner is responsible for registration. If you're borrowing someone's car, it must already be registered in their name. Make sure you have proof of insurance (either the owner's policy or a temporary policy covering you as a driver) before you drive it. If you're buying the car, you must register it in your name before you can legally drive it, though you can use a temporary registration from the dealer or DMV for a short period.
What if my registration is expired—can I still drive the car?
No, driving with an expired registration is illegal and can result in a fine. If your registration has expired, renew it when ready through your state DMV online, by mail, or in person. Many states allow a grace period of a few days after expiration, but don't rely on it. You can renew before expiration to avoid any gap; most states allow renewal 30 to 90 days before the expiration date.
Do I need to bring the original title to the DMV, or can I bring a copy?
Most states require the original title or a certified copy. Photocopies are not accepted. If you've lost the original, request a duplicate from your state DMV before you go to register. Some states allow you to mail in the original title and receive it back, while others keep it on file. Ask your state DMV whether you need to bring the original or if a certified copy is acceptable.