How to Register a New Vehicle in Missouri

What you need to register a new car in Missouri

To register a new vehicle in Missouri, you'll need to visit your county assessor's office or a license office with your title, proof of ownership, proof of residency, and a completed Form 108 (process for Missouri License Plates). The assessor's office will verify the vehicle identification number (VIN), calculate your registration fee based on the vehicle's value, and issue your plates and registration card. Most new vehicles come with a temporary permit from the dealer, which gives you time to complete registration before the permit expires.

Missouri bases registration fees on the vehicle's actual cash value in the year you register it. The fee structure changes annually, so the exact amount depends on what your vehicle is worth when you submit your paperwork. You'll also pay a one-time title fee if you're titling the vehicle for the first time in Missouri.

Key Takeaways

You must register your new vehicle at your county assessor's office within the timeframe allowed by your temporary permit, typically 30 days.
Bring your title, proof of ownership from the dealer, proof of Missouri residency, and a completed Form 108 to complete registration.
Registration fees are based on your vehicle's actual cash value and vary by year; the assessor's office calculates the exact amount when you register.
Your registration card and plates are issued on the same day in most cases, though some offices mail plates separately.

Documents the assessor's office will ask for

Start with your title or manufacturer's certificate of origin (MCO). If you financed the vehicle, the lender's name will appear on the title. Bring the title exactly as it is — do not sign it before you arrive at the assessor's office. You'll also need proof of ownership, which is usually the bill of sale or window sticker from the dealer showing the vehicle identification number and sale details.

Next, bring proof of Missouri residency. Acceptable documents include a utility bill, lease agreement, mortgage statement, or bank statement showing your current address. The document must be dated within the last 60 days. You'll also need a valid Missouri driver's license or state ID card to verify your identity.

Complete Form 108 (process for Missouri License Plates) before you go. You can read it from the Missouri Secretary of State website or pick up a copy at the assessor's office. The form asks for your name, address, vehicle information, and intended use (personal, commercial, or other). If you're registering the vehicle in a business name, bring documentation showing your authority to register it on behalf of that business.

How the fee is calculated and when you pay

Missouri calculates registration fees using a formula based on your vehicle's actual cash value (ACV). The assessor's office uses the National Automobile Dealers Association (NADA) guide or similar valuation source to determine what your specific make, model, and year is worth. The fee is not a flat amount — it changes each year as the vehicle ages and depreciates.

You'll pay the registration fee at the time you register, along with a one-time title fee if this is the first time the vehicle is being titled in Missouri. Some counties accept cash, check, or card; payment methods vary by office. Ask when you call to confirm what your office accepts. If you're financing the vehicle, the lender may handle the title fee as part of the loan process, but you'll still pay the registration fee yourself.

Temporary permits and registration important date

When you buy a new vehicle, the dealer issues a temporary permit (also called a temporary tag or transit permit). This permit allows you to drive the vehicle legally while you complete registration. The permit is valid for a set number of days — typically 30 days from the date of purchase, though this can vary. Check the permit itself for the exact expiration date.

You must complete registration before the temporary permit expires. If you miss the important date, you cannot legally drive the vehicle, and you may face a fine if stopped by law enforcement. If you need more time, contact your county assessor's office before the permit expires to ask about an extension. Some offices will grant a brief extension if you have a documented reason, but do not count on this — plan to register within the permit period.

Where to register and what to expect

Register your vehicle at your county assessor's office. Missouri has 114 counties, and each has its own assessor's office. Find yours by searching "[your county] assessor's office" online or by calling your county courthouse. Some larger counties also have satellite license offices in different cities, which may have shorter wait times than the main office.

Call ahead or check the office's website for hours and any current wait times. Many offices accept walk-ins, but some require appointments, especially during busy seasons like month-end or after holidays. Bring all required documents in one trip — you'll need everything to complete registration on the same day.

The process usually takes 15 to 45 minutes, depending on how busy the office is and whether your paperwork is complete. The assessor's office will verify your VIN by inspecting the vehicle or reviewing the manufacturer's certificate. Once verified, they'll issue your registration card and plates. In most cases, you'll leave with your plates the same day, though some offices mail plates separately and give you a temporary registration card to use while you wait.

Special situations: Financed vehicles and out-of-state titles

If you financed your vehicle, the lender's name will appear on the title as a lienholder. You can still register the vehicle in Missouri — the lienholder's name on the title does not prevent registration. Bring the title as issued by the manufacturer or the previous state. The assessor's office will not remove the lienholder's name; that happens only when the loan is paid off and the lender releases their interest.

If you're moving to Missouri from another state and bringing a vehicle titled in that state, you'll need to transfer the title to Missouri before you can register it. This is a separate process from registration and usually involves submitting your out-of-state title, proof of ownership, and proof of residency to the assessor's office. Some states require you to have the title notarized or to submit additional documents. Contact your county assessor's office before you move to learn what documents your previous state's title will need.

Plates, registration cards, and what comes next

Missouri issues standard passenger plates for most new vehicles. The plate format is three letters followed by three numbers (for example, ABC 123). Your registration card shows your name, address, vehicle information, and the plate number. Keep the registration card in your vehicle at all times — you must show it to law enforcement if stopped.

Your registration is valid for one or two years, depending on your vehicle's age and the fee you paid. The registration card will show the expiration date. You'll receive a renewal notice in the mail about 30 days before expiration. Missouri allows online renewal for most vehicles, though you can also renew in person at the assessor's office.

Frequently Asked Questions

Can I register my new vehicle online instead of going to the assessor's office?

No, new vehicle registration requires an in-person visit to your county assessor's office. The assessor must verify your vehicle identification number and inspect the vehicle or manufacturer's certificate. Online registration is available only for renewal of existing registrations, not for new vehicles.

What if I buy a new vehicle but don't have a Missouri driver's license yet?

You can register the vehicle with a valid out-of-state driver's license and proof of Missouri residency. However, you'll need to obtain a Missouri driver's license within a certain timeframe after moving to the state. Contact your county assessor's office to confirm whether they'll register your vehicle with an out-of-state license.

Do I need to have the vehicle inspected before I register it?

No vehicle inspection is required for new vehicle registration in Missouri. The assessor's office verifies the VIN and checks the title and ownership documents, but there is no safety or emissions inspection for new cars at registration time.

What happens if my temporary permit expires before I can register?

You cannot legally drive the vehicle after the permit expires. Contact your county assessor's office when ready to ask about an extension or to schedule an urgent registration appointment. If you're stopped by law enforcement after the permit expires, you may receive a citation.

Can I register a new vehicle in someone else's name?

You can register a vehicle in a name other than your own if you have legal authority to do so — for example, if you're registering it on behalf of a business or as a co-owner. Bring documentation showing your authority, such as a power of attorney, business license, or co-ownership agreement. The person whose name appears on the registration must sign the process.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.