
Adding someone to your car registration, also known as adding a co-owner, is a straightforward process handled by your local Department of Motor Vehicles (DMV). The exact steps and required documents vary significantly by state, but the core action almost always involves applying for a new certificate of title that includes both names. You cannot typically just add a name to the existing registration; the vehicle's title must be updated first.
The most common method is to complete a title transfer application. You'll need to surrender your current title and submit a new title application with both your name and the new co-owner's name listed. The key is specifying the correct co-ownership type on the new title. The two main types are:
You will both need to provide proof of identity, and the vehicle may need a current smog or safety inspection certificate. Be prepared to pay title transfer fees and any applicable sales tax. If there is an outstanding loan on the car, the process becomes more complex as you'll need the lender's involvement to release the lien before any ownership changes can be made.
The table below outlines the general requirements and examples of state-specific variations:
| Requirement / Fee Type | General Description | California Example | Texas Example | New York Example |
|---|---|---|---|---|
| Primary Form | Application for Duplicate or Transfer of Title | REG 227 form | Form VTR-130 | MV-82TO form |
| Current Title | Must be surrendered/signed over | Required | Required | Required |
| Smog Certificate | Often required for transfer | Required | Not required for transfer | Safety inspection required |
| Base Fee (Approx.) | Varies by state | $21 | $28 | $50 |
| Sales/Use Tax | Based on vehicle value | 7.25% + local tax | 6.25% | 4% state tax + local fees |
| Co-owner Presence | Often both must sign | Not always required | Both signatures required | Both must sign |
The safest approach is to visit your state's official DMV website or call ahead to confirm the specific documents and fees required. This avoids multiple trips and ensures the change is processed correctly.

You gotta go to the DMV, plain and simple. It’s all about the title, not the registration slip. Bring your current title, your license, and the person you're adding. You'll fill out a form to get a new title with both your names on it. Just be ready for a wait and a fee. Check your state's DMV website first to see if you can start the process online—it might save you a whole afternoon.

Think of it as changing the vehicle's legal ownership document, which is the title. The registration just reflects who the titled owners are. So, the core task is to apply for a revised title. You'll need to complete a specific form for a title transfer, often indicating the nature of the co-ownership. I recommend verifying the exact procedure on your state's DMV portal. Having a lien complicates things, as the lender's permission is necessary before any names can be changed on the title.

My husband and I did this when we bought a car together. It's not hard, but it requires a trip to the DMV with the right paperwork. You both need to go, with your driver's licenses and the original title. You'll sign the back of the old title and fill out a new application. The clerk will ask how you want to hold the title—we chose "right of survivorship." A few weeks later, a new title arrived in the mail with both our names. The registration updated automatically.


