
Yes, a spouse can sign a car title, but only under specific circumstances. The primary rule is that only the person(s) whose name(s) are printed on the title as the owner(s) have the legal authority to sign it. If the title lists only one spouse as the owner, the other spouse cannot sign it unless they have a legally recognized power of attorney granting them that explicit authority. However, if the title is held in both names with a designation like "John OR Jane Doe," either spouse can sign to sell or transfer the vehicle. If it's held as "John AND Jane Doe," typically both signatures are required.
The laws governing vehicle title transfers are state-specific, making it critical to check your local Department of Motor Vehicles (DMV) rules. Signing a title you have no legal right to sign constitutes fraud and can lead to significant legal and financial complications, invalidating the sale and creating a chain of title problems for the new buyer.
The most common scenarios break down as follows:
Before any transaction, inspect the title carefully. The best practice is to handle the transfer at your local DMV office together to ensure all steps are completed correctly and to avoid future liabilities.
| Title Ownership Type | Can a Spouse Sign? | Typical Requirement | Potential Pitfall |
|---|---|---|---|
| Sole Owner (One Name) | No | Only the named owner can sign. | Signing without authority is title fraud. |
| "John AND Jane Doe" | Usually No | Most states require signatures from both parties. | The DMV will reject the transfer if a signature is missing. |
| "John OR Jane Doe" | Yes | Either co-owner can sign independently. | Ensure the title uses "OR" and not "AND." |
| With a Power of Attorney | Yes | Requires a specific, notarized DMV form. | Using an expired or incorrect POA form invalidates the transfer. |
| Upon Owner's Death | No (directly) | The title must be transferred to the surviving spouse through probate first. | Signing a deceased person's title is invalid. |

Been through this! My husband's name was alone on the title of his old truck. When we sold it, the buyer asked if I could just sign it to save time. I called the DMV to double-check, and they were clear: only his signature was legal. It would have caused a massive headache for the buyer down the road. Always look at the title—whoever's name is printed is the one who has to sign. No exceptions, unless you have that power of attorney paperwork sorted out beforehand.

From a legal standpoint, authorization to sign a title is derived solely from being the named owner. Marital status does not automatically grant this right. The document itself dictates who can execute the transfer. If the title shows "and," it's a joint tenancy requiring both signatures. If it shows "or," it's a tenancy in common, allowing either to sign. Attempting to sign without proper authority invalidates the title and can result in allegations of forgery. Always verify ownership on the face of the document before proceeding.

Don't assume you can sign just because you're married. I almost made that mistake when we were trading in my wife's car. The dealer took one look at the title, saw only her name, and said my signature wouldn't count. We had to wait for her to get off work to finish the paperwork. It’s a simple rule: check the owner line on the title. If your name isn’t there, your pen shouldn’t be touching it. It’s all about who legally owns the car, not who shares the garage.


