A power of attorney can sign a car title on behalf of the owner, but only when the document grants the agent authority over vehicle transactions and meets the state motor vehicle agency’s requirements for form, signature, and notarization. A POA drafted only for banking or real estate will be rejected at the title counter. The wording of the document, whether it survives the owner’s incapacity, and how the agent physically signs all decide whether the transfer goes through.1
What the POA Has to Say About Vehicles
Not every power of attorney covers car titles. A POA limited to bank accounts or real property gives the agent no authority over a vehicle. The document has to either name vehicle transactions specifically or use language broad enough to include them. Some states accept a general POA covering the principal’s “personal property” or “chattels and goods.” Others insist on a special or limited POA that identifies the exact car by make, model, year, and VIN.
The safest wording explicitly grants authority to sell, purchase, or transfer motor vehicles. For a single transaction, include the VIN and a description of the car in the document itself. States that have adopted the Uniform Power of Attorney Act generally treat a grant of authority over “tangible personal property” as covering vehicles, but not every state follows that framework, and some motor vehicle offices apply a stricter reading regardless of what the statute says.
When You Need a Durable POA
A common reason to send an agent to the title counter is that the owner is ill or no longer capable of handling their own affairs. In that situation the POA has to be durable. A durable POA stays in effect after the principal loses mental capacity. A non-durable POA ends the moment the principal becomes incapacitated, which is usually the exact moment the family needs it.
States that follow the Uniform Power of Attorney Act presume a POA is durable unless the document says otherwise. In states that presume the opposite, the document must contain specific language stating it survives incapacity. An agent who shows up with a non-durable POA after the principal has become incapacitated will be turned away, and the family may have to pursue a court-appointed guardianship or conservatorship instead.
How the Agent Signs the Title
The signature itself is where transfers get bounced. The agent does not sign only their own name. Standard practice is to sign the principal’s name followed by the agent’s name and capacity, in a form like “John Smith by Jane Smith, Attorney-in-Fact.” Some states require that exact format; others accept minor variations. What matters is that the title clearly shows whose authority is being exercised and who is physically signing.
Bring the original POA document, not a photocopy, unless the state explicitly accepts copies. Bring valid government-issued identification for the agent, and any documentation the state requires for the principal. Many motor vehicle offices will refuse to process the transfer if the agent cannot produce the original POA on the spot.
State DMV Forms and Filing Rules
Many state motor vehicle agencies publish their own POA forms designed specifically for vehicle transactions, and they strongly prefer or outright require those forms over a generic legal POA. The agency-issued forms are typically printed with security features and contain fields tailored to the transfer, including the VIN, odometer reading, and transaction type.
Some states treat the agency form as the only acceptable document for certain situations, particularly when the title is held by a lienholder or has been lost. In other states, a properly drafted general POA works, but the agent may still need to complete the state’s vehicle-specific form as a supplement. Before relying on a general POA, call the state motor vehicle agency and confirm which document they will accept.
Filing rules also vary. Some states require the original POA to be submitted with the title application and retained by the agency. Others simply review it and hand it back. A few require the POA to be filed or recorded with the motor vehicle office before the transfer takes place, not alongside it.
Notarization and Supporting Paperwork
Most states require the seller’s signature on a car title to be notarized, and when an agent signs under a POA, the notarization requirement applies to the agent’s signature. The notary verifies the agent’s identity and confirms the signing is voluntary. In many states the POA itself must also be notarized to be valid for a vehicle transaction, and some states add a witness requirement on top of notarization.
Expect to provide supporting paperwork beyond the title and POA. A bill of sale showing the purchase price, date, and vehicle details is required or strongly recommended in most states. States with emissions or safety inspection programs may require proof of compliance before the transfer can be completed. Missing signatures, incomplete forms, and small errors are the most common reasons POA-based title transfers get sent back.
Odometer Disclosure and the Separate Odometer POA
Federal law requires the seller to disclose the odometer reading on the title whenever a vehicle changes hands, and both seller and buyer must sign that disclosure. The disclosure has to include the mileage, the date of transfer, both parties’ names and addresses, and the vehicle’s identifying information.
A narrower type of power of attorney exists specifically for odometer disclosure. Federal regulations allow a seller to grant the buyer a POA for odometer disclosure purposes when the physical title is held by a lienholder, the physical title has been lost, the electronic title is controlled by a lienholder, or the electronic title cannot be accessed. The seller fills out and signs a jurisdiction-issued POA form disclosing the mileage, and the buyer signs it as attorney-in-fact. When the actual title later becomes available, the buyer must transfer the odometer reading onto the title exactly as the seller disclosed it.
There is a built-in fraud check. If the mileage on the POA form is lower than the mileage already shown on the title, the POA is automatically void and the buyer cannot complete the disclosure on the title. The exceptions are cases where the seller certified that the odometer exceeded its mechanical limits or that the reading does not reflect actual mileage. Falsifying an odometer disclosure is a federal offense carrying civil penalties up to $10,000 per violation, capped at $1,000,000 for a related series, and criminal penalties of up to three years in prison for knowing and willful violations.
Liens, Gifts, and Self-Transfers
A POA does not override a lender’s lien. If a loan is still outstanding, the lien appears on the title and the title cannot be transferred free and clear until the lien is satisfied. An agent with the right authority can pay off the loan from the principal’s funds and obtain a lien release, but cannot simply transfer the title and leave the lender holding an unsecured debt. Most motor vehicle offices will reject the application if a lien is still recorded and no release accompanies the paperwork.
An agent generally cannot transfer the principal’s car to themselves. The agent owes the principal a fiduciary duty of loyalty, and self-dealing is treated as a breach unless the POA document explicitly authorizes that specific kind of transfer. States following the Uniform Power of Attorney Act add that an agent who is not the principal’s spouse, ancestor, or descendant generally cannot create an interest in the principal’s property for themselves unless the POA specifically permits it. If you want your agent to be able to take the car, or to give it to a particular family member, say so in the document.
Gifts have their own wrinkle. When a vehicle is transferred as a gift rather than a sale, federal gift tax rules apply the same way whether the principal signs personally or the agent signs under a POA. For 2026, the annual gift tax exclusion is $19,000 per recipient. Above that threshold, the principal (not the agent) must file IRS Form 709. No gift tax is usually owed; the excess reduces the principal’s lifetime gift and estate tax exemption. The agent can sign the return on the principal’s behalf if the POA grants that authority.
When the POA No Longer Works
A mentally competent principal can revoke a POA at any time. The revocation should be in writing and delivered to the agent, to any third party relying on the POA such as a motor vehicle office or buyer, and recorded wherever the original POA was filed. Telling the agent alone can create problems if they keep acting and a third party relies on the old document in good faith.
A POA also ends on its own in several situations. The principal’s death terminates it immediately, and an agent who signs a title after the principal has died has no authority to do so; the transfer is invalid. A POA drafted for a single transaction ends when that transaction is complete. A non-durable POA ends if the principal becomes incapacitated. An agent whose authority has ended but who signs anyway, or who forges the principal’s signature or fabricates a POA, faces civil liability for breach of fiduciary duty and, depending on the conduct, forgery or fraud charges under state law, plus federal exposure if odometer fraud is involved.