A CarMax power of attorney form lets someone other than a vehicle’s titleholder sign the sale or trade-in paperwork at CarMax. It’s a limited power of attorney: it covers only the specific vehicle transaction, not the absent owner’s finances or other affairs. CarMax normally requires every titleholder to appear in person with valid photo ID, so when a co-owner can’t make the appointment, this form is the workaround.1CarMax. What Do I Need to Sell My Car to CarMax?
If you’re the sole name on the title and can show up yourself, you don’t need this form at all. Bring your title, registration, photo ID, and all keys and remotes, and you’re done.1CarMax. What Do I Need to Sell My Car to CarMax?
When You Need One
The typical trigger is a title with two names and only one person available. Joint titles between spouses, a parent and child, or business partners all fall into this category. Common real-world versions: an elderly parent who can’t travel, a servicemember stationed overseas, or an ex-spouse who moved out of state after a divorce. In each case, the absent titleholder signs the power of attorney in advance, and the person going to CarMax presents it alongside their own ID.
Getting the Form From CarMax
CarMax has its own power of attorney packet. Call the store where you plan to close the sale and ask for it — staff can send the packet electronically or by mail. The absent titleholder fills it out, signs it in front of a notary, and returns the original to whoever will be at the appointment.
Move quickly. CarMax appraisal offers are typically valid for seven days, and a notarized form mailed across the country can eat that window fast. Start the request the same day the offer comes in.
Depending on the state, CarMax may also accept or require the state DMV’s own vehicle power of attorney form instead of, or alongside, its packet. Ask the store which combination applies to your title before the absent owner signs anything.
State DMV Forms You May Also Need
Many states publish their own government-issued power of attorney forms for vehicle transactions, and the local DMV or tag office may require one to process the title transfer even after CarMax has accepted the sale. Examples:
- California — REG 260, the Power of Attorney for Vehicle, Vessel, or Mobilehome. The DMV also includes a power of attorney section on the Vehicle/Vessel Transfer and Reassignment Form (REG 262), so either form can work.2California Department of Motor Vehicles. Vehicle Industry Registration Procedures Manual – Signature by Power of Attorney (POA) (VC 1652)
- Texas — VTR-271, the Limited Power of Attorney for Eligible Motor Vehicle Transactions. If the form is used to apply for title or initial registration, both the grantor and grantee must include a photocopy of their photo ID.3Texas Department of Motor Vehicles. VTR-271 – Limited Power of Attorney for Eligible Motor Vehicle Transactions
- Georgia — T-8, the Limited Power of Attorney for Motor Vehicle Transactions, issued by the Georgia Department of Revenue.4Georgia Department of Revenue. T-8 Limited Power of Attorney/Motor Vehicle Transactions
- New York — the state accepts a general power of attorney for buying, selling, or registering a vehicle, though auto dealers and their employees cannot use a general POA to transfer a vehicle and need additional documentation.5Department of Motor Vehicles. Power of Attorney for Vehicle Transactions
Check with your state’s DMV before the appointment. Using the wrong form, or skipping the state form entirely, can hold up the title transfer even after CarMax has cut the check.
Filling Out the Form
Gather the documents before anyone starts writing. Mismatched information between the form and the title is the fastest way to have the paperwork bounced.
- Vehicle details: the 17-character Vehicle Identification Number, year, make, model, and body type. Federal regulations require every VIN to be exactly 17 characters. Copy it from the title or the metal plate on the driver’s-side dashboard rather than from memory.6eCFR. 49 CFR Part 565 – Vehicle Identification Number (VIN) Requirements
- Principal’s information: the full legal name and residential address of the absent titleholder granting authority. The name must match the title and the principal’s driver’s license exactly.
- Agent’s information: the full legal name and mailing address of the person who will appear at CarMax to sign on the principal’s behalf.
- Additional details: some forms also ask for the current odometer reading and the license plate number.
Print clearly. If the form has a section for describing the authority granted, keep it narrow: something like “sell the described vehicle to CarMax and sign all related title, registration, and odometer disclosure documents.” Broader language can raise questions and may not be accepted.
Notarization
The principal must sign the form in front of a notary public. The notary verifies the signer’s identity with government-issued photo ID, watches the signature, and applies a notarial seal. This step is what makes the document enforceable; an unnotarized power of attorney will be rejected by both CarMax and the DMV.
Notary fees for a single acknowledgment vary by state, generally $2 to $25. Many banks and UPS Store locations offer notary services, and some states permit remote online notarization when the principal can’t reach a notary in person. Notaries confirm identity only; they don’t review whether the form is filled out correctly, so accuracy is on you.
If the Title Is Missing or Held by a Lender
When the original title is lost or held by a lienholder, federal law layers on an extra requirement. Under 49 CFR 580.13, a seller who can’t hand over the physical title must use a secure power of attorney — a state-issued form printed on tamper-resistant paper — to handle the odometer mileage disclosure.7govinfo.gov. CFR-2019-title49-vol7-sec580-13 A generic power of attorney doesn’t satisfy this rule because it lacks the security features and specific disclosure fields the regulation demands.8National Highway Traffic Safety Administration. Interpretation ID: MOPOA.ETL
The secure form captures the odometer reading (excluding tenths of a mile), the date of transfer, both parties’ names and addresses, a vehicle description, and a certification about whether the reading reflects actual mileage. The seller signs and certifies the mileage; the buyer signs and receives a copy. If the mileage later entered on the title is lower than what was disclosed on the secure form, the power of attorney is void.7govinfo.gov. CFR-2019-title49-vol7-sec580-13
Georgia, for example, distinguishes between the standard T-8 and a T-8S Secure Power of Attorney, which has security printing and dedicated odometer fields. The secure version is only for cases where the title is genuinely unavailable, not just inconvenient to retrieve.9Department of Revenue. Power of Attorney Usage – Motor Vehicle If the title is at home, go get it.
If the vehicle has an active loan, bring the lender’s name, account number, and approximate payoff amount to the appointment. CarMax handles lien payoffs directly in many cases, sending the balance to the lender and processing the title release. The power of attorney itself typically doesn’t grant authority to negotiate the loan payoff — its scope is the sale and title documents.
Bringing It to CarMax
Bring the original notarized power of attorney to the CarMax Business Office. Photocopies won’t be accepted. The agent should also bring their own valid photo ID, the vehicle’s registration, all keys and remotes, and the title if it’s available.1CarMax. What Do I Need to Sell My Car to CarMax? If the form is being mailed from the absent titleholder to the agent, use a trackable shipping service; losing a notarized original means starting over.
CarMax’s administrative team compares the document against the title and state requirements before finalizing the sale. A misspelled name, a wrong VIN digit, or a missing notary seal stalls the transaction until a corrected form arrives. Most of these delays are avoidable by checking every field against the title before the principal signs.
Canceling the Authority Before the Sale Closes
A limited power of attorney for a vehicle sale usually expires on its own once the transaction closes. If the deal falls through or the principal changes their mind first, the principal can revoke it in writing. The revocation should name the agent, reference the original document, and state the effective date. Some states require the revocation itself to be notarized. Notify both the agent and CarMax in writing so no one acts on authority that no longer exists.
Drafting a new power of attorney that expressly cancels earlier versions is another way to revoke, useful if you want to name a different agent. The principal needs mental capacity to revoke; someone who has become incapacitated cannot cancel the document themselves. If the principal dies, the power of attorney terminates automatically and CarMax cannot complete the sale under that authorization.
Common Mistakes That Stall the Transfer
Paperwork mismatch is the top problem. If the name on the power of attorney doesn’t match the title character for character — middle initials, suffixes, hyphens — the DMV will reject the title transfer even when CarMax accepts the sale. Verify against the title itself, not against a driver’s license, because the title is the record the state relies on.
Forging or altering a power of attorney is a criminal offense. Depending on the state, forgery tied to vehicle documents can be charged as a felony, and federal odometer fraud carries its own penalties. CarMax’s compliance team reviews every power of attorney before releasing payment, and state DMV systems flag inconsistencies during title processing.