Managing your car loan doesn't have to feel like guesswork. If you need to reach out to your lender, find your account details, or sort out a payment issue, getting the right contact info immediately saves you from endless phone trees. The primary support line for CarMax Auto Finance is (800) 925-3612. Representatives are available Monday through Friday from 8:00 AM to 10:00 PM, and on Saturdays from 9:00 AM to 6:00 PM Eastern Time.
Beyond just dialing a number, handling your account requires knowing where to send physical checks, how to process principal-only payments, and what steps to take if you run into financial hardships. This breakdown cuts through the generic advice and gives you the exact details you need to manage your loan effectively.
Direct Phone Numbers and Operating Hours
When you dial (800) 925-3612, you reach the dedicated auto finance department. If you call outside of standard hours, an automated system can still help you handle routine tasks like checking your balance or making automated payments.
- Auto Finance Customer Service: (800) 925-3612
- General CarMax Customer Relations: (800) 519-1511
- Car-Buying and Shopping Help: (833) 760-2604
- Fax Line for Documents: (770) 423-4376
Keep your account number ready before you place the call. If you don't know your account number, you can find it on your welcome email, your original financing paperwork, or by logging into your online profile at the CarMax Auto Finance portal.
Complete Breakdown of Payment Options
Sending money to the right address ensures your payments post on time and avoids unnecessary late fees. Depending on how you prefer to pay, several distinct methods are available.
Standard Monthly Payments
If you mail physical checks or money orders, send them to the primary lockbox address. Always write your account number clearly in the memo field.
CarMax Auto Finance P.O. Box 6045 Carol Stream, IL 60197-6045
Mail your payment at least 7 to 10 days before your actual due date to account for postal delays.
Principal-Only Payments
If you want to pay down the principal balance faster to reduce overall interest charges, standard online or mailed payments might automatically distribute funds across future scheduled bills. To ensure extra funds go strictly toward the principal, you must call customer service at (800) 925-3612 or manage the setting directly through your online dashboard.
Loan Payoffs
If you are trading in your vehicle, refinancing through a credit union, or paying off your loan in full, use the specific payoff address rather than the standard monthly payment P.O. box:
- Regular Mail: CarMax Auto Finance, Attn: Payoff Department, P.O. Box 440609, Kennesaw, GA 30160
- Overnight or Express Delivery: CarMax Auto Finance, Attn: Payoff Department, 225 Chastain Meadows Court, Suite 210, Kennesaw, GA 30144
Third-Party Cash Services
You can use Western Union or MoneyGram if you need to make an urgent payment without using a bank account.
- Western Union: Call (800) 238-5772 to find a local agent. Use "CarMax" for the country code and "Georgia" for the state code, and include your account number.
- MoneyGram: Visit a retail location and use Receive Code 4645, company name "CarMax", and city/state "Kennesaw, GA" along with your account number.
Both third-party services typically take one full business day to post funds to your account and may charge a separate transaction fee.
Managing Your Account Online and via App
Most account management tasks don't require a phone call. By registering an online profile or downloading the official mobile application, you can execute several tasks instantly:
- Update your residential address or phone number
- Set up recurring monthly ACH auto-debits
- View historical payment records and tax documents
- Request due date changes or temporary payment extensions
If you update your address online, make sure you also update your details with your local state motor vehicle department to keep your vehicle registration valid.
Frequently Asked Questions
What should I do if my car is totaled in an accident?
If your vehicle suffers a total loss, insurance payouts will go toward your remaining loan balance. You should contact customer service immediately at (800) 925-3612 to coordinate the insurance claim paperwork, discuss gap insurance coverage, and map out your next steps.
How do I request military relief benefits?
If you are on active duty military service, you may qualify for specific protections under the Servicemembers Civil Relief Act (SCRA). You can submit your orders and request benefits by calling customer service, emailing your documentation, faxing them to (866) 841-4386, or mailing them to the Kennesaw, Georgia processing center.
Why is my payment taking longer to post?
Payments made via standard mail can take over a week to arrive and process. If you notice a delay, verify that you included your full account number on the check. For faster tracking, switch to electronic payments through your online profile to ensure instant ledger updates.
Can I change my monthly payment due date?
Yes, you can request a due date adjustment by speaking directly with a customer service representative. Keep in mind that certain restrictions apply regarding how many times you can shift your date within a calendar year, and it may trigger a short-term interest adjustment on your next statement.
