MCC 3423 covers AVCAR RENT-A-CAR merchants, classified under airline. To maximize rewards at these businesses, look for credit cards with broad spending bonuses or airline category multipliers. MCC Lookup Tool to find which cards earn bonus rewards here.
Hertz, Enterprise, and Avis use MCC 3423 for car rentals. Specific purchases include daily rental rates, long-term leases, and weekend specials.
When you swipe your credit card at any of these merchants, the transaction posts as MCC 3423 (avcar rent-a-car). Your card issuer uses this code to determine whether airline category bonuses apply — so knowing which merchants trigger this code helps you choose the right card before you spend.
Cardholders often误以为加油费用也会计入MCC 3423，实际上加油属于其他MCC代码。
This distinction matters because different MCC codes can trigger different bonus rates on your credit card, even for similar types of merchants. Always check your transaction statement to confirm which MCC posted — some card issuers allow you to see the MCC in their app or online portal.
MCC 3423 stands for AVCAR RENT-A-CAR. It is a four-digit Merchant Category Code used by payment networks to classify businesses in the airline category.
Merchants classified under MCC 3423 (AVCAR RENT-A-CAR) operate in the airline sector. Card networks assign this code during merchant onboarding based on the primary business activity.
MCC 3423 (AVCAR RENT-A-CAR) is not currently a dedicated bonus category for most major credit cards. For airline spending at these merchants, a flat-rate rewards card (1.5–2% on all purchases) is typically your most reliable option. Use our MCC Lookup Tool to find the best card for any specific merchant.
Currently, no credit cards in our database have a dedicated bonus category for MCC 3423 (AVCAR RENT-A-CAR). Most purchases posting with this code will earn base rewards (typically 1–1.5x on everyday cards). A flat-rate cashback card is the most predictable choice for airline spending.
MCC 3423 is assigned to businesses providing avcar rent-a-car services. While this is a less common merchant category, any purchase that posts with code 3423 will be classified as 'AVCAR RENT-A-CAR' by your card issuer, which determines whether airline category bonuses apply to that transaction.
MCC 3423 (AVCAR RENT-A-CAR) and MCC 3000 (UNITED AIRLINES) are both in the airline category but cover distinct merchant types. MCC 3423 is used for avcar rent-a-car businesses, while MCC 3000 is assigned to united airlines merchants. Both may qualify for the same bonus category on your card — check your card's terms or use our MCC Lookup Tool to confirm.