Credit Card Networks: Visa vs Mastercard vs Amex vs Discover

The short answer: Visa, Mastercard, American Express, and Discover are the four networks that process card payments. Visa and Mastercard are the most widely accepted worldwide and are issued by banks; Amex and Discover are both network and issuer. For acceptance, especially abroad, Visa and Mastercard win.

Network vs issuer

The network (Visa, Mastercard, Amex, Discover) routes the transaction and sets acceptance; the issuer (Chase, Citi, Capital One, and so on) lends you the money and sets the rewards. Visa and Mastercard only run networks, so banks issue cards on them. Amex and Discover are unusual in being both the network and, usually, the issuer of their own cards.

Acceptance differences

Visa and Mastercard are accepted almost everywhere cards are taken, in the U.S. and globally, which is why they are the safest choice for international travel. American Express acceptance in the U.S. is now very broad, but it lags overseas and at some small merchants because of higher fees. Discover has the narrowest acceptance, especially abroad. Carrying a Visa or Mastercard as a backup when you travel is smart.

What it means for you

Rewards and most benefits come from the issuer and the card tier, not the network, so a Visa and a Mastercard from the same bank can be nearly identical. The network mainly affects where the card works and a baseline set of protections (see Visa Signature vs Infinite and World Elite Mastercard). For acceptance abroad, also check foreign transaction fees.

Frequently asked questions

What is the difference between a credit card network and the issuer?
The network (Visa, Mastercard, Amex, Discover) processes the payment and determines acceptance; the issuer (the bank) lends the money and sets the rewards. Visa and Mastercard are networks only; Amex and Discover are both.
Which credit card network is most widely accepted?
Visa and Mastercard are the most widely accepted, in the U.S. and internationally. Amex is broadly accepted in the U.S. but less so abroad, and Discover has the narrowest global acceptance.

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Bryce Casson

Bryce Casson, Founder of Cardocrat. Every card is ranked by what it actually returns, with all points valued at a flat 1 cent and offers verified against issuer sources. About the author.