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What do Visa and Mastercard do? An intro to card networks

https://tautology.town/2026/06/01/card-networks.html
46•evakhoury•1d ago

Comments

hungryhobbit•21m ago
They tax our entire economy at X rate, while maintaining their infrastructure only requires Y cost ... and X is significantly higher than Y.

From the actual article:

> The payment processor keeps 0.35% ($0.35), then pays 2% ($2.00) to the cardholder’s issuing bank and 0.15% ($0.15) to Visa. The 2% is the interchange fee, commonly known as interchange. The 0.15% is the network assessment fee. 8

In other words, they get 0.35% of every transaction ... and it does not require anything close to that to maintain their network.

superxpro12•8m ago
middlemanning is the most american of business ventures
gloryjulio•2m ago
> and it does not require anything close to that to maintain their network.

If it's so easy to disrupt visa/mastercard payment network, they wouldn't be able to charge this much. Payment is a highly competitive business. We witness so many payment companies went under or were bought out, but these two stay for years and are still profitable.

The truth is their moat is considered very durable and hard to build. A global n banks to n banks payment network is not as simple as how people thought.

UltraSane•2m ago
Credit card companies are mostly parasitic middle men but I have a credit card that I use for most payments and pay off the balance every month and effectively get 2% cashback with no interest costs.
losteric•1m ago
The actual rates charged to merchants are variable, and typically higher for rewards/cashback cards.

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What do Visa and Mastercard do? An intro to card networks

https://tautology.town/2026/06/01/card-networks.html
46•evakhoury•1d ago•6 comments

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