Visa and Mastercard Don’t Lend You Money

A common surprise: Visa and Mastercard don’t issue your card, set your limit or charge you interest. Your bank does all of that. Visa and Mastercard run the networks: the rules and the systems that carry each payment between your bank and the shop’s bank. How a single payment travels is in What Happens in the 3 Seconds After You Tap Your Card?

Where the Shop’s Fee Goes

When you pay by card, the shop doesn’t receive the full amount. It pays a small percentage, the merchant discount rate (MDR), and that fee is split three ways:

A card payment at a shopThe shop keeps most of itFee (MDR)a small %Interchangeto YOUR bank (largest part)Network feesto Visa / MastercardThe restto the shop’s bank
The shop pays the fee, not you. Most of it goes to your own bank as interchange; Visa or Mastercard takes a small network fee.
  • Interchange goes to your bank, the card issuer. It is the biggest part, and it pays for rewards, fraud losses and the interest-free period.
  • Network fees go to Visa or Mastercard.
  • The rest goes to the shop’s bank (the acquirer) for the card machine and processing.

How Visa and Mastercard Make Money

  • Small fees on huge volumes. They charge banks a fraction of each payment, plus small fees per transaction. Across billions of payments a year, that adds up to a very large business.
  • International payments. Paying in another currency or abroad carries higher fees, and is one of their most profitable lines.
  • Services for banks. Fraud scoring, tokenisation and data services on top of the network.

They take no credit risk: if you don’t pay your bill, that is your bank’s problem, not Visa’s. That is why the network business is so profitable.

Why UPI Is Free, and RuPay Is Different

In India, UPI payments from a bank account and RuPay debit card payments carry zero MDR: the government set it that way to push digital payments, and supports the system through incentive schemes instead. UPI is run by NPCI, which is not set up to make a profit. RuPay is NPCI’s own card network, so it competes with Visa and Mastercard on cards, while UPI competes with cards altogether. How a UPI payment works is in How UPI Works.

So Who Really Pays?

You don’t see a card fee, but shops build their costs into prices. That is why some small shops prefer UPI, and why a few add a surcharge for cards. The rewards on premium cards are largely funded by interchange.

This article explains how the systems work. It is not financial advice, and limits and rules change: check the current ones with RBI, NPCI or your bank.