Money & Finance › Payments & money movement
Credit and debit card payments: how a swipe or tap gets paid
Since 1950· Concept
Fact, law or dataA rule, statute, definition or measured number.
A four-party system, cardholder, issuing bank, merchant and merchant's bank, linked by a card network that approves and settles each purchase.
See it on the Money & Finance map →How it works
At checkout the terminal sends chip, tap or online card data through the merchant's processor and the network to the issuing bank, which approves or declines in about two seconds. Transactions clear in nightly batches, and the merchant is paid in one to two business days, minus fees of roughly 1.5–3.5%. Credit cards borrow from the issuer; debit cards draw on checking. Cardholders can dispute charges, and merchants absorb many fraud losses, especially online. US card purchases were about $11.9 trillion in 2024 (Nilson).
Why it matters
Cards are the most-used US payment and the most reversible. That protects buyers but costs merchants, including landlords taking rent by card: about $187 billion in fees in 2024.
Facts, rules and data
Diners Club's 1950 charge card began the industry; today the Fed Payments Study, Nilson Report data, network rules, and Reg Z and Reg E dispute rights document how it works.
Debates and risks
Whether card rewards are partly paid for by cash and debit users through higher store prices is debated by economists.
Inside this (6)
- Card networks: Visa, Mastercard, American Express, Discover
- Interchange 'swipe' fees merchants pay on card sales
- Debit cards and PIN networks (Star, NYCE, Pulse)
- Mobile wallets and tap-to-pay: Apple Pay and Google Pay
- Chargebacks and dispute rights (Reg Z and Reg E)
- Payment processors and acquirers: Stripe, Square, Fiserv
Connections (5)
▸Credit and debit card payments: how a swipe or tap gets paid often draw on revolving credit in Consumer credit: credit cards, auto and student loansFact, law or data
The connection
A credit card purchase is a short-term loan from the issuer. Paid in full, it is free credit for about a month; carried over, it becomes revolving debt at around 22% APR. US credit card balances passed $1.2 trillion in 2025, the largest piece of revolving consumer credit.
When and why
In the US since BankAmericard's 1958 launch; balances tracked by the New York Fed and the Fed's G.19 release.
How we know
New York Fed Household Debt and Credit reports and Federal Reserve G.19 consumer credit data.
Debates and risks
Whether a 10% APR cap, proposed in Congress in 2025, would help borrowers or cut off credit to riskier ones is debated.
▸Card networks: Visa, Mastercard, American Express, Discover route and set rules for Credit and debit card payments: how a swipe or tap gets paidFact, law or data
The connection
Every card payment passes through a network that relays the approval request from the merchant's bank to the card issuer, then clears and settles the day's transactions between them. The network writes the rules on fees, chargebacks, data security and which cards merchants must accept.
When and why
Worldwide; Visa and Mastercard carry most US card volume, with American Express and Discover the rest.
How we know
Network rulebooks, published interchange tables and the Nilson Report's market-share data.
Debates and risks
Whether rules like 'honor all cards' protect the system or block competition is central to the fight over the 2025 merchant settlement.
▸Chargebacks and dispute rights (Reg Z and Reg E) let cardholders reverse disputed Credit and debit card payments: how a swipe or tap gets paidFact, law or data
The connection
The cardholder disputes a charge with its bank (the issuer), which files a chargeback through Visa or Mastercard with a reason code. The network moves the money back from the merchant's bank (the acquirer), which debits the merchant plus a fee, often $15–$100. The merchant can contest with evidence, and the network arbitrates.
When and why
Built into card network rules for decades; US cardholders file millions of disputes a year, and merchants with high dispute ratios face fines.
How we know
Visa and Mastercard dispute rules and reason codes, and merchant processing agreements listing chargeback fees and ratio limits.
Debates and risks
How to curb 'friendly fraud' without weakening consumer protection; merchants and issuers disagree on its size.
▸Mobile wallets and tap-to-pay: Apple Pay and Google Pay replaced the swipe with a tap in Credit and debit card payments: how a swipe or tap gets paidFact, law or data
The connection
A wallet payment is still a card payment: same issuer, network, fees and dispute rights. What changed is checkout: an NFC tap confirmed by Face ID or a fingerprint replaces the magnetic swipe, which was easy to copy. Contactless cards spread tapping further after 2020.
When and why
US stores from 2014, accelerating during COVID-19 in 2020–21.
How we know
Network and issuer data on contactless share, and EMV chip liability rules in place since October 2015.
Debates and risks
Whether phones will replace physical cards entirely, or both persist for years, is open.
▸Payment processors and acquirers: Stripe, Square, Fiserv connect merchants to Credit and debit card payments: how a swipe or tap gets paidFact, law or data
The connection
A tap sends card data from the merchant's terminal to the processor, which routes it through the network to the issuer for approval in about two seconds. That night the processor batches sales; the issuer pays the network, which pays the acquirer, and the merchant gets the money minus interchange, network fees and the processor's markup, usually within two days.
When and why
Every US card sale; Fiserv, JPMorgan Chase, Global Payments, Stripe and Block's Square are among the largest US acquirers.
How we know
Card network operating rules, processors' SEC filings, and the Nilson Report's acquirer rankings.
Debates and risks
How much of the merchant fee is fair cost versus market power, argued in Congress over the proposed Credit Card Competition Act.