A card tap, from 'Approved' to actually paid

1. 1

   message

   You tap your card at the merchant. Despite how final it feels, this is the start of a conversation, not a payment: no money has moved.

2. 2

   message

   The merchant's side asks its bank (the acquirer) whether this card is good for the amount.

3. 3

   message

   The acquirer routes that question through Visa's network.

4. 4

   message

   Your card's issuer answers yes or no, and on yes places a hold on your credit line. The 'Approved' you see is a promise, not a transfer.

   ▸Read the margin · 1 note

   ✗Myth vs reality

   'Approved' is not 'paid'

   Myth: a card approval means the merchant has been paid. Reality: approval is a message that reserves credit on the cardholder's line. Real money first moves at settlement the next day (leg 6), and the merchant isn't funded until a day or two after that (leg 9). The whole authorization round-trip moves zero dollars.

   • Visa Core Rules & interchange schedules ↗ · Visa (operator)
5. 5

   messageT+0 end-of-day batch

   At end of day the transactions are batched and cleared: the network reconciles who owes whom. Still records, not money.

   ▸Read the margin · 1 note

   ❖Why we're sure

   Why we're sure

   The separation of authorization, clearing, and settlement into distinct steps, with money moving only at settlement, is how open-loop card systems are documented by the network and the central bank.

   • Payment systems & settlement ↗ · Federal Reserve
6. 6

   moneyT+1 net settlement← the gap most people miss

   The next day, your issuer actually pays the network the net it owes. This is the first time real money moves.

   ▸Read the margin · 1 note

   ↳Going deeper

   When money actually moves

   Settlement is net, not transaction-by-transaction: issuers and acquirers pay or receive a single net position for the day, funded across the central-bank rails. That's why a single $40 tap never moves on its own; it's bundled into a day's totals and squared up here.

   • Payment systems & settlement ↗ · Federal Reserve
7. 7

   moneyT+1 net settlement

   The network pays the acquirer its net share.

8. 8

   money

   Out of that, the issuer keeps an interchange fee, netted inside the settlement totals rather than sent as a separate payment.

   ▸Read the margin · 1 note

   ↳Going deeper

   Who keeps the fee

   Interchange flows economically from the merchant/acquirer side to the issuer. The rate shown in the diagram is illustrative only; real rates vary by card product and merchant category per the network's published schedules. The merchant discount the seller actually pays adds network assessments and acquirer margin on top, and interchange is netted within the daily settlement totals rather than paid as a separate transfer.

   • Visa Core Rules & interchange schedules ↗ · Visa (operator)
9. 9

   moneyT+1–T+2 batch payout

   A day or two after your tap, the merchant is finally funded, net of the fees taken along the way.

   ▸Read the margin · 1 note

   ▲Where people get burned

   Funded net, and clawable for months

   The merchant is funded net of fees a day or two after the tap, and that money can still be pulled back via a chargeback for months afterward. The gap between 'approved at the counter' and 'irreversibly mine' is long, and it's exactly where merchants who treat an authorization as a completed sale get burned.

   • Credit card disputes & billing rights ↗ · Consumer Financial Protection Bureau

See it in the studio

The same grounded flow, as a live diagram you can re-route, dim to one layer, or push to its exception path.

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