What happens after you tap your card?

Start with a coffee

It's 8:40 on a Tuesday. You order a flat white, tap your card, and the terminal beeps. A few seconds later you have a cup and you've stopped thinking about it.

Behind that beep, five things happen in sequence, and almost nobody sees any of them. That's a big part of why payments feels more mysterious than it needs to be.

We'll follow the coffee the whole way.

The four parties

Every card payment involves four organizations. Name them once and the rest gets easier:

• The merchant is the coffee shop, and specifically the merchant account it uses to accept cards.
• The acquirer, often called the processor, is the merchant's gateway into the card networks. It's who the shop has a contract with.
• The card network is the rail between banks. It routes messages and sets the rules everyone plays by.
• The issuer is your bank, the one that holds your money and decides whether this purchase is allowed.

Two more sit just offstage: the bank account behind your card, and the merchant's bank account at the end of the chain.

Authorization: the few seconds at the counter

The terminal sends a message: who the merchant is, how much, which card, and whether the card is present. It travels to the acquirer, then to the network, then to your bank.

The issuer checks several things at once. Is the card valid? Is there a fraud signal? Is there enough available credit or balance? Then it answers with an approval code, or a decline code that says why.

The round trip usually takes one or two seconds. Nothing has moved yet. What actually happened is a hold placed on your account for 4.75, plus a promise from your bank that it will pay.

That's the first surprise: at the moment the terminal says approved, no money has gone anywhere.

Capture: the merchant submits the day's sales

Later, often when the shop closes, the terminal or the shop's system sends the day's approved transactions in a batch to the acquirer. This is capture, and it's what turns "your bank said yes" into "the merchant now has a claim to be paid".

A shop can also capture at the time of sale. Either way, the transaction has moved from approved to submitted for payment.

Clearing: the network sorts it out

Overnight, the card network takes all the captured transactions, works out which issuer owes which acquirer, and applies interchange, the fee the merchant's bank pays the issuer for taking on the credit risk. This is clearing. It's bookkeeping between institutions, not a transfer of money.

Settlement: banks move money

Settlement is the actual movement of funds between the issuer's bank and the acquirer's bank, netted across every transaction in the cycle rather than one at a time. Your 4.75 is a rounding error inside a much larger number.

After settlement, the acquirer holds money on the merchant's behalf, minus the fees the merchant agreed to.

Payout: the merchant gets paid

Finally, the acquirer pays the merchant's business bank account on a schedule: daily, weekly, or next business day, depending on the agreement and the merchant's risk profile. That's the payout.

For our coffee shop, the 4.75 sale from Tuesday morning shows up as roughly 4.55 in the business account on Wednesday, with the difference split between interchange, network fees, and the acquirer's fee.

Why "approved" doesn't mean "paid"

Worth remembering, because it explains most of the confusion that follows:

• Authorization, seconds. "The customer's bank said yes." Money has not moved.
• Capture, end of day. "We submitted it for payment." Money has still not moved.
• Clearing, overnight. "The network matched it up and set the fees." Money is being accounted for.
• Settlement, one to three days. "The money left the cardholder's bank." Still not in the merchant's account.
• Payout, on schedule. "The money is in the merchant's account." Now it is paid.

Every question about where the money is turns out to be a question about which of those five steps the transaction is sitting in.

What the merchant actually sees

The shop's dashboard shows the sale within seconds, long before the payout arrives, and it may show an amount before final tips or adjustments. That's why the number at the top of a sales report and the number in the bank account are rarely the same. One is a record of sales. The other is the net result of many sales, minus fees, minus refunds, plus or minus whatever is still in flight.

Three things that surprise people

• Pending is not settled. A pending authorization can still change, because the final amount sometimes isn't known until later.
• Refunds travel the same path in reverse, more slowly. The customer's money goes back on the issuer's timeline, not the merchant's.
• Fees come off the merchant's side. The customer pays 4.75. The merchant receives less. Nobody was overcharged. The difference is the cost of accepting the card.

Where to go next

If you can follow one coffee from tap to payout, you can follow any card payment. The names change, the timing stretches, and the numbers get bigger, but the shape stays the same.