Account-to-account payments: money straight from one bank account to another

Two things have to happen: the payer has to authorize the payment at their own bank, and the money has to travel on a rail. In an open banking flow the payer picks their bank at the checkout, authenticates in the bank's own app, approves a prefilled transfer, and comes back to the merchant. The merchant never sees a credential, because the authorization happened inside the bank.

The payment that results is an ordinary credit transfer. That is the part people miss: A2A is not a separate payment system, it is a way of initiating a transfer the banking system already carries. Which rail carries it decides the speed, and in the euro area that rail is increasingly the instant one, described on instant payments in Europe.

Three routes exist in the euro area and they overlap. A SEPA instant credit transfer settles in ten seconds at any hour, which is what makes A2A usable at a checkout at all. Wero, the wallet of the European Payments Initiative, puts a consumer brand and a recognizable flow on top of that rail. Open banking payment initiation under PSD2 gives a third party the right to start the transfer from inside the merchant's checkout, which open banking in Germany covers.

The national schemes that dominate their home markets sit on the same foundation with a decade's head start on user habit. iDEAL, BLIK and Swish each won because the banks agreed on one flow and one brand, which is precisely what Wero is attempting at European scale. For the merchant the practical question is reach: a method that 40 percent of customers cannot use needs a card fallback beside it.

A card payment in Europe costs the merchant interchange, a scheme fee and the acquirer's margin. The interchange fee regulation caps the interchange part at 0.2 percent for consumer debit and 0.3 percent for consumer credit, and the other two layers are uncapped, which card payments in Germany sets out.

An A2A payment replaces that stack with a fee from the initiation provider, often a flat amount per transaction. Worldline puts the saving at up to 80 percent against cards in its own assessment of A2A benefits, and a flat fee behaves very differently from a percentage: it favors high-value baskets heavily and small ones not at all. A merchant with a 20 euro average basket may find a card cheaper than a flat 20 cents, which is a calculation worth doing before the integration.

With an instant transfer the merchant has the money, not a promise of it, and has it within seconds. A card authorization is a promise that settles in one to three business days and can be reversed afterwards. That difference is the strongest argument for A2A in any business where the goods leave the building quickly.

The word to be careful with is final. An instant transfer that has been credited is settled, and the payer cannot unilaterally take it back, but the exact legal moment at which that becomes true is defined by the settlement system, not by the merchant's dashboard. For a high-value sale, that moment is worth knowing precisely.

A card payment comes with a dispute system the merchant did not build and cannot opt out of. The cardholder complains to the issuer, the issuer takes the money back, and the merchant defends itself with evidence. A push payment has none of that machinery. Once an A2A payment is settled, getting it back means asking the merchant, and after that it is a civil claim.

Both sides of that are worth stating plainly. For the merchant, no chargeback means no chargeback fees, no representment work and no fraud liability of the card kind. For the consumer, it means a weaker remedy when the goods never arrive, which is exactly why a card keeps its place for a risky purchase. Where the push payment itself was induced by a scam, the regime is a different one, covered on APP fraud.

A card can be stored and charged again; a push payment by definition needs the payer each time. That gap is what variable recurring payments close in the UK and what Dynamic Recurring Payments aim to close in the SEPA area: a standing consent with limits, under which a provider may pull changing amounts without a fresh authentication every month.

Until that is live and widely reachable, a European subscription business running on A2A has two options. It can ask for a payment each cycle, with SEPA Request-to-Pay as the polite way to ask, or it can keep the SEPA direct debit, which already does unattended collection and has for decades. Most keep the direct debit and add A2A for the first payment.

An account-to-account payment is a transfer of money directly from the payer's bank account to the payee's bank account, with no card network involved. The payer authorizes it at their own bank, usually inside a banking app, and the money travels as a credit transfer, in the euro area increasingly an instant one that arrives in seconds.

The customer chooses to pay by bank, selects their bank, and is taken into that bank's own authentication. The transfer is prefilled with the merchant's account, the amount and a reference, the customer approves it with the method their bank already requires, and the merchant receives a confirmation. On an instant rail the funds arrive before the customer has finished reading the confirmation page.

They remove some risks and add others. The merchant never handles bank credentials and cannot leak them, the payer authenticates at their own bank, and there is no stored card to be stolen. The consumer loses the chargeback as a remedy, so a dispute about goods becomes a conversation with the merchant. Which is safer depends on which risk you are carrying.