These three terms get used almost interchangeably in casual conversation, but they're different companies doing different jobs — and knowing which is which makes every other payments conversation easier to follow.
The gateway: the messenger
A payment gateway is the piece that captures the card details at checkout and passes them securely into the payment network — think of it as the messenger between your checkout page and everyone downstream, not the one making approval decisions.
The processor: the middleman doing the work
The payment processor is the technical intermediary that actually routes the transaction between the gateway, the card networks, and the banks involved, handling the back-and-forth of authorization and settlement.
The acquirer: whose bank account the money touches
The acquiring bank is the merchant's own bank in the transaction — the one that actually holds the merchant account and receives the settled funds from the card networks before passing them to the merchant.
Key takeaways
- The gateway captures and transmits payment data — it doesn't make approval decisions.
- The processor is the technical layer moving the transaction between all the other parties.
- The acquirer is the bank that actually holds the merchant's account and receives settled funds.
- A single provider, like an orchestration platform, can bundle these roles — but they're still distinct functions underneath.
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