Acquirer vs issuer: what's the difference?

Quick answer: An acquirer helps a business accept card payments and receive the funds. An issuer provides the customer's card and decides whether to approve a payment. The card network connects them, but they serve different sides of the transaction.

A customer taps their card for a coffee. The terminal says ‘Approved’, the barista hands over a flat white and everyone gets on with their day. But the payment hasn't quite finished its journey. Before the money reaches the café, two providers have different jobs to do.

If your business accepts cards, understanding the difference between an acquirer and an issuer makes your merchant statement a lot less mysterious. It also helps you work out who to contact when a payment doesn't go to plan.

What does acquirer mean in payments?

An acquirer, often called a merchant acquirer, is the payments provider that helps your business accept card payments. It connects your business to the card network and arranges for the money to reach your account after a transaction is cleared. It's generally the provider behind your merchant facility.

Think of the acquirer as the payments partner on the business side of the sale. You pay it for card acceptance, usually through a merchant service fee. If a customer disputes a transaction, your acquirer is typically your first point of contact.

Merchant acquiring works much the same way in Australia whether a customer pays at the counter or on your website. For online purchases, a payment gateway securely passes the payment information on for processing.

What is a card issuer?

The issuer is the bank or financial institution that provided the customer with their card. When they pay, the issuer decides whether the transaction should go ahead.

For a debit card, it checks whether enough money is available. For a credit card, it checks the available credit limit. The issuer also looks for signs of fraud before sending its decision back to the terminal or online checkout.

This is why a declined payment isn't necessarily a problem with your terminal. Sometimes it's the customer's issuer making the call.

Acquirer vs issuer: what is the difference?

The easiest way to remember it is this: the acquirer serves the business taking the payment. The issuer serves the customer using the card.

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How does a card payment move between the acquirer and issuer?

Let's follow that coffee purchase. The whole authorisation process typically happens in seconds, but the money moves later.

1. The customer taps their card. The café's terminal passes the payment details to its acquirer, sometimes through a payment processor.
2. The acquirer sends the authorisation request through the card network to the customer's issuer.
3. The issuer approves or declines the payment. Its response travels back to the terminal, where the customer sees the result.
4. Approved transactions are cleared and settled afterwards. The acquirer then pays the café according to its settlement arrangements, less any applicable fees.

That last part matters. ‘Approved’ means the issuer has authorised the payment. It doesn't mean the money is already sitting in your business bank account.

Who pays the fees between acquirers and issuers?

Most businesses don't pay the card issuer directly. Instead, they pay their acquirer a merchant service fee for accepting card payments. The acquirer typically pays an interchange fee to the issuer, while both pay fees to the card network. These costs can feed into what the acquirer charges you.

Your actual fee depends on your merchant agreement. If you're comparing providers, check how fees are calculated rather than relying on the advertised rate alone.

What changed for Australian businesses in October 2026?

From 1 October 2026, the major card networks introduced rules preventing card payment surcharges on the transactions they cover, subject to any exceptions. The Reserve Bank of Australia (RBA) also lowered interchange fee caps for domestic debit and consumer credit card transactions.

Further changes are coming. Large acquirers and designated card networks must begin publishing specified fee information from 30 October 2026. New interchange caps for foreign-issued cards are scheduled for 1 April 2027. More detailed merchant statements are also due to become mandatory from that date.

If you previously added card surcharges, your pricing should already reflect the new rules. It's also worth asking your acquirer whether the lower interchange caps have affected your merchant fees. For the detail, see the RBA's guidance for businesses.

Is one payments provider better than several?

It can be, especially if your business sells both online and face to face. A single acquiring relationship may make reporting easier and give your team one place to turn when you need support. But having everything under one roof isn't automatically better. What matters is whether the setup suits your business and makes reconciliation straightforward.

Card issuing is a separate question. It becomes relevant if your business wants to launch its own card programme. In that case, a provider with both acquiring and issuing capabilities may be worth considering. Most merchants simply need a reliable way to accept payments.

What should you check with your acquirer?

Start with your latest merchant statement. Can you see what you're paying to accept card payments? Do you know when funds are due to reach your account? If not, ask your provider to explain the charges and settlement terms in plain English.

If you used to surcharge, confirm that your checkout and displayed prices reflect the October changes. And if your current fees aren't easy to understand, it may be time to compare your options.

Frequently asked questions

What is a merchant acquirer?

A merchant acquirer is the payments provider that enables a business to accept card payments and receive settlement. It's often simply called the acquirer.

Can a bank be both an acquirer and an issuer?

Yes. The same institution can provide merchant acquiring services to businesses and issue cards to customers. Novatti also holds principal acquiring and issuing licences.

How do you become a card issuer in Australia?

A business may pursue its own card scheme membership or work with an existing principal member through a sponsorship arrangement. The right approach depends on the card programme and the applicable regulatory and scheme requirements.

What is BIN sponsorship?

BIN sponsorship allows a business to operate a card programme using a sponsoring principal member's scheme membership and bank identification number (BIN). The responsibilities of each party depend on the arrangement.

Does Novatti hold Visa and Mastercard licences?

Yes. Novatti received a Visa Principal Issuer Licence in 2019 and Visa and Mastercard Principal Acquiring Licences for Australia and New Zealand in 2021.

How Novatti helps

Novatti helps businesses accept card payments online and face to face. We also support businesses looking to launch card programmes. Because we operate across acquiring and issuing, we can help you explore the payment setup that fits your needs.

Explore our Card Acceptance solution for online payments. If your customers pay at the counter, see In-person Payments. Planning a card programme? Find out more about Card Issuing.

Contact our team to talk through your business payment needs.

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