What is Payment Acquiring and Why It Matters for Your Business

Payment acquiring refers to the process by which an acquiring bank or financial institution facilitates card payment transactions on behalf of a merchant.

April 02, 2025

In simple terms, the acquiring bank ensures that when a customer pays with their credit or debit card, the funds are securely processed and transferred from the customer's account to the account of the e-commerce merchant.

So, how does payment acquiring work, and what does it mean for e-commerce merchants?

How Does Payment Acquiring Work?

The payment acquiring process consists of four key steps.

Payment Initiated

The customer commences the payment process by swiping, tapping, or inserting their credit or debit card.

After the cardholder has initiated the transaction, the acquirer receives an authorisation request from the merchant. Online, this request usually arrives through a payment gateway, which captures the card details at checkout and passes them to the acquirer.

Transaction Authorisation

Once the authorisation request has been received, the acquirer collates the transaction information and submits it to the card networks (also called card schemes), such as Visa, Mastercard, American Express, and Discover. The networks do not hold merchant or cardholder accounts themselves; they route messages between the acquirer and the issuer and set the rules both must follow.

Transaction Approval or Decline

The card network then processes the request, clarifying with the issuer whether sufficient funds are available.

The issuer approves or declines the transaction after examining the cardholder's account, then forwarding the status of the transaction back to the acquirer.

Payment Settlement

If sufficient funds are available and the transaction is approved, money is then transferred from the issuing bank to the acquirer, who deposits the money into the merchant account. Authorisation only reserves the funds; the actual movement of money happens later during clearing and settlement, which is why a sale and the payout to the merchant rarely land on the same day. During this stage the acquirer pays the issuer an interchange fee on each transaction, and that fee makes up the largest share of what the merchant is ultimately charged for card acquiring.

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Why Does Payment Acquiring Matter?

Payment acquiring is defined as an integral part of payment processing, allowing businesses to seamlessly accept credit and debit card payments by providing the necessary infrastructure to process transactions.

Acquirers also ensure security, manage chargebacks, facilitate international payments, and guarantee timely settlements.

In practice, acquiring in payments is broader than card swipes. Most acquirers now bundle alternative payment methods such as Apple Pay, PayPal, and account-to-account payments alongside Visa and Mastercard, so a merchant can offer the methods customers in each market expect through a single acquiring relationship.

What's the Difference Between an Acquiring Bank & an Issuing Bank?

The acquiring bank and issuing bank are both important to accept payments, but their roles are very different.

Acquiring Bank

A merchant acquirer refers to a bank or financial institution that represents the business in a transaction. The acquiring bank enables a merchant to collect payments made during credit or debit card transactions.

The merchant acquiring bank receives the money from the issuer and ensures the payment is processed and completed, depositing the money into the correct merchant's business account. That account is the merchant account: without one, a business has no way to receive card funds, which is why every merchant that accepts cards is connected to an acquirer, either directly or through an intermediary.

An acquirer is also responsible for complying with the security standards implemented by the Payment Card Industry Data Security Standards Council (PCI DSS). If the acquiring bank fails to implement the necessary security measures, it will be liable in the event of a data breach or if a cardholder's information is stolen.

Moreover, acquirers carry a financial risk. If a chargeback occurs (when a customer disputes a charge and requests for the transaction to be cancelled or the funds returned), the acquirer is liable for repaying the issuer. Supplying this service carries a substantial cost for merchant acquirers as they require the internal resources to review chargeback requests.

They may offer a line of credit to a business to cover these costs. However, if the business claims bankruptcy or becomes insolvent and is unable to pay, then the acquiring bank must accept the loss.

To reduce this risk, businesses often go through a vetting process before a merchant acquirer decides to represent them, assessing and limiting their financial risk and liability. This merchant underwriting typically covers KYC checks on the company and its owners, processing history, and the industry the business operates in. It is also why some verticals are classed as high-risk and face stricter terms or declined applications.

A merchant acquirer is not always the same entity as the payment processor. The acquirer holds the card scheme licence and the merchant relationship, while a payment processor supplies the technology that switches and settles the transactions, often on behalf of several acquirers. Many merchants also buy acquiring through a Payment Service Provider (PSP), which resells an acquirer's services together with a gateway and onboarding, without holding scheme membership of its own.

Issuing Bank

In comparison, an issuing bank means the institution representing the customer in the transaction. They can take the form of a traditional bank, credit union, or other financial institution. The issuing bank supplies an individual with the debit or credit card they use to initiate a transaction.

As such, they take the risk of issuing credit to an individual. To do so, issuers consider the creditworthiness of an individual based on their credit score and financial history.

Once approved, they issue a card which enables the individual to access a line of credit. The loans offered are usually unsecured (no collateral or security is required to guarantee repayment).

However, the customer's bank can collect interest if the loans are not paid back by their predetermined deadline. If the customer is unable to do so, the issuer becomes liable for the debt and, therefore, responsible for the initial transaction.

Issuing banks also handle chargebacks, serving as the arbitrator and determining whether the customer's request is reasonable.

Choosing a Payment Acquirer

Payment acquiring works by having the acquirer facilitate the payment process and manage the transaction flow. Here are some key considerations to make before choosing a suitable payment acquirer:

  • Customer Support: Choose an acquirer who prioritises accessibility and provides a responsive support system, such as a dedicated account manager, to address payment-related issues.
  • Security: When handling sensitive financial information and transaction data, compliance with PCI DSS and fraud detection systems should be considered.
  • Payment Processing Capabilities: An acquiring bank should support a range of payment methods, from mobile and electronic payments to credit and debit cards.
  • Integration: A seamless integration and service can make buying simpler and frictionless, improving customer experience and allowing businesses to focus on growth.
  • Global Reach: A payment processing system that supports multi-currency transactions is vital for global outreach, helping to efficiently facilitate cross-border payments.
  • Pricing & Fees: The costs of payment acquiring can vary based on a business' needs; choosing a provider with a range of pricing models is beneficial. Ask how the merchant discount rate is built up, since interchange and scheme fees are passed through while the acquirer's own margin is negotiable.

FAQs

Do I Need an Acquiring Bank to Accept Card Payments?

Acquiring banks have several responsibilities that are vital to process payments.

Merchant acquirers provide businesses with the essential infrastructure needed to process credit card transactions and ensure the merchant is compliant with card network regulations.

Can I Switch Acquiring Banks?

Switching banks is possible.

As each business grows, its needs change. Finding and switching to the right acquirer can be easy with a provider that prioritises seamless integration.

How Much Does Payment Acquiring Cost?

Acquiring banks offer several pricing models. In every case the merchant pays a merchant discount rate that combines interchange, card scheme fees, and the acquirer's margin.

One option is a fixed pricing model, merchants are charged a fixed fee regardless of the number of transactions processed.

Some acquiring banks may also offer a variable pricing model, in which merchants are charged a fee per transaction.

How Does a Payment Gateway Relate to Payment Acquiring?

A payment gateway refers to a platform in which the customer's payment data (e.g. credit and debit card details) is securely collected and transmitted, while the acquiring bank facilitates the authorisation and settles the transactions. The gateway is the technology layer; merchant acquiring is the licensed financial service behind it.

Can I Have Multiple Acquiring Banks?

Yes. Multi-acquirer gateways are equipped to connect multiple acquiring banks across the globe.

Is Payment Acquiring Secure?

Implementing a secure payment system is made easy with a capable merchant acquirer.

Payment processors should be PCI DSS compliant, using fraud prevention systems and tokenisation to prevent data breaches and protect sensitive information. Tokenisation replaces the card number with a token, so stored cards for one-click and recurring payments never expose the real card data.

Can Payment Acquiring Handle International Transactions?

Some payment acquirers can process international transactions through multi-currency acquiring, which lets customers pay in their local currency and reduces declined cross-border payments. DECTA, for example, accepts over 50 currencies, helping businesses attract new customers and grow around the world.

Find the Right Acquiring Setup for Your Business

Tell us your payment methods, currencies and volumes, and DECTA will propose an acquiring configuration and pricing that match them.

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