What is a Payment Gateway?

Why do you need a payment gateway?

A payment gateway is necessary to validate a customer’s card details securely, ensuring funds are available for the purchase — so that you get paid. Effectively, a payment gateway is a middle man that ensures the transaction is carried out quickly and securely. 

In the process of validating the card, a payment gateway encrypts sensitive credit card details and then passes the information securely from the customer to the acquiring bank, via the merchant.

However, as a standalone piece of technology, a payment gateway cannot process transactions.  A merchant account is required.

What is a merchant account?

A merchant account is a dedicated bank account that your business must have in order to accept card payments from your customers.  Funds from your customers are settled and held in this account for approval before they are transferred to your business bank account.    

Small businesses can find it difficult to be approved for merchant accounts, due to the amount of information required by banking institutions. Historical financial details — including yearly turnover and average transaction values — are typically required, which a new business that just started simply do not have. 

However, when you sign up for Zeller, you receive a Zeller Transaction Account to make and receive business payments on a daily basis. Funds accepted via Zeller Terminal are settled into your free account nightly, and available for you to spend quickly. This account is set up during the onboarding process — meaning you don't need to visit a bank branch, wait in a phone queue, or send documents via antiquated methods, such as by fax.  

Payment gateway vs payment processor

These terms are often used interchangeably, but refer to slightly different tools. 

A payment processor analyses and then transmits information to an issuing bank, such as the credit card or debit card number that links to a bank account.

A payment gateway, on the other hand, does all of the above — and then authorises the transfer of funds between customer and business.

How does a payment gateway work? 

The steps are as follows.

1. The buyer makes a purchase by tapping, dipping or swiping their credit card or debit card to an EFTPOS terminal.
2. The payment gateway transfers the card details securely to the acquiring bank (the merchant’s bank).
3. The acquiring bank then sends the data to the card network (Visa, MasterCard, EFTPOS or American Express).
4. At this point, the transaction information goes to the payment switch.
5. The payment switch routes the transaction to the issuing bank — the bank that issued the card to the card network. 
6. The issuing bank conducts fraud checks, and ensures that the buyer has adequate funds in their account for the purchase.  
7. The issuing bank approves or rejects the transfer, and transmits the message to the card network and then to the merchant bank. If the payment is authorised, the funds will go from the issuing bank then held in the merchant account until settlement.

It is important to note that credit card payments and debit card payments are treated slightly differently. When a customer pays via credit cards, the funds are placed on hold by the bank and the merchant does not receive payment until the appropriate checks have been conducted. On the other hand, debit card payments may be authorised and settled immediately — as the funds are already available in the customer’s account, ready to be spent. 

Once business wraps up for the day, payment reconciliation occurs. All transactions are cross-checked with the payment gateway statements and the merchant’s account. A batch capture or clearing file for all pending card transactions is completed. At this point, pending funds that had been placed on hold become available to the merchant. 

Choosing the right solution for your business

There are different types of payment gateways available for businesses. Research is key when selecting the payment gateway that best suits your business. It’s important to understand the costs involved, including initial setup costs, transaction fees and admin costs. 

Another factor to consider is how quickly funds are made available to you. Depending on which payment gateway and merchant account provider you select, you could be waiting multiple days for funds to become available for you to spend.

Merchants are often required to piece together multiple products to create a complete business financial solution, adding unnecessary layers of complexity that often result in longer processing times.  Zeller provides an integrated solution to make the entire process quick, simple and secure. 

By providing a free business account and Mastercard with Zeller Terminal, Zeller gives you a simple way to accept, manage and then spend funds. Any payments processed via Zeller Terminal before 9 PM will be available in your Zeller Transaction Account, and able to be spent by 1 AM the next day.