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Published: February 25, 2019

3 Things to know about a Payment Gateway


Many credit card processing companies can help you setup your online payment gateway. Choosing the best gateway for your business can help you expand and increase your potential income.

  1. What is a Payment Gateway?

A payment gateway is needed to accept debit or credit cards payments for online merchants and small or big businesses. The gateway manages these transactions by encrypting all the data and sending it to a specific payment portal, bank or front-end processor. A payment gateway accepts, processes, and authorizes all debit and credit card transaction.

  1. How does a Payment Gateway work?

A payment gateway assists communication between a particular website/brick and mortar store, a payment processor, and the credit card issuer (bank) to complete the card holder’s purchase. The most important factor of all payment gateways is security. It is a must that all transactions that happen between the issuing bank and the merchant must be encrypted to secure the customer's confidential bank information.


  1. ↓↑ 6.


  1. ↓↑5. 7.

Payment gateway




  1. The customer makes a debit/credit card payment through the merchant’s credit card reader or online site.
  2. The credit card reader securely communicated with the gateway to provide all pertinent information (credit card number, pin, etc.)
  3. The payment gateway determines which credit card network (Visa, MasterCard, Discover, or American Express) issued the buyer’s card and then routes the transaction information to the the bank that issued the buyer’s credit card (thus called issuing bank).
  4. The issuing bank applies their fraud detection procedures and confirms the buyer has sufficient credit available (or money in their account if it is a debit card) to make the purchase. It then approves (or rejects) the transaction and lets the payment gateway know.
  5. The payment gateway communicates the
  6. The issuing bank approves (or rejects) the transaction and sends this information back through the credit card network to the merchant bank and the payment gateway.

7.Pushes the transaction information to the acquiring bank (the merchant bank or acquirer)

8. Although it only takes a few seconds to process each transaction, many steps are done within that very short period. Every time a customer is routed to a protected payment page and makes a purchase, all bank information and transaction details are encrypted and then transferred to their designated payment processors via the gateway.

9. A payment processor contacts the bank that issued the credit card and gets feedback in a message form if it’s approved or declined. The feedback is afterward transferred to the payment gateway which transacts with the website. The final step is that information is interpreted, and a valid response is created. The merchant will only process the order if it’s approved.

When it comes to the way we buy or shop things, the internet and e-commerce have transformed it over the years. Well, not all types of business need a payment gateway. But, if you are in the e-commerce industry, obviously, you need one. It may seem confusing at first, but they are actually not that complicated. It doesn't just work as a credit card transaction processor but is also responsible for the features that secure and protect you and your customers from any theft and fraud.

For more information, call us now! (800) 644-3909 or send us an email to info@agapay.gives

AGAPAY - Transactions that give

Agapay was founded on the idea that payment processing should be ethical and give back to the community. In pricing, structure and service, we will always do our best to give the most value and maximize service.
Agapay is a Registered Partner/ISO of Elavon, Inc. Georgia [a wholly owned subsidiary of U.S. Bancorp, Minneapolis, MN]
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