CPS stands for “Custom Payment Service”. The CPS classification is typically known as the best rate structure offered by Visa, and CPS requirements are often the “minimum” qualification requirements for more advanced interchange rates. Read all about CPS here. In a nutshell – you have to first qualify for CPS rates before other more advantageous rate structures will apply. The “CPS Retail” category encompasses traditional consumer credit cards, as opposed to rewards/business/purchasing cards. Barring a few exceptions (below), most merchants are able to receive this interchange rate. Read on to see how different types of CPS Retail cards are assessed.