Account checks


An ACCOUNTCHECK request allows a card to be validated by checking the cardholder’s first line of address, the cardholder’s postcode and the security code, to ensure the details entered by the customer are valid. Click here to learn more about the checks performed.



In order to reduce fraud, Visa has mandated that all merchants with a Merchant Category Code (MCC) of 6012 are required to send additional fields in AUTH and ACCOUNTCHECK requests. Click here for further information.


Failure to submit these fields will result in a “60025” (Invalid request) error being returned in the response.


Update your payment form

You can update your payment form to instruct our JavaScript library to process an Account check prior to performing a standard transaction. This is done by specifying custom requestTypes, as shown in the example below:

  <div id="st-notification-frame"></div>
  <form id="st-form" action="" method="POST">
    <div id="st-card-number" class="st-card-number"></div>
    <div id="st-expiration-date" class="st-expiration-date"></div>
    <div id="st-security-code" class="st-security-code"></div>
    <button type="submit" id="st-form__submit" class="st-form__submit">
      Pay securely
 <script src=<DOMAIN>/js/v2/st.js></script>
  (function() {
   var st = SecureTrading({  

Replace <DOMAIN> with a supported domain. Click here for a full list.