How to Test a MasterCard

Before you accept MasterCard payments in your store or online, test a MasterCard to make sure that you can properly process payments for the corporation. MasterCard is an international corporation that is designed to process payments between merchants and the bank that issues the card. To accept a MasterCard from a customer, you must be approved to accept them through MasterCard or through a third-party payment processor such as Google Checkout or PayPal.

Instructions

1

Enter a dollar amount for the transaction. If you are testing a real MasterCard, enter $1 or less. If you are using a test number, enter any value. To test a MasterCard for an online transaction, select your website's "Buy Now" button and checkout.

2

Key a live MasterCard number or a test number into the credit card machine, or enter it into the corresponding field online. MasterCard requires a 16-digit test number that begins with a "5." Three test numbers that you can use are: 5105105105105100, 5555555555554444 or 5431111111111111.

3

Read the results. The test or live MasterCard number will return a result that confirms that the address has been verified, the security code matches and the payment has been authorized. If you use a test number, no money actually moves.