Make a payment on an Old Navy credit card online at OldNavy.Gap.com. The option for making payments and managing credit card accounts is located at the bottom of the home page.
In order to make payments on an Old Navy credit card, cardholders must first establish accounts online. This involves inputting the account number of the card as well as the last four digits of the card holder's Social Security number. After establishing an account, a cardholder can create a user name and password that allows him to log in, view his account balance and pay his bill on subsequent visits.