This is a very simple process, you just need to login to Endicia with the account details provided on the Postage Balance page within ShippingEasy.

Here is a quick step-by-step:

1. Click the Postage Balance link in the top right corner of your ShippingEasy account.
2. Locate your Endicia account number and web password in you ShippingEasy account. Note, you may have as many as 2 Endicia accounts (First Class and Expedited), so be sure to access both to confirm that your billing information is up to date.
3. Your account number will be readily visible, to the right of the Endicia logo.
4. Click the blue text Show Passwords to view your web password.
5. Go to Endicia login page and proceed to log in with your account number and web password.
6. Once you are logged into Endicia, go to My Account >> Update Profile >> Payment Method. On the Payment Method page, find options to edit how you are billed for USPS Postage purchases, as well as your billing address. You can edit your card information here and you will then be able to purchase postage!