USPS Address Change, Complete USPS Address Change resource center. When you are moving for business or personal reasons you have to make a lot of updates to a lot of your resources in order to keep them up to date. Generally speaking you’ll need to update your credit cards, bank accounts, mailing address and magazines among other things. USPS Address Change, When you’re ready to update your mailing address you can submit your temporary change of address of permanent USPS change of address online for the easiest update.