Enroll in Online & Mobile Banking. Return Home. Let's get started. Please provide the following information to begin your enrollment. Card or Account Number. How does "Save this Online ID" work? Saving your Online ID means you don't have to enter it every time you sign in. Don't save on a public computer. Only save. What would you like the power to do? For you and your family, your business and your community. At Bank of America, our purpose is to help make financial.