Because an electronic ACH transfer is the primary way to move money to and from Betterment, you will not be able to delete all of your connected bank accounts unless you add at least one new bank account to replace them with. On a web browser: Select “Settings” from the menu and then select “Funding Accounts.” You’ll then be able to add or change your funding accounts. On the mobile app: After logging in, tap the three bars on the top left. Select “Settings” and then select “Funding Accounts.” ...