Ans: The process of linking My Capital One account is a bit different for both Mobile and PC. To know they work, follow the steps written below: Mobile Tap on the avatar icon located at the top left corner of the screen. Tap on the Settings Tap on Linked Accounts Tap on Link another account and search for Capital One Enter your Capital One online banking credentials and tap on \\"Sign In\\" Select the accounts you'd like used for Round-Ups Tap on \\"Authorize\\" That's it. Web Click on the avatar icon located at the top right of the screen. Click on Profile & Settings Click on Linked Accounts Click on Link another account and search for Capital One Enter your Capital One online banking credentials and click on \\"Sign In\\" Select the accounts you'd like used for Round-Ups Click on \\"Authorize\\" That's it.