Marcus offers same-day online transfers up to $100,000 which involve a linked external account, though delays can occur from the other bank. For sending larger amounts, you’ll generally need to ...

Ally Bank’s savings account offers a 3.60%APY (annual percentage yield), and its checking account earns 0.10%APY for balances under $15,000 and 0.25%APY for balances of $15,000 or more.