But in the era of brick-and-mortar banks offering yields that are much lower than yields at many online banks, this comfort is costing do i make interest leaving money in bank money. But they are passing up on money ingerest not putting it in a high-yield savings account. And generally, online banks have higher annual percentage yields APYs than brick-and-mortar institutions. Seeing is believing. Not having a competitive yield is actually costing you future purchasing power. A on of banks are currently paying 2 percent or more on their savings accounts. And some people are fine with. But Horonzy says he tries to spread the word that keeping a checking account at the big bank down the street and opening up a high-yielding savings account is the best of both worlds.