High-yield requirement: The maximum amount that can earn interest is between $10,000 and $25,000.
If you have more than the maximum to put into a high-yield checking account, you won't be able to increase all your funds at the same rate in the account.
For someone who has savings greater than the account's maximum to receive the higher yield, better banking options exist for getting a higher return, if you're trying to keep your money in liquid assets, says Jeff Bernfeld, a financial adviser at Greenspring Wealth Management in Towson, Md.
"Online banks like Ally and Capital One 360 have no caps, although it's best to remain under the (Federal Deposit Insurance Corp.) limit of $250,000, and have far fewer restrictions than the traditional high-yield checking accounts," Bernfeld says. "But interest rates at online banks may be lower than that of brick-and-mortar financial institutions."