Introducing a new way of banking that saves and invests for you.6 Plus, earn more with two of the highest APYs available — 3.00% APY on Checking, 5.00% APY on Emergency Fund. Available only for US residents. Banking services provided by and Mighty Oak Debit Cards issued by nbkc bank, Member FDIC. As of November 13, 2023, Mighty Oak Checking Annual Percentage Yield (APY) is 3.00% and Emergency Fund