Compound interest can help turbocharge your savings and investments, or it can quickly lead to an unruly balance, keeping you stuck in a cycle of debt. Its magic can help you earn more — or owe more.

How to Open a Compound Interest Account A compound interest account is any account that pays you interest on your principal and interest, and not simply on your original deposit. Such an account might ...

Einstein allegedly called compound interest the eighth wonder of the world. Benjamin Franklin defined it more poetically: ...