Discover what interest-on-interest means, how it's calculated, and its impact in bond investing. Learn the difference between simple interest and compound interest strategies.

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.

Compound interest refers to the returns that you earn on interest. The impact of it grows significantly over long time ...