【How-to】What is interest that is computed on principal and on any interest earned that has not been paid or withdrawn

For example, if you deposit $1,000 in an account that pays 1 percent annual interest, you’d get $10 in interest after a year. Compound interest is interest that you earn on interest. So, in the above example, in year two, you’d earn 1 percent on $1,010, or $10.10 in interest payouts.