Learn the key difference between APR and APY, including how each affects loans, investments, and interest calculations.

Everybody knows what an interest rate is—it’s effectively a percentage of an amount over a year. If your savings account earns you a 0.05% interest per year (which is a REALLY terrible interest rate, ...

Multiple economic factors influence interest rates. Three types of interest rates, including real, nominal, and effective affect consumers' borrowing and investment choices. The nominal interest ...

Knowing your effective tax rate can help you understand how well you’ve been managing your tax situation throughout the year. Your effective tax rate is different from your tax bracket.

The formula for simple interest requires your initial principal balance, annual interest rate, and time in years. Say you put a sum of $800 into a savings vehicle with a 5% annual simple interest ...