Legal Definition
In a legal context, an interest rate is the percentage charged for borrowing money, representing the cost of capital over a specific period. It is a fundamental concept in finance and contract law, determining the price of credit or debt.
Plain-English Translation
Imagine it as the price tag for borrowing money. If you borrow money, the interest rate tells you how much extra you have to pay back to the lender for using their money. It's the cost of the loan.