Interest Rates Control What Everything Costs You to Borrow
Bottom line
A 2% rate swing on a $300,000 mortgage adds $400 to your monthly payment.
In this guide
What it is
An interest rate is the price you pay to borrow money, shown as a percentage of what you borrowed.
By the numbers
On a $3,000 credit card balance, a 24% interest rate costs you $720 a year. just for carrying that balance without paying it down.
How it works
A lender hands you money today, and in exchange you pay back the original amount plus a percentage on top. The higher the rate, the more extra you owe on every dollar you borrowed.
The catch
Rates cut both ways. they make borrowing expensive, but they also make saving accounts pay you more. Most people watch their loan rates closely and ignore that their savings account might be paying 0.01% when higher yield options exist.
What to check next
Log into your bank and find the exact interest rate on your savings account and your highest balance debt. write both numbers down.
Your next step
Now put it into practice with your own numbers.
Go deeper with your own numbers — tools, plain-English explanations, and a clear starting point for your specific situation.
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A $3,000 balance at 24% APR costs you $720 in interest if you only pay the minimum for a year.
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