Published 2026-08-09
APR vs. APY: The One Letter That Tells You Who Is Paying Whom
APR is what borrowing costs you. APY is what saving pays you. They are calculated differently on purpose, and banks quote whichever one looks better — so knowing which is which is the cheapest financial skill you will ever pick up.
Key takeaways
- APR = Annual Percentage Rate. You pay it. It shows up on credit cards, loans and mortgages.
- APY = Annual Percentage Yield. You earn it. It shows up on savings accounts and CDs.
- APY includes compounding. A basic APR does not, which is why the same 5% can mean two different amounts of money.
- On a mortgage, APR also includes the lender's fees — that is why it is usually higher than the advertised interest rate.
The short answer
If the number describes money leaving your pocket, it is an APR. If it describes money arriving, it is an APY. That single rule handles almost every case you will meet.
Banks are not being sneaky by using both. Federal rules require deposit accounts to be advertised with APY and consumer credit to be advertised with APR, precisely so you can compare like with like.
Side by side
The difference is not academic. Compounding means interest that earns its own interest, and over a year that gap is real money on a real balance.
| APR | APY | |
|---|---|---|
| What it measures | The cost of borrowing | The return on saving |
| Who pays | You pay the bank | The bank pays you |
| Includes compounding? | No, it is the simple annual rate | Yes, that is the whole point of it |
| Includes fees? | On a mortgage or loan, yes — origination and points are baked in | No, fees are quoted separately |
| Where you see it | Credit cards, personal loans, auto loans, mortgages | Savings accounts, CDs, money market accounts |
| Better when it is… | Lower | Higher |
Why APY is always the higher-looking number on the same rate
Take a 5% interest rate on a savings account. If the bank pays that interest once a year, you end the year with 5%. If it compounds daily — which most do — each day's interest starts earning interest of its own, and you end the year slightly above 5%. That slightly-above figure is the APY.
This is why comparing one bank's interest rate against another bank's APY tells you nothing. Compare APY against APY, always.
The mortgage version, where APR does something extra
On a mortgage you will see two numbers: the interest rate and the APR. The interest rate is what the money costs. The APR is what the loan costs — the same interest plus the lender's own charges, spread across the life of the loan.
That is why two lenders can advertise an identical rate and not cost the same. The gap between the rate and the APR is roughly how much the cheaper-looking one is charging you to set the loan up.
One trap worth knowing
A credit card's APR is quoted as an annual rate, but interest is charged daily on the balance you carry. Card issuers divide the APR by 365 to get a daily rate and apply it to what you owe.
The practical consequence is simple: if you pay your statement balance in full every month, the APR on your card is a number you never actually pay. If you carry a balance, it is the most expensive number in your financial life.
- Paying in full every month: the APR costs you nothing.
- Carrying a balance: the APR is charged on what is left, every day.
- Cash advances usually start charging interest immediately, with no grace period at all.
Frequently asked questions
Which is better, a high APR or a low APR?
Low. APR is what you pay to borrow, so a lower number always costs you less. APY is the opposite — you want it as high as possible, because it is what the bank pays you.
Why is my mortgage APR higher than the interest rate I was quoted?
Because APR includes the lender's own costs — origination fees and discount points among them — while the interest rate is just the price of the money. If the two numbers are far apart, the lender is charging a lot up front.
Do savings accounts have an APR?
They have an underlying interest rate, but U.S. banks advertise deposit accounts using APY, because APY includes compounding and lets you compare two accounts directly. If a savings ad quotes you a plain interest rate, ask for the APY.
Run the numbers
This guide explains the concept. These put your own figures on it.
- Compound Interest CalculatorSee how your money grows with compound interest — add contributions and compare to the S&P 500's real historical returns.
- Credit Card Payoff CalculatorSee how long paying only the minimum really takes, and how much an extra $50 or $100 a month saves.
Free and no sign-up, on financeinyourpocket.com — our sister site.
Terms used in this guide
- APY
- Annual percentage yield: what a deposit earns in a year with compounding included. Unlike a plain interest rate, it lets you compare accounts directly.
- Regular APR
- The yearly interest rate applied to any balance you carry past the due date, once any promotional period ends. Ranges mean the rate you get depends on your credit profile.
- Compound interest
- Earning a return on the returns you already earned, not just on what you put in. It is why time in the market matters more than the size of the first deposit, and why the curve bends upward rather than running straight.
- Origination fee
- What the lender charges to process and underwrite the loan, usually quoted as a percentage of the amount borrowed. It is already baked into the APR, which is why two lenders can quote the same rate and not cost the same.
Sources
- Consumer Financial Protection Bureau — What is the difference between a mortgage interest rate and an APR?
- Consumer Financial Protection Bureau — Truth in Savings (Regulation DD) — APY disclosure
The content provided on this site is for educational and informational purposes only and does not constitute financial, legal, or tax advice.