A savings account holds money you are not spending right now and pays you a small amount of interest for letting the bank use it
The main purpose of a savings account is to separate money you need to keep from money you need to spend. When you put money in a savings account, the bank lends that money to other customers and businesses, and pays you interest — a percentage of your balance — as a thank-you for letting them use it. That interest is usually small, but it grows over time without you doing anything.
A savings account is not the same as a checking account. A checking account is built for moving money in and out constantly — paying bills, getting paid, buying things. A savings account is built for money that sits still. The bank rewards that by paying interest and often by charging you no monthly fee, or a lower fee than a checking account.
The second purpose is protection. Money in a savings account at a bank insured by the FDIC (Federal Deposit Insurance Corporation) is protected up to $250,000 if the bank fails. Money under your mattress has no protection at all. Money in a savings account also earns interest while it waits, which money under a mattress does not.
Key Takeaways
- A savings account separates money you are keeping from money you are spending, and the bank pays you interest on the balance.
- Interest rates on savings accounts vary by bank and change over time, so comparing rates before opening an account can mean the difference between earning $5 and $50 per year on the same $1,000.
- FDIC insurance protects your money up to $250,000 if the bank fails, which is a protection you do not get by keeping cash at home.
- You can usually withdraw money from a savings account whenever you need it, though some accounts limit how many withdrawals you can make per month without a fee.
How interest works in a savings account
When you deposit money into a savings account, the bank uses that money to lend to other customers — for mortgages, car loans, credit cards, and business loans. The bank keeps some of the interest those borrowers pay, and gives you a portion of it. That portion is your interest rate, usually shown as an annual percentage rate, or APY.
If you have $1,000 in a savings account earning 4.5% APY, the bank will pay you about $45 in interest over one year, assuming you do not add or withdraw money. If the rate is 0.01% APY, you earn about 10 cents. The difference between a high-rate account and a low-rate account on the same $1,000 is real money — the difference between $45 and 10 cents is $44.90 you could have earned by choosing differently.
Interest rates change. When the Federal Reserve raises or lowers its benchmark rate, banks adjust what they pay on savings accounts. A rate that is 4.5% today might be 3.5% next year, or 5.5%. This is why checking the current rate before you open an account matters more than the rate you heard about last month.
The difference between a savings account and keeping cash at home
Money in a savings account earns interest. Money in a jar earns nothing. Over five years, $5,000 in a savings account earning 4% APY grows to about $6,083. The same $5,000 in a jar stays $5,000. That $1,083 difference is real.
A savings account also protects your money if something happens to the bank. The FDIC insures deposits up to $250,000 per account holder per bank. If the bank fails, you get your money back. If your house burns down or you are robbed, cash at home is gone. If your savings account is hacked, the bank is responsible for returning the money in most cases.
A savings account also creates a record. You can see every deposit and withdrawal, which helps you track where your money went. Cash at home leaves no record, which makes it harder to budget or prove you had the money if you need to.
When you might use a savings account versus keeping money elsewhere
A savings account works best for money you want to keep safe and earn a small return on, but might need within a few years. This is often called an emergency fund — money for unexpected costs like a car repair or a medical bill. Because you might need it quickly, a savings account is better than a certificate of deposit (CD), which locks your money away for months or years and charges you a penalty if you withdraw early.
A savings account is also useful for saving toward a goal that is a year or two away — a vacation, a car down payment, or moving costs. The interest you earn is a bonus, not the main point. The main point is that the money sits separate from your checking account, so you are less likely to spend it.
If you are saving for something more than five years away, you might explore other options like a CD or an investment account, which can earn more. But for money you want to keep safe, accessible, and earning something, a savings account is the standard choice.
What happens to your money while it sits in a savings account
Your money stays yours. The bank does not own it. You own it, and the bank holds it. You can withdraw it whenever you want, though some accounts limit you to a certain number of withdrawals per month without charging a fee — this limit varies by bank and account type.
While your money sits there, the bank lends it out. The borrowers pay interest on those loans. The bank keeps most of that interest and sends you a portion. That portion is added to your account automatically, usually monthly or daily depending on the bank. You do not have to do anything to earn it.
Your balance grows slowly but steadily, as long as you do not withdraw money faster than interest is added. If you add more money, the interest is calculated on the larger balance. If you withdraw money, the interest is calculated on what remains.
Why banks offer savings accounts if they pay you interest
Banks offer savings accounts because they make more money on the loans they make than they pay you in interest. If you earn 4% APY on $1,000, the bank pays you $40 per year. But the bank lends that $1,000 to a borrower at 7% or 8% or higher, earning $70 or $80 or more. The difference is the bank's profit.
Banks also benefit from having your money on deposit. Deposits are stable funding — money that stays in the bank for months or years. That stability lets the bank plan ahead and lend more confidently. A bank with many deposits can lend more and earn more, so they are willing to pay you interest to keep your money there.
Frequently Asked Questions
Can I lose the money in my savings account?
Not if the bank is FDIC-insured and your balance is under $250,000. If the bank fails, the FDIC returns your money. If you withdraw it yourself, that is your choice. If the bank is hacked, the bank is responsible for returning the money in most cases. You cannot lose money to interest rates changing — your balance never goes down because of interest.
How much interest will I earn?
It depends on the interest rate and how long you leave the money there. A $1,000 balance at 4% APY earns about $40 per year. At 0.5% APY, it earns about $5 per year. Rates change, so the rate you see today may not be the rate next month. Check the current rate at the bank where you want to open an account.
Do I have to keep a minimum balance?
Some savings accounts require a minimum balance to earn interest or to avoid a monthly fee. Others have no minimum. The requirements vary by bank and by account type. When you are comparing accounts, check whether there is a minimum and what happens if your balance falls below it.
Can I withdraw money whenever I want?
Yes, but some accounts limit how many withdrawals you can make per month without a fee. The limit is usually five or six withdrawals per month. If you go over, the bank charges a fee. Check the account rules before you open it if you think you will need to withdraw money frequently.
What is the difference between a savings account and a money market account?
A money market account usually pays a higher interest rate than a savings account, but often requires a larger minimum balance and may limit withdrawals more strictly. Both are FDIC-insured up to $250,000. A savings account is simpler and better for most people starting out.