A savings account holds your money and pays you interest for keeping it there

A savings account is a place where a bank holds your money and pays you a small amount of interest—a percentage of your balance—in return. You deposit cash or transfer money in, the bank lends most of it out to other customers, and you earn a tiny cut of what the bank makes on those loans. The bank also promises to give you your money back whenever you ask for it, though some accounts limit how many times per month you can withdraw.

The money is insured by the Federal Deposit Insurance Corporation (FDIC) up to $250,000 per account holder per bank, so if the bank fails, you do not lose your deposits. Interest rates vary by bank and change over time—they are higher when the Federal Reserve raises its benchmark rate and lower when it drops.

Key Takeaways

  • You deposit money, the bank pays you interest on your balance, and you can withdraw whenever you need it, though some accounts cap monthly withdrawals.
  • The FDIC insures deposits up to $250,000 per person per bank, so your money is protected if the bank fails.
  • Interest rates vary widely between banks and change based on what the Federal Reserve does with its benchmark rate.
  • Monthly fees, minimum balance requirements, and withdrawal limits differ by account type and bank, so comparing terms matters before you open one.
  • Interest compounds—meaning you earn interest on your interest—so the longer money sits, the more it grows, though the growth is usually small.

How interest gets calculated and added to your account

Banks calculate interest based on your balance and the annual percentage yield (APY) they advertise. If you have $1,000 in an account with a 4.5% APY, the bank will pay you roughly $45 per year, though the exact amount depends on how often they compound the interest—daily, monthly, or quarterly.

Compounding means the bank adds interest to your balance, and then calculates next month's interest on the new, larger balance. So you earn interest on your interest. With daily compounding (the most common), the effect is small but real over time. A $10,000 balance at 4.5% APY compounded daily will earn about $461 in the first year, not exactly $450, because of compounding.

Interest is usually added to your account once per month, though some banks do it more or less often. You can see the exact terms and compounding frequency in the account disclosure document the bank gives you before you open the account.

What happens when you deposit and withdraw money

When you deposit cash at a branch or ATM, the money appears in your account almost immediately, though the bank may hold it for a day or two before it is fully available. If you transfer money from another bank, it usually takes one to three business days to arrive, depending on the banks involved and whether it is a weekend or holiday.

Withdrawals work the same way in reverse. You can take cash out at an ATM, request it at a branch, or transfer it to another bank account. ATM withdrawals usually show up in your account right away. Transfers to another bank typically take one to three business days.

Some savings accounts limit you to six withdrawals or transfers per month—a rule that comes from federal banking regulations, though many banks have relaxed it in recent years. Check your account terms to see if a limit applies to yours. Deposits have no limit.

Fees and minimum balance requirements

Many savings accounts charge a monthly maintenance fee if your balance drops below a certain amount—often $300 to $500, though some banks have no minimum at all. A few banks waive the fee if you set up direct deposit or maintain a linked checking account. Others charge the fee no matter what.

Some accounts also charge a fee if you exceed the monthly withdrawal limit, typically $10 to $25 per extra withdrawal. A few banks charge inactivity fees if you do not make a deposit or withdrawal for several months, though this is less common.

Online banks and credit unions tend to have lower or no fees because they have fewer branches and lower overhead costs. Traditional banks with many physical locations often charge more. Before opening an account, read the fee schedule carefully—a high fee can wipe out a year's worth of interest on a small balance.

How banks use your money

When you deposit money in a savings account, the bank does not lock it in a vault. Instead, it lends most of it out to other customers in the form of mortgages, car loans, credit cards, and business loans. The bank keeps a small reserve on hand to cover daily withdrawals, and the rest goes to work.

The bank earns interest on those loans—often 5% to 8% or higher—and pays you a fraction of that as your savings account interest. The difference is the bank's profit. This is why your interest rate is always much lower than the rate someone pays on a mortgage or car loan.

The FDIC requires banks to maintain certain reserves and follow lending rules to stay solvent, so even though your money is lent out, the bank is required to have enough capital to pay you back on demand.

Different types of savings accounts and how they differ

A standard savings account is the most basic type. You deposit money, earn interest, and can withdraw anytime. Interest rates are usually low—often under 1% at traditional banks, though online banks sometimes offer 4% to 5% or higher.

A high-yield savings account (HYSA) is offered mainly by online banks and pays significantly more interest than a standard account—currently 4% to 5% APY at many institutions. The catch is that you cannot withdraw money instantly; transfers to another bank take one to three business days. There is no physical branch, so you manage everything online or by phone.

A money market account is a hybrid between a savings account and a checking account. It usually pays higher interest than a standard savings account but lower than an HYSA, and it comes with a debit card or check-writing ability. It often has a higher minimum balance requirement.

A certificate of deposit (CD) is a different animal entirely. You agree to leave money in the account for a set period—three months, one year, five years—and in return the bank pays you a fixed, higher interest rate. If you withdraw early, you pay a penalty. CDs are useful if you know you will not need the money for a while.

How to track your balance and spot problems

Most banks let you check your balance online, through a mobile app, by phone, or at an ATM. You can also request a paper statement by mail, though most banks have moved to online-only statements to save costs.

Review your statement at least once a month to make sure all deposits and withdrawals are correct and to catch any unauthorized charges or fees you did not expect. If you see a transaction you do not recognize, contact the bank right away. Banks have rules about how long you have to report fraud—usually 60 days—so do not wait.

Keep an eye on your interest rate too. Banks change rates frequently, especially when the Federal Reserve moves its benchmark rate. If your rate drops and you have a large balance, it might be worth moving your money to a bank offering a higher rate.

Frequently Asked Questions

Can I lose money in a savings account?

No, the FDIC insures your deposits up to $250,000, so you cannot lose your principal. However, if inflation rises faster than your interest rate, your money loses purchasing power—meaning it buys less stuff over time. This is not the same as losing money, but it is worth knowing.

How often do banks change interest rates?

Banks can change rates whenever they want, though they usually move them in response to changes by the Federal Reserve. Rates can shift weekly or even daily. Some banks raise rates quickly when the Fed moves up, but lower them slowly when the Fed moves down. Check your bank's current rate regularly.

What is the difference between a savings account and a checking account?

A checking account is for frequent spending—it comes with a debit card and checks—and usually pays no interest. A savings account is for storing money and earning interest, with limits on how often you can withdraw. Some accounts blend both features.

Do I need a minimum balance to open a savings account?

Most banks require an opening deposit—often $25 to $100—but many online banks have no minimum. Some accounts charge a monthly fee if your balance falls below a certain level, while others have no minimum at all. Check the terms before you open.

Is my money safe if I have more than $250,000?

The FDIC insures up to $250,000 per person per bank. If you have more, open accounts at different banks to spread the coverage. You can also open a joint account (insured separately) or a retirement account (also insured separately) at the same bank to increase your coverage.