Yes, most savings accounts earn interest, but the amount varies widely

A savings account earns interest — money the bank pays you for letting them hold your deposit. The bank lends your money to other customers and keeps most of the profit, but they share a small portion back to you as interest. This is how a savings account differs from keeping cash in a drawer: your money grows on its own, even if you never add another dollar.

The amount of interest you earn depends on the interest rate the bank offers. Some accounts earn nearly nothing — less than 0.01% per year. Others, particularly online banks, currently offer rates around 4% to 5% per year. The difference between these two is enormous over time. On $1,000, a 0.01% rate earns about 10 cents per year. A 4.5% rate earns about $45 per year on the same $1,000.

Interest rates change constantly because banks set them based on what the Federal Reserve does with its own rates. When the Federal Reserve raises rates, banks usually raise the rates they offer on savings accounts. When the Federal Reserve lowers rates, banks lower theirs too. This means the interest rate you see today may be different in three months.

Key Takeaways

  • All savings accounts earn interest, but the rate varies from nearly zero to around 4% to 5% depending on the bank and current market conditions.
  • Online banks typically offer higher interest rates than brick-and-mortar banks because they have lower operating costs.
  • Interest is usually calculated daily but paid monthly, meaning your balance grows a little bit each day.
  • The interest rate your bank offers can change at any time, so checking rates periodically helps you know whether to move your money.

How interest gets calculated and added to your account

Banks calculate interest using your account balance. The formula is straightforward: your balance multiplied by the interest rate, divided by 365 days. So if you have $5,000 in an account earning 4.5% per year, the bank calculates how much interest you earn each day, then adds it all up at the end of the month.

Most banks pay interest monthly, though some pay quarterly or annually. When interest is paid, it is added directly to your account balance. This means next month, you earn interest not just on your original $5,000, but on the $5,000 plus the interest you just earned. This is called compound interest — your money earns interest, and then that interest earns interest too.

The longer your money sits in the account, the more noticeable compounding becomes. Over one year, $5,000 at 4.5% grows to about $5,225. Over five years, it grows to about $6,200. You did not add any money — the account did the work for you.

Why interest rates differ between banks

Online banks almost always offer higher interest rates than traditional banks with physical branches. This is because online banks do not pay for buildings, staff, or the technology to run ATM networks. They pass those savings to customers through higher rates.

Credit unions, which are member-owned rather than profit-driven, sometimes offer competitive rates too. However, you must be a member to open an account, which usually means living or working in a specific area or belonging to a particular group.

Large national banks like Chase or Bank of America typically offer the lowest rates on savings accounts — sometimes under 0.05% per year. They can afford to pay less because they have brand recognition and convenience. Many people keep accounts there anyway because they already have a checking account or use the bank's ATM network.

The difference between savings accounts and money market accounts

A money market account is a hybrid between a savings account and a checking account. It usually earns interest like a savings account, but it also comes with a debit card or checks so you can withdraw money more easily. The trade-off is that money market accounts often require a higher opening balance — sometimes $2,500 or more — and they may pay slightly lower interest rates than a dedicated savings account.

If you want the highest interest rate and do not need to withdraw money frequently, a regular savings account is usually the better choice. If you want to earn interest but also need quick access to your money for regular spending, a money market account might work better, though you will likely earn less interest.

How to find the current interest rates

Interest rates change constantly, so the rate you see today may not be the rate you get tomorrow. To find current rates, visit the bank's website directly — the rate listed there is what new accounts will receive. Websites like Bankrate, DepositAccounts, and NerdWallet also list rates from many banks in one place, making it easier to compare.

When you compare rates, also check whether there are any conditions attached. Some banks offer a high rate for the first three months, then drop it dramatically. Others offer high rates only if you maintain a minimum balance or set up automatic deposits. Read the account details carefully so you know what you are actually getting.

If you already have a savings account at a bank offering a low rate, you can move your money to a higher-paying bank. This is free to do — you straightforward open a new account at the new bank and transfer your balance over. Many online banks can handle the transfer for you.

What happens to interest if you withdraw money early

Regular savings accounts have no penalty for withdrawing money whenever you want. You can take out $100 or your entire balance, and you keep all the interest you have earned up to that point. The interest you earned stays yours — the bank does not take it back.

However, some accounts called certificates of deposit (CDs) do penalize early withdrawal. A CD is a different product where you agree to leave your money untouched for a set period — three months, one year, five years — in exchange for a higher interest rate. If you withdraw before that time is up, the bank charges a penalty, usually a few months' worth of interest. Regular savings accounts do not work this way.

Frequently Asked Questions

Do I have to pay taxes on the interest I earn?

Yes. Interest is considered income by the IRS. If you earn more than $10 in interest per year, the bank sends you a form called a 1099-INT, and you report that interest on your tax return. The amount is usually small enough that it does not change your taxes much, but it still counts as income.

Can I lose money in a savings account?

No. Your balance can never go down because of the account itself — it can only go down if you withdraw money. The bank guarantees your deposit through FDIC insurance (up to $250,000 per account). Interest rates can drop, meaning you earn less, but you never lose what you put in.

Is it better to keep money in a savings account or under my mattress?

A savings account is better because your money earns interest and stays safe. Money under a mattress earns nothing and can be lost to fire or theft. Even at 0.5% interest, $1,000 grows to $1,005 in a year. That is information programs just for keeping it in a bank.

What if the bank goes out of business?

Your money is protected by FDIC insurance, which covers up to $250,000 per account per bank. If a bank fails, the FDIC pays you back in full. This has happened only a handful of times in recent decades, and depositors have always been protected.

How often should I check my interest rate to see if I should move banks?

Check once or twice a year, or whenever you hear that the Federal Reserve has changed rates. If your current bank is paying 0.5% and you find another bank paying 4%, moving your money makes sense — you would earn eight times more interest. The transfer takes a few days and costs nothing.