What you earn depends on the bank and the account type

A savings account earns interest by paying you a percentage of the money you keep in it. The amount you earn depends almost entirely on two things: the Annual Percentage Yield (APY) the bank offers, and how much money sits in the account. A bank offering 4.5% APY will pay you roughly four and a half times more interest than one offering 0.01% APY on the same balance.

The interest rate your bank offers changes constantly — sometimes weekly. Banks that operate only online tend to pay higher rates than banks with physical branches, because they have lower costs to cover. A savings account at a large national bank might earn 0.01% to 0.05% APY right now, while an online bank might offer 4% to 5% APY on the same type of account. The difference between these two is real money in your pocket.

Interest compounds, meaning you earn interest on the interest you already earned. If your account compounds daily (which most do), you get paid a tiny bit every single day, and tomorrow's payment includes interest on today's payment. This compounds to your advantage over months and years, though the effect is small on balances under a few thousand dollars.

Key Takeaways

  • The APY your bank advertises is the only number that matters — it already includes the effect of daily compounding.
  • Online banks typically pay 4% to 5% APY on regular savings accounts, while large national banks pay closer to 0.01% to 0.05%.
  • Interest rates change frequently, so the rate you see today may be different in three months.
  • The actual dollars you earn depend on both the APY and your account balance — a higher balance at the same rate earns proportionally more.
  • Some accounts require a minimum balance to earn the advertised rate, so read the terms before opening.

How to calculate what you will earn

The math is straightforward once you know the APY. Multiply your account balance by the APY, and divide by 365. That gives you the interest you earn in one day. For example, if you have $5,000 in an account earning 4.5% APY, you earn roughly $0.62 per day ($5,000 × 0.045 ÷ 365). Over a year, that's about $225.

Most banks show you this calculation in their account terms or on their website. Some provide a calculator where you enter your balance and see the projected annual earnings. The number you see is an estimate — the actual amount varies slightly depending on how many days are in the month and whether the bank compounds daily or monthly.

The key point: a higher APY makes an enormous difference. That same $5,000 at 0.05% APY (what some large banks offer) earns only about $2.50 per year. The difference between 4.5% and 0.05% is $222.50 per year on that single account. Over five years, it's more than $1,100.

Why different banks pay different rates

Banks pay interest from the money they make by lending out deposits. When the Federal Reserve raises its benchmark interest rate, banks have more room to pay depositors more. When the Fed lowers rates, banks lower what they pay you. This is why rates change so frequently — they follow the Fed's decisions.

Online banks pay more because they don't maintain physical branches, which is expensive. They pass those savings to depositors in the form of higher interest rates. A bank with 500 branches across the country has to pay rent, utilities, and staff at each location. An online bank has one or two data centers and a small customer service team. That cost difference shows up directly in what they pay you.

Some banks also use high interest rates as a way to attract new customers. They may offer a promotional rate for the first few months, then lower it. Always check what the rate will be after any promotional period ends before you move your money.

Accounts that earn more than standard savings

A Money Market Account is a hybrid between a savings account and a checking account. It typically earns a higher interest rate than a regular savings account, though the rate varies by bank. You can write checks or use a debit card, but you're limited to a certain number of withdrawals per month. The higher rate comes with these restrictions.

A Certificate of Deposit (CD) earns a fixed interest rate for a set period — usually three months to five years. The longer you agree to leave your money untouched, the higher the rate. If you withdraw before the term ends, you pay a penalty. CDs currently offer rates comparable to or slightly higher than Money Market Accounts, depending on the bank and the term length.

A regular savings account is the most flexible — you can withdraw money anytime without penalty. That flexibility costs you in interest rate. If you know you won't need the money for several months, a CD or Money Market Account may earn you more. If you might need it suddenly, a savings account is the safer choice.

How interest rates have changed recently

Interest rates on savings accounts were very low from 2020 through early 2022 — many accounts earned less than 0.1% APY. Starting in March 2022, the Federal Reserve began raising its benchmark rate to fight inflation. Banks responded by raising what they pay depositors. By late 2023, online savings accounts were offering 4% to 5% APY, a dramatic jump from the previous years.

These rates are not may provide to stay where they are. If the Fed lowers rates in the future, banks will lower what they pay you. If the Fed raises rates further, banks may raise rates again. The direction of future rates depends on economic conditions, which nobody can predict with certainty.

The lesson: lock in a good rate while it's available. If you find an online bank offering 4.5% APY, moving your money there now means you earn that rate for as long as you keep the account open — even if rates drop later. Rates can only go down from where they are, or stay the same.

What to watch for when comparing banks

The advertised APY is the most important number, but read the fine print. Some banks require a minimum balance to earn the advertised rate — if your balance drops below that threshold, you earn a much lower rate. Others require you to make a certain number of deposits per month. A few require direct deposit of your paycheck.

Check whether the bank is FDIC insured. This means if the bank fails, the government protects your money up to $250,000 per account. Nearly all legitimate banks are FDIC insured, but it's worth confirming. If a bank offers an unusually high rate — say, 10% or 15% — and is not FDIC insured, that's a red flag.

Look at how often the rate changes. Some banks lower their rates frequently as soon as the Fed signals a change. Others hold rates steady longer. If you want stability, ask the bank what their history is. If you want the highest possible rate, you may need to move your money occasionally as rates shift across the banking system.

Frequently Asked Questions

Is the interest I earn taxed?

Yes. Interest income is taxable as regular income. Banks send you a 1099-INT form at the end of the year showing how much interest you earned. You report this on your tax return. The amount of tax you owe depends on your total income and tax bracket, not on the bank.

Why does my bank show a different interest rate than what I calculated?

Banks may compound interest monthly instead of daily, which changes the final amount slightly. They may also round the APY displayed to two decimal places while using a more precise number internally. The difference is usually a few cents per year. If the difference is larger, contact the bank and ask them to explain their calculation.

Can I move my money to a higher-paying bank without losing interest?

Yes. Interest accrues daily, so you earn interest right up until the day you withdraw. When you move to a new bank, you start earning their rate when ready. There's no penalty for switching banks with a savings account. You only pay a penalty if you withdraw early from a CD.

What happens to my interest if I withdraw money mid-month?

You earn interest on the balance you held for each day of the month. If you had $5,000 for 20 days and $2,000 for 10 days, you earn interest on the average of those balances. Most banks calculate this automatically. You don't lose interest for withdrawing — you just earn less because your balance was lower.

Is there a savings account that earns more than 5% APY right now?

Some banks occasionally offer promotional rates above 5% for limited periods or on specific account types. These promotions change frequently. The best way to find current rates is to check comparison websites that update daily, or call banks directly. Rates above 5% are rare and usually come with conditions like a minimum balance or promotional period.