What you earn depends on the bank, the account type, and the current rate environment

The interest rate on a savings account is set by the bank, not by any federal rule. Most banks currently offer between 0.01% and 5.35% annual percentage yield (APY) on savings accounts, but the rate you see depends on which bank you choose, whether you use a traditional bank or an online bank, and what the Federal Reserve has done with its benchmark rate recently. A traditional brick-and-mortar bank might pay 0.01% APY while an online bank pays 4.75% APY on the exact same deposit.

The amount you actually earn is calculated by multiplying your balance by the APY, divided by 365 days. If you have $10,000 in an account earning 4.5% APY, you earn roughly $450 per year, or about $1.23 per day. The bank compounds this interest—usually daily or monthly—which means you earn a tiny amount of interest on your interest, though the effect is small on most savings balances.

Key Takeaways

  • Online banks typically pay 10 to 50 times more interest than traditional banks on the same deposit because they have lower overhead costs.
  • The Federal Reserve's benchmark rate directly influences what banks offer; when the Fed raises rates, new accounts pay more, but existing accounts do not automatically increase.
  • High-yield savings accounts (HYSA) are standard savings accounts at online banks—there is no special application or lock-in period, just a different interest rate.
  • Your actual earnings depend on your balance and how long the money stays in the account; moving money in or out changes the calculation.
  • The FDIC insures up to $250,000 per depositor per bank, so the interest rate does not affect how much of your money is protected.

Why online banks pay more than traditional banks

Online banks have no physical branches, no tellers, and no real estate costs. They pass those savings to depositors by offering higher interest rates. A traditional bank might pay 0.01% to 0.05% APY on a savings account; an online bank pays 4% to 5.35% APY on the same type of account. Both are insured by the FDIC up to $250,000, so the protection is identical.

Traditional banks also make money by lending out deposits at a higher rate than they pay you. If a bank pays you 0.01% and lends that money to a mortgage borrower at 6.5%, the bank keeps the difference. Online banks operate on thinner margins and pass more of that spread to savers. The trade-off is that you cannot walk into a branch and speak to a person; you manage everything online or by phone.

How the Federal Reserve rate affects what you earn

The Federal Reserve sets a benchmark interest rate (the federal funds rate) that influences what banks pay on savings. When the Fed raises its rate, banks gradually raise the rates they offer on new deposits. When the Fed cuts rates, banks cut what they pay. This does not happen instantly—banks move at their own pace, and some lag behind others.

If you opened a savings account at 4.5% APY six months ago and the Fed has since cut rates, your rate does not automatically drop. You keep earning 4.5% until the bank decides to lower it, which could be weeks or months later. Conversely, if you open an account today and the Fed raises rates next month, your rate stays the same unless you move your money to a new account with a higher rate. Banks are not required to match each other's rates.

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 typically pays a higher interest rate than a savings account but requires a larger minimum balance (often $2,500 to $10,000) and limits how many withdrawals you can make per month. Some money market accounts come with a debit card or checkbook, which savings accounts do not.

If you need to access your money frequently, a savings account is simpler. If you have a large balance you do not plan to touch, a money market account may pay slightly more. Both are FDIC-insured up to $250,000. The interest rate difference between the two is usually small—often less than 0.5% APY—so the choice usually comes down to whether you need check-writing or frequent withdrawals.

How to calculate what you will earn

The formula is straightforward: (Balance × APY) ÷ 365 = Annual Interest. If you have $25,000 at 4.5% APY, you earn ($25,000 × 0.045) ÷ 365 = $3.08 per day, or about $1,125 per year.

Most banks show you the projected interest in your online dashboard. If your balance changes during the month—you deposit $5,000 or withdraw $2,000—the interest calculation adjusts. Banks typically compound interest daily, meaning they calculate interest on your balance each day and add it to your account, so you earn interest on that interest the next day. Over a year, daily compounding adds a small amount compared to annual compounding, but the difference is real.

If you move money between accounts or withdraw it, the interest stops accruing on that portion. A $10,000 withdrawal stops earning interest immediately; you do not get a pro-rata share of that month's interest unless the bank's terms say otherwise.

Why rates change and how often to check

Banks change rates based on what the Federal Reserve does, what competitors are offering, and how much deposit money they need. During periods when the Fed is raising rates (like 2022 to 2023), online banks raised rates frequently—sometimes weekly. During periods when rates are stable or falling, changes happen less often.

You do not need to check your rate daily, but checking every few months makes sense. If your bank drops its rate significantly and competitors are paying more, moving your money to a higher-paying bank is free and takes a few days. There is no penalty for switching banks or closing a savings account. Some people keep accounts at multiple banks to take advantage of different rates or to stay under the $250,000 FDIC insurance limit.

What happens if rates drop after you open an account

Your rate is not locked in. Banks can lower the rate on existing accounts, though they usually give you notice (often 30 days) before the change takes effect. When rates drop, your earnings drop with them. If you opened an account at 4.5% and the bank lowers it to 3.5%, you earn less money going forward.

You have options: stay and accept the lower rate, move your money to a bank still paying 4.5% or higher, or split your balance between accounts at different banks. There is no penalty for moving money out. Some people set a personal threshold—if my rate drops below 4%, I move to a different bank—and check quarterly to see if they need to act.

Frequently Asked Questions

Can I lose money in a savings account?

No. The FDIC insures deposits up to $250,000, so your principal is protected even if the bank fails. Interest rates can drop, which means you earn less, but you do not lose what you deposited. Inflation can reduce the purchasing power of your money over time, but that is different from losing the deposit itself.

Is a high-yield savings account safe?

Yes, if the bank is FDIC-insured. A high-yield savings account is just a regular savings account at an online bank that pays more interest. Check the bank's website or the FDIC's bank search tool to confirm it is insured. The higher rate does not mean higher risk.

What if I deposit money partway through the month?

Interest accrues from the day the deposit clears, not from the day you initiated the transfer. If you deposit $5,000 on the 15th and the transfer clears on the 17th, you start earning interest on that $5,000 on the 17th. The bank calculates interest daily based on your ending balance each day.

Do I pay taxes on savings account interest?

Yes. Interest earned on a savings account is taxable income. The bank sends you a 1099-INT form at the end of the year if you earned $10 or more in interest. You report this on your tax return. The interest is taxed at your ordinary income tax rate, not at a capital gains rate.

Should I move my money if rates drop?

Only if the difference is meaningful to you. If your bank drops from 4.5% to 3.5% and you have $50,000, you lose about $500 per year in earnings. If you have $5,000, you lose about $50 per year. Moving money takes a few days and is free, so the decision depends on whether the difference is worth your time.