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

The interest you earn on a savings account is set by your bank and changes based on what the Federal Reserve does with its benchmark rate. Right now, savings accounts at online banks typically pay between 4.00% and 5.35% annual percentage yield (APY), while brick-and-mortar banks often pay 0.01% to 0.50%. The difference is real money: on $10,000, you might earn $400 to $500 per year at an online bank versus $1 to $50 at a traditional bank.

Your actual earnings depend on three things: the APY the bank advertises, how much money sits in the account, and how long it stays there. Banks calculate interest daily but usually credit it monthly. If you deposit $5,000 at 4.50% APY, you earn roughly $225 per year, or about $18.75 per month—though the exact amount shifts slightly as the balance changes.

The rate your bank pays is not locked in. Banks raise and lower rates based on what the Federal Reserve does and what competing banks offer. When the Fed raises its benchmark rate, banks typically raise savings rates within weeks. When the Fed cuts rates, banks cut savings rates more slowly, so there are brief windows where rates are unusually good.

Key Takeaways

  • Online banks currently pay 4.00% to 5.35% APY on savings accounts, while traditional banks typically pay under 1%, creating a significant difference in what you earn.
  • Interest is calculated daily but credited monthly, so your balance fluctuates slightly as deposits and withdrawals change the daily calculation.
  • Banks change their rates without notice, so a rate that is competitive today may fall behind within months as the market shifts.
  • The amount you earn is straightforward the APY multiplied by your balance, divided by 365 days—a $10,000 balance at 4.50% earns about $450 per year.
  • High-yield savings accounts and money market accounts at the same bank often pay the same rate, so the account type matters less than which bank you choose.

How banks calculate what you earn each month

Banks use a formula called daily compounding. Each day, they calculate interest on your current balance, then add that tiny amount to your account. At the end of the month, all those daily additions are credited as one deposit.

Here is what that looks like in practice. If you have $10,000 in an account paying 4.50% APY, the bank divides 4.50% by 365 days to get a daily rate of about 0.0123%. On day one, you earn roughly $1.23. On day two, you earn interest on $10,001.23, so you earn slightly more. By the end of 30 days, you have earned about $37.50, which appears in your account as a single deposit.

The math is straightforward if you want to estimate: multiply your balance by the APY, then divide by 12 for a rough monthly figure. A $25,000 balance at 4.75% APY earns about $99 per month. A $50,000 balance at the same rate earns about $198 per month. The bank's calculation is slightly more precise because it accounts for the exact number of days in each month and daily balance changes, but your estimate will be close.

Why the same bank offers different rates on different accounts

A bank might pay 4.50% on a high-yield savings account but only 0.05% on a regular savings account, even though the money sits in the same institution. The difference is not about how the bank uses the money—it is about competition and account features.

High-yield savings accounts have fewer perks: no debit card, no check-writing, sometimes higher minimum balances. Because the bank saves money on those features, it passes some savings to you as a higher rate. Regular savings accounts come with a debit card and easier access, so the bank pays less interest to offset those costs.

Money market accounts sometimes pay slightly higher rates than high-yield savings accounts at the same bank, but the difference is usually small—often less than 0.25%. The trade-off is that money market accounts sometimes limit how many withdrawals you can make per month, though that rule is less common now than it was before 2020.

How to find out what your current bank is paying

Log into your online banking portal or call the customer service number on the back of your card. Ask for the current APY on your specific account. Do not assume it is the rate advertised on the bank's website—that rate applies to new accounts, and existing customers sometimes earn less.

Write down the rate and the date you asked. Banks are required to disclose APY in writing, usually in your monthly statement or in a document called a "Truth in Savings" disclosure. If you cannot find it online, request it by phone or email and ask for written confirmation.

Compare that rate to what online banks are currently paying. Sites like Bankrate, DepositAccounts, and the Federal Reserve's own rate tracker show current rates across hundreds of banks. If your bank is paying significantly less—more than 1% below the current market rate—moving your money to a higher-paying bank is worth considering, especially if you have a large balance.

When rates change and what that means for your money

The Federal Reserve sets a benchmark rate called the federal funds rate, which influences what banks pay on savings. When the Fed raises its rate, banks typically raise savings rates within one to three weeks. When the Fed cuts its rate, banks cut savings rates more slowly—sometimes taking a month or longer—which creates brief windows where rates are unusually good.

Your bank can change your rate at any time without your permission, though they must notify you in advance (usually 30 days). You will see the new rate in your monthly statement or receive a separate notice. The rate change applies only to future interest—it does not affect money you have already earned.

If you lock in a rate at a high-yield savings account right now and the Fed cuts rates next month, your rate stays the same. You do not get a may provide rate for a set period the way you do with a certificate of deposit (CD), but you also do not have to wait for your money to mature. You can move it to another bank at any time if a better rate appears elsewhere.

The difference between APY and interest rate

APY (annual percentage yield) is what the bank advertises and what you should use to compare accounts. It includes the effect of daily compounding, so it shows the true amount you will earn over a year.

Interest rate (sometimes called APR or annual percentage rate) is the base rate before compounding is factored in. It is always slightly lower than the APY. For example, a bank might advertise 4.50% APY, which is based on an interest rate of about 4.39%. The difference is small but real, and APY is always the number that matters for your actual earnings.

Banks are required to show you the APY prominently when you open an account or check your rate. If you see only an interest rate, ask for the APY. That is the only number you need to calculate what you will actually earn.

Frequently Asked Questions

Does interest compound monthly or daily?

Interest compounds daily, meaning the bank calculates interest on your balance every single day and adds it to your account. However, the bank credits that compounded interest to your account once per month, usually on the last day of the month. So you see one deposit per month, but the calculation behind it is daily.

If I move money between banks, do I lose the interest I earned?

No. Interest you have already earned belongs to you and stays in your account. When you transfer money to a new bank, the interest comes with it. You only lose future interest if you move the money—the new bank starts calculating interest from the day the money arrives.

Why do some banks pay almost nothing on savings?

Traditional banks with physical branches have higher costs—rent, staff, ATM networks—so they pay less interest to offset those expenses. Online banks have no branches, so they pass those savings to customers as higher rates. The trade-off is that online banks offer fewer in-person services.

Can I earn interest on money I just deposited?

Yes, but the timing depends on when the deposit clears. If you deposit money on a Monday and it clears the same day, the bank starts calculating interest that day. If it takes two business days to clear, interest starts on day three. Ask your bank how long deposits typically take to clear.

What happens to my interest if the bank fails?

Your interest is protected the same way your principal is. The Federal Deposit Insurance Corporation (FDIC) insures up to $250,000 per account holder per bank, including all interest earned. If a bank fails, you get your full balance plus all interest accrued up to the failure date.