Yes, most savings accounts earn interest, but the rate and how often it compounds varies by bank
A savings account earns interest when the bank pays you a percentage of the money you keep deposited. The bank uses your deposits to lend to other customers and invests the money itself—your interest is a share of what they make. The amount you earn depends on three things: how much money sits in the account, what interest rate the bank offers, and how often the interest gets added to your balance.
Not every savings account earns the same rate. A traditional savings account at a large bank might pay 0.01% annually, meaning you earn almost nothing. A high-yield savings account at an online bank might pay 4% to 5% annually. The difference between these two is real money over time. On $10,000, one year at 0.01% earns $1. The same $10,000 at 4.5% earns $450. Banks set their own rates based on what the Federal Reserve does with interest rates, how much competition they face, and their own business strategy.
Key Takeaways
- Interest rates on savings accounts range from under 0.01% at large traditional banks to 4% to 5% at online banks, and these rates change over time.
- Interest compounds, meaning you earn interest on your interest—the more often it compounds, the more you make, though the difference is usually small.
- Your bank must tell you the Annual Percentage Yield (APY), which shows the real rate you'll earn including compounding, so you can compare accounts fairly.
- The interest you earn counts as taxable income, and your bank will send you a Form 1099-INT at tax time if you earned $10 or more in interest.
How interest compounds and why it matters
Interest compounds when the bank adds earned interest to your account balance, and then you earn interest on that new, larger balance. If you deposit $1,000 at 4% annual interest compounded monthly, the bank divides the annual rate by 12 and adds roughly $3.33 to your account each month. The next month, you earn interest on $1,003.33, not just the original $1,000. Over a year, this compounding adds up.
The difference between daily, monthly, and annual compounding is real but usually small on typical balances. On $5,000 at 4% annual interest, daily compounding earns about $204 over a year, while monthly compounding earns about $203. The gap widens with larger balances and higher rates, but for most people with under $50,000 in savings, the compounding frequency matters less than the interest rate itself. What matters far more is choosing a bank that pays 4% instead of 0.01%.
What the Annual Percentage Yield (APY) tells you
Banks must display the Annual Percentage Yield, or APY, on every savings account. The APY is the real rate you'll earn in a year, including the effect of compounding. It is different from the interest rate alone because it accounts for how often interest gets added to your balance. When you compare two savings accounts, always compare the APY, not the interest rate, because APY is the honest number.
The APY also assumes you do not withdraw money during the year and that the rate stays the same. In reality, banks change their rates frequently—sometimes weekly. If a bank advertises 4.5% APY today, that rate might drop to 3.8% next month if the Federal Reserve lowers rates. Your existing balance earns whatever rate was in effect when you opened the account, but new deposits earn the new rate. Always check the current APY before you move money, because rates change constantly.
When banks change interest rates and how it affects you
Banks raise and lower savings account rates based on what the Federal Reserve does with its benchmark interest rate. When the Fed raises rates, banks usually raise savings rates within days or weeks to compete for deposits. When the Fed cuts rates, banks cut savings rates even faster—sometimes within hours. This means the 4.5% you saw advertised last month might be 3.8% today.
Your existing balance is not locked into the old rate. Most savings accounts have variable rates, meaning the rate you earn changes whenever the bank changes it. Some banks offer promotional rates that are may provide for a set period—usually three to six months—and then drop to a lower standard rate. Read the fine print before you move money, because a 5% promotional rate that drops to 0.5% after six months is not the same as a 4% rate that stays at 4%.
How interest is taxed and what you need to report
Interest you earn on a savings account is taxable income. You owe federal income tax on it, and depending on your state, you may owe state income tax too. Your bank reports the interest to the IRS on a Form 1099-INT if you earned $10 or more in a calendar year. You receive a copy in January or February, and you report that amount on your tax return.
The tax you owe depends on your total income and tax bracket. If you earned $200 in interest and you are in the 22% tax bracket, you owe roughly $44 in federal tax on that interest. If you are in the 12% bracket, you owe roughly $24. This is why the difference between a 0.01% account and a 4% account matters—not only do you earn more, but you also have more to report and pay tax on. Keep your Form 1099-INT with your tax records.
Minimum balances and fees that reduce what you earn
Some savings accounts require a minimum balance to earn the advertised interest rate. If you keep less than the minimum, the bank pays you a lower rate or no interest at all. Other accounts charge monthly maintenance fees that eat into your interest earnings. A $5 monthly fee on an account earning $10 per year in interest means you actually lose money.
Before you open a savings account, check three things: the APY, the minimum balance requirement, and whether there are monthly fees. Many online banks have no minimum balance and no monthly fees, which makes them better than traditional banks even if the APY is slightly lower. A $0 fee account at 4% beats a $5 fee account at 4.5% if you have a small balance.
How much you can realistically earn on different account balances
The amount of interest you earn depends entirely on how much money you keep in the account and what rate the bank pays. Here is what one year of interest looks like at different rates and balances, assuming the rate does not change:
| Account Balance | At 0.01% APY | At 2% APY | At 4.5% APY |
|---|---|---|---|
| $1,000 | $0.10 | $20 | $45 |
| $5,000 | $0.50 | $100 | $225 |
| $10,000 | $1 | $200 | $450 |
| $25,000 | $2.50 | $500 | $1,125 |
These numbers assume the rate stays the same for a full year and you do not add or withdraw money. In practice, rates change, and you may deposit or withdraw during the year. The point is to show why the bank you choose matters. Moving $10,000 from a 0.01% account to a 4.5% account means earning $449 more per year—that is real money that stays in your account and compounds.
Frequently Asked Questions
Can I lose money in a savings account?
No. The bank cannot take money from your account without your permission. Your balance can only go down if you withdraw money or if fees are charged. The interest you earn is always added to your balance, never subtracted. Your deposits are also insured up to $250,000 per account by the FDIC, so even if the bank fails, your money is protected.
Why do online banks pay more interest than big banks?
Online banks have lower overhead costs because they do not operate physical branches. They pass those savings to customers by paying higher interest rates on savings accounts. Big banks with thousands of branches have higher costs and less incentive to compete on interest rates because they have existing customers who are unlikely to leave. The trade-off is that online banks offer fewer services and no in-person support.
What happens to my interest if I withdraw money mid-year?
You earn interest only on the money that was in the account during the time it was there. If you deposit $5,000 in January and withdraw $2,000 in June, you earn interest on $5,000 for six months and $3,000 for the remaining six months. The bank calculates this automatically. Some accounts penalize you for withdrawals, but most savings accounts do not—you can withdraw anytime without losing interest already earned.
Is there a limit to how much interest I can earn?
No limit exists on how much interest you can earn. The more money you keep in the account and the higher the rate, the more interest you make. There is no cap. However, the FDIC insures only up to $250,000 per account, so if you have more than that, consider opening accounts at different banks to keep all your money insured.
Do I have to report interest under $10?
No. The bank reports interest to the IRS only if you earned $10 or more in a calendar year. However, you still owe tax on any interest you earned, even if it is under $10 and the bank does not report it. Keep track of your interest earnings and report them on your tax return.