Yes, savings accounts do accrue interest. Every savings account at a federally insured bank or credit union pays interest on your deposited balance, though how much you actually earn depends on the account’s annual percentage yield (APY), how often the bank compounds that interest, your balance, and any fees the bank charges. The national average APY on savings accounts sits around 0.39% as of early 2026, while high-yield accounts at online banks pay 4% to 5% APY on the same type of deposit.
How the Interest Is Calculated
Banks pay interest because they lend and invest the money you deposit. Two numbers describe what you earn. The interest rate is the simple annual rate the bank applies to your balance. The APY is the number that actually matters, because it reflects your total return after compounding.
Compounding is the quiet engine. When a bank compounds interest daily, it calculates a small amount of interest on your balance each day and adds it to your balance before running the next day’s calculation. You start earning interest on yesterday’s interest, not just on your original deposit. Over a year, that snowball pushes the APY slightly above the stated interest rate on any account that compounds more than once a year.1Consumer Financial Protection Bureau. 12 CFR Part 1030 – Appendix A to Part 1030 Annual Percentage Yield Calculation
Most banks compound daily but only credit the accumulated interest to your account monthly or quarterly. Between those crediting dates, interest is accruing in the background but hasn’t shown up in your balance yet. Once it posts, your principal is higher, and the next cycle generates a slightly larger payment.
How the Bank Measures Your Balance
Two methods are common. The daily balance method applies the daily rate to whatever your full balance is on each individual day, so a deposit made on Wednesday starts earning interest Wednesday. The average daily balance method adds up your balance for every day in the statement period, divides by the number of days, and applies the rate to that average. Results are similar when your balance stays stable. The daily balance method rewards mid-cycle deposits a little faster.
What Sets the Rate You Actually Earn
The Federal Reserve’s monetary policy is the biggest force behind savings rates. When the Fed raises its benchmark rate, banks tend to lift savings APYs. When the Fed cuts, your APY usually falls. Savings accounts carry variable rates, so the bank can adjust yours at any time without advance notice. There is no lock-in the way there would be with a certificate of deposit.
The type of bank matters almost as much. Traditional banks with physical branches carry heavy overhead and typically pay lower rates because of it. Online-only banks operate with far less infrastructure and consistently offer APYs several times the national average. A large brick-and-mortar bank might pay 0.01% APY while an online bank pays 4% or more on the same product.
Tiered Rates
Some banks pay different APYs at different balance levels. A bank might pay 0.05% on balances up to $25,000 and 1.00% on balances from $25,000 to $100,000. Tiered accounts sometimes come with conditions, like a minimum daily balance or a required number of monthly transactions. Read the terms before chasing a top-tier rate you may not consistently qualify for.
Your Balance
The same APY earns very different dollar amounts on different balances. At 4% APY, $1,000 earns about $40 over a year, while $50,000 earns roughly $2,000. The rate gap between banks also matters more as your balance grows. The difference between 0.01% and 4% APY is about $20 a year on $500, and close to $2,000 a year on $50,000.
Fees That Cut Into What You Earn
Interest is only useful if fees don’t erase it. Monthly maintenance fees are the most common problem, typically running $5 to $15 at banks that charge them. If your account earns $8 in interest for the month but the bank takes $12 in maintenance, you are losing ground just by keeping the account open. Compare the APY against the full fee schedule, not the headline rate.
Paper statement fees are another quiet drain, usually $1 to $5 a month. Switching to electronic statements eliminates that charge at nearly every institution. Some banks also charge for excess withdrawals, in the range of $5 to $15 per transaction over the bank’s limit. Once you know they exist, these fees are easy to sidestep.
Many online banks have dropped maintenance fees and minimum balance requirements entirely, which is one reason their effective returns run ahead of traditional banks by even more than the raw rate suggests. Before opening any account, subtract every recurring fee from the projected annual interest to see what you would actually keep.
Taxes on Savings Interest
Interest earned on a savings account is ordinary income to the IRS. You owe federal income tax on it in the year the bank credits it to your account, whether or not you withdraw the money. Credit union “dividends” on share savings accounts are treated the same way despite the name.2Internal Revenue Service. Publication 17 (2025), Your Federal Income Tax
If you earn $10 or more in interest during a calendar year, the bank sends you Form 1099-INT and files a copy with the IRS.3Internal Revenue Service. About Form 1099-INT Interest Income You report the amount on your federal return as part of your total income.
One thing trips people up. If you earn less than $10, you will not receive a 1099-INT, but you still owe tax on that interest. The $10 threshold only triggers the bank’s paperwork obligation. The IRS requires you to report all interest income regardless of the amount and regardless of whether you received a form.4Internal Revenue Service. Topic No. 403, Interest Received Most states with an income tax also tax interest income, so check your state’s rules as well.