Yes, savings accounts earn interest, but the amount depends on the rate your bank offers

A savings account builds interest by paying you a percentage of the money you keep in it. The bank takes deposits from all its customers, lends that money out at higher rates, and shares a portion of what it earns back to you as interest. The amount you earn is calculated on your balance and added to your account on a schedule set by the bank—usually daily, monthly, or quarterly.

The rate you earn varies widely. A high-yield savings account at an online bank might pay 4% to 5% annually, while a traditional savings account at a brick-and-mortar bank might pay 0.01% to 0.05%. The difference between these rates is enormous: on $10,000, you would earn roughly $400 to $500 per year at a high-yield rate, or $1 to $5 per year at a traditional rate. The rate also changes over time—banks adjust what they pay based on what the Federal Reserve does with interest rates.

Key Takeaways

  • Interest is calculated as a percentage of your account balance and paid back to you by the bank on a regular schedule, usually monthly or daily.
  • The interest rate you earn depends entirely on which bank you choose and what type of account you open—rates vary from nearly zero to over 5% annually.
  • Interest compounds when the bank adds earned interest back into your account, so your next interest payment is calculated on a larger balance.
  • You can compare rates across banks before opening an account, and you can move your money to a higher-paying account if your current bank's rate drops.

How the interest rate is set and why it changes

Banks decide what interest rate to pay based on what they can earn by lending your money out, minus their operating costs and profit margin. When the Federal Reserve raises its benchmark interest rate, banks have more room to pay depositors more and still make money on loans. When the Fed lowers rates, banks typically lower what they pay you.

This means the rate you see advertised today may not be the rate you earn next month. Banks can change their rates without notice, though they usually do so gradually. If you open a savings account at 4.5% and the Fed cuts rates, your bank might drop you to 4.0% within weeks. Conversely, if rates rise, your bank might not raise your rate as quickly—they benefit from the gap between what they pay you and what they charge borrowers.

Online banks and credit unions tend to pass rate changes to depositors faster than traditional banks, because they have lower overhead and compete more directly on rate. If you want to keep earning the highest available rate, you may need to move your money periodically or shop around annually.

How interest compounds and grows your balance over time

Compound interest means the bank pays interest on your interest. Here is how it works: if you have $10,000 earning 5% annually and the bank compounds monthly, it calculates one-twelfth of 5% (about 0.417%) on your $10,000 and adds roughly $42 to your account. The next month, it calculates interest on $10,042, not $10,000. Over a year, this compounding adds up to more than straightforward 5% would.

The frequency of compounding matters. Daily compounding earns you slightly more than monthly compounding, which earns more than quarterly. Most savings accounts compound daily, which is why the advertised rate (called the APY, or annual percentage yield) already includes the effect of compounding. When a bank says an account earns 5% APY, that is the total you will earn in a year if you do not withdraw money and the rate does not change.

Over longer periods, compounding becomes more noticeable. $10,000 at 5% APY becomes $10,500 after one year, $11,025 after two years, and $12,763 after five years—without you adding a single dollar. If you deposit money regularly, the effect accelerates because each new deposit also starts earning interest when ready.

The difference between APR and APY on savings accounts

Banks use two different terms to describe interest rates, and the difference matters. APR (annual percentage rate) is the straightforward interest rate without compounding. APY (annual percentage yield) includes the effect of compounding. On a savings account, the APY is always higher than the APR because of how often interest is added back in.

For example, a savings account might have an APR of 4.88% but an APY of 5.00%. The difference is small on savings accounts because compounding happens frequently, but it is real money. Always look at the APY when comparing accounts, not the APR, because APY shows what you will actually earn.

What happens to interest if you withdraw money before the end of the period

Most savings accounts have no penalty for withdrawals, and you keep all interest earned up to the day you withdraw. If you have $10,000 earning 5% APY and you withdraw $3,000 on day 15 of the month, you keep the interest earned on all $10,000 for those 15 days, and the remaining $7,000 continues earning interest for the rest of the month.

The exception is a certificate of deposit (CD), which is a different product. CDs lock your money for a set period—three months, one year, five years—and pay a fixed rate. If you withdraw before the term ends, you pay an early withdrawal penalty, usually equal to a few months of interest. Savings accounts do not have this restriction.

Some banks offer money market accounts, which are savings accounts that pay higher interest if you maintain a larger balance or limit withdrawals to a certain number per month. Read the account terms before opening to understand any restrictions.

How to find the highest interest rate for your savings

Interest rates are public information that banks publish on their websites. You can compare rates across multiple banks in minutes by visiting their savings account pages or using a rate comparison tool. The highest rates are almost always at online banks and credit unions, not at traditional banks with physical branches.

When comparing, check three things: the APY (not APR), any minimum balance requirement, and whether the rate is introductory or permanent. Some banks offer a higher rate for the first few months to attract new customers, then drop it. Others maintain competitive rates continuously. Read the fine print to see if there are monthly fees that would eat into your interest earnings.

You do not have to stay with your current bank. You can open a new savings account at a higher-paying bank and transfer your money over. The transfer typically takes three to five business days. Some banks offer switching bonuses—cash payments for opening an account and depositing a minimum amount—which can add to your earnings in the first year.

Why some accounts earn almost no interest

Traditional savings accounts at large banks often pay 0.01% to 0.05% APY because those banks rely on branch networks and brand recognition rather than competing on rate. They assume many customers will not shop around and will accept whatever rate they offer. These accounts are convenient if you use the bank for checking and other services, but they are expensive if earning interest is your goal.

Checking accounts almost never earn interest, or earn so little it rounds to zero. If you want your money to grow, it needs to be in a savings account, money market account, or CD. Some checking accounts offer a small rate on balances above a certain threshold, but this is rare and usually not worth the account fees.

Frequently Asked Questions

Can I move my money to a different bank if my current rate drops?

Yes. You can open a new savings account at any bank and transfer your balance over. The transfer takes three to five business days. Your old account can be closed once the money arrives. There is no penalty for switching, and you keep all interest earned up to the day you withdraw.

What is the difference between a savings account and a money market account?

A money market account usually pays a higher interest rate than a savings account, but may require a larger minimum balance and limit the number of withdrawals you can make per month. If you need frequent access to your money, a savings account is simpler. If you are setting money aside and do not plan to touch it often, a money market account may pay more.

Does interest get taxed?

Yes. Interest earned on savings accounts is taxable income. Banks report interest of $10 or more to the IRS on a 1099-INT form, and you report it on your tax return. The amount of tax you owe depends on your tax bracket. This is one reason high-yield accounts matter—earning 5% instead of 0.05% means more interest to report, but also more money in your pocket after taxes.

What happens to my interest if the bank fails?

Your deposits and interest are protected by the FDIC (Federal Deposit Insurance Corporation) up to $250,000 per account holder per bank. If a bank fails, the FDIC pays you the full balance including all interest earned. This protection applies to savings accounts, checking accounts, and CDs. Credit union deposits are protected by the NCUA up to the same limit.

Is there a minimum balance required to earn interest?

Most high-yield savings accounts have no minimum balance—you earn the advertised rate on every dollar from day one. Some traditional banks require a minimum balance, often $500 to $2,500, to earn any interest at all. Check the account terms before opening. If you cannot meet the minimum, the account will not pay interest and may charge monthly fees.