Yes, money in a savings account earns interest, but the amount depends on the bank's rate and how often it compounds

When you deposit money into a savings account, the bank pays you interest — a percentage of your balance — for letting them use your money. The bank lends that money to other customers and businesses, and shares a portion of what they earn with you. The interest gets added to your account automatically, usually monthly or daily, depending on the bank's terms.

How much interest you actually earn depends on two things: the annual percentage yield (APY) the bank offers, and how often the interest is compounded — meaning how often the bank adds interest to your balance so that future interest is calculated on a larger amount. A bank offering 4.5% APY will pay you more than one offering 0.01% APY, and a bank that compounds daily will pay slightly more than one that compounds monthly.

Key Takeaways

  • Banks pay interest on savings account balances, but the rate varies widely — from less than 0.01% at some large banks to over 4% at online banks and credit unions.
  • Interest compounds, meaning the bank adds interest to your balance, and then calculates next month's interest on the larger total, so your money grows faster over time.
  • The annual percentage yield (APY) is the rate you should compare between banks because it accounts for compounding and shows what you'll actually earn in a year.
  • You can find current rates by visiting bank websites or using rate-comparison tools, since rates change frequently and vary by account type.

How interest rates vary between banks

Different banks offer dramatically different rates on the same type of account. Large national banks often offer rates below 0.05% APY on regular savings accounts, while online banks and credit unions frequently offer rates between 4% and 5% APY. The difference is real money: on a $10,000 balance, a 0.01% rate earns about $1 per year, while a 4.5% rate earns about $450 per year.

Rates change based on what the Federal Reserve does with its benchmark interest rate. When the Fed raises rates, banks typically raise what they pay on savings accounts within weeks or months. When the Fed cuts rates, banks cut their savings rates too, though sometimes more slowly. Your bank's rate today may be different three months from now.

Money market accounts and certificates of deposit (CDs) often pay higher rates than regular savings accounts at the same bank, but they come with restrictions — money market accounts may limit how many withdrawals you can make per month, and CDs lock your money away for a set period (three months, one year, five years, and so on).

How compounding makes your money grow faster

Compounding means the bank adds interest to your account, and then calculates next month's interest on that larger balance. If you start with $1,000 and earn 4% APY, the bank might add about $3.33 the first month (one-twelfth of 4%). The next month, it calculates interest on $1,003.33, not $1,000, so you earn slightly more. Over years, this effect compounds and grows your balance faster than if interest were calculated only on your original deposit.

The more often interest compounds, the more you earn. A bank that compounds daily will pay slightly more than one that compounds monthly, though the difference is small on typical balances. Most banks compound daily or monthly. Some older accounts or banks may compound quarterly or annually, which means you earn less.

You can see the effect of compounding by comparing the stated interest rate (called the annual percentage rate or APR) to the annual percentage yield (APY). The APY is always equal to or higher than the APR because it includes the effect of compounding. When comparing banks, always use the APY, not the APR.

Where to find current interest rates

Banks publish their current rates on their websites, usually on the savings account product page. You can also call the bank directly or visit a branch to ask. Rates change frequently, so a rate you saw last month may no longer be current.

Rate-comparison websites like Bankrate, DepositAccounts, and NerdWallet let you filter by account type and see rates from many banks side by side. These sites update rates regularly, though they may lag by a day or two. Credit unions' rates are sometimes harder to find online — you may need to visit the credit union's website or call directly.

When you open an account, the bank will disclose the APY and compounding frequency in the account agreement or disclosure document. Keep this information so you can track whether your rate changes over time.

What happens to interest if you withdraw money

Interest is calculated on your average daily balance or your ending balance on a specific day, depending on the bank's method. If you withdraw money partway through the month, the interest you earn that month will be lower because your balance was smaller for part of the period. You do not lose interest you have already earned — it stays in your account — but future interest is calculated on whatever balance remains.

Some savings accounts have minimum balance requirements. If your balance falls below the minimum, the bank may charge a monthly fee that can wipe out the interest you earned. Check your account agreement to see whether your account has a minimum balance and what happens if you fall below it.

Interest on savings accounts versus other places to put money

Savings accounts are not the only place money can earn interest. Money market accounts at banks typically pay slightly higher rates than savings accounts. CDs pay higher rates still, but your money is locked away for a set term. High-yield savings accounts (offered by online banks and some credit unions) pay rates comparable to or higher than CDs, with no lock-in period.

Treasury bills, bonds, and other government securities also pay interest and are considered very safe, though they work differently from bank accounts. Stocks and mutual funds do not pay interest in the traditional sense, though they may pay dividends. The tradeoff is that stocks and bonds can lose value, while money in a bank savings account is insured by the FDIC up to $250,000 per account holder per bank.

How to maximize the interest you earn

Shop around before opening an account. A difference of 1% or 2% APY between banks means hundreds of dollars per year on a large balance. Online banks and credit unions tend to offer higher rates than large national banks, though you should compare specific accounts rather than assume.

Keep your money in the account. Interest compounds over time, so leaving money untouched for months or years means more growth. If you need to withdraw money frequently, a regular savings account may be fine, but if you are saving for a goal months or years away, a higher-rate account will earn you more.

Consider a CD if you know you will not need the money for a specific period. CDs typically pay 0.5% to 1.5% more than savings accounts, and the rate is locked in for the term, so you know exactly what you will earn. The tradeoff is that withdrawing early usually means paying a penalty.

Frequently Asked Questions

Do I have to pay taxes on interest I earn?

Yes. Interest is taxable income. Banks send 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 amount of tax you owe depends on your tax bracket and total income.

What if my bank's interest rate drops?

Your existing balance will earn interest at the new rate going forward. You are not locked into the old rate. If the new rate is much lower than other banks offer, you can move your money to a different bank. There is no penalty for switching banks or closing a savings account.

Can I lose money in a savings account?

No, as long as your balance stays under $250,000 and the bank is FDIC-insured. The FDIC guarantees your deposits. Interest rates can go down, so you earn less, but your principal (the money you deposited) is protected. Credit unions have similar protection through the NCUA.

How long does it take for interest to show up in my account?

Most banks add interest monthly, though some add it daily or quarterly. You should see the interest posted to your account within a few days of the compounding date. Check your account agreement or online banking portal to see when your bank compounds interest.

Is there a savings account that earns interest without a minimum balance?

Yes, many online banks and credit unions offer high-yield savings accounts with no minimum balance requirement and no monthly fees. Large national banks are less likely to offer this, but some do. Compare specific accounts rather than banks, since terms vary widely.