What makes your savings account earn money

Your savings account earns money through interest, which is a small percentage of your balance that the bank pays you regularly. The bank uses your money to lend to other customers and invests it, and they share a portion of what they make with you as a reward for keeping your money there.

The amount you earn depends on two things: how much money you have in the account and the interest rate the bank offers. A higher interest rate means more money paid to you. A larger balance means that rate applies to a bigger number. Most banks pay interest monthly, though some pay quarterly or annually.

The interest rate your bank offers changes based on what the Federal Reserve does with national interest rates. When the Fed raises rates, banks typically raise what they pay savers. When the Fed lowers rates, banks lower what they pay. This means the rate you earn today may not be the same six months from now.

Key Takeaways

  • Interest is money the bank pays you for keeping your savings there, calculated as a percentage of your balance.
  • Online banks and credit unions typically pay higher interest rates than traditional brick-and-mortar banks.
  • The interest rate you earn can change at any time, so checking your bank's current rate periodically helps you know whether to move your money.
  • Interest earned in a savings account is taxable income, and your bank will send you a tax form (1099-INT) if you earn more than a certain amount.

How interest rates differ between bank types

Not all banks pay the same interest rate. Online banks — banks with no physical branches — typically pay much higher rates than traditional banks because they have lower costs. They don't maintain buildings or employ as many staff, so they pass those savings to customers in the form of better rates.

Credit unions, which are member-owned financial institutions, often pay competitive rates as well. Credit unions are nonprofit, meaning they return profits to members rather than to shareholders, so they may offer better rates than for-profit banks.

Traditional banks with physical locations usually pay lower rates. You may choose to use them anyway if you need in-person service or prefer to deposit cash at a branch, but you will earn less on your savings. The difference can be significant: an online bank might pay 4% to 5% annually while a traditional bank pays 0.01% to 0.5%.

You can compare current rates on websites that track bank offerings, though rates change frequently. Checking once or twice a year helps you know whether your current bank is still competitive.

Understanding annual percentage yield (APY)

Annual Percentage Yield, or APY, is the total amount of interest you will earn in a year, including interest earned on your interest. It is different from the interest rate itself because it accounts for compounding — the process where interest gets added to your balance, and then you earn interest on that new, larger balance.

For example, if you have $1,000 and your bank pays 4% APY, after one year you will have $1,040. If you leave that $1,040 in the account for another year at the same rate, you earn 4% on $1,040, not just the original $1,000. That is compounding at work.

Banks compound interest at different intervals. Some compound daily, some weekly, some monthly. Daily compounding means you earn slightly more than monthly compounding, though the difference is usually small. When comparing banks, look at the APY rather than the interest rate alone, because APY already includes the compounding effect.

How often interest is deposited to your account

Most banks deposit interest to your savings account monthly, though some do it quarterly or annually. When interest is deposited, it becomes part of your balance, so the next interest payment is calculated on the larger amount.

The frequency of deposits does not change how much you earn in a year — the APY is the same whether interest compounds daily or monthly. However, more frequent deposits mean your money starts earning interest on that interest sooner, which compounds slightly faster over many years.

You can check your account statement or your bank's website to see when your last interest deposit occurred and how much it was. This helps you verify that your bank is paying you the rate they promised.

What reduces the interest you earn

Several factors can lower your interest earnings. If you withdraw money from your savings account before the end of the month, some banks calculate interest only on the lowest balance you held that month, not your average balance. This means a large withdrawal near the end of the month can reduce that month's interest payment.

Some savings accounts have minimum balance requirements — you must keep a certain amount in the account or the bank charges a monthly fee. If your balance falls below the minimum, the fee eats into your interest earnings. Online banks and credit unions often have no minimum balance, which is one reason they are popular for people building savings.

Taxes also reduce what you keep. Interest earned is taxable income. If you earn $10 or more in interest during the year, your bank sends you a 1099-INT form that you report on your tax return. The amount you owe in taxes depends on your overall income and tax bracket.

Moving your money to a higher-paying account

If your current bank pays a much lower rate than other banks, moving your savings to a higher-paying account means you earn more without changing your habits. The process is straightforward: open an account at the new bank, then transfer your money from the old account to the new one.

Most banks can transfer money from another bank electronically within one to three business days. You will need your old account number and routing number, which you can find on a check or by logging into your old bank's website. The new bank usually handles the transfer for you.

Before you move, check whether your current bank charges a fee for closing the account or whether there is a penalty for moving money. Most banks do not, but it is worth confirming. Also verify that the new bank's rate is not a promotional rate that will drop after a few months — read the fine print or call to ask how long the current rate is may provide.

Special savings accounts that may earn more

High-yield savings accounts are regular savings accounts offered by online banks and some credit unions that straightforward pay much higher interest rates than traditional banks. There is nothing special about them — they work exactly like a regular savings account, but the bank pays more. These are worth considering if you want your savings to grow faster.

Money market accounts are a hybrid between a savings account and a checking account. They typically pay higher interest than regular savings accounts but may require a larger minimum balance. They also usually come with a debit card or checkbook, so you can access your money more easily than with a regular savings account.

Certificates of Deposit, or CDs, are accounts where you agree to leave your money untouched for a set period — usually three months to five years. In exchange, the bank pays a higher interest rate. If you withdraw the money before the term ends, you pay a penalty. CDs make sense only if you are certain you will not need the money during that time.

Frequently Asked Questions

How much money do I actually earn on a savings account?

It depends on your balance and the interest rate. If you have $5,000 in an account paying 4% APY, you earn about $200 per year, or roughly $17 per month. The same $5,000 in an account paying 0.01% earns about 50 cents per year. The difference between banks is substantial, which is why comparing rates matters.

Can I lose money in a savings account?

No. Your bank cannot take money from your account without your permission. Your balance can only stay the same or grow. However, if inflation is high and your interest rate is low, the purchasing power of your money decreases — meaning your money buys less than it did before — even though the account balance itself does not shrink.

Is interest from a savings account taxed?

Yes. Interest is taxable income. If you earn $10 or more in a calendar year, your bank sends you a 1099-INT form to report on your tax return. The tax you owe depends on your overall income and tax bracket. You may owe nothing if your total income is low enough.

What happens if I withdraw money before interest is paid?

You still receive the interest you earned up to that point. Some banks calculate interest on your lowest balance during the month, so a large withdrawal near the end of the month may reduce that month's interest payment. Check your bank's policy or ask before withdrawing.

Should I move my money to a different bank for a higher rate?

If your current bank pays significantly less than other banks — for example, 0.01% versus 4% — moving your money could earn you substantially more with no additional effort. The transfer takes a few days and is free at most banks. Compare rates at a few banks to see the difference before deciding.