What a savings account earns depends on the interest rate your bank offers and how much money you keep in the account

A savings account earns money through interest, which is a percentage of your balance that the bank pays you for letting them use your money. The amount you earn is calculated by multiplying your account balance by the interest rate, then dividing by the number of days in a year. If you have $1,000 in an account earning 4% annual interest, you would earn roughly $40 per year — but the actual amount depends on how often the bank compounds the interest (daily, monthly, or yearly) and whether your balance stays the same.

Interest rates vary widely between banks and account types. A traditional bank might offer 0.01% to 0.5% on a regular savings account, while an online bank or credit union might offer 4% to 5% or higher. The difference matters: $1,000 earning 0.01% makes $0.10 per year, while $1,000 earning 5% makes $50 per year. Rates change frequently and are set by each institution, so you need to check your specific bank's current rate rather than rely on what you saw last month.

Key Takeaways

  • Interest rates on savings accounts range from less than 0.1% at traditional banks to 4% to 5% or higher at online banks and credit unions, and rates change regularly.
  • Your earnings are calculated by multiplying your balance by the annual interest rate, then dividing by 365 (or 366 in a leap year).
  • How often the bank compounds interest — daily, monthly, or yearly — affects how much you actually earn, with daily compounding producing slightly more than yearly.
  • Money market accounts and certificates of deposit (CDs) typically pay higher rates than regular savings accounts, but may have restrictions on withdrawals or require a minimum balance.
  • Your bank is required to disclose the Annual Percentage Yield (APY) before you open an account, which accounts for compounding and shows the true rate you will earn.

How interest rates are set and why they change

Banks set their own interest rates based on what the Federal Reserve does with its benchmark rate. When the Fed raises rates, banks usually raise savings rates too — but not always by the same amount, and not always right away. Online banks tend to raise rates faster than traditional banks because they have lower overhead costs and compete more aggressively for deposits.

Rates also depend on how much money you keep in the account. Some banks offer tiered rates: a lower rate on the first $10,000, a higher rate on balances above that. A few banks offer promotional rates for new customers that drop after a set period. Always check what rate applies to your specific balance and whether it is temporary.

The difference between APR and APY

Banks are required to show you the Annual Percentage Yield (APY), not just the interest rate. APY accounts for how often the bank compounds your interest — meaning how often it adds the interest you earned back into your account so you earn interest on that interest too. If a bank compounds daily, you earn slightly more than if it compounds yearly, even if the stated rate is the same.

For example, $10,000 at 4% compounded daily earns about $408 per year, while $10,000 at 4% compounded yearly earns exactly $400. The difference grows larger with bigger balances and higher rates. The APY is the number that matters because it shows you the actual return you will receive.

How to calculate what you will earn

To estimate your earnings, multiply your balance by the APY and divide by 12 for a monthly estimate. If you have $5,000 in an account earning 4.5% APY, you would earn roughly $187.50 per year, or about $15.63 per month. This is an approximation because your balance may change throughout the month, and the bank calculates interest daily but may only credit it monthly.

Most banks show your interest earnings in your account statement each month. You can also log into your online banking portal and look for a section labeled "Interest Earned" or "Interest Paid." If your bank does not show this clearly, call customer service and ask what you earned in the last month — they can tell you the exact amount.

Savings accounts versus other account types

A regular savings account is the most basic option, but it is not always the best earner. A money market account typically pays a higher rate than a savings account but may limit how many withdrawals you can make per month. A certificate of deposit (CD) locks your money away for a set period — three months, six months, one year, or longer — and pays a fixed rate that is usually higher than a savings account. If you withdraw early, you pay a penalty.

High-yield savings accounts are regular savings accounts offered by online banks or credit unions that simply pay much higher rates than traditional banks. There is no catch — they just have lower costs. The tradeoff is that you may not have a physical branch to visit, though most offer phone and online support.

What happens to your interest if you withdraw money

Interest is calculated on your daily balance, so if you withdraw money mid-month, you earn interest only on the amount you had before the withdrawal. If you had $5,000 for 15 days and $3,000 for 15 days in a month, the bank calculates interest on both balances for the days you held them. This means frequent withdrawals reduce your earnings because your average balance is lower.

Some banks have minimum balance requirements and will charge a fee or close your account if you drop below it. Others have no minimum. Check your account agreement to see whether your bank penalizes low balances or frequent activity.

Taxes on savings account interest

Interest you earn on a savings account is taxable income. Your bank will send you a Form 1099-INT at the end of the year if you earned $10 or more in interest. You report this amount on your tax return. The tax you owe depends on your overall income and tax bracket — the interest is added to your other income and taxed at your normal rate.

This means that while a 4.5% savings account sounds good, the after-tax return is lower. If you are in the 22% tax bracket, a 4.5% return becomes roughly 3.5% after taxes. This is still better than keeping money in a non-interest-bearing account, but it is worth understanding when comparing your options.

Frequently Asked Questions

How often does the bank add interest to my account?

Banks calculate interest daily but credit it monthly, quarterly, or yearly depending on the account. Monthly is most common. You can check your account statement or call your bank to see how often interest is posted to your specific account.

Can I lose money in a savings account?

No. Your balance cannot go down from interest calculations. You only lose money if you withdraw it, if the bank charges fees that exceed your interest earnings, or if you close the account early and owe a penalty (which applies to CDs, not regular savings accounts).

Why does my bank pay almost no interest?

Traditional banks often pay very low rates because they have high overhead costs and do not compete as aggressively for deposits. Online banks and credit unions typically pay much higher rates on the same type of account. You can move your money to a higher-paying institution at any time.

Is my interest may provide to stay the same?

No. Banks can change interest rates at any time, usually without notice. Rates on regular savings accounts and money market accounts can go up or down. Rates on CDs are fixed for the term you choose, so a one-year CD will pay the same rate for the full year.

What is the highest interest rate I can find right now?

Rates change daily and vary by bank. Online banks and credit unions currently offer rates between 4% and 5% or higher on savings accounts, while traditional banks typically offer less than 1%. Check your bank's website or call to see the current rate before you open an account.