Savings account interest rates are the percentage of your balance that a bank pays you each year for letting them hold your money

When you deposit money into a savings account, the bank lends that money to other customers through mortgages, auto loans, and business credit lines. In exchange, the bank pays you interest—a small cut of what they earn. That rate is expressed as an annual percentage yield, or APY. If your account earns 4.5% APY and you keep $1,000 in it for a full year without touching it, you'll earn $45 in interest (though the actual amount compounds daily or monthly depending on the bank's terms).

The rate you see advertised is what the bank is offering right now, but it is not locked in. Banks change their rates frequently—sometimes weekly—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. When the Fed cuts rates, savings rates fall too. This means the 4.5% you see today might be 3.8% next month, or it might stay the same. You have no control over this, and the bank can change your rate without your permission (though they must notify you first).

Key Takeaways

  • Savings account interest rates vary by bank and change based on Federal Reserve decisions, not on your personal finances or credit score.
  • Online banks typically offer higher rates than brick-and-mortar banks because they have lower overhead costs.
  • The rate you earn is compounded daily or monthly, meaning interest earns interest, but the difference is small on typical balances.
  • Your rate can change at any time after you open the account, and the bank will notify you before the change takes effect.
  • Money market accounts and certificates of deposit (CDs) often pay higher rates than regular savings accounts, but with different access rules.

Why rates differ between banks and account types

Not all savings accounts pay the same rate. An online bank like Ally or Marcus might pay 4.35% APY while your local credit union pays 2.1% and a major national bank like Chase or Bank of America pays 0.01%. The difference comes down to cost and competition. Online banks have no physical branches, so they spend less money on buildings and staff. They pass some of that savings to customers through higher rates. Large national banks have millions of customers and don't need to compete aggressively on rates because people stay with them for convenience.

Within a single bank, different account types pay different rates. A regular savings account might pay 0.5% APY, while a money market account at the same bank pays 2.8% APY. The trade-off is usually access: money market accounts often require a higher minimum balance or limit how many withdrawals you can make per month. Certificates of deposit (CDs) pay even higher rates—sometimes 5% or more—but you lock your money away for a set period (three months, one year, five years). If you withdraw early, you pay a penalty.

How the Federal Reserve affects what you earn

The Federal Reserve sets a target range for the federal funds rate, which is the interest rate banks charge each other for overnight loans. This rate influences everything else: mortgage rates, credit card rates, and savings rates. When the Fed raises its rate, banks have more incentive to attract deposits because they can lend that money out at higher rates. They do this by raising what they pay on savings accounts. When the Fed cuts rates, banks lower savings rates because they can't earn as much from lending.

This relationship is not instant or automatic. Some banks raise rates within days of a Fed increase; others wait weeks or months. Some banks cut rates quickly when the Fed cuts, while others hold steady longer. There is no rule forcing banks to pass along Fed changes to savers, which is why you might see one bank at 4.5% APY and another at 3.2% APY on the same day. Shopping around matters, especially in a high-rate environment.

How interest compounds and what it means for your money

Interest compounds, meaning you earn interest on your interest. If your account compounds daily, the bank calculates your interest each day based on your balance that day, then adds it to your account. The next day, you earn interest on the new, slightly higher balance. Over a year, this compounding adds up—but the effect is small on typical savings balances.

Here is a concrete example: $10,000 at 4.5% APY compounded daily earns about $460 in a year (not exactly $450, because of the daily compounding). If the same $10,000 were at 4.5% APY compounded monthly, you'd earn about $459. The difference is $1. On smaller balances—say $1,000—the difference between daily and monthly compounding is less than 10 cents. The compounding method matters more when you have large balances or when rates are very high, but for most people, the headline APY is what matters.

What happens when your bank changes your rate

Banks can change savings rates at any time, and they do not need your permission. However, they must notify you before the change takes effect. The notification usually comes by email, mail, or a message in your online banking portal. The notice period varies—some banks give 30 days, others give less. Once the change is in effect, your new rate applies to all money in that account going forward.

If your bank lowers your rate and you do not like the new rate, you can move your money to a different bank. There is no penalty for closing a savings account (unlike CDs, which charge early withdrawal fees). Many people move their savings when rates drop significantly, which is why shopping around every few months makes sense. A rate drop from 4.5% to 2.1% at your current bank might mean switching to a new bank that still pays 4.3% is worth the 10 minutes of paperwork.

How to compare rates across banks

The easiest way to compare is to visit bank websites directly and look at the savings account rate listed on their homepage or in their rates page. Most banks display APY prominently. Write down the rate, the minimum balance required (if any), and whether there are monthly fees. Some banks charge $5 or $10 per month if your balance drops below a threshold, which can wipe out your interest earnings on small balances.

Websites like Bankrate, DepositAccounts, and NerdWallet aggregate savings rates from many banks and update them regularly. These sites let you filter by rate, account type, and minimum balance, which saves time if you are comparing dozens of options. Keep in mind that rates change constantly, so a rate you see on a comparison site might be outdated by the time you visit the bank. Always check the bank's own website or call them to confirm the current rate before you move your money.

The difference between APY and APR

APY (annual percentage yield) includes the effect of compounding, while APR (annual percentage rate) does not. For savings accounts, banks are required to show you the APY, which is the number that matters. APR is used for loans and credit cards, not savings. If you see a savings account advertised with an APR instead of an APY, that is a red flag—it means the bank is not following standard disclosure rules, or it is trying to make the rate look higher than it actually is.

On a savings account, APY and APR would be very close anyway because interest rates are low and compounding happens frequently. The real difference shows up on loans, where APR can be significantly lower than APY because compounding works against you (you pay interest on interest). For savings, just look for the APY number and compare that across banks.

Frequently Asked Questions

Can I lock in a savings account rate so it does not change?

No. Savings account rates are variable, meaning they can change at any time. If you want a may provide rate, you need a certificate of deposit (CD), which locks in a rate for a set period—three months, one year, five years, or longer. The trade-off is that you cannot withdraw the money without paying a penalty.

Why do online banks pay more than big banks?

Online banks have lower operating costs because they do not run physical branches. They pass some of that savings to customers through higher interest rates. They also compete aggressively on rates because they cannot offer the convenience of walking into a branch, so a higher rate is their main selling point.

Does my credit score affect my savings account interest rate?

No. Banks do not check your credit score for savings accounts. The rate you get depends only on which bank you choose and what type of account you open. Everyone at the same bank with the same account type gets the same rate, regardless of credit history.

What is a good savings account interest rate right now?

Rates change constantly based on Federal Reserve decisions. At any given time, online banks typically offer the highest rates. To find the current best rates, check Bankrate, DepositAccounts, or bank websites directly. Rates above 4% are generally considered competitive, but this changes as the Fed adjusts its benchmark rate.

If I move my money to a new bank, do I lose the interest I already earned?

No. Interest you have already earned stays in your account and moves with you. When you close the old account and open a new one, the bank transfers your full balance, including all accrued interest. You only stop earning the old rate once the money leaves the old bank.