Yes, savings account APY changes regularly, and your bank can lower it without asking your permission first

The interest rate your bank pays you on savings — the APY, or annual percentage yield — is not locked in. Banks change it whenever they want, usually in response to what the Federal Reserve does with its own interest rates. When the Fed raises rates, banks often raise APY on savings accounts. When the Fed lowers rates, banks typically lower APY too. Some banks move faster than others, and some move in different directions entirely.

Your bank must notify you before lowering your APY, but the notice can be as short as a few days. You do not have to accept the new rate — you can move your money to another bank — but you have to act quickly if you want to avoid it. Understanding when and why these changes happen helps you decide whether to stay put or shop around.

Key Takeaways

  • Banks change savings APY based on Federal Reserve decisions, market competition, and their own business needs, not because of anything you did.
  • Your bank must send you written notice before lowering your rate, but the notice period is often just a few days.
  • Rate cuts happen faster than rate increases — banks tend to lower APY quickly but raise it more slowly.
  • You can move your money to a different bank before a rate cut takes effect if you receive notice in time.
  • Online banks and credit unions often raise APY faster than large traditional banks when rates go up.

Why banks change APY: the Federal Reserve connection

The Federal Reserve, which is the central bank of the United States, sets a target range for the interest rate that banks charge each other to borrow money overnight. This is called the federal funds rate. When the Fed raises this rate, banks' costs go up, so they often raise the APY they pay on savings accounts to attract deposits. When the Fed lowers the rate, banks' costs go down, and they often lower APY to keep more profit for themselves.

The Fed does not directly control what your bank pays you. Instead, banks watch the Fed's moves and adjust their own rates based on what they think will happen next and what their competitors are doing. A bank might raise APY faster than others if it needs more deposits, or slower if it has plenty of money already. This is why two banks can offer very different rates even when the Fed has not changed anything.

How quickly banks raise and lower rates

Banks typically lower APY faster than they raise it. When the Fed cuts rates, many banks drop their savings APY within days or weeks. When the Fed raises rates, banks often wait longer — sometimes months — before raising what they pay you. This is because lowering rates saves the bank money when ready, while raising rates costs them money, so they move cautiously.

Online banks and credit unions tend to move faster in both directions than large traditional banks. An online bank with low overhead costs might raise APY within a week of a Fed increase. A major national bank might wait several weeks or months. If you want to benefit from rising rates, shopping around when the Fed raises rates can make a real difference in what you earn.

What notice your bank must give you

Federal law requires banks to notify you before lowering your APY. The notice must come in writing — by mail, email, or through your online banking portal — and must tell you the new rate and when it takes effect. The timing varies: some banks give you 30 days' notice, others give you just a few days. Check your account agreement or your bank's website to see what notice period applies to you.

The notice does not ask for your permission. It is a one-way announcement. If you do not like the new rate, you have to take action yourself — either move your money to another bank or accept the lower rate. Some banks allow you to withdraw your money without penalty during the notice period, even if your account normally has withdrawal limits. Read the notice carefully to see what options you have.

When to move your money to a different bank

If your bank lowers APY and you receive notice in time, you can move your savings to a bank offering a higher rate. Online banks and credit unions often have higher APY than traditional banks, especially when rates are rising. You can open a new account at another bank and transfer your money before the rate cut takes effect at your current bank.

Moving money takes a few days. You can use your bank's transfer tool to move money electronically, or you can withdraw cash and deposit it elsewhere. If you are close to the effective date of the rate cut, call your new bank to ask the fastest way to move the money. Some banks can speed up the process if you explain the timing.

How to track APY changes at your bank

Check your bank's website regularly to see if APY has changed. Most banks list current rates on their homepage or in an account details section. You can also set up alerts on rate-tracking websites that notify you when APY changes at banks you use. Some of these sites are free and let you compare rates across many banks at once.

When the Fed announces a rate change, pay attention to your bank's response. If your bank does not raise APY within a few weeks of a Fed increase, that is a sign to compare rates elsewhere. If your bank lowers APY, that is the moment to decide whether to stay or move. The sooner you act, the more time you have to move your money before the cut takes effect.

The difference between savings accounts and money market accounts

Money market accounts and savings accounts both earn APY, and both can have their rates changed by the bank. Money market accounts sometimes offer slightly higher APY than savings accounts, but they also come with limits on how many times you can withdraw per month. When comparing rates, look at both the APY and the withdrawal rules to see which account makes sense for your situation.

Certificates of deposit, or CDs, work differently. When you open a CD, the bank locks in an APY for a set period — usually three months to five years. The rate cannot change during that time, but you cannot withdraw the money early without paying a penalty. If you want a may provide rate that will not change, a CD is a better choice than a savings account.

Frequently Asked Questions

Can my bank lower my APY without telling me?

No. Federal law requires your bank to send you written notice before lowering your rate. The notice period varies — it might be a few days or 30 days — but you must receive it before the cut takes effect. Check your account agreement to see what notice period your bank uses.

If my bank lowers APY, do I have to move my money?

No, but you may want to. If another bank offers a higher rate, moving your money means you earn more interest. If you are happy with your bank for other reasons — good customer service, convenient branches, low fees — you can stay even if the rate is lower than elsewhere.

How often do banks change APY?

There is no set schedule. Banks can change APY whenever they want, though most changes happen in response to Federal Reserve decisions. During periods when the Fed is raising or lowering rates, you might see changes every few weeks. When the Fed is holding rates steady, changes happen less often.

Will my APY go back up if the Fed raises rates again?

Probably, but not automatically. Your bank will decide whether to raise APY based on competition and its own needs. Some banks raise rates quickly, others slowly. You cannot count on your bank raising APY just because the Fed did, so comparing rates at other banks is the best way to know if you are getting a fair deal.

What is the difference between APY and interest rate?

APY includes the effect of compound interest — interest earned on interest — while a straightforward interest rate does not. APY is always the same or higher than the stated rate. Banks must show you the APY, so that is the number to use when comparing accounts at different banks.