Most savings account APY rates are variable, meaning your bank can raise or lower them whenever it wants

Your savings account APY is not locked in. Banks set their own rates and change them based on what the Federal Reserve does with its benchmark interest rate, what competitors are offering, and how much money they need to attract. When the Fed raises rates, banks usually raise savings APY within days or weeks. When the Fed cuts rates, banks often drop savings APY much faster—sometimes overnight. You will not get advance notice, and the bank is not required to ask your permission.

The only exception is a promotional APY, which is fixed for a stated period—usually three to twelve months. After that period ends, your rate drops to the regular variable rate. A few banks offer no-penalty CDs or money market accounts with rates that stay the same for a full year, but these are less common and usually require a larger deposit.

The practical result: if you want to lock in a rate, you need a certificate of deposit (CD), which guarantees your APY for a specific term—three months, six months, one year, five years, or longer. Everything else in a savings account moves with the market.

Key Takeaways

  • Banks can change your savings APY at any time without notifying you in advance, because savings rates are variable by design.
  • When the Federal Reserve raises its benchmark rate, banks typically raise savings APY within days or weeks; when the Fed cuts rates, banks often drop APY faster.
  • Promotional rates are fixed for a stated period—usually three to twelve months—after which your rate reverts to the regular variable rate.
  • If you want a may provide rate, you must open a CD, which locks in your APY for a specific term ranging from three months to five years or longer.
  • Checking your bank's current rates regularly is the only way to know whether you are still earning competitively or should move money elsewhere.

How the Federal Reserve affects what your bank pays you

The Federal Reserve sets a target range for the federal funds rate—the rate at which banks lend to each other overnight. This is not the rate you earn on savings, but it is the lever that moves everything else. When the Fed raises its target range, banks have more incentive to pay higher APY on savings accounts because they can charge more on loans. When the Fed cuts rates, banks cut savings APY because they earn less on loans.

The lag between a Fed move and a bank's response varies. On rate increases, most large banks move within one to two weeks. On rate cuts, the response is often faster—sometimes the same day. This asymmetry means your APY tends to fall quicker than it rises, which is why savers often feel squeezed when the Fed starts cutting.

You can track the Fed's moves on the Federal Reserve's website, which publishes the target range after each policy meeting. The next scheduled meeting dates are public, so you can anticipate when changes might come.

Why banks lower rates faster than they raise them

When the Fed raises rates, banks face competition from other banks and from higher-yielding options like money market funds and short-term Treasury bills. They have to raise savings APY to keep deposits from flowing out. But they do this grudgingly, because higher rates on savings mean lower profit margins. The process takes time.

When the Fed cuts rates, banks cut savings APY immediately because they have no reason to pay more. Depositors have nowhere else to go—money market funds and Treasuries are also yielding less. Banks know this, so they cut first and ask questions later. A rate cut by the Fed can translate to a savings APY drop within hours.

This is why savers who rely on interest income often feel the pain of rate cuts more sharply than they enjoy the benefit of rate increases. Your bank is not being malicious; it is responding to the economics of lending and borrowing.

What happens to promotional rates when the promotional period ends

A promotional APY is a temporary rate designed to attract new deposits. The bank advertises it prominently—often 4.50% or higher—but always with an end date. Common promotional periods are three months, six months, or twelve months. When that period ends, your rate automatically drops to the bank's regular variable savings rate, which is usually much lower—often 0.01% to 0.50%.

The bank will send you a notice before the promotional period ends, usually thirty to sixty days in advance. This notice tells you the new rate and when it takes effect. You are not required to accept it. If you do not like the new rate, you can move your money to another bank or into a CD at your current bank before the promotional rate expires.

The key is to mark your calendar. Promotional rates are easy to forget about, and many people wake up months later to discover their rate has dropped and they have been earning almost nothing. Set a phone reminder for thirty days before the promotional period ends so you have time to decide what to do.

How to compare rates across banks and know when to move your money

Savings APY varies widely by bank. Online banks typically offer higher rates than brick-and-mortar banks because they have lower overhead. Credit unions sometimes offer competitive rates to members. The difference between a 4.50% APY and a 0.50% APY is substantial—on a $10,000 balance, that is $400 per year versus $50 per year.

To compare rates, visit the websites of several banks and note their current APY for regular savings accounts. Write down the date you checked, because rates change. Check again every month or two, especially if the Fed has recently moved rates. Many financial websites also publish rate comparison tables, though these are updated at different frequencies and may not reflect the absolute latest rates.

If your current bank's rate falls significantly behind competitors, moving your money is straightforward. Open an account at a higher-paying bank, transfer your balance, and close the old account. The whole process takes a few days. The only reason not to move is if you have a promotional rate that is still running—wait until it ends, then move.

The difference between variable savings rates and fixed CD rates

A savings account APY is variable: the bank can change it anytime. A CD APY is fixed: the bank guarantees it for the full term. If you open a one-year CD at 4.75%, you will earn 4.75% for exactly one year, no matter what the Fed does or what other banks are paying. At the end of the year, your CD matures, and you can withdraw the money or roll it into a new CD at whatever rate is current at that time.

The tradeoff is liquidity. With a savings account, you can withdraw money anytime without penalty. With a CD, if you withdraw before the maturity date, you pay an early withdrawal penalty—usually a few months of interest. Some banks offer no-penalty CDs, which let you withdraw early without a penalty, but these rates are typically lower than standard CDs.

If you think rates might fall, locking in a CD now protects you. If you think rates might rise, keeping money in a savings account lets you benefit from the increase. But predicting the Fed is difficult, so many savers use a ladder strategy: split their money across CDs of different lengths (three months, six months, one year, two years) so that some money matures regularly and can be reinvested at new rates.

What to do if your bank's rate drops and you want to keep earning more

If your bank cuts its savings APY and you want to earn more, you have three options: move your money to a higher-paying bank, move it into a CD at your current bank or another bank, or move it into a money market account or Treasury bill.

Moving to another bank is free and takes a few days. You can initiate an external transfer from your new bank's website, and most banks will handle the paperwork. Some banks offer switching bonuses—$100 to $500 for opening a new account and depositing a minimum amount—which can offset any hassle.

Moving into a CD locks in the current rate. If you think rates might fall further, this protects you. If you think rates might rise, you are giving up the chance to benefit, but you are also protected against rates falling even lower.

Money market accounts are a middle ground: they usually pay slightly more than savings accounts and slightly less than CDs, and they let you write checks or make withdrawals, though with some restrictions. Treasury bills (short-term government debt) are backed by the U.S. government and currently pay competitive rates, but they require a separate account and are less convenient than a bank account.

Frequently Asked Questions

Can a bank lower my savings APY without telling me?

Yes. Banks are not required to notify you in advance of a rate cut. They must send you notice of the change, but this often comes after the rate has already dropped. Read your bank statements and account statements regularly to catch rate changes.

If I have a promotional rate, what happens when it expires?

Your rate automatically drops to the bank's regular variable savings rate, which is usually much lower. The bank will send you notice thirty to sixty days before this happens. You can move your money to another bank or into a CD before the promotional period ends if you do not like the new rate.

Is there any way to lock in a savings rate?

No, not for a regular savings account. The only way to lock in a rate is to open a CD, which guarantees your APY for a specific term. After the CD matures, you can open a new one at whatever rate is current at that time.

How often do banks change savings APY?

Banks can change rates anytime, but most make changes within days or weeks of a Federal Reserve rate move. Some banks change rates weekly or monthly based on market conditions. There is no set schedule, so checking your bank's website monthly is the best way to stay informed.

Should I move my money if my bank's rate drops?

If your bank's rate falls significantly behind competitors—more than 0.50% or 1.00%—moving to a higher-paying bank makes financial sense. Calculate how much extra interest you would earn at a higher rate over a year, and compare that to any switching costs or bonuses. Usually, the math favors moving.