Savings account interest rates are not fixed—your bank can raise or lower them whenever it wants, and most rates move up and down several times a year.

When you open a savings account, the interest rate you see is what you earn right now, not a promise for the future. Banks set their own rates based on what the Federal Reserve does with its benchmark rate, competition from other banks, and how much money they need to attract. If the Fed raises rates, your bank might raise yours. If the Fed cuts rates or your bank wants to keep more profit, your rate can drop—sometimes within days.

The only exception is a certificate of deposit (CD), which locks in a fixed rate for a set period, usually three months to five years. Once you buy a CD, the rate does not change, even if the Fed moves or your bank changes its savings rate. When the CD matures, you can renew at whatever rate the bank is offering then, but you are not locked in for another term unless you choose to be.

Key Takeaways

  • Banks change savings account rates on their own schedule, often multiple times per year, and you have no control over when or by how much.
  • Your rate can go up or down depending on Federal Reserve decisions, market conditions, and your bank's business needs.
  • A CD is the only common savings product that locks in a fixed rate for the entire term you choose.
  • High-yield savings accounts offered by online banks tend to have higher starting rates than traditional banks, but those rates also move up and down.
  • You can move your money to a different bank if your rate drops and you find a better offer elsewhere.

How banks decide when to change your rate

The Federal Reserve sets a target range for the federal funds rate—the rate banks charge each other to borrow overnight. Banks do not have to match that rate exactly, but it influences what they offer customers. When the Fed raises its rate, banks usually raise savings rates within weeks because they can borrow money more cheaply and want to attract deposits. When the Fed cuts rates, banks often cut savings rates faster because they need less money and want to keep more of the interest spread for themselves.

Your individual bank also looks at how much money it has on deposit and how much it needs to lend out. A bank flush with deposits might lower its savings rate because it does not need to attract more money. A bank that needs deposits might raise its rate to compete with rivals. This is why two banks can offer very different rates on the same day, and why your bank's rate might stay flat while others move.

What happens to your rate when the Fed moves

The Federal Reserve does not set savings account rates directly—it sets the federal funds rate, which is the rate banks charge each other. But that rate ripples through the whole system. When the Fed raises its target rate, banks have more incentive to raise savings rates because they can earn more on the money they lend out. When the Fed cuts rates, banks cut savings rates because they earn less on loans and want to protect their profit margin.

The timing is not automatic. Some banks raise rates within days of a Fed move. Others wait weeks or months. A few banks raise rates quickly but cut them slowly, or vice versa. There is no rule that says your bank must match a Fed move at all—it is a business decision. This is why shopping around after a Fed announcement can pay off: some banks will have already moved, and others will not have yet.

Why high-yield savings accounts still have variable rates

A high-yield savings account (HYSA) is a regular savings account offered by online banks or online divisions of traditional banks. It pays more interest than a standard savings account because online banks have lower overhead costs and compete aggressively for deposits. But the rate is still variable. Your HYSA might start at 4.5% one month and drop to 4.0% the next if the bank decides to lower it or if the Fed cuts rates and the bank does not raise its rate to match.

The advantage of an HYSA is that the starting rate is usually higher than what a brick-and-mortar bank offers. The disadvantage is that you have no may provide it will stay high. Some online banks have kept rates competitive for years; others have cut rates sharply once they accumulated enough deposits. Read the fine print and check whether the bank has a history of holding rates steady or cutting them quickly.

How to protect yourself when rates are variable

You cannot lock in a savings rate unless you buy a CD. But you can take steps to minimize the damage when rates drop. First, keep your savings in a bank or account that has historically kept rates competitive—check review sites and banking forums to see what other customers report. Second, set a reminder to check your rate every few months. If it drops and you find a better offer elsewhere, you can move your money. Banks cannot charge you a fee to withdraw from a savings account, so switching is free.

Third, consider splitting your money between a regular savings account and a CD ladder. Put money you might need soon in the savings account and money you can lock away for three to twelve months in CDs. That way, if rates drop, at least part of your money is earning a fixed rate. When each CD matures, you can renew it at the new rate or move the money if another bank is offering better terms.

What to do if your bank cuts your rate

If your bank lowers your savings rate and you want to keep earning more, you have three options. First, stay put if the rate is still competitive compared to other banks—sometimes a rate drop is market-wide and you will not do better elsewhere. Second, move your money to a different bank that is offering a higher rate. This takes a few days and involves no fees. Third, put new deposits into a CD at a bank offering a good fixed rate, while leaving your existing savings where it is.

Banks are required to notify you before they lower your rate, usually by email or mail. Read those notices carefully. Some banks give you a grace period to move your money before the new rate takes effect. Others lower the rate immediately. If you disagree with the change, you have the right to close the account and take your money elsewhere—there is no penalty for withdrawing from a savings account.

Comparing fixed rates (CDs) to variable rates (savings accounts)

FeatureSavings Account (Variable)Certificate of Deposit (Fixed)
Rate locked in?No—can change anytimeYes—for the entire term
When rate changesBank decides; often several times per yearNever, until maturity
Access to moneyAnytime, no penaltyOnly at maturity; early withdrawal costs interest
Starting rateUsually lower than CD ratesUsually higher than savings rates
Best forMoney you might need soonMoney you can leave untouched for months or years

Frequently Asked Questions

Can my bank lower my savings rate without telling me?

No. Banks must notify you before lowering your rate, usually by email or mail at least 30 days in advance. Read those notices carefully—they often include the new rate and the date it takes effect. If you do not see a notice, contact your bank to confirm your current rate.

If I buy a CD, will the rate stay the same when it matures?

No. When your CD matures, you can renew it at whatever rate the bank is offering at that time, which may be higher or lower than your original rate. You can also move the money to a different bank or product. You are not locked in for another term unless you actively choose to renew.

Why do online banks offer higher savings rates than traditional banks?

Online banks have lower overhead costs because they do not operate physical branches. They pass some of those savings to customers in the form of higher interest rates. However, those rates are still variable and can drop if the bank lowers them or if the Fed cuts rates.

What happens to my savings rate if the Fed raises rates?

Your bank will likely raise your savings rate, but not necessarily by the same amount or on the same timeline. Some banks raise rates quickly; others wait weeks. There is no rule requiring your bank to pass along the full Fed increase, so your rate might go up less than the Fed's move.

Can I lock in my current savings rate?

No, not with a regular savings account. The only way to lock in a rate is to buy a CD. You can also move your money to a bank offering a higher rate and hope they keep it competitive, but there is no may provide.