What a Certificate of Deposit Is

A certificate of deposit (CD) is a savings account where you agree to leave your money untouched for a set period of time in exchange for a higher interest rate than a regular savings account. You deposit a lump sum, the bank holds it, and at the end of the term—which might be three months, one year, five years, or longer—you get your original money back plus the interest earned.

The trade-off is straightforward: you cannot withdraw the money early without paying a penalty. That penalty is usually a portion of the interest you would have earned, though some banks charge a flat fee or a percentage of your principal. Because the bank knows exactly how long it will have your money, it can afford to pay you more interest than it would on a regular savings account where you can pull funds out anytime.

Key Takeaways

  • You deposit a fixed amount of money for a fixed period, and the bank pays you a set interest rate that does not change during the term.
  • Early withdrawal penalties exist specifically to discourage you from taking the money out before the term ends, and they vary widely between banks.
  • CDs are insured by the Federal Deposit Insurance Corporation (FDIC) up to $250,000 per depositor per bank, so your principal is protected even if the bank fails.
  • Interest rates on CDs change based on what the Federal Reserve does with its benchmark rate, so rates available today will not be the same next month.
  • You can open a CD at any bank or credit union, and rates and terms differ enough that comparing before you deposit is worth your time.

How Interest Rates and Terms Work

When you open a CD, the bank tells you the annual percentage yield (APY)—the actual rate of return you will earn over a year, accounting for how often interest is compounded. A CD with a 4.5% APY will earn you more than one with 4.0%, but only if you hold it for the full term. The rate is locked in the day you open the account and does not change, even if the bank raises or lowers its rates the next week.

Terms range from as short as three months to as long as ten years or more. Shorter terms usually pay lower rates because the bank has less certainty about future interest rates. Longer terms pay higher rates because the bank is committing to that rate for years. A three-month CD might pay 4.0%, while a five-year CD from the same bank might pay 5.2%. You choose the term that matches when you will actually need the money.

The amount you deposit is called the principal. Most banks have a minimum deposit—often $500 to $2,500—though some online banks have no minimum. The interest accrues during the term and is added to your account at maturity, which is the day the term ends.

What Happens When Your CD Matures

On the maturity date, your CD term is over. The bank will either automatically renew the CD for another term at the current rate, or deposit the principal plus interest into a linked savings or checking account. Read the fine print when you open the CD to see what your bank does by default—most banks renew automatically, but some do not.

If your bank renews automatically and you do not want it to, you usually have a grace period of seven to ten days after maturity to withdraw the money or move it without penalty. If you miss that window and the CD renews, you are back to the early withdrawal penalty if you want out before the new term ends. Call your bank or log into your account a few days before maturity if you want to avoid an unwanted renewal.

Early Withdrawal Penalties and When They explore

If you need the money before the term ends, the bank will let you withdraw it, but you will pay a penalty. The penalty is usually calculated as a certain number of months of interest. A CD with a three-month interest penalty means you lose three months' worth of the interest you would have earned. If your CD was earning $100 in interest per month and you withdraw after six months, you would owe back $300 in penalties, so you would walk away with less than your original principal.

Some banks use a percentage-of-principal penalty instead—for example, 1% of what you deposited. A few banks charge a flat fee. The penalty structure varies widely, so ask your bank what it charges before you open the account. Online banks often have lower penalties than brick-and-mortar banks, and credit unions sometimes have no penalty at all if you withdraw after a certain number of days have passed.

The one exception is if the bank closes or is taken over by another institution. The FDIC protects your money up to $250,000, so you can withdraw without penalty in that scenario.

FDIC Insurance and Safety

Money in a CD at an FDIC-insured bank is protected up to $250,000 per depositor per bank. That means if you deposit $50,000 in a CD and the bank fails, the FDIC will return your $50,000 plus any accrued interest, even if the bank cannot pay it back itself. If you have multiple CDs at the same bank, the $250,000 limit applies to your total across all of them.

If you want to protect more than $250,000 in CDs, you can open accounts at different banks—each bank's FDIC coverage is separate. You can also open a CD in your name alone and another in a joint account with someone else at the same bank; those are counted separately for insurance purposes. Credit unions use a similar system called NCUA insurance, also up to $250,000 per account owner per institution.

How CD Rates Compare to Other Savings Options

A regular savings account at most banks pays less than 0.5% APY, while a high-yield savings account might pay 4.0% to 5.0% APY. A CD typically pays somewhere in between or slightly higher than a high-yield savings account, depending on the term and the current interest rate environment. The advantage of a CD is that your rate is may provide for the full term, whereas high-yield savings rates can drop at any time.

Money market accounts often pay rates similar to CDs but let you write checks or make withdrawals without penalty, though they usually have higher minimum deposits. Treasury bills and bonds, sold by the federal government, offer different terms and tax treatment. The right choice depends on when you need the money and whether you can afford to lock it away.

Where to Open a CD and What to Compare

You can open a CD at any bank, credit union, or online financial institution. Rates vary significantly—a five-year CD might pay 4.5% at one bank and 5.2% at another. Before you deposit, compare the APY, the term length, the minimum deposit, and the early withdrawal penalty across at least three institutions. Online banks almost always pay higher rates than traditional banks because they have lower overhead costs.

Use a rate-comparison website to see what is available, but verify the rate on the bank's own website before you open the account—rates change daily. Also check whether the bank is FDIC-insured by searching the FDIC's bank database online. If you are opening a CD at a credit union, confirm it is NCUA-insured.

Frequently Asked Questions

Can I withdraw money from a CD before it matures?

Yes, but you will pay an early withdrawal penalty. The penalty is usually several months of interest, though some banks charge a percentage of your principal or a flat fee. The exact penalty depends on your bank and the CD's terms, so check before you open the account.

What is the difference between a CD and a savings account?

A savings account lets you deposit and withdraw money anytime with no penalty, but it pays a much lower interest rate. A CD locks your money for a set term and pays a higher rate, but you lose interest if you withdraw early. Choose a CD if you have money you will not need for months or years.

Do I have to pay taxes on CD interest?

Yes. CD interest is taxable income in the year it is earned or credited to your account, depending on how your bank handles it. The bank will send you a 1099-INT form at tax time if you earned $10 or more in interest. Talk to a tax professional about how to report it.

What happens if the bank fails while I have a CD?

The FDIC will return your principal plus any accrued interest up to $250,000. You do not lose money, and you can withdraw without penalty. The FDIC handles the payout automatically; you do not have to do anything except wait for the funds to be transferred.

Can I open multiple CDs at the same bank?

Yes, but your FDIC insurance covers all of them together up to $250,000 total at that bank. If you want to protect more than $250,000, open CDs at different banks, since each bank's coverage is separate.