A CD locks your money away for a set time in exchange for a higher interest rate

A certificate of deposit (CD) is a bank account where you deposit a lump sum of money and agree not to touch it until a specific date. In return, the bank pays you a fixed interest rate—usually higher than a regular savings account offers. When the CD reaches its maturity date, you get your original deposit back plus the interest earned.

The trade-off is straightforward: you give up access to your money for a defined period (typically three months to five years), and the bank gives you a better rate. If you withdraw the money before the maturity date, you pay an early withdrawal penalty, which is usually a certain number of months' worth of interest.

CDs are insured by the FDIC (Federal Deposit Insurance Corporation) up to $250,000 per account, the same as regular savings accounts. This means your money is protected if the bank fails.

Key Takeaways

  • A CD pays a fixed interest rate for keeping your money locked away until a maturity date you choose at the start.
  • Early withdrawal triggers a penalty—usually three to six months of interest—so only deposit money you won't need before maturity.
  • CD rates vary by bank, term length, and deposit amount, and they change based on what the Federal Reserve does with interest rates.
  • When your CD matures, you can withdraw the money, move it to a new CD, or let it roll over into a new CD at the bank's current rate.

How the interest rate and term length work together

The longer you lock your money away, the higher the rate the bank will pay you. A three-month CD might pay 4.5 percent, while a five-year CD from the same bank might pay 5.2 percent. The bank is willing to pay more because it has your money for longer and can lend it out or invest it with more certainty.

The interest rate is fixed when you open the CD. It does not change if interest rates in the economy go up or down. If you open a two-year CD at 4.8 percent and the Federal Reserve raises rates to 6 percent six months later, you are still earning 4.8 percent on your CD.

Interest compounds on most CDs—usually daily or monthly—which means you earn interest on your interest. The more frequently it compounds, the slightly more you earn, though the difference is usually small.

What happens when your CD reaches maturity

When the maturity date arrives, you have a few options. You can withdraw the full amount (principal plus interest) and move the money elsewhere. You can open a new CD at the bank's current rates. Or you can do nothing, and many banks will automatically roll the CD over into a new one at the same term length, using the bank's current rate at that time.

The rollover rate is important to watch. If rates have dropped since you opened your original CD, the new rate will be lower. Banks typically give you a grace period—usually seven to ten days—after maturity where you can withdraw the money without penalty if you do not want the rollover rate. Check your CD agreement or call the bank to confirm the exact window.

Some banks notify you by mail or email before maturity; others do not. Mark your calendar or set a reminder so you do not miss the grace period if you want to move your money.

Early withdrawal penalties and when they explore

If you need your money before the maturity date, the bank will charge you a penalty. The penalty is typically expressed as a 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. On a $10,000 CD earning 5 percent annually, that is roughly $125.

The penalty is deducted from your interest, not from your principal. You always get your original deposit back. However, if you withdraw very early and the penalty exceeds the interest you have earned so far, the bank deducts the remainder from your principal.

Different banks set different penalties. Some charge a flat fee; others charge a percentage of the deposit. Always read the CD agreement before you open the account so you know exactly what you will owe if you need the money early.

How CD rates compare to other savings options

CDs typically pay more than regular savings accounts because you are giving up access to your money. A regular savings account at the same bank might pay 0.01 percent while a one-year CD pays 4.5 percent. The difference adds up quickly on larger deposits.

Money market accounts sometimes offer rates close to CDs but with more flexibility—you can usually withdraw money without penalty, though there may be limits on how often you can withdraw. High-yield savings accounts also compete with CDs and have become more competitive in recent years, though they usually still pay slightly less than CDs of the same term.

CD rates change constantly based on what the Federal Reserve does with its benchmark interest rate. When the Fed raises rates, banks raise CD rates. When the Fed cuts rates, CD rates fall. If you are considering a CD, compare rates across multiple banks—online banks often pay more than brick-and-mortar branches.

Who should use a CD and when

A CD makes sense if you have money you know you will not need for a specific period and you want a may provide return. If you are saving for a down payment on a house in two years, a two-year CD locks in a rate and removes the temptation to spend the money.

CDs are less useful if you might need the money unexpectedly or if you think interest rates will rise significantly soon. If rates are climbing, you might regret locking in a lower rate for five years. Some people use a CD ladder—opening multiple CDs with different maturity dates so that money becomes available at regular intervals and you can reinvest at new rates as they mature.

CDs are also not an investment in the traditional sense. You are not buying stock or bonds. You are lending money to the bank at a fixed rate. Your return is modest compared to stock market returns over long periods, but your money is may provide and insured.

Frequently Asked Questions

Can I add money to a CD after I open it?

No. A CD is a fixed deposit. Once you open it, you cannot add more money to that CD. If you want to deposit more, you must open a separate CD. Some banks let you open multiple CDs at once with different amounts.

What is a CD ladder and why would I use one?

A CD ladder is when you open several CDs with different maturity dates—for example, one that matures in one year, one in two years, and one in three years. As each one matures, you can reinvest at the current rate or withdraw the money. This spreads out your access to funds and lets you take advantage of rate changes over time.

Do I have to pay taxes on CD interest?

Yes. CD interest is taxable income in the year it is earned, even if you do not withdraw the money. The bank will send you a 1099-INT form at tax time showing how much interest you earned. This applies whether the CD is in a regular account or a retirement account like an IRA.

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

Your CD is protected by FDIC insurance up to $250,000. If the bank fails, the FDIC steps in and pays you your principal plus accrued interest up to that limit. Your money is safe even if the bank goes under.

Can I move a CD to a different bank?

You can withdraw your money when the CD matures and open a new CD at a different bank. You cannot transfer a CD directly to another bank while it is still active. If you withdraw early, you pay the penalty. Waiting until maturity avoids the penalty but means your money sits in the original bank until the maturity date arrives.