A Certificate of Deposit is a savings account where you agree to leave money untouched for a set period

A Certificate of Deposit (CD) is a contract between you and a bank or credit union. You give them a lump sum of money, they promise to hold it for a specific length of time — anywhere from a few months to several years — and in return they pay you a fixed interest rate. When the time period ends, you get your original money back plus the interest earned.

The trade-off is straightforward: in exchange for locking your money away, the bank pays you more interest than a regular savings account would. You cannot withdraw the money early without paying a penalty, which is usually a portion of the interest you earned. This makes CDs different from savings accounts, where you can take money out whenever you want.

Banks and credit unions use CD money to make loans to other customers. Because they know exactly how long they will have your money, they can offer you a higher rate. The longer you agree to lock the money away, the higher the rate typically is.

Key Takeaways

  • You deposit a fixed amount of money for a fixed time period and receive a fixed interest rate that does not change.
  • Early withdrawal penalties vary by bank and by CD term, so read the contract before you open one.
  • CDs are insured by the FDIC (at banks) or NCUA (at credit unions) up to $250,000 per account, so your money is protected even if the institution fails.
  • CD rates change based on what the Federal Reserve does with interest rates, so the rate you see today may not be available next month.
  • You can ladder CDs by opening several with different maturity dates so that money becomes available at regular intervals without a penalty.

How the interest rate and term length work together

When you open a CD, you choose two things: how long to lock the money away (the term) and how much to deposit. The bank then tells you the interest rate you will earn. That rate stays the same for the entire term — it will not go up or down, no matter what happens to other interest rates.

Terms range widely. Some banks offer CDs as short as three months; others have terms of one, two, three, five, or even ten years. Longer terms almost always pay higher rates. A one-year CD might pay 4.5 percent, while a five-year CD from the same bank might pay 5.2 percent. The bank is paying you extra because you are giving up access to your money for longer.

The interest compounds, meaning you earn interest on your interest. How often it compounds — daily, monthly, or quarterly — depends on the bank's terms. More frequent compounding means slightly more money at the end, though the difference is usually small.

What happens when your CD matures

When the term ends, your CD reaches its maturity date. At that point, the bank deposits your original money plus all the interest into your account. You now have access to the full amount with no penalty.

Most banks give you a grace period — usually seven to ten days — to decide what to do next. You can withdraw the money, move it to another account, or let the bank automatically renew the CD at the current rate. If you do nothing, many banks will roll the money into a new CD with the same term at whatever rate they are offering that day. Read your CD agreement to see what your bank does by default.

If you want to move the money or close the account, you do not have to do anything special. Just contact the bank and ask them to transfer it or send you a check. There is no penalty for withdrawing money after the maturity date.

Early withdrawal penalties and how they work

If you need the money before the maturity date, you can withdraw it, but the bank will charge you a penalty. The penalty is usually stated as a number of months of interest. For example, a penalty might be "three months of interest" or "six months of interest."

Here is how that works in practice: suppose you have a $10,000 CD earning 5 percent annually, and the penalty is three months of interest. Three months of interest on $10,000 at 5 percent is about $125. If you withdraw after six months, you would get your $10,000 back, but the bank would subtract the $125 penalty. You would receive $9,875.

Penalties vary widely by bank and by term. Longer-term CDs usually have larger penalties. Before you open a CD, ask the bank what the early withdrawal penalty is — it should be in the contract. Some banks charge a flat dollar amount instead of a number of months; others charge a percentage of the deposit. Compare penalties across banks if you think there is any chance you might need the money early.

FDIC insurance and what it protects

Money in a CD at a bank is insured by the FDIC (Federal Deposit Insurance Corporation) up to $250,000 per depositor, per bank. This means if the bank fails, the government will pay you back up to that limit. Your CD is one of the safest places to put money because of this protection.

If you have a CD at a credit union instead of a bank, the same protection applies through the NCUA (National Credit Union Administration) rather than the FDIC. The coverage limit is still $250,000.

The $250,000 limit applies per bank, not per CD. If you have multiple CDs at the same bank, the total coverage is $250,000 across all of them. If you want to protect more than $250,000, you would need to split the money across different banks.

CD rates and how they change

CD rates move up and down based on what the Federal Reserve does with interest rates. When the Fed raises rates, banks typically raise CD rates within days or weeks. When the Fed cuts rates, CD rates fall. This means the rate you see today may not be available next week, and rates you locked in last year are probably higher than what new CDs pay today.

You cannot change the rate on a CD once you have opened it. If rates go up after you buy a CD, you are stuck with your original rate. If rates go down, you are protected — your rate stays the same. This is why some people wait to open CDs when they think rates are about to fall, and why others open them quickly when rates are high.

Different banks offer different rates on the same term. A large national bank might pay 4.0 percent on a one-year CD, while an online bank might pay 4.8 percent. Shopping around before you open a CD can mean hundreds of dollars in extra interest over the life of the account.

CD laddering: a strategy to access money without penalties

One way to get higher CD rates while still having access to some of your money is called CD laddering. Instead of putting all your money in one CD with a long term, you split it across several CDs with different maturity dates.

For example, suppose you have $10,000 and want to lock it away for five years. Instead of buying one five-year CD, you could buy five one-year CDs with $2,000 each. Every year, one CD matures and you can withdraw that money without a penalty. You can then decide whether to spend it, move it to savings, or roll it into a new five-year CD. This gives you flexibility while still earning the higher rates that come with longer terms.

Laddering works best when you have a larger amount to split and when you think you might need access to some of the money. It requires more work than a single CD, but it solves the problem of being locked in completely.

Frequently Asked Questions

Can I withdraw money from a CD before it matures?

Yes, you can withdraw early, but the bank will charge a penalty. The penalty is usually a portion of the interest you earned, though some banks charge a flat fee or a percentage of your deposit. The exact penalty depends on the bank and the CD term, so check your contract before you open one.

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

A savings account lets you withdraw money anytime with no penalty, but it pays a lower interest rate. A CD locks your money away for a set time and pays a higher rate, but you pay a penalty if you withdraw early. CDs are better if you know you will not need the money; savings accounts are better if you want flexibility.

Do I have to pay taxes on CD interest?

Yes. The interest you earn on a CD is taxable income. The bank will send you a 1099-INT form at the end of the year showing how much interest you earned, and you report that on your tax return. You pay taxes on the interest even if you do not withdraw the money yet.

What happens if I do not withdraw my money when the CD matures?

Most banks automatically renew your CD into a new one with the same term at the current rate. This happens during a grace period, usually seven to ten days after maturity. If you do not want to renew, contact the bank during that window and ask them to transfer or withdraw the money instead.

Is my money safe in a CD?

Yes. CDs at banks are insured by the FDIC up to $250,000, and CDs at credit unions are insured by the NCUA up to $250,000. Even if the bank or credit union fails, you will get your money back up to that limit. CDs are one of the safest places to put money.