A CD is a savings account where you lock up your money for a set time in exchange for a higher interest rate

A certificate of deposit (CD) is an agreement between you and a bank or credit union. You give them a lump sum of money, they hold it untouched for a fixed period—usually three months to five years—and in return they pay you interest at a rate higher than a regular savings account. When the term ends, you get your original deposit back plus the interest earned.

The trade-off is simple: you cannot touch the money during the term without paying a penalty. That penalty is usually a chunk of the interest you would have earned, or sometimes a percentage of your deposit. Because the bank knows exactly when you will withdraw and can lend out your money with certainty, they reward you with better rates than they offer on accounts you can drain at any time.

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

Key Takeaways

  • You deposit a fixed amount, agree not to touch it for a set term (three months to five years), and receive a may provide interest rate higher than savings accounts.
  • Withdrawing early triggers a penalty, usually measured in lost interest or a percentage of your deposit—read the terms before you open one.
  • CD rates vary by bank, term length, and deposit size, so comparing offers across institutions can mean hundreds of dollars in difference over time.
  • Your deposit is FDIC-insured up to $250,000, so your principal is protected even if the bank fails.
  • CDs work best for money you know you will not need for several months or years and want to earn more on than a savings account pays.

How the interest rate and term length work together

The longer you lock your money away, the higher the interest rate the bank typically offers. A three-month CD might pay 4.5 percent annually, while a five-year CD from the same bank might pay 5.2 percent. The bank is willing to pay more because they have your money for longer and can plan around it.

The rate you receive is fixed—it does not change during the term, no matter what happens to interest rates in the broader economy. If you lock in 5 percent for two years and rates drop to 2 percent next month, you still earn 5 percent. If rates climb to 7 percent, you are still earning 5 percent. That certainty is part of what you are paying for.

Interest compounds, meaning you earn interest on your interest. How often it compounds—daily, monthly, quarterly—varies by CD and affects your final payout. A CD that compounds daily will earn slightly more than one that compounds monthly, all else equal. The bank will disclose the compounding schedule in the account terms.

What happens when the CD matures

When your term ends, the CD matures. The bank deposits your original deposit plus all earned interest into your account—usually a linked checking or savings account you specify when you open the CD. You can then withdraw the money with no penalty.

Most banks have a grace period after maturity, usually seven to ten days, during which you can withdraw the money penalty-free. If you do nothing during that window, many banks automatically renew the CD for another term at the current rate the bank is offering. Read the renewal terms before you open a CD; some banks renew at a lower rate than you locked in originally, and you do not want to be surprised.

If you want to avoid automatic renewal, contact your bank before the maturity date and tell them not to renew. You can also shop for a better rate elsewhere and move the money when it matures.

The early withdrawal penalty and when it applies

If you need the money before the term ends, you can withdraw it, but the bank will charge a penalty. The penalty is usually 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 in lost interest.

Some banks instead charge a percentage of your deposit—for example, 1 percent of the amount withdrawn. A few high-yield CDs have no penalty or a very small one, but these are rare and usually come with strings attached, like a minimum deposit of $25,000 or higher.

The penalty applies only to what you withdraw early. If you have a $10,000 CD and withdraw $3,000 before maturity, the penalty applies to that $3,000, not the full balance. Always ask the bank for the exact penalty terms in writing before you commit your money.

CD rates vary widely—shopping around matters

Banks and credit unions set their own CD rates. A five-year CD at one bank might pay 4.8 percent while another pays 5.5 percent. Over five years on a $25,000 deposit, that 0.7 percent difference adds up to roughly $875 in extra earnings. Online banks typically offer higher rates than brick-and-mortar branches because their overhead is lower.

Rates also shift with the broader economy. When the Federal Reserve raises its benchmark rate, banks usually raise CD rates within weeks. When the Fed cuts rates, CD rates fall. If you think rates might rise soon, a shorter term lets you reinvest at a higher rate sooner. If you think rates will fall, locking in a longer term protects you.

Use a CD rate comparison tool or call several banks directly to see what they are currently offering for your term length and deposit size. The difference between the best and worst rate for the same term can be 1 percent or more, which is real money.

Who should use a CD and who should not

A CD makes sense if you have money you will not need for several months or years and want to earn more than a savings account pays. It is also useful if you want a may provide rate and do not want to worry about market swings. People saving for a down payment, a car, or a home renovation often use CDs because they know when they will need the money.

A CD is a poor fit if you might need the money before the term ends, because the penalty will eat into your gains. It is also not an investment tool—CDs are savings vehicles, not stocks or bonds. If you are looking to grow wealth over decades, a CD will not keep pace with inflation or stock market returns. Use a CD for money you want to keep safe and earn a modest, may provide return on.

If you have more than $250,000 to deposit, you can open multiple CDs at different banks to stay within FDIC insurance limits. Some people use a CD ladder—opening several CDs with different maturity dates so that money becomes available at regular intervals without locking everything away for years.

How to open a CD and what documents you need

Opening a CD is straightforward. You can do it online, by phone, or in person at a bank or credit union. You will need a government-issued ID, your Social Security number, and proof of address (a recent utility bill or bank statement works). If you are opening the CD at a new institution, you may also need to provide your checking or savings account number so the bank knows where to deposit your interest and principal when the CD matures.

You choose the deposit amount, the term length, and how often interest compounds. The bank will show you the rate, the total interest you will earn, and the early withdrawal penalty before you confirm. Once you fund the account, the term clock starts. You will receive a statement or confirmation email with all the details.

Some banks require a minimum deposit—often $500 to $1,000—to open a CD. A few online banks have lower minimums or none at all. If you have a small amount to save, shop for banks with low or no minimums.

Frequently Asked Questions

Can I withdraw money from a CD before it matures without a penalty?

No, not from a traditional CD. If you withdraw early, you pay a penalty, usually measured in months of lost interest or a percentage of your deposit. A few banks offer no-penalty CDs, but they typically pay lower rates than standard CDs. Read the terms carefully before you open one.

What is the difference between a CD and a high-yield savings account?

A high-yield savings account lets you withdraw money anytime with no penalty, but pays a lower interest rate. A CD locks your money for a set term and pays more interest, but charges a penalty if you withdraw early. Choose based on whether you need access to the money soon.

If interest rates rise after I open a CD, can I get a higher rate?

No, your rate is locked in for the term. If rates rise, you are stuck earning the lower rate you agreed to. When your CD matures, you can open a new one at the current higher rate. This is why some people use shorter-term CDs when they expect rates to rise.

Are CDs taxed?

Yes, the interest you earn on a CD is taxed as ordinary income in the year you earn it. The bank will send you a 1099-INT form at tax time showing how much interest you earned. If you are in a high tax bracket, the after-tax return on a CD may be lower than you expect.

What happens if the bank fails while my money is in a CD?

The FDIC insures your deposit up to $250,000, so you will get your money back even if the bank fails. The insurance covers the principal and all accrued interest. This protection is automatic—you do not have to do anything to activate it.