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

A certificate of deposit is a savings product where you give a bank a lump sum of money and agree not to touch it for a specific period—typically three months to five years. In return, the bank pays you a fixed interest rate, usually higher than what a regular savings account offers. When the term ends, you get your original money back plus the interest earned.

The trade-off is simple: you lose access to your cash for the duration. If you withdraw the money before the term is up, the bank charges a early withdrawal penalty, which is a fee that reduces your earnings or eats into your principal. The penalty amount varies by bank and by CD term length—a three-month CD might have a smaller penalty than a five-year one.

CDs are insured by the Federal Deposit Insurance Corporation (FDIC) up to $250,000 per depositor, per bank. This means if the bank fails, your money is protected up to that limit. That protection is one reason CDs appeal to people who want certainty: you know exactly what rate you will earn and exactly when you will get your money back.

Key Takeaways

  • You deposit a fixed amount of money for a fixed period and receive a fixed interest rate that does not change, regardless of what happens to market rates.
  • Early withdrawal before the CD matures triggers a penalty that the bank deducts from your interest or principal, reducing your total return.
  • The interest rate on a CD is typically higher than a savings account rate, but lower than what you might earn from stocks or bonds over the same period.
  • Your deposit is FDIC insured up to $250,000, so your money is protected if the bank fails.
  • When your CD matures, you can withdraw the money, open a new CD, or let it roll over into another CD at the bank's current rate.

How interest accrues and when you receive it

Interest on a CD accrues—builds up—according to the rate the bank quoted you when you opened it. That rate stays the same for the entire term, even if the Federal Reserve raises or lowers interest rates in the broader economy. If you open a one-year CD at 4.5%, you will earn 4.5% on your deposit for the full year, no matter what happens outside the bank.

The bank calculates interest daily or monthly, depending on the CD terms, but you typically do not receive the payout until the CD matures. Some banks offer CDs that pay interest monthly or quarterly, which you can withdraw without penalty. Most standard CDs hold all interest until maturity, then add it to your account in a lump sum.

The total amount you receive at maturity is your original deposit plus all accrued interest. If you deposited $5,000 in a one-year CD at 4.5%, you would receive $5,225 when it matures (assuming simple interest and no compounding variations by the bank).

What happens when your CD reaches maturity

On the maturity date, you have three main options. First, you can withdraw the full amount—principal plus interest—and move the money elsewhere or spend it. Second, you can open a new CD with the same bank, choosing a new term and locking in whatever rate the bank is currently offering. Third, you can let the CD roll over automatically into a new CD at the bank's current rate, which happens if you do nothing by the maturity date.

Rollover is important to watch for. If you do not want to renew and the bank automatically rolls your CD into a new term at a lower rate, you have a grace period—usually 7 to 10 days—to withdraw your money without penalty. After that window closes, you are locked in again, and early withdrawal penalties apply once more. Read your CD agreement to know your bank's rollover terms and grace period.

If rates have risen since you opened your CD, opening a new one at maturity lets you capture the higher rate. If rates have fallen, you might choose to move your money to a different bank offering better terms, or to a different type of account altogether.

Early withdrawal penalties and how they work

If you need your money before the CD matures, you can withdraw it, but the bank will charge a penalty. The penalty is typically expressed as a number of months of interest. A CD with a three-month interest penalty means the bank deducts three months' worth of interest from your earnings. A CD with a six-month penalty deducts six months' worth.

The penalty is calculated based on the interest rate you locked in, not the current rate. If you opened a $10,000 CD at 4.5% annual interest and withdrew after six months, and the penalty is three months of interest, the bank would deduct roughly $112.50 (three months of $450 annual interest) from your account. You would receive $10,000 plus three months of interest, minus the three-month penalty—so roughly $10,337.50.

Some banks offer no-penalty CDs, which let you withdraw your money early without a fee, though the interest rate is usually lower than a standard CD. These are useful if you think you might need access to the money but want a rate higher than a savings account.

CD rates and how they compare to other savings products

CD rates change based on what the Federal Reserve does with its benchmark interest rate and what banks decide to offer to attract deposits. When the Fed raises rates, banks typically raise CD rates. When the Fed cuts rates, CD rates fall. Banks also set rates differently depending on the CD term: a three-month CD might pay 4.0%, while a five-year CD might pay 4.8%, or vice versa.

CD rates are usually higher than savings account rates at the same bank, but lower than money market account rates or what you might earn from investing in stocks or bonds. The trade-off is safety and certainty: you know exactly what you will earn, and your money is FDIC insured. With stocks or bonds, you could earn more or lose money depending on market movement.

Shopping around matters. Different banks offer different rates for the same CD term. Online banks often offer higher CD rates than brick-and-mortar banks because they have lower overhead costs. Comparing rates across several banks before you open a CD can mean earning hundreds of dollars more over the term.

Who should use a CD and when

CDs work best for money you know you will not need for a specific period and want to protect from market risk. If you are saving for a down payment on a house in two years, a two-year CD locks in a may provide return. If you have an emergency fund that is already fully stocked and you have extra cash sitting in a low-yield savings account, moving some of it to a CD can earn you more interest without much additional risk.

CDs are less useful if you might need the money unexpectedly, because the early withdrawal penalty will cost you. They are also less useful if you are trying to grow wealth over decades, because the fixed rate may not keep pace with inflation or what you could earn from a diversified investment portfolio.

Some people use a strategy called CD laddering: they open multiple CDs with different maturity dates so that money becomes available at regular intervals. For example, you might open five one-year CDs, each maturing one year apart. This gives you access to some cash each year while keeping most of your money locked in at higher rates.

How to open a CD and what to watch for

Opening a CD is straightforward. You choose a bank, pick a term length (three months to five years, typically), and deposit a lump sum. The bank will ask for your Social Security number and basic identifying information. Most banks let you open a CD online in minutes. Some require a minimum deposit—often $500 to $2,500, though some banks have no minimum.

Before you open a CD, confirm the early withdrawal penalty, the interest rate, how often interest compounds, and the rollover terms. Read the fine print or call the bank to ask. Some banks offer special promotional rates for new customers or for larger deposits, so it is worth asking if a better rate is available.

Also confirm whether the CD is FDIC insured and up to what amount. If you are depositing more than $250,000, you may want to split it across multiple banks to stay within the FDIC insurance limit, or look for banks that offer higher insurance coverage through additional programs.

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 a set number of months of interest, deducted from your earnings. Some banks offer no-penalty CDs that let you withdraw without a fee, though the rate is typically lower. Check your CD agreement for the exact penalty terms.

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

A CD locks your money for a set term at a fixed rate, while a savings account lets you withdraw anytime. CDs pay higher interest because you give up access. Savings accounts are more flexible but earn less. Both are FDIC insured up to $250,000.

Do I have to pay taxes on CD interest?

Yes. CD interest is taxable income in the year you earn it, even if you do not withdraw the money until the CD matures. The bank will send you a 1099-INT form at tax time showing the interest you earned. Report it on your tax return.

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

Most banks automatically roll your CD into a new one at the current rate. You usually have a grace period of 7 to 10 days to withdraw without penalty if you do not want to renew. Check your bank's rollover policy so you do not accidentally lock in a lower rate.

Is my money safe in a CD?

Yes, up to $250,000 per depositor per bank. The FDIC insures CDs the same way it insures savings accounts. If the bank fails, your money is protected. If you have more than $250,000, split it across banks or ask about additional coverage options.