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

When you open a certificate of deposit (CD), you give a bank or credit union a lump sum of money and agree not to touch it for a specific period — typically anywhere from three months to five years. In return, the bank pays you a fixed interest rate that is almost always higher than what you would earn in a regular savings account. The bank uses your money during that time and pays you back the full amount plus interest when the term ends.

The tradeoff is straightforward: you get a better rate, but your money is locked away. If you withdraw before the term is up, you pay a penalty — usually a few months' worth of interest. This penalty is why CDs work best for money you know you will not need soon.

Key Takeaways

  • You deposit a fixed amount of money for a fixed period and receive a may provide interest rate that does not change.
  • The longer the term, the higher the rate — a five-year CD typically pays more than a three-month CD at the same bank.
  • Withdrawing early costs you a penalty, usually several months of interest, so only use a CD for money you can leave untouched.
  • Your deposit is insured up to $250,000 per account owner per bank by the FDIC (or NCUA if the issuer is a credit union).

How the interest rate and term length work together

Banks set CD rates based on what the Federal Reserve is doing with short-term interest rates and what other banks are offering. Right now, rates vary widely depending on the bank and the term — you might see 4% on a three-month CD and 5% on a five-year CD at the same institution, or you might see the opposite at a different bank. There is no single "CD rate"; every bank prices its own.

The term is the number of months or years you commit to leaving the money in the CD. Common terms are 3 months, 6 months, 1 year, 2 years, 3 years, and 5 years. Shorter terms come with lower rates because the bank has less certainty about future interest rates. Longer terms usually pay more because you are giving up access to your money for longer.

Once you buy a CD, the rate is locked in. If market rates drop, you still earn your original rate. If rates rise, you are stuck with the lower rate unless you pay the penalty to get out early and move the money elsewhere.

What happens when your CD matures

When the term ends, your CD matures. The bank deposits your original amount plus all the interest into your account — usually a linked checking or savings account you specify when you open the CD. You can then withdraw the money, move it to another bank, or buy a new CD.

Most banks have an automatic renewal period after maturity — typically 7 to 10 days. If you do nothing during that window, the bank automatically rolls your money (principal plus interest) into a new CD with the same term at whatever the current rate is. If you do not want to renew, you need to tell the bank before that window closes, or you will be locked in again.

This automatic renewal is straightforward to miss. If rates have dropped and you wanted to move your money to a higher-paying option, you could accidentally lock yourself in at a worse rate. Check your CD maturity date on your calendar and contact your bank a week or two before it arrives.

Early withdrawal penalties and when they explore

If you need your money before the CD matures, the bank will let you take it out — but you will pay a penalty. The penalty is usually expressed as a number of months of interest. A CD with a "three-month penalty" means you lose three months' worth of the interest you earned. On a $10,000 CD earning 5% annually, that is roughly $125.

The penalty comes out of your interest first. If you have not earned enough interest to cover the full penalty, the bank takes the difference from your principal. This means you could end up with less money than you deposited, even though you earned interest.

Some banks, particularly online banks, offer CDs with no early withdrawal penalty or a very small one. These are less common and usually come with a slightly lower rate. If you think there is any chance you might need the money, it is worth comparing the rate difference against the peace of mind.

FDIC insurance and what it protects

Money in a CD at an FDIC-insured bank is protected up to $250,000 per depositor per bank. This means if the bank fails, you get your money back up to that limit. Credit unions offer the same protection through the NCUA, also up to $250,000 per account owner per institution.

The insurance covers the principal plus accrued interest. If you have a $100,000 CD earning 5% and the bank fails after one year, you are covered for the full $105,000.

If you have more than $250,000 to deposit, you can spread it across multiple banks or multiple account owners (for example, one CD in your name and one in your spouse's name at the same bank) to stay within the insurance limit at each institution.

CD ladders and how they solve the lock-in problem

One common strategy to balance higher CD rates with access to your money is called a CD ladder. Instead of putting all your money into one CD with a long term, you buy several CDs with different maturity dates.

For example, you might buy five $10,000 CDs: one that matures in 1 year, one in 2 years, one in 3 years, one in 4 years, and one in 5 years. Every year, one CD matures and you can withdraw the money, reinvest it, or spend it. You still earn the higher rates that longer-term CDs pay, but you have regular access to portions of your money without paying an early withdrawal penalty.

A ladder works best when you have a lump sum to invest and you do not know exactly when you will need the money. It also lets you take advantage of rising rates: when a CD matures and rates have gone up, you can buy a new five-year CD at the higher rate.

Comparing CDs to other savings options

A regular savings account is liquid — you can withdraw anytime without penalty — but the interest rate is much lower, often under 0.5% annually. A money market account sits in the middle: it pays more than savings but less than a CD, and you can usually write checks or make withdrawals, though there may be limits.

A CD pays the most interest of these three options because you are giving up access. The tradeoff is worth it if you have money you will not need for at least several months and you want a may provide return. If you might need the money sooner, a savings account or money market account is safer even if the rate is lower.

Bonds and bond funds can also pay higher rates than CDs, but they carry market risk — the value fluctuates and you could lose principal. CDs have no market risk; you always get back what you put in plus the agreed interest (assuming the bank is FDIC-insured and you stay within the insurance limit).

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. Some online banks offer CDs with no penalty or a very low penalty, though these typically pay a slightly lower rate. Check your CD agreement to see the exact penalty before you open the account.

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

A savings account lets you withdraw anytime without penalty but pays a much lower interest rate. A CD locks your money for a set term and pays a higher rate in exchange. Choose a savings account if you need access to the money; choose a CD if you can leave it untouched for months or years.

Do I have to renew my CD when it matures?

No. Most banks automatically renew CDs at maturity unless you tell them not to. Contact your bank a week or two before your maturity date if you want to withdraw the money or move it elsewhere. If you miss the renewal window and do not opt out, your money will be locked in a new CD at the current rate.

What happens if the bank fails?

Your CD is insured up to $250,000 by the FDIC (or NCUA for credit unions). If the bank fails, you receive your principal plus accrued interest up to that limit. To be fully protected with more than $250,000, spread your money across multiple banks or multiple account owners.

Is a CD a good place to put an emergency fund?

No. Emergency funds should be in a savings account or money market account where you can access the money when ready without penalty. CDs are best for money you know you will not need for several months or longer. If you withdraw early to cover an emergency, you lose interest to the penalty.