CD stands for Certificate of Deposit

A Certificate of Deposit is a savings product where you give a bank a lump sum of money and agree to leave it untouched for a set period of time. In exchange, the bank pays you a fixed interest rate that is usually higher than what you'd earn in a regular savings account. When the time period ends—called the maturity date—you get your original money back plus the interest.

The trade-off is straightforward: you lock up your money for a defined period (anywhere from a few months to several years), and the bank rewards you with a better interest rate. If you need the money before the maturity date, you'll typically pay an early withdrawal penalty, which means the bank deducts a fee from your balance.

Key Takeaways

  • A CD is a savings account where you deposit money for a fixed time period and receive a may provide interest rate in return.
  • The interest rate on a CD is locked in when you open it and does not change, even if the bank's rates go up or down.
  • Withdrawing money before the maturity date triggers a penalty that reduces your earnings, so CDs work best for money you won't need soon.
  • CDs are FDIC-insured at most banks, meaning your deposit is protected up to $250,000 even if the bank fails.

How the interest rate and maturity date work

When you open a CD, you choose both the amount you deposit and the term length. Common terms are 3 months, 6 months, 1 year, 3 years, and 5 years. The longer the term, the higher the interest rate the bank typically offers—this is their incentive for you to lock your money away longer.

The interest rate is fixed, meaning it stays the same for the entire term, regardless of what happens to the bank's other rates. If you open a 2-year CD at 4.5% and the bank raises its rates to 5.5% next month, your CD still earns 4.5%. This protects you from rate drops but also means you miss out if rates rise.

On the maturity date, your CD automatically matures. The bank then gives you three options: withdraw the money, roll it into a new CD at the current rate, or move it to another account. If you do nothing, many banks automatically renew your CD at whatever their current rate is for the same term length.

What happens if you need the money early

The main drawback of a CD is the early withdrawal penalty. If you take money out before the maturity date, the bank charges a fee that comes out of your balance. The penalty amount varies by bank and by term length—a 3-month CD might have a penalty of one month's interest, while a 5-year CD might have a penalty of six months' interest or more.

This penalty can eat into or even eliminate your earnings. For example, if you deposit $5,000 in a 1-year CD earning 4% interest, you'd earn $200. But if you withdraw after 6 months and the penalty is $150, you only keep $50 of your interest. In some cases, if you withdraw very early from a long-term CD, the penalty could exceed your interest, meaning you'd actually lose part of your original deposit.

Before opening a CD, check the bank's early withdrawal penalty policy. Some banks are more lenient than others, and a few offer "no-penalty CDs" that let you withdraw without a fee—though these typically pay lower interest rates.

FDIC insurance and safety

CDs at most banks are protected by FDIC insurance, which means if the bank fails, the government guarantees your deposit up to $250,000. This protection applies to each account holder at each bank separately, so if you have multiple CDs at the same bank, they're all covered as long as the total doesn't exceed $250,000.

Credit unions offer a similar product called a Share Certificate, which works the same way but is insured by the NCUA instead of the FDIC. The coverage limit is also $250,000 per account holder per institution.

CD laddering and when CDs make sense

One strategy people use to balance the higher rates of CDs with access to their money is called CD laddering. Instead of putting all your money in one long-term CD, you open several CDs with different maturity dates. For example, you might open five 1-year CDs, each with $1,000. Every year, one matures and you can withdraw it or roll it into a new 5-year CD. This way, you always have some money coming available while still earning higher rates on the longer-term portions.

CDs work best for money you know you won't need for a specific period—an emergency fund that's already fully funded, a down payment you're saving for a house purchase in three years, or a bonus you want to set aside. They're less useful for money you might need unexpectedly, because the penalty makes early withdrawal expensive.

How CD rates compare to other savings products

A regular savings account at a bank typically earns much less interest than a CD—often less than 0.5% annually. A money market account falls somewhere in the middle and usually lets you withdraw money without penalty. A high-yield savings account at an online bank can sometimes match or beat CD rates while keeping your money accessible, though rates on both products change frequently.

The choice between a CD and another savings product depends on your timeline and whether you might need the money. If you're certain you won't touch the money for a set period, a CD usually pays more. If you want flexibility, a high-yield savings account or money market account may be worth the lower rate.

Frequently Asked Questions

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

No. Once you open a CD, the deposit amount is fixed. You cannot add funds to it. If you want to deposit more money, you'd need to open a separate CD. Some banks let you open multiple CDs at the same time with different amounts.

What happens to my CD when it matures?

Your bank will notify you before the maturity date. You can then withdraw the money, roll it into a new CD, or move it to another account. If you don't do anything, most banks automatically renew it into a new CD at their current rate for the same term length. Check your bank's policy so you're not surprised.

Is the interest on a CD taxable?

Yes. The interest you earn on a CD is taxable income in the year it's credited to your account. Your bank will send you a 1099-INT form at tax time showing how much interest you earned. This is true even if you don't withdraw the money.

Can I have a CD at more than one bank?

Yes. You can open CDs at multiple banks, and each one is separately insured up to $250,000 by the FDIC. This is useful if you want to spread your money across institutions or take advantage of different rates different banks offer.

What's the difference between a CD and a savings bond?

A CD is issued by a bank and insured by the FDIC. A savings bond is issued by the U.S. government and backed by the full faith and credit of the government. Savings bonds typically have longer terms and different tax treatment, but both lock up your money for a set period in exchange for a fixed return.