What a Certificate of Deposit Does

A certificate of deposit (CD) is an agreement between you and a bank or credit union: you give them a sum of money for a fixed period of time, and they pay you a set interest rate on that money. When the time is up, you get your original deposit back plus the interest earned. The catch is that you cannot touch the money before that date without paying a penalty—usually a loss of some or all of the interest you would have earned.

CDs are different from regular savings accounts because the interest rate is locked in and typically higher. A savings account lets you withdraw money whenever you want, but the interest rate can change monthly. A CD trades that flexibility for a better rate, as long as you can leave the money untouched.

Key Takeaways

  • You deposit a fixed amount of money for a set term—commonly three months to five years—and receive a may provide interest rate for that entire period.
  • The bank pays you interest on top of your deposit, and you receive both the original amount and the earnings when the term ends.
  • Withdrawing money before the term ends triggers an early withdrawal penalty, which typically reduces or eliminates the interest you earned.
  • CD rates are higher than savings account rates because the bank knows exactly how long it can use your money.
  • Your deposit is insured by the FDIC (at banks) or NCUA (at credit unions) up to $250,000, so your principal is protected even if the institution fails.

How the Term and Interest Rate Work Together

When you open a CD, you choose how long to lock up your money. Common terms are three months, six months, one year, two years, three years, and five years. The longer the term, the higher the interest rate the bank will offer you—because they want to keep your money longer and can lend it out for longer periods themselves.

The interest rate you receive is fixed for the entire term. If you buy a one-year CD at 4.5 percent, you will earn 4.5 percent for the full twelve months, even if rates drop to 2 percent next month or rise to 6 percent. That certainty is the main reason people choose CDs: you know exactly what you will earn.

Interest on a CD is usually compounded daily or monthly, meaning the bank calculates interest on your deposit plus any interest already earned. When your term ends, the bank deposits the full amount—original deposit plus all accumulated interest—into your account.

What Happens When Your CD Matures

The date your CD term ends is called the maturity date. On that date, your money becomes available to withdraw without penalty. Most banks give you a grace period of seven to ten days after maturity during which you can decide what to do with the funds.

You have three main options when a CD matures. First, you can withdraw the money and use it however you want. Second, you can let the bank automatically renew the CD for another term at whatever the current rate is—this happens unless you tell the bank to stop. Third, you can move the money to a different CD with a different term or at a different bank that offers a better rate.

If you do nothing and the bank renews your CD automatically, the new rate may be lower or higher than what you had before. For this reason, many people set a calendar reminder for a few days before maturity so they can shop around and decide whether to stay or move their money.

Early Withdrawal Penalties and When They explore

If you need your money before the maturity date, the bank will let you withdraw it, but you will pay an early withdrawal penalty. This penalty is usually a certain number of months' worth of interest. For example, a three-month CD might have a penalty of one month's interest, and a five-year CD might have a penalty of six months' interest.

The penalty is calculated based on the interest you actually earned, not the full amount you would have earned if you had held the CD to maturity. If you withdraw after six months of a one-year CD that pays 4 percent annually, you have earned roughly 2 percent in interest. If the penalty is three months' interest, you lose about 1 percent of your deposit.

Some banks offer no-penalty CDs that let you withdraw your money early without losing interest, though the interest rate on these is lower than on regular CDs. These are worth considering if you think you might need the money but want a better rate than a savings account offers.

How CD Rates Compare to Other Savings Options

CD rates are higher than savings account rates at the same bank because you are giving up access to your money. A typical savings account might pay 0.01 to 0.5 percent, while a one-year CD at the same bank might pay 4 to 5 percent. The longer the term, the higher the rate usually climbs.

Money market accounts fall somewhere in between: they pay more than savings accounts but less than CDs, and they usually let you write checks or make a few withdrawals per month. High-yield savings accounts at online banks can sometimes match or beat CD rates while keeping your money accessible, so it is worth comparing before you decide.

The trade-off is always the same: higher interest in exchange for less flexibility. If you know you will not need the money for a specific period, a CD locks in a good rate. If you might need it sooner, a savings account or money market account is safer.

FDIC Insurance and Your Principal

Your deposit in a CD is protected by the FDIC (Federal Deposit Insurance Corporation) if you opened it at a bank, or by the NCUA (National Credit Union Administration) if you opened it at a credit union. This insurance covers up to $250,000 per depositor, per institution, per account type.

This means if the bank fails, you will get your original deposit back—up to $250,000—even if the bank cannot pay it. The interest you earned is also covered. This protection does not depend on the bank's health or the economy; it is a federal may provide.

If you have more than $250,000 to deposit, you can spread it across multiple banks or multiple account types (like a CD in your name and a CD in a joint account) to stay within the insurance limit at each institution. The FDIC website has a calculator to help you verify your coverage.

Strategies for Using CDs Effectively

One common strategy is the 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 one-year CDs, each maturing in a different year. Each year, one CD matures and you can withdraw the money or reinvest it at the current rate. This gives you regular access to some of your money while keeping most of it locked in at higher rates.

Another approach is to match the CD term to when you know you will need the money. If you are saving for a down payment on a house in three years, a three-year CD lets you earn a may provide rate without the risk that you will be tempted to spend the money early.

You can also shop around between banks. CD rates vary significantly—a one-year CD might pay 4 percent at one bank and 5 percent at another. Online banks often offer higher rates than brick-and-mortar banks because they have lower overhead costs. Spending an hour comparing rates across five banks can earn you hundreds of dollars in extra interest over the life of the CD.

Frequently Asked Questions

Can I withdraw money from a CD before it matures?

Yes, but you will pay an early withdrawal penalty that reduces or eliminates your interest earnings. The penalty amount depends on the bank and the CD term—typically three to six months of interest. Some banks offer no-penalty CDs that let you withdraw without losing interest, though the rate is lower.

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

A savings account lets you withdraw money anytime without penalty but pays very low interest. A CD locks your money for a set term and pays much higher interest, but you lose interest if you withdraw early. Choose a CD if you can leave the money untouched; choose a savings account if you need flexibility.

Do I have to pay taxes on CD interest?

Yes, CD interest is taxable 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. You report this on your tax return just like any other interest income.

What happens if I do nothing when my CD matures?

Most banks automatically renew your CD for another term at the current interest rate. You usually have a grace period of seven to ten days after maturity to cancel the renewal and withdraw your money instead. Set a reminder before maturity so you can decide whether to renew or shop for a better rate elsewhere.

Is my money safe in a CD if the bank fails?

Yes, up to $250,000. The FDIC insures deposits at banks and the NCUA insures deposits at credit unions. If the institution fails, you will receive your full deposit plus earned interest, up to the insurance limit, from the federal government.