A certificate of deposit is a savings account where you lock away money for a set time in exchange for a may provide interest rate

A certificate of deposit (CD) is an agreement between you and a bank or credit union. You give them a sum of money—say $5,000—and promise not to touch it for a fixed period, usually three months to five years. In return, they pay you a fixed interest rate, which is almost always higher than what a regular savings account offers. When the time is up, you get your original money back plus the interest earned.

The trade-off is straightforward: you lose access to your money during the CD term. If you withdraw before the term ends, the bank charges an early withdrawal penalty, which is typically a few months' worth of interest. This penalty is why CDs work best for money you know you won't need soon.

CDs are insured by the Federal Deposit Insurance Corporation (FDIC) if held at a bank, or by the National Credit Union Administration (NCUA) if held at a credit union. This means if the bank fails, your money up to $250,000 is protected. That protection makes CDs one of the safest places to put savings.

Key Takeaways

  • A CD locks your money away for a set term—typically three months to five years—in exchange for a higher interest rate than a savings account.
  • You pay an early withdrawal penalty if you take your money out before the term ends, usually equal to a few months of interest.
  • CDs are FDIC-insured at banks and NCUA-insured at credit unions, protecting your money up to $250,000 if the institution fails.
  • The interest rate on a CD is fixed for the entire term, so you know exactly how much you will earn regardless of what happens to market rates.
  • CDs work best for money you won't need for several months or years and want to grow safely without taking investment risk.

How the interest rate and term length work together

The longer you agree to lock your money away, the higher the interest rate the bank will offer you. A three-month CD might pay 4.5 percent, while a five-year CD from the same bank might pay 5.2 percent. The bank is willing to pay more because they get to use your money for longer without you asking for it back.

The interest rate is fixed, meaning it does not change. If you open a two-year CD at 4.8 percent, you will earn 4.8 percent every year for two years, even if market rates drop to 2 percent or rise to 6 percent. That certainty is valuable when rates are falling, but it can feel like a missed opportunity if rates climb after you buy the CD.

Interest is usually paid monthly or at maturity (when the term ends). Some CDs compound daily, which means interest earns interest, and you end up with slightly more than straightforward math would suggest. Always ask the bank whether interest compounds and how often.

What happens when your CD reaches maturity

When the term ends, your CD reaches maturity. The bank sends you a notice a few weeks before, telling you what will happen next. You have three choices: cash out and take your money, open a new CD with the bank, or let the bank automatically renew your CD for another term at whatever the current rate is.

If you do nothing, most banks will automatically renew your CD at the new rate. This can be good or bad depending on whether rates have risen or fallen. If rates have dropped, you might want to shop around and move your money to a bank offering a better rate. If rates have climbed, automatic renewal locks you in at the old rate.

The best practice is to mark the maturity date on your calendar and decide in advance what you want to do. That way you are not caught off guard by an automatic renewal you did not want.

Early withdrawal penalties and when they explore

If you need your money before the CD matures, you can withdraw it, but the bank will charge a penalty. The penalty amount varies by bank and by CD term. A short-term CD (three to six months) might have a penalty of one month's interest. A longer CD (three to five years) might have a penalty of three to six months' interest.

Some banks offer no-penalty CDs, which let you withdraw without a penalty, but they pay lower interest rates in exchange. These are worth considering if you are not certain you can leave the money untouched for the full term.

The penalty is calculated based on the interest rate you locked in, not the current rate. So if you opened a CD at 5 percent and rates have since dropped to 3 percent, your penalty is still based on 5 percent. This is one reason early withdrawal can be expensive—you lose both the interest you would have earned and the penalty itself.

CDs versus savings accounts and money market accounts

A regular savings account has no term and no penalty for withdrawal, but it pays much lower interest—often less than 1 percent. You can take your money out whenever you want, which is convenient but costs you in earnings.

A money market account sits between a savings account and a CD. It pays higher interest than savings (usually 2 to 4 percent) but lower than a CD, and you can withdraw money without penalty, though some accounts limit how many withdrawals you can make per month. Money market accounts are good if you want some growth but need occasional access.

A CD is best if you have money you genuinely will not need for months or years and want the highest may provide rate. The tradeoff is that your money is locked away. If you might need the money sooner, a savings or money market account is safer, even if it pays less.

How to choose a CD that fits your situation

Start by deciding how long you can afford to lock your money away. If you have an emergency fund, do not put it in a CD—keep that in a savings account where you can access it when ready. CDs work best for money beyond your emergency fund: a down payment you are saving for in two years, a vacation fund for next summer, or money you are setting aside for a known expense.

Once you know your time horizon, shop around. Banks and credit unions offer different rates, and rates change daily. A bank offering 4.2 percent on a one-year CD one week might offer 4.5 percent the next. Online banks often pay higher rates than brick-and-mortar banks because they have lower overhead costs. Websites like Bankrate and DepositAccounts let you compare rates across many institutions.

Check whether the bank or credit union is FDIC or NCUA insured, and confirm that your deposit amount is within the $250,000 protection limit. If you have more than $250,000 to invest, you can open CDs at multiple institutions to stay within the insurance cap.

Frequently Asked Questions

Can I withdraw money from a CD before it matures?

Yes, but you will pay an early withdrawal penalty, usually equal to a few months of interest. The exact penalty depends on the bank and the CD term. Some banks offer no-penalty CDs that let you withdraw without a fee, but they pay lower interest rates.

What happens if the bank fails while I have a CD there?

Your money is protected up to $250,000 by the FDIC (at banks) or NCUA (at credit unions). If the bank fails, the insurance agency pays you your full balance plus any accrued interest. This protection applies to CDs just as it does to savings accounts.

Is the interest rate on a CD may provide?

Yes. The rate is fixed for the entire term, so you know exactly how much you will earn. The rate does not change even if market rates rise or fall. When your CD matures, the new rate (if you renew) will be whatever the bank is offering at that time.

What is the difference between a CD and a bond?

A CD is issued by a bank or credit union and is FDIC or NCUA insured. A bond is issued by a government or company and is not insured. Bonds can fluctuate in value before maturity, while CDs have a fixed value. CDs are simpler and safer for most people saving for a specific goal.

Should I open a CD if interest rates are expected to rise?

If rates are likely to climb, a short-term CD (three to six months) lets you lock in the current rate and then move to a higher-rate CD when it matures. A long-term CD locks you in at a lower rate for years. However, no one can predict rates with certainty, so choose a term based on when you actually need the money, not on rate forecasts.