What a Certificate of Deposit Is

A Certificate of Deposit (CD) is a savings product offered by banks and credit unions where you deposit money for a fixed period — typically three months to five years — in exchange for a may provide interest rate. The bank holds your money and pays you interest, but you agree not to withdraw it until the term ends. If you withdraw early, you pay a penalty, usually a portion of the interest you would have earned.

CDs are different from regular savings accounts because the interest rate is locked in from day one and does not change. A savings account interest rate can go up or down, and you can withdraw money whenever you want. With a CD, you trade flexibility for a higher, predictable return on your money.

Key Takeaways

  • A CD requires you to leave money deposited for a set time period, ranging from a few months to several years, in exchange for a fixed interest rate.
  • Interest rates on CDs are higher than regular savings accounts because the bank knows exactly how long it will hold your money.
  • Withdrawing money before the CD matures triggers an early withdrawal penalty, which typically reduces the interest you earn.
  • CDs are insured by the FDIC (at banks) or NCUA (at credit unions) up to $250,000, making them a low-risk way to save.
  • You can set up a CD to receive interest payments by direct deposit, or have the interest added to the CD balance itself.

How Interest Rates and Terms Work

CD interest rates vary based on how long you commit your money and the current economic environment. A three-month CD typically pays less interest than a one-year CD, which pays less than a five-year CD. The longer you lock in your money, the higher the rate the bank usually offers.

Interest can be paid to you in different ways. Some CDs pay interest monthly or quarterly, which can be sent to your checking account by direct deposit. Other CDs add the interest to your balance, so you earn interest on top of interest — this is called compounding. When the CD matures (the term ends), you receive your original deposit plus all the interest earned.

Interest rates change based on what the Federal Reserve does with its benchmark rate. When the Fed raises rates, new CDs tend to pay more. When the Fed lowers rates, new CDs pay less. If you lock in a rate today, that rate stays the same for the entire term, even if rates rise or fall later.

Early Withdrawal Penalties and What They Cost

If you need your money before the CD matures, you can withdraw it, but you will pay a penalty. The penalty amount varies by bank and CD term. A common penalty is three to six months of interest, though some banks charge a flat fee or a percentage of your deposit.

For example, if you have a one-year CD earning $120 in interest and you withdraw after six months, the bank might deduct three months of interest ($30) as a penalty. You would receive your original deposit plus $90 in interest instead of the full $120. Some CDs have no penalty if you withdraw within a short window after opening, but this is rare.

Before opening a CD, ask the bank or credit union what the early withdrawal penalty is. This matters if you think you might need the money sooner than planned. Some people open shorter-term CDs (three or six months) specifically to avoid being locked in for too long.

FDIC and NCUA Insurance Protection

Money in a CD at a bank is protected by FDIC insurance (Federal Deposit Insurance Corporation) up to $250,000 per depositor, per bank. Money in a CD at a credit union is protected by NCUA insurance (National Credit Union Administration) up to the same amount. This means if the bank or credit union fails, the government guarantees you will get your money back.

The $250,000 limit applies per person, per institution. If you have $200,000 in a CD at Bank A and $200,000 in a CD at Bank B, both are fully insured. But if you have $300,000 in CDs at the same bank, only $250,000 is covered. Joint accounts (held by two people together) have a separate $250,000 limit, so a couple can each have $250,000 insured at the same bank.

CD Laddering and Building a CD Strategy

Some people use a strategy called CD laddering to balance higher interest rates with regular access to money. Instead of putting all your savings into one five-year CD, you open multiple CDs with different maturity dates — for example, one that matures in one year, one in two years, and one in three years. As each CD matures, you can withdraw the money, reinvest it in a new longer-term CD, or move it elsewhere.

This approach gives you money coming available at regular intervals while still locking in higher rates for longer periods. It also protects you if interest rates rise — when a CD matures, you can open a new one at the current (possibly higher) rate instead of being stuck with an old rate for years.

Another strategy is to open a CD with interest paid by direct deposit. This way, you receive interest payments regularly in your checking account while your original deposit stays locked in and earning more interest. This works well if you want to use the interest income for living expenses while keeping the principal growing.

When a CD Makes Sense Versus Other Savings Options

A CD is a good choice if you have money you will not need for several months or years and want a may provide return with no risk. CDs pay more than savings accounts, and the rate does not change. This makes them useful for saving toward a specific goal with a known timeline — like a down payment you plan to make in two years, or money you are setting aside for a major expense.

A CD is not the right choice if you might need the money sooner, because the early withdrawal penalty will cost you. It is also not ideal if you want flexibility to move money around or if you expect interest rates to rise significantly — you would be locked into a lower rate.

Money market accounts and high-yield savings accounts offer more flexibility than CDs and currently pay competitive interest rates. However, their rates can change at any time. Treasury bills (short-term government bonds) are another option for people with larger amounts to invest. The choice depends on how long you can commit your money and how much certainty you want about your return.

How to Open a CD and What Information You Need

To open a CD, you contact a bank or credit union and tell them the amount you want to deposit, the term length you prefer, and how you want interest paid. You will need to provide your name, address, Social Security number, and a way to fund the CD — usually by transferring money from a checking or savings account, or by mailing a check.

Most banks let you open a CD online, by phone, or in person. The process typically takes a few minutes. You will receive a CD agreement that states the interest rate, maturity date, penalty amount, and how interest will be paid. Keep this document — you will need it if you want to withdraw early or if you have questions when the CD matures.

When your CD matures, the bank will notify you. You then decide whether to withdraw the money, let it automatically renew into a new CD at the current rate, or move it somewhere else. If you do nothing, many banks automatically renew your CD into a new term at the current rate, so check your agreement to understand what happens at maturity.

Frequently Asked Questions

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

No, most CDs do not allow you to add money after opening. You deposit the full amount upfront. If you want to save more, you would open a separate CD. Some banks offer "add-on CDs" that let you deposit additional funds during the term, but these are less common and may have different terms.

What happens if I need my money before the CD matures?

You can withdraw it, but you will pay an early withdrawal penalty. The penalty is usually a few months of interest. Before opening a CD, ask the bank what the penalty is so you know the cost if you need the money early. Some banks offer no-penalty CDs, though these typically pay lower interest rates.

Is the interest from a CD taxable?

Yes, CD interest is taxable income. 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. The interest is taxed as ordinary income, not as capital gains, so it is taxed at your regular income tax rate.

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

A CD locks your money in for a set period and pays a fixed, higher interest rate. A savings account lets you withdraw money anytime but pays lower interest that can change. CDs are better if you have money you will not need soon; savings accounts are better if you need access to your money.

Can I have a CD at multiple banks?

Yes, and each CD at each bank is separately insured by the FDIC up to $250,000. This means you can have $250,000 in CDs at Bank A and $250,000 at Bank B, and both are fully protected. This is a way to save larger amounts while keeping everything insured.