What a Certificate of Deposit is and how it differs from a savings account

A Certificate of Deposit (CD) is a savings product where you give a bank or credit union a lump sum of money for a fixed period — typically three months to five years — in exchange for a may provide interest rate. Unlike a regular savings account, you cannot withdraw the money before that period ends without paying a penalty, usually a loss of some or all of the interest you would have earned.

The bank pays you interest at a rate set when you open the CD. That rate does not change, even if interest rates in the economy rise or fall. When the CD reaches its maturity date, you get back your original deposit plus the interest earned. At that point you can withdraw the money, let it roll over into a new CD at the current rate, or move it elsewhere.

The tradeoff is simple: you lock up your money for a set time, and in return the bank guarantees you a higher interest rate than you would get in a savings account. If you need the money before maturity, you pay a penalty — often three to six months of interest, though it varies by institution and CD length.

Key Takeaways

  • CDs pay a fixed interest rate for a fixed time period, ranging from three months to five years or longer, and that rate does not change.
  • You cannot withdraw money from a CD before its maturity date without paying a penalty, which is usually a loss of some or all of the interest earned.
  • CD rates vary by bank, by length of the CD term, and by how much money you deposit, so shopping around can mean hundreds of dollars in difference.
  • When a CD matures, you have a short window — usually 10 days — to decide whether to withdraw, roll over into a new CD, or move the money to another institution.
  • CDs are insured by the FDIC (at banks) or NCUA (at credit unions) up to $250,000 per depositor per institution, so your principal is protected even if the bank fails.

How CD interest rates are set and what affects the rate you receive

Banks set their own CD rates based on what the Federal Reserve does with short-term interest rates, what other banks are offering, and how much money they need to attract. When the Fed raises rates, banks typically raise CD rates within weeks. When the Fed cuts rates, CD rates fall more slowly — banks hold rates steady longer to keep deposits from leaving.

The length of the CD term directly affects the rate. A three-month CD will pay less than a one-year CD, which will pay less than a five-year CD. The longer you lock your money away, the more interest the bank pays you. However, this is not always true: sometimes the market inverts and short-term rates are higher than long-term rates, which happens when investors expect the economy to weaken.

The amount you deposit also matters. Some banks offer higher rates on larger deposits — $10,000 or $25,000 or more. Others offer the same rate regardless of deposit size. Credit unions sometimes offer better rates than banks, especially if you are a member. Online banks almost always offer higher CD rates than brick-and-mortar banks because they have lower overhead costs.

Penalties for early withdrawal and what happens at maturity

The penalty for withdrawing money before a CD matures is set by the bank when you open the account. Common penalties are three months of interest, six months of interest, or a percentage of the deposit itself. A few banks charge no penalty, but they pay lower rates to compensate. Always ask what the penalty is before you open a CD — it should be in the disclosure document the bank gives you.

If you withdraw early and the penalty exceeds the interest you have earned, you lose part of your original deposit. For example, if you open a one-year CD with $5,000 at 4.5% interest and withdraw after three months, you earn roughly $56 in interest. If the penalty is six months of interest ($112), you pay $56 out of your principal, so you get back $5,000 minus $56, or $4,944.

When a CD reaches maturity, the bank sends you a notice — usually 10 to 30 days before the date. You then have a window, typically 10 days, to decide what to do. If you do nothing, most banks automatically roll the money into a new CD at the current rate. If you want to withdraw or move the money, you must act within that window or you will be locked in again.

Shopping for CDs: where to look and what to compare

CD rates change constantly, so the rate you see today may not be available tomorrow. Online comparison sites like Bankrate, DepositAccounts, and CD Ladder show current rates from hundreds of banks and credit unions. These sites are free and do not require you to open an account to see the rates.

When comparing, look at the annual percentage yield (APY), not just the interest rate. APY accounts for how often the bank compounds interest — daily, monthly, or quarterly — so it shows the true return. A CD with a 4.75% APY will earn more than one with a 4.70% APY, even if the difference seems small.

Also compare the early withdrawal penalty across banks. A bank offering 4.8% with a six-month penalty may be worse than one offering 4.6% with a three-month penalty, depending on how confident you are that you will not need the money. Read the fine print: some banks charge a flat dollar amount, others charge a percentage of interest, and a few charge a percentage of principal.

CD ladders and how they let you access money regularly

A CD ladder is a strategy where you open multiple CDs with different maturity dates instead of one large CD. For example, you might open five one-year CDs, each with $2,000, but stagger the start dates so one matures every few months. As each CD matures, you can withdraw the money, spend it, or roll it into a new five-year CD to keep the ladder going.

Laddering solves the problem of locking all your money away for years. It also lets you take advantage of rising interest rates: when rates go up, you can roll maturing CDs into new ones at the higher rate, rather than being stuck with an old rate for years. The downside is that you need enough money to open multiple CDs, and you have to track multiple maturity dates.

A simpler version is to open two or three CDs with different terms — say, a one-year, a three-year, and a five-year — so you have access to some money sooner while still locking in longer-term rates. This gives you some flexibility without the complexity of managing five or ten separate accounts.

FDIC and NCUA insurance: what is protected if the bank fails

Money in a CD is insured by the FDIC (Federal Deposit Insurance Corporation) if you open it at a bank, or by the NCUA (National Credit Union Administration) if you open it at a credit union. The insurance covers up to $250,000 per depositor per institution. If the bank or credit union fails, you get your money back, up to that limit.

The $250,000 limit applies to all your deposits at the same institution combined — checking, savings, CDs, and money market accounts all count toward the same limit. If you have $150,000 in a CD and $100,000 in a savings account at the same bank, only $250,000 is insured. The extra $0 is not protected.

If you want to insure more than $250,000, you can open accounts at different banks or credit unions. Each institution's insurance is separate. You can also open CDs in different ownership categories at the same bank — for example, one in your name alone and one in a joint account with your spouse — and each category gets its own $250,000 coverage.

When a CD makes sense and when it does not

A CD makes sense if you have money you will not need for a specific period and you want a may provide return with no risk. If you know you will need $5,000 in two years for a car down payment, a two-year CD locks in a rate and keeps you from spending the money. CDs also make sense if you are risk-averse and prefer certainty over the possibility of higher returns from stocks or bonds.

A CD does not make sense if you might need the money before maturity, because the early withdrawal penalty will eat into your gains. It also does not make sense if you think interest rates will rise significantly in the near future — you will be locked into a lower rate. In a rising-rate environment, a shorter CD or a savings account with no withdrawal restrictions may be better.

CDs also do not protect you from inflation. If you lock in a 4% CD rate and inflation runs at 3.5%, your real return is only 0.5%. Over five years, that means your money loses purchasing power. Before opening a long-term CD, think about whether the rate keeps pace with inflation and whether you could earn more elsewhere.

Frequently Asked Questions

Can I withdraw money from a CD before it matures?

Yes, but you will pay a penalty set by the bank. The penalty is usually three to six months of interest, though some banks charge a percentage of your deposit instead. If the penalty exceeds the interest you have earned, you lose part of your original money. Check the penalty terms before you open the CD.

What happens to my CD when it reaches maturity?

The bank sends you a notice 10 to 30 days before maturity. You then have a window — usually 10 days — to withdraw the money, move it to another bank, or let it roll over into a new CD at the current rate. If you do nothing, most banks automatically roll it over.

Are CDs safe if the bank goes out of business?

Yes. CDs at banks are insured by the FDIC up to $250,000 per depositor per institution. CDs at credit unions are insured by the NCUA up to the same limit. If the bank or credit union fails, you get your money back, including accrued interest, up to the insurance limit.

Why would I choose a CD over a high-yield savings account?

CDs typically pay higher rates than savings accounts because you agree to lock your money away. If you do not need access to the money, a CD can earn you more interest. However, savings accounts have no early withdrawal penalty, so they are better if you might need the money sooner.

Do I have to pay taxes on CD interest?

Yes. CD interest is taxable income in the year it is earned, even if you do not withdraw the money. 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.