What a Certificate of Deposit Account Is

A Certificate of Deposit (CD) is a savings account where you agree to leave money untouched for a set period — usually three months to five years — in exchange for a fixed interest rate. The bank pays you that rate for the entire term, regardless of whether market rates go up or down. When the term ends, you get your original deposit back plus the interest earned.

CDs are different from regular savings accounts because the interest rate is locked in and usually higher. The tradeoff is that you cannot withdraw the money early without paying a penalty. That penalty varies by bank and CD type, but it typically costs you some or all of the interest you would have earned.

CDs are offered by banks, credit unions, and some online financial institutions. The terms, interest rates, and early withdrawal penalties all differ between institutions, so comparing options before you open one matters.

Key Takeaways

  • A CD locks your money in for a fixed term in exchange for a may provide interest rate that does not change.
  • Early withdrawal usually costs you a penalty, often equal to several months of interest, so only deposit money you will not need during the term.
  • Interest rates and penalty amounts vary significantly between banks, so compare several institutions before opening a CD.
  • CDs are insured by the FDIC (at banks) or NCUA (at credit unions) up to $250,000 per depositor per institution, so your money is protected even if the institution fails.
  • When your CD matures, you can withdraw the money, open a new CD, or let it automatically roll over into another CD at the current rate.

How Interest Rates and Terms Work

The interest rate on a CD is set when you open it and stays the same for the entire term. A bank might offer 4.5 percent on a one-year CD and 4.8 percent on a three-year CD. Longer terms usually come with higher rates because the bank has your money for longer and can lend it out with more certainty.

Interest compounds, meaning you earn interest on your interest. How often it compounds — daily, monthly, or quarterly — affects how much you end up with. A CD that compounds daily will earn slightly more than one that compounds quarterly, even at the same stated rate. Banks must disclose the Annual Percentage Yield (APY), which shows the actual return after compounding is factored in.

Rates change based on what the Federal Reserve does with its benchmark rate. When the Fed raises rates, new CDs typically offer higher rates. When the Fed cuts rates, new CDs offer lower rates. Your existing CD rate does not change, but when it matures, the new rate available may be higher or lower than what you had.

Early Withdrawal Penalties and What They Cost

If you withdraw money from a CD before the term ends, the bank charges an early withdrawal penalty. This penalty is usually stated as a number of months of interest. A CD with a three-month penalty means you lose three months' worth of the interest you earned. If you earned $100 in interest but the penalty is three months, you lose $75 and keep only $25.

Some CDs have higher penalties than others. A one-year CD might have a three-month penalty, while a five-year CD might have a nine-month or twelve-month penalty. Online banks sometimes offer lower penalties than traditional banks. Before you open a CD, ask the bank exactly what the penalty is — get it in writing — so you know the cost if you need the money early.

In rare cases, if you withdraw early and the penalty is larger than the interest you earned, the bank takes the difference from your principal. This means you get back less than you deposited. This is why it is critical to only put money in a CD that you are confident you will not need.

What Happens When Your CD Matures

When your CD term ends, you enter a grace period — usually five to ten days — during which you can decide what to do. You can withdraw the money and close the CD, move it to a different account, or let it roll over into a new CD.

Many banks automatically roll your CD into a new one at the current rate if you do nothing during the grace period. This is convenient if you want to keep the money invested, but the new rate may be lower than what you had. If rates have dropped significantly, you might want to withdraw the money and shop around instead of accepting the automatic rollover.

Some banks notify you by mail or email when your CD is about to mature, but not all do. Mark your calendar or set a reminder so you do not miss the grace period and accidentally roll into a new CD you did not intend to open.

FDIC and NCUA Insurance Protection

Money in a CD at a bank is protected by FDIC insurance up to $250,000 per depositor per bank. Money in a CD at a credit union is protected by NCUA insurance up to $250,000 per depositor per credit union. This means if the institution fails, the government backs your deposit.

The $250,000 limit applies to your total deposits at that institution across all account types. If you have a savings account with $100,000 and a CD with $150,000 at the same bank, your total coverage is $250,000, so you are fully protected. If you have $300,000 total at one bank, only $250,000 is covered.

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

Comparing CDs Across Banks and Online Institutions

Interest rates on CDs vary widely between banks. On the same day, one bank might offer 4.2 percent on a one-year CD while another offers 4.8 percent. Over one year, that difference adds up. On a $10,000 CD, the difference between 4.2 and 4.8 percent is about $60 in additional interest.

Online banks typically offer higher rates than brick-and-mortar banks because they have lower overhead costs. Credit unions sometimes offer competitive rates to their members. Before you open a CD, check rates at several institutions — your current bank, online banks, and any credit unions you belong to or are may be able to access to join.

When comparing, look at the APY (not just the stated rate), the term length, the early withdrawal penalty, and whether the bank requires a minimum deposit. Some banks require $500 or $1,000 minimum; others have no minimum. Some offer special promotional rates for new customers or for larger deposits.

Special CD Types and Variations

Most CDs are standard fixed-rate CDs, but some banks offer variations. A no-penalty CD lets you withdraw money early without a penalty, though the interest rate is usually lower than a standard CD. A bump-up CD lets you request a rate increase once during the term if rates rise. A step-up CD automatically increases your rate at set intervals.

Some banks offer callable CDs, which allow the bank to end the CD early if rates drop significantly. This protects the bank but can leave you without a place to put your money if rates have fallen. Callable CDs usually offer slightly higher rates to compensate for this risk.

Jumbo CDs require a larger minimum deposit — often $100,000 or more — and may offer higher rates. These are for people with substantial savings who want to lock in a may provide return.

Tax Implications of CD Interest

Interest earned on a CD is taxable income. The bank will send you a 1099-INT form at the end of the year showing how much interest you earned, and you must report this on your tax return. You pay taxes on the interest even if you do not withdraw it and let it stay in the CD.

If you are in a high tax bracket, the after-tax return on a CD may be lower than you expect. A CD earning 4.5 percent might net you only 3 percent after taxes if you are in the 33 percent tax bracket. Some people use CDs in tax-advantaged accounts like IRAs to avoid this, though CD options within IRAs may be more limited.

If you withdraw money early and pay a penalty, you can deduct the penalty from your taxable interest income. This does not eliminate the penalty's cost, but it reduces the tax impact slightly.

Frequently Asked Questions

Can I withdraw money from a CD before it matures?

Yes, but you will pay an early withdrawal penalty. The penalty amount varies by bank and CD term — it might be three to twelve months of interest. Some banks offer no-penalty CDs that let you withdraw without a fee, though the interest rate is usually lower. Check your CD agreement for the exact penalty before you open it.

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

A CD locks your money in for a fixed term and pays a higher, may provide interest rate. A savings account lets you withdraw money anytime without penalty but usually pays a lower rate that can change. Choose a CD if you have money you will not need for several months or years; choose a savings account if you need access to your money.

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

The FDIC (at banks) or NCUA (at credit unions) protects your CD up to $250,000. You will get your original deposit plus any interest earned up to the date of failure. The insurance is automatic — you do not need to do anything. If your CD is larger than $250,000, only that amount is covered.

Should I open a CD if interest rates might go up?

If you think rates will rise soon, a short-term CD (three to six months) locks in the current rate while keeping your money available sooner to reinvest at a higher rate. A longer-term CD locks in a rate for years, which protects you if rates fall but costs you if rates rise. Some banks offer bump-up CDs that let you request one rate increase if rates go higher.

Can I have multiple CDs at the same bank?

Yes. You can open as many CDs as you want at one bank, and each one is insured separately up to $250,000 total across all your accounts at that bank. Some people open CDs with different maturity dates so money becomes available at different times — this is called a CD ladder.