A CD is a savings account where you agree to leave your money untouched for a set time in exchange for a higher interest rate

CD stands for certificate of deposit. You give a bank or credit union a lump sum of money, they hold it for a fixed period (called the term), and in return they pay you a set interest rate — almost always higher than a regular savings account offers. When the term ends, you get your original money back plus the interest earned.

The trade-off is simple: you cannot touch the money during the term without paying a penalty. That penalty is usually a loss of some or all of the interest you would have earned. Because you are locking your money away, the bank can lend it out with confidence, so they reward you with better rates.

CDs come in different term lengths — typically three months, six months, one year, two years, five years, or longer. The longer the term, the higher the rate usually is, though this is not may provide and rates change based on what the Federal Reserve does with interest rates.

Key Takeaways

  • A CD pays a fixed interest rate for a fixed period; you cannot withdraw the money early without losing interest.
  • CD rates are almost always higher than savings account rates because your money is locked in.
  • The term length you choose affects the rate you receive — longer terms typically pay more, but rates vary by bank and economic conditions.
  • When your CD matures, you can withdraw the money, open a new CD, or let it roll over into another CD at the bank's current rate.
  • CDs are insured by the FDIC (at banks) or NCUA (at credit unions) up to $250,000 per depositor per institution.

How the interest rate and term length work together

The interest rate on a CD is set when you open it and does not change for the entire term. If you open a one-year CD at 4.5%, you will earn 4.5% on your money for the full year, even if rates drop to 2% the next month. That locked-in rate is both a protection and a limitation — you benefit if rates fall, but you miss out if rates rise.

Term length is the other half of the equation. A three-month CD might pay 4.0%, while a five-year CD from the same bank might pay 5.2%. Banks offer higher rates for longer terms because they want to keep your money longer. However, the relationship between term and rate is not automatic — it depends on what is happening in the broader economy and what the Federal Reserve is doing.

You choose the term based on when you will need the money. If you know you will not touch the funds for five years, a five-year CD locks in a higher rate. If you might need the money in two years, a two-year CD is the better fit, even if the rate is lower.

What happens when your CD reaches maturity

When your term ends, your CD matures. At that point, the bank will notify you (usually by mail or email) and give you a window — often 7 to 10 days — to decide what to do with the money. You have three main options.

First, you can withdraw the money in full. The bank will send you a check or transfer the funds to a linked account. Second, you can open a new CD with the same bank, choosing a new term and locking in whatever rate they are offering at that time. Third, you can do nothing, and many banks will automatically roll over your CD into a new one at the current rate — but you should check your bank's policy, because some will move the money to a regular savings account instead.

The rollover option is convenient but risky if rates have dropped significantly. If your old CD paid 5% and rates have fallen to 2%, you do not want to roll over without noticing. Set a calendar reminder a few weeks before maturity so you can review your options and shop around if you want a better rate elsewhere.

Early withdrawal penalties and when they apply

If you need your money before the term ends, you can withdraw it — but the bank will charge an early withdrawal penalty. The penalty is usually expressed as a number of months of interest. For example, a penalty of three months of interest means you lose three months' worth of the earnings you would have made.

The exact penalty varies by bank and by term length. A short-term CD (three or six months) might have a penalty of 10 to 30 days of interest. A longer-term CD (five years) might have a penalty of 150 to 180 days of interest. Some banks publish the penalty upfront; others do not, so you should ask before you open the CD.

The penalty is deducted from your interest, not from your principal. If you opened a $10,000 CD and earned $500 in interest but withdrew early with a $300 penalty, you would get back $10,200 — your full $10,000 plus $200 in interest. However, if the penalty is larger than the interest you have earned so far, you lose money from your original deposit.

CDs versus savings accounts: the main differences

Both CDs and savings accounts are safe, FDIC-insured ways to store money, but they serve different purposes. A savings account has no term — you can deposit and withdraw whenever you want. In exchange for that flexibility, the interest rate is lower, often less than 1% depending on the bank. A CD locks your money for a set period but pays significantly more interest.

Choose a savings account if you need quick access to your money or if you are building an emergency fund. Choose a CD if you have money you will not need for a specific period and want to earn more on it. Some people use both: they keep three to six months of expenses in a savings account for emergencies and put longer-term savings into CDs.

Another difference is that savings accounts are meant for regular use — you can make multiple deposits and withdrawals. CDs are typically opened once with a lump sum and left alone. Some banks offer add-on CDs that let you deposit more money during the term, but this is less common.

FDIC and NCUA insurance protection for CDs

CDs held at banks are insured by the FDIC (Federal Deposit Insurance Corporation) up to $250,000 per depositor per bank. CDs held at credit unions are insured by the NCUA (National Credit Union Administration) up to the same amount. This means if the bank or credit union fails, you will get your money back, up to the limit.

The $250,000 limit applies per person per institution. If you have $250,000 in a CD at Bank A and $250,000 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. If you have a joint CD with a spouse, the limit is $250,000 per person, so you could have $500,000 total and both be insured.

This insurance is automatic — you do not need to do anything to activate it. As long as the bank or credit union is FDIC- or NCUA-insured, your CD is protected. You can verify this on the FDIC or NCUA website by searching for the institution's name.

How to compare CDs from different banks

CD rates vary widely between banks and change frequently. A bank offering 4.5% on a one-year CD today might offer 4.2% next week. To find the best rate, you need to compare across multiple institutions.

Start by checking your current bank, but do not stop there. 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. Websites like Bankrate, DepositAccounts, and the FDIC's own rate search tool let you see current rates across many banks for the same term length.

When comparing, look at the APY (annual percentage yield), not just the interest rate. APY accounts for how often interest is compounded and gives you the true annual return. A CD with an APY of 4.75% will earn more than one with an APY of 4.50%, all else equal. Also check the minimum deposit required — some banks require $500, others $25,000 or more.

Frequently Asked Questions

Can I withdraw money from a CD before it matures?

Yes, but you will pay an early withdrawal penalty. The penalty is usually a loss of interest — typically 10 to 180 days' worth, depending on the bank and the CD's term. In some cases, if you have not earned enough interest yet, the penalty will come out of your principal, meaning you get back less than you deposited.

What is the difference between APY and interest rate on a CD?

The interest rate is the percentage the bank pays on your money. APY (annual percentage yield) is the true annual return after accounting for how often interest is compounded. APY is always equal to or higher than the stated rate. When comparing CDs, use APY to see which one actually earns you more money.

What happens if the bank fails while my money is in a CD?

If the bank is FDIC-insured, you are protected up to $250,000. The FDIC will return your full CD balance plus any accrued interest, up to that limit. You do not need to do anything — the insurance is automatic. You can verify a bank's FDIC status on the FDIC website.

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

If you think rates will rise significantly, a shorter-term CD (three or six months) lets you reinvest at a higher rate sooner. A longer-term CD locks in today's rate, which protects you if rates fall but costs you if rates rise. Consider how long you can afford to lock your money away and how much rate risk you are comfortable with.

Can I have multiple CDs at the same bank?

Yes. You can open several CDs with different term lengths at the same bank. Each CD is insured separately up to $250,000, so if you have $100,000 in a one-year CD and $100,000 in a five-year CD at the same bank, both are fully covered. This strategy, called a CD ladder, lets you spread your money across different maturity dates.