A CD is a savings account where you lock money away for a set time to earn a higher interest rate

A certificate of deposit (CD) is a bank account that holds your money for a fixed period — typically three months to five years — in exchange for a may provide interest rate. You deposit a lump sum, agree not to touch it until the term ends, and the bank pays you interest on top of what you put in. The longer you lock your money away, the higher the interest rate usually is.

The trade-off is simple: you give up access to your cash for a defined time, and the bank gives you a rate that beats what you'd earn in a regular savings account. If you withdraw the money before the term ends, you pay a early withdrawal penalty — usually a few months' worth of interest, though the exact amount depends on the bank and the CD term.

CDs are insured by the Federal Deposit Insurance Corporation (FDIC) up to $250,000 per depositor per bank, so your principal is protected even if the bank fails. The interest rate and term are locked in when you open the account, which means you know exactly how much you'll have when the CD matures.

Key Takeaways

  • A CD requires you to deposit money for a fixed term (three months to five years) and pay a penalty if you withdraw early.
  • Interest rates on CDs are higher than regular savings accounts because you're agreeing to leave the money untouched.
  • When your CD matures, you can withdraw the money, open a new CD, or let it roll over into another term at the bank's current rate.
  • FDIC insurance protects your deposit up to $250,000, so your principal is safe regardless of what happens to the bank.
  • The early withdrawal penalty typically costs you a few months of interest, but the exact amount varies by bank and term length.

How interest rates and terms work together

Banks set CD rates based on how long you agree to lock your money away. A three-month CD pays less than a one-year CD, which pays less than a five-year CD. The bank uses your money during that time, so they reward you for committing to a longer period.

Interest rates change over time and vary between banks. When the Federal Reserve raises its benchmark rate, banks typically raise CD rates within weeks. When rates fall, CD rates fall too. If you open a CD at 4.5% for one year, that rate stays 4.5% for the full year even if rates drop to 3% the next month — that's the may provide.

Interest compounds either monthly, quarterly, or annually depending on the bank's terms. Compounding means the bank pays interest on your interest, so your balance grows faster than simple interest would. A $10,000 CD earning 4% annually with monthly compounding will grow to $10,408.08 after one year, not $10,400.

What happens when your CD matures

When the term ends, your CD reaches maturity. At that point, you have options: withdraw the full amount (principal plus interest), open a new CD at the bank's current rates, or let the money sit in a regular savings account while you decide.

Many banks have a grace period — usually seven to ten days after maturity — during which you can withdraw without penalty or move the money to a different product. If you do nothing during that window, some banks automatically roll the CD into a new term at their current rate. Read your CD agreement to know your bank's rollover policy, because you might end up locked in again at a lower rate if rates have dropped.

If you need the money before maturity, you can withdraw it early, but you'll pay the penalty. The penalty amount is stated in your CD agreement and is usually calculated as a certain number of months of interest. On a $10,000 CD earning 4% annually, a three-month early withdrawal penalty might cost you $100.

CD laddering: spreading your money across multiple terms

Some people open several CDs with different maturity dates instead of putting all their money in one long-term CD. This strategy, called CD laddering, gives you access to portions of your money at regular intervals while still earning higher rates than a savings account.

For example, you might open five $2,000 CDs with one-year, two-year, three-year, four-year, and five-year terms. Each year, one CD matures and you can withdraw the money or reinvest it. This approach lets you take advantage of higher long-term rates while keeping some liquidity — money you can access without penalty.

Laddering also protects you if rates rise. When a CD matures, you can open a new one at the current (possibly higher) rate instead of being locked into an old rate for years. If rates fall, you still have money earning the higher rates you locked in earlier.

CDs versus savings accounts and money market accounts

A regular savings account has no term and no penalty for withdrawal, but it pays much less interest — often 0.01% to 0.5% depending on the bank. You can access your money anytime, which is convenient but costs you in earnings.

A money market account sits between a savings account and a CD. It typically pays more than a savings account (sometimes close to CD rates) but less than a CD, and you can withdraw money without penalty. However, money market accounts often have monthly withdrawal limits and require a higher minimum balance.

A CD pays the most because you're giving up access. If you know you won't need the money for a specific period and want the highest may provide rate, a CD makes sense. If you might need the cash sooner or want flexibility, a savings account or money market account is safer.

Early withdrawal penalties and how to avoid them

The early withdrawal penalty is the price of breaking your agreement with the bank. It's calculated as a set number of months of interest and is deducted from your balance when you withdraw. A $5,000 CD earning 3% annually with a six-month penalty costs you $75 if you withdraw early.

The penalty is always stated in your CD agreement before you open the account. Some banks charge more for longer-term CDs (a five-year CD might have a twelve-month penalty) and less for shorter terms (a three-month CD might have a one-month penalty). Compare the penalty terms across banks before you commit.

To avoid the penalty, wait until maturity or use a CD ladder so you have access to some money at regular intervals without touching the locked funds. Some banks also offer no-penalty CDs that let you withdraw your principal without a fee, though the interest rate is lower than a traditional CD to compensate.

Where to open a CD and what to compare

You can open a CD at any bank or credit union that offers them. Online banks often pay higher rates than brick-and-mortar banks because they have lower overhead costs. Credit unions sometimes offer competitive rates to members. Compare rates across multiple institutions before deciding.

When comparing CDs, look at the interest rate, the term length, the early withdrawal penalty, the compounding frequency, and the minimum deposit required. A CD with a 0.25% higher rate might not be worth it if the early withdrawal penalty is much steeper. A CD with monthly compounding earns slightly more than one with annual compounding, but the difference is small on most deposits.

Make sure the bank is FDIC-insured (or the credit union is NCUA-insured) so your deposit is protected. If you're opening a CD with more than $250,000, spread it across multiple banks or use different ownership categories (individual, joint, retirement accounts) to stay within the insurance limit at each institution.

Frequently Asked Questions

Can I withdraw money from a CD before it matures?

Yes, but you'll pay an early withdrawal penalty. The penalty is usually a few months of interest and is deducted from your balance. The exact amount depends on your bank and the CD term. Some banks offer no-penalty CDs that let you withdraw without a fee, though the rate is lower.

What happens if I don't withdraw my money when the CD matures?

Most banks have a grace period (usually seven to ten days) after maturity during which you can withdraw without penalty. If you do nothing, the bank automatically rolls the CD into a new term at the current rate. Check your agreement to know your bank's rollover policy so you're not locked in at a lower rate.

Is a CD safe if the bank fails?

Yes. CDs are insured by the FDIC up to $250,000 per depositor per bank. Your principal and accrued interest are protected even if the bank fails. If you have more than $250,000, open CDs at different banks or use different account categories to stay within the insurance limit.

How much interest will I earn on a CD?

Interest depends on the rate, the term, and how often it compounds. A $10,000 CD at 4% for one year with monthly compounding earns about $408. Rates vary by bank and change over time, so compare current rates before opening an account. Longer terms usually pay higher rates.

Should I open a CD or keep money in a savings account?

Open a CD if you won't need the money for several months or longer and want the highest may provide rate. Use a savings account if you might need the cash sooner or want flexibility without penalties. A money market account is a middle ground if you want higher rates than savings but more access than a CD.