A certificate of deposit is a savings account where you lock your money away for a set time in exchange for a higher interest rate

When you open a CD, you agree to leave a lump sum of money untouched until a specific date — called the maturity date. In return, the bank pays you a fixed interest rate, usually higher than what a regular savings account offers. At maturity, you get your original money back plus the interest earned. If you need the money before that date, you pay an early withdrawal penalty, which is a fee that reduces what you take out.

Banks use your CD money to make loans and investments during the time you've locked it in. That's why they pay you more interest than a savings account — they know exactly how long they can use your money. The tradeoff is simple: higher interest in exchange for giving up access to your cash.

Key Takeaways

  • You deposit a fixed amount of money for a fixed period (typically three months to five years), and the bank pays you a set interest rate that doesn't change.
  • Early withdrawal penalties can be substantial — often three to twelve months of interest — so only lock away money you won't need before maturity.
  • CD rates vary by bank and by term length; longer terms usually pay more, but rates also depend on what the Federal Reserve has set as its benchmark rate.
  • When your CD matures, you can withdraw the money, open a new CD, or let it automatically renew at whatever rate the bank is offering that day.
  • CDs are FDIC-insured up to $250,000 per depositor per bank, so your principal is protected even if the bank fails.

How the interest rate and term length work together

The term is how long you commit to leaving your money in the CD — common terms are three months, six months, one year, two years, three years, and five years. Generally, the longer the term, the higher the interest rate the bank will offer. A five-year CD might pay 4.5%, while a three-month CD at the same bank might pay 3.8%. Banks do this because they want to lock in your money for as long as possible.

However, the actual rates available depend on what the Federal Reserve has set as its benchmark interest rate. When the Fed raises rates, new CDs pay more. When the Fed cuts rates, new CDs pay less. If you lock in a rate today and rates fall tomorrow, you've made a good choice. If rates rise after you've locked in, you'll wish you'd waited — but you can't change the rate without paying the early withdrawal penalty.

The interest compounds according to the bank's terms, usually daily or monthly. That means you earn interest on your interest. A $10,000 CD at 4% for one year will earn roughly $400 in interest, but the exact amount depends on how often the bank compounds.

Early withdrawal penalties and when they apply

If you need your money before the maturity date, the bank will charge you an early withdrawal penalty. The size of the penalty varies by bank and by term length. A typical penalty might be three months of interest, six months of interest, or sometimes a flat fee. On a large CD or a long-term CD, this penalty can be hundreds of dollars.

The penalty is deducted from your total payout. If you have a $10,000 CD earning 4% annually and you withdraw after six months, you'd have roughly $200 in interest earned. If the penalty is six months of interest ($200), you'd walk away with your $10,000 and nothing extra — the interest covers the fee. If the penalty is larger than your interest, you'd actually lose money compared to what you deposited.

Some banks offer no-penalty CDs that let you withdraw early without a fee, but they pay lower interest rates to compensate. These are worth considering if you're not certain you can leave the money untouched.

What happens when your CD matures

On the maturity date, your CD stops earning interest. At that point, you have three main choices: withdraw the money, open a new CD, or do nothing and let it automatically renew.

If you do nothing, most banks will automatically roll your CD into a new one at the same term length, using whatever interest rate they're offering that day. This happens without your permission, which is why it's important to mark your maturity date on your calendar. If rates have fallen, you might not want to renew at the new rate. If rates have risen, you might want to shop around at other banks instead of accepting your current bank's offer.

You typically have a grace period — often seven to ten days — to withdraw your money or make a different choice before the automatic renewal locks in. Check your CD agreement for your bank's specific window.

CD laddering and how it can help you

One strategy savers use is called CD laddering. Instead of putting all your money into one CD with a five-year term, you split it into multiple CDs with different maturity dates — for example, one CD maturing in one year, one in two years, one in three years, and one in four years.

The advantage is that you get some of your money back each year, so you're not completely locked in. If you need cash, you can wait a few months for the next CD to mature instead of paying an early withdrawal penalty. If interest rates rise, you can reinvest the maturing CD at the higher rate. If rates fall, you still have other CDs earning the higher rate you locked in earlier.

Laddering requires more attention and more initial money to set up, but it balances the higher interest of longer-term CDs with the flexibility of shorter-term ones.

FDIC insurance and what it protects

CDs held at banks are protected by FDIC insurance up to $250,000 per depositor per bank. This means if the bank fails, the government will return your money up to that limit. Your principal is safe, though the interest you've earned is also covered within that $250,000 total.

If you have more than $250,000 to invest in CDs, you can spread it across multiple banks to stay within the insurance limit at each one. For example, $250,000 at Bank A and $250,000 at Bank B would both be fully insured. CDs at credit unions are similarly protected by the NCUA up to $250,000 per member per institution.

This insurance does not protect you from early withdrawal penalties or from interest rate risk — it only protects your money if the institution itself fails.

How CDs compare to savings accounts and money market accounts

A regular savings account has no maturity date and no penalty for withdrawals, but it pays much lower interest — often less than 0.5% annually. You can access your money anytime, which is the trade-off for earning almost nothing.

A money market account sits between a savings account and a CD. It typically pays more interest than savings but less than a CD, and it usually allows a few withdrawals per month without penalty. However, money market accounts often require a higher minimum deposit and may have variable interest rates that change with market conditions.

A CD locks in a fixed rate for a fixed time, so you know exactly what you'll earn. This certainty is valuable when rates are high and you want to protect that rate from future cuts. It's less attractive when rates are falling and you'd rather keep your options open.

Frequently Asked Questions

Can I withdraw money from a CD before it matures?

Yes, but you'll pay an early withdrawal penalty that reduces your total payout. The penalty amount depends on your bank and the CD's term. Some banks offer no-penalty CDs that let you withdraw without a fee, though they pay lower interest rates. Check your CD agreement to see the exact penalty before you open the account.

What's the difference between a CD and a savings account?

A savings account has no maturity date and no penalty for withdrawals, but it pays very low interest. A CD locks your money for a set time and pays higher interest, but you lose money if you withdraw early. Choose a savings account if you need access to your cash; choose a CD if you can leave the money untouched and want better returns.

Do I have to renew my CD when it matures?

No. When your CD matures, you can withdraw the money, open a new CD at a different bank or term, or do nothing and let it automatically renew. Most banks renew automatically if you don't act, usually within a grace period of seven to ten days. Mark your maturity date to avoid an unwanted renewal at a lower rate.

Are CDs safe if the bank fails?

Yes. CDs at banks are insured by the FDIC up to $250,000 per depositor per bank. If the bank fails, the government returns your money. If you have more than $250,000, spread it across multiple banks to stay within the insurance limit at each one.

Should I buy a CD if interest rates are falling?

It depends on how confident you are that rates will continue to fall. If you think rates will drop, locking in a rate protects you. If you think rates might rise, a shorter-term CD or a no-penalty CD gives you more flexibility to reinvest at higher rates when your CD matures. Consider your own situation and how long you can afford to have the money locked away.