A CD is a savings account where you lock up your money for a set time in exchange for a higher interest rate

A Certificate of Deposit (CD) is an account at a bank or credit union where you deposit money and agree not to touch it until a specific date. In return, the bank pays you a fixed interest rate—usually higher than a regular savings account. You choose the term length when you open it: common options are 3 months, 6 months, 1 year, 2 years, or 5 years. The longer you lock your money away, the higher the interest rate typically is.

When your CD reaches its maturity date, the bank returns your original deposit plus all the interest you earned. At that point you can withdraw the money, move it to another CD, or let it roll over into a new CD at whatever rate the bank is offering at that time. If you need the money before the maturity date, you can withdraw it early—but the bank will charge you a penalty, usually a few months' worth of interest.

CDs are insured by the FDIC (Federal Deposit Insurance Corporation) up to $250,000 per account holder, per bank. That means if the bank fails, your money is protected. This makes CDs one of the safest places to put money that you know you won't need for a while.

Key Takeaways

  • You deposit a lump sum, agree to leave it untouched for a set period (3 months to 5 years), and receive a fixed interest rate in return.
  • Interest rates on CDs are usually higher than savings accounts because you're giving the bank the use of your money for a may provide time.
  • Withdrawing money before the maturity date triggers an early withdrawal penalty, typically equal to several months of interest.
  • FDIC insurance protects your deposit and interest up to $250,000 if the bank fails, making CDs a low-risk savings tool.
  • When a CD matures, you can withdraw the money, open a new CD, or let it automatically roll over into another term at the current rate.

How interest rates and terms work together

The interest rate you receive depends on two things: what the bank is offering at the time you open the CD, and how long you commit to locking your money away. Banks typically offer higher rates for longer terms because they want to keep your money on deposit for as long as possible. A 6-month CD might pay 4.5%, while a 2-year CD at the same bank might pay 5.2%. The exact rates change constantly based on what the Federal Reserve is doing and what other banks are offering.

The interest compounds—meaning you earn interest on your interest—but the frequency varies by bank. Some CDs compound daily, others monthly or quarterly. Daily compounding means your money grows slightly faster, but the difference is usually small unless you have a large deposit or a long term. The bank will tell you the Annual Percentage Yield (APY) when you open the account, which already factors in how often the interest compounds, so you can compare CDs fairly.

Once you lock in a rate, it does not change for the life of that CD. If interest rates rise after you open your CD, you're stuck with your original rate. If rates fall, you're protected—you keep earning the higher rate you locked in. This is why timing matters: opening a CD when rates are high protects you if they drop later.

Early withdrawal penalties and what they cost

If you need your money before the maturity date, you can get it—but the bank charges a penalty. The penalty is usually expressed as a number of months of interest. A CD with a 6-month penalty means you lose 6 months' worth of the interest you would have earned. On a $10,000 CD earning 5% APY, that's roughly $250 in lost interest. Some banks charge smaller penalties for shorter-term CDs and larger penalties for longer ones.

The penalty comes out of your interest earnings first. If you've earned enough interest to cover the penalty, you simply get less back. If you haven't earned enough interest yet—because you're withdrawing very early—the bank takes the penalty from your original deposit. This means you could get back less money than you put in. Always ask the bank what the early withdrawal penalty is before you open a CD, and do the math to see if it's worth paying if you think you might need the money.

Some banks offer "no-penalty CDs" that let you withdraw your money early without a penalty, but they pay lower interest rates to compensate. These make sense if you're not certain you can leave the money alone for the full term.

When maturity arrives: what happens next

On your CD's maturity date, the bank automatically deposits your principal plus all earned interest into your account. You then have a window—usually 7 to 10 days—to decide what to do with the money. Most banks send you a notice before maturity so you're not caught off guard.

You have three options. First, you can withdraw the money and use it however you want. Second, you can open a new CD at the same bank or move your money to a different bank and open a CD there. Third, you can do nothing and let the bank automatically roll your money into a new CD at the current rate and term. The rollover option is convenient but risky: if rates have dropped, you'll be locked into a lower rate. If rates have risen, you're missing out on the higher rate. Most people prefer to actively choose their next move rather than let it happen automatically.

CD ladders: spreading your money across multiple terms

A CD ladder is a strategy where you open several CDs with different maturity dates instead of putting all your money into one CD. For example, you might open five 1-year CDs, each with $2,000. One matures every few months. When each one matures, you can either withdraw that portion or roll it into a new longer-term CD at whatever rate is available at that time.

The advantage is flexibility: you're not locking all your money away for years, and you get regular chances to move money to higher-rate CDs if rates rise. The disadvantage is that you earn slightly lower rates on the shorter-term CDs in your ladder, so your overall return is lower than if you'd put everything into one long-term CD. Laddering works best when you're not sure whether rates will rise or fall, or when you know you'll need some of the money at different times.

CDs versus savings accounts and money market accounts

A regular savings account lets you deposit and withdraw money whenever you want, with no penalty. The tradeoff is that savings accounts pay much lower interest rates—often 0.01% to 0.5% APY. A CD locks your money away but pays significantly more: 4% to 5.5% depending on the term and current rates. Over a year, that difference adds up. On $10,000, a savings account at 0.1% earns $10, while a 1-year CD at 5% earns $500.

A money market account sits in the middle. It typically pays higher interest than a savings account but lower than a CD, and it gives you limited access to your money—you can usually make a few withdrawals per month without penalty. Money market accounts are useful if you want better returns than savings but need more flexibility than a CD offers.

Choose a CD if you have money you won't need for several months or longer and want the highest may provide return. Choose a savings account if you need quick access or might need the money unexpectedly. Choose a money market account if you want something in between.

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 several months of interest. Some banks offer no-penalty CDs that let you withdraw early without a fee, though they pay lower rates. Check the penalty amount before opening any CD.

What happens if the bank fails?

Your CD is insured by the FDIC up to $250,000. If the bank fails, the FDIC pays you your full deposit plus all interest earned, even if the bank no longer exists. This protection applies to each bank separately, so you could have $250,000 in CDs at multiple banks and be fully covered at each one.

Can I move my CD to a different bank?

When your CD matures, you can withdraw the money and open a CD at any other bank. You cannot move an active CD to another bank without withdrawing it first and paying the early withdrawal penalty. Some banks offer CD transfers, but this is rare and usually only available for large amounts.

Do I have to pay taxes on CD interest?

Yes. CD interest is taxable income in the year you earn it. The bank will send you a 1099-INT form showing how much interest you earned, and you report that on your tax return. Some people open CDs in retirement accounts (like IRAs) to defer taxes, but that's a separate decision.

What if I need the money right after I open the CD?

You can withdraw it, but you'll lose money to the early withdrawal penalty. If you're not sure you can leave money alone for the full term, open a shorter-term CD (3 or 6 months) or choose a no-penalty CD instead. The lower rate on a no-penalty CD might be worth it for the peace of mind.