A CD locks your money for a set time in exchange for a may provide interest rate

A certificate of deposit (CD) is a savings account where you agree to leave money untouched for a specific period—anywhere from a few months to five years or longer—and the bank pays you a fixed interest rate in return. You deposit a lump sum, the bank holds it, and at the end of the term you get your original money back plus the interest earned. The rate is locked in from day one, so you know exactly how much you'll have when the CD matures.

The trade-off is simple: in exchange for that may provide rate, you can't withdraw the money early without paying a penalty. That penalty is usually a certain number of months' worth of interest—sometimes three months, sometimes six, depending on the CD and the bank. If you need the money before the term ends, you lose some of what you would have earned.

CDs are different from regular savings accounts because the bank knows your money will stay put. That certainty lets them offer you a higher interest rate than you'd get in a regular savings account at the same bank. The longer you're willing to lock up your money, the higher the rate typically is.

Key Takeaways

  • You deposit a fixed amount, choose a term length, and receive a may provide interest rate that does not change for the entire term.
  • Your money is insured by the FDIC up to $250,000 per depositor per bank, making CDs one of the safest places to keep savings.
  • Withdrawing money before the maturity date triggers an early withdrawal penalty, usually equal to a few months of interest.
  • When your CD matures, you can withdraw the money, open a new CD at the current rate, or let it roll over into a new CD at your bank's current rate.
  • CD rates vary by bank, term length, and deposit amount, so comparing offers across banks can mean hundreds of dollars in extra earnings.

How the interest rate and term length work together

When you open a CD, you choose two things: how much to deposit and how long to lock it up. The bank then quotes you an interest rate based on those choices. A three-month CD might pay 4.5%, while a two-year CD at the same bank might pay 5.2%. The longer the term, the higher the rate, because the bank gets to use your money for longer.

The interest rate is fixed, meaning it will not change no matter what happens to interest rates in the wider economy. If you lock in 5% for one year and rates drop to 3% six months later, you still earn 5%. If rates jump to 7%, you still earn 5%. That certainty is the whole point of a CD—you know your return before you hand over the money.

Interest compounds, usually daily or monthly depending on the bank. That means you earn interest on your interest. A $10,000 CD at 5% annual rate compounded daily will earn slightly more than one compounded monthly, though the difference is small. The bank's disclosure documents will tell you the compounding frequency and the annual percentage yield (APY), which is the actual return you'll receive after compounding is factored in.

What happens when your CD reaches maturity

On the maturity date, your CD term ends and you have choices. You can withdraw all the money—principal plus interest—with no penalty. You can open a new CD at whatever rate the bank is currently offering. Or you can do nothing and let the CD automatically roll over into a new CD at the bank's current rate, usually for the same term length as the original.

The rollover option is important to watch. If rates have dropped since you opened your first CD, rolling over automatically means you'll earn less on your next term. Many banks send a notice a few days before maturity giving you a window to withdraw or choose a different option. Read that notice carefully so you're not surprised by a lower rate.

Some banks offer bump-up or step-up CDs that let you increase your rate once during the term if rates rise. These are less common and usually come with a slightly lower starting rate, so they're worth comparing to a regular CD before you choose.

Early withdrawal penalties and when they apply

If you need your money before the maturity date, the bank will let you withdraw it, but you'll pay a penalty. The penalty is typically expressed as a number of months of interest. A CD with a three-month penalty means you lose three months' worth of the interest you would have earned. On a $10,000 CD earning 5% annually, that's roughly $125 in lost interest.

The penalty comes out of your interest, not your principal. You always get your original deposit back. But if you withdraw very early—say, after two weeks on a CD with a six-month penalty—you might owe more in penalties than you've earned in interest, so you'd actually get back slightly less than you deposited.

Some banks offer no-penalty CDs that let you withdraw early without losing interest, though these typically pay a lower rate than traditional CDs. If you think you might need the money, a no-penalty CD might be worth the lower rate, or you might be better off keeping the money in a high-yield savings account instead.

FDIC insurance and how much you can protect

CDs held at banks insured by the FDIC (Federal Deposit Insurance Corporation) are protected up to $250,000 per depositor per bank. That means if the bank fails, you get your money back up to that limit. This protection covers the principal and any interest earned up to the maturity date.

If you have more than $250,000 to invest, you can open CDs at different banks to protect the full amount. A $500,000 deposit split between two banks—$250,000 at each—is fully insured. You can also open multiple CDs at the same bank as long as they're in different ownership categories (for example, one in your name alone and one in a joint account), and each category gets its own $250,000 protection.

Credit unions offer similar insurance through the NCUA (National Credit Union Administration), also up to $250,000 per depositor per institution. Online banks are FDIC-insured just like brick-and-mortar banks, so the insurance applies regardless of where you open the CD.

Comparing CD rates across banks and terms

CD rates vary significantly by bank and by how long you're willing to lock up your money. A large national bank might offer 4.0% on a one-year CD, while an online bank might offer 5.1% for the same term. Over one year on a $10,000 deposit, that difference is about $110 in extra earnings. Over multiple years or larger deposits, the difference compounds.

The best rates are usually found at online banks and credit unions, which have lower overhead costs than traditional branches. However, some regional banks and credit unions occasionally offer promotional rates that beat the online leaders for specific term lengths. Checking multiple sources takes 15 minutes and can save you hundreds of dollars.

When comparing, look at the APY (annual percentage yield), not just the interest rate. The APY includes the effect of compounding and tells you the true return. Also check the early withdrawal penalty—a slightly higher rate is not worth it if the penalty is steep and you might need the money.

CD ladders and how to use them

A CD ladder is a strategy where you open multiple CDs with different maturity dates so that money becomes available at regular intervals. 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, reinvest it, or use it for expenses.

Laddering solves two problems at once. First, it lets you take advantage of higher rates on longer-term CDs without locking up all your money for years. Second, it gives you regular access to portions of your money without early withdrawal penalties. When the one-year CD matures, you can open a new five-year CD at whatever rate is current, and the ladder continues.

Laddering works best when you have a lump sum to invest and you want to balance safety with access. It requires a bit more planning than a single CD, but the payoff is flexibility without sacrificing the higher rates that longer terms offer.

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 set number of months of interest—check your CD agreement to see the exact amount. You always get your principal back; the penalty comes from the interest you've earned. Some banks offer no-penalty CDs that let you withdraw without losing interest, though they pay lower rates.

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

A savings account lets you withdraw money anytime with no penalty, but it pays a lower interest rate. A CD locks your money for a set term and pays a higher rate, but you lose interest if you withdraw early. Choose a CD if you won't need the money for several months or longer; choose a savings account if you want flexibility.

Do I have to pay taxes on CD interest?

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

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

The FDIC insures your CD up to $250,000, so you'll get your money back even if the bank goes under. The FDIC takes over and either transfers your CD to another bank or pays you directly. This protection is automatic—you don't have to do anything. Make sure your bank is FDIC-insured before you open a CD.

Should I open a CD now or wait for rates to go higher?

No one can predict where rates will go. If you have money you won't need for several months, locking in a rate removes the uncertainty. If you think rates might rise soon, you could keep money in a high-yield savings account temporarily and open a CD later. But trying to time the market often backfires—a may provide rate is usually better than hoping for a higher one tomorrow.