A certificate of deposit locks your money away for a set time in exchange for a higher interest rate

A certificate of deposit (CD) is an account where you deposit a lump sum of money and agree not to touch it for a fixed period — typically three months to five years. In return, the bank pays you a higher interest rate than a regular savings account. When the term ends, you get your original deposit back plus the interest you earned.

The trade-off is simple: you give up access to your money for a defined stretch of time, and the bank rewards you with better returns. If you withdraw the money before the term is up, you pay an early withdrawal penalty — usually a few months' worth of interest, though the exact amount depends on the bank and the CD's term length.

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. This makes them one of the safest places to park money you know you won't need for a while.

Key Takeaways

  • You deposit a fixed amount, agree not to withdraw it for a set term (three months to five years), and receive a higher interest rate than a savings account.
  • Early withdrawal before the term ends triggers a penalty, usually several months of interest, so only put money in a CD if you can leave it untouched.
  • CD interest rates vary by bank, term length, and current market conditions — shopping around can mean hundreds of dollars in difference on a large deposit.
  • FDIC insurance protects your deposit up to $250,000, making CDs safer than stocks or bonds if your only concern is getting your money back.
  • 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.

How interest rates and term length affect your earnings

The longer you lock your money away, the higher the interest rate the bank typically offers. A three-month CD might pay 4.5 percent annually, while a five-year CD from the same bank might pay 4.8 percent. The difference sounds small, but on a $10,000 deposit over five years, it adds up to real money.

Interest rates also shift with the broader economy. When the Federal Reserve raises its benchmark rate, banks raise CD rates to attract deposits. When rates fall, CD rates fall with them. If you lock in a rate today and rates drop next month, you benefit. If rates rise, you're stuck with the lower rate you agreed to — which is why timing matters if you're watching the economic news.

Banks also compete for deposits, so rates vary significantly between institutions. An online bank might offer 4.9 percent on a one-year CD while a brick-and-mortar bank down the street offers 3.8 percent on the same term. Checking rates across five or ten banks before you deposit can mean hundreds of dollars in extra interest over the CD's life.

What happens when your CD reaches maturity

When your term ends, the bank sends you a notice — usually 10 to 30 days before maturity — telling you what happens next. You have three main choices: withdraw the money, open a new CD, or let the bank automatically roll your balance into a new CD at the current rate.

If you do nothing, most banks automatically roll the CD into a new term at whatever rate they're offering at that moment. This is convenient if rates haven't changed much, but it can work against you if rates have dropped significantly. Read the maturity notice carefully and act before the deadline if you want to move your money elsewhere or shop for a better rate.

The interest you earned is yours to keep — the bank doesn't take it back. You can withdraw just the interest and leave the principal in a new CD, or withdraw everything. Some people use maturing CDs as a savings ladder, opening multiple CDs with staggered maturity dates so money becomes available at regular intervals without penalty.

Early withdrawal penalties and when they apply

If you need your money before the CD matures, you can withdraw it, but you'll pay a penalty. The penalty is almost always calculated as a number of months of interest — commonly three to six months' worth, depending on the CD's term. On a $10,000 CD earning 4.5 percent annually, a six-month penalty would cost you roughly $225.

Some banks charge a flat dollar amount instead of forfeited interest, and a few charge a percentage of the principal. Always ask the bank what the specific penalty is before you open the CD — it's usually in the disclosure document, but it's worth confirming by phone if the terms aren't clear.

The penalty applies only to early withdrawals. If you wait until maturity, you owe nothing extra. This is why CDs work best for money you genuinely won't need — an emergency fund, a down payment you're saving for a specific date, or a chunk of money you're setting aside for a known expense a year or two away.

CDs versus savings accounts and money market accounts

A regular savings account gives you full access to your money anytime, but the interest rate is usually much lower — often under 1 percent annually at traditional banks. A CD locks your money away but pays two to four times as much interest. The choice depends on whether you need the money soon.

A money market account sits in the middle: it pays more interest than a savings account (though usually less than a CD), and it gives you limited access to your money through checks or debit cards. If you think you might need to tap the account occasionally, a money market account is more flexible than a CD but less flexible than a savings account.

If you have money you won't touch for at least a year, a CD almost always beats a savings account on interest earned. If you might need the money within months, the early withdrawal penalty makes a CD a bad choice — stick with a savings account and accept the lower rate as the cost of flexibility.

How to compare CDs across banks

Start by deciding how long you can lock the money away and how much you want to deposit. Then visit the websites of five to ten banks — both online banks and traditional banks in your area — and note the rate each one offers for your chosen term. Don't stop at the first bank; the difference between the highest and lowest rates can be substantial.

Check whether the bank is FDIC-insured. All legitimate banks are, but it's worth confirming on the FDIC's website if you're using a smaller or less familiar institution. If you're depositing more than $250,000, you'll need to split it across multiple banks or multiple account types to stay within FDIC coverage limits.

Read the fine print about the early withdrawal penalty, the maturity notice period, and whether the CD automatically rolls over. Some banks offer "no-penalty CDs" that let you withdraw without penalty after a short waiting period — these pay slightly less interest than traditional CDs but give you an escape hatch if your circumstances change.

Special CD types: bump-up, step-up, and no-penalty options

Most banks offer standard CDs, but some offer variations designed for different situations. A bump-up CD lets you request a rate increase once during the term if rates rise — useful if you think rates might go up and you want to lock in gains without opening a new CD. A step-up CD automatically increases your rate at set intervals, usually annually, so you benefit from rising rates without asking.

A no-penalty CD lets you withdraw your money after a short waiting period (often 7 to 10 days) without paying a penalty. The trade-off is a lower interest rate than a traditional CD. These work well if you want CD-like returns but aren't confident you can leave the money untouched for the full term.

Some banks also offer jumbo CDs for large deposits (usually $100,000 or more), which sometimes pay slightly higher rates. If you're depositing a significant sum, ask whether the bank offers a jumbo rate — it might be worth the conversation.

Frequently Asked Questions

Can I withdraw money from a CD before it matures?

Yes, but you'll pay an early withdrawal penalty, usually equal to several months of interest. The exact penalty depends on the bank and the CD's term. If you think you might need the money, a no-penalty CD or a savings account is a better choice than a traditional CD.

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

A savings account lets you withdraw anytime but pays low interest (often under 1 percent). A CD locks your money for a set term and pays much higher interest (currently 4 to 5 percent at many banks). Choose a CD if you won't need the money; choose a savings account if you might.

Is my money safe in a CD if the bank fails?

Yes. The FDIC insures CDs up to $250,000 per depositor per bank, so your principal and earned interest are protected. If you're depositing more than $250,000, split it across multiple banks to stay within coverage limits.

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

Most banks automatically roll your CD into a new term at the current rate. You'll receive a notice before maturity telling you this will happen. If you want to withdraw, move the money, or shop for a better rate, act before the deadline listed in the notice.

Do I pay taxes on CD interest?

Yes. CD interest is taxable income in the year you earn it, even if you don't withdraw the money. The bank will send you a 1099-INT form at tax time showing how much interest you earned. This is one reason CDs in retirement accounts (like IRAs) can be more tax-efficient than CDs in regular accounts.