A Certificate of Deposit Is a Savings Account That Locks Your Money Away for a Set Time
A certificate of deposit, or CD, is an account at a bank where you deposit money and agree not to touch it for a specific period—usually anywhere from three months to five years. In exchange, the bank pays you a higher interest rate than it would on a regular savings account. When your time period ends, you get your original deposit back plus the interest earned.
The trade-off is straightforward: the bank wants to know your money will stay put, so it rewards you for that certainty. If you withdraw the money before the agreed date, you pay a penalty—usually a few months' worth of interest. This makes CDs different from savings accounts, where you can pull money out whenever you want.
Key Takeaways
- You deposit a lump sum and leave it untouched for a fixed period, typically three months to five years, in exchange for a may provide interest rate.
- CD interest rates are higher than regular savings accounts because the bank knows exactly how long it can use your money.
- Withdrawing money early triggers a penalty, usually several months of lost interest, so only deposit what you won't need during the CD term.
- When your CD matures, you can withdraw the money, move it to a new CD, or let it automatically renew at the bank's current rate.
- CDs are insured by the FDIC up to $250,000 per account, so your principal is protected even if the bank fails.
How Interest Rates and Terms Work on a CD
When you open a CD, the bank tells you the exact interest rate you'll earn and how long the money will stay locked. That rate doesn't change—if you open a one-year CD at 4.5 percent, you'll earn 4.5 percent for the full year, even if rates drop to 2 percent next month. This predictability is one reason people use CDs: you know exactly what you'll have at the end.
Shorter CDs (three to six months) usually offer lower rates because the bank has less time to use your money. Longer CDs (three to five years) offer higher rates because the bank can count on keeping your deposit longer. Some banks also offer special CDs called "bump-up" or "step-up" CDs that let you increase your rate once if market rates rise, though these typically start at a slightly lower rate.
The interest compounds—meaning you earn interest on your interest—but how often depends on the bank. Some compound daily, others monthly or quarterly. Daily compounding means slightly more money at the end, though the difference is usually small.
What Happens When Your CD Matures
When your CD term ends, you enter a grace period, usually five to ten days, where you can decide what to do with the money. Most banks automatically renew your CD at their current rate if you don't act during this window. That new rate might be higher or lower than what you just earned.
You have three real choices: withdraw the money and close the account, move it to a new CD with a different term, or let it roll over into a new CD at the bank's current rate. If you need the money, withdrawal is straightforward—the bank deposits your principal plus interest into your checking account or mails you a check. If you want to keep it invested but shop around, you can withdraw and open a CD at a different bank that offers a better rate.
The Penalty for Withdrawing Early
If you need your money before the CD matures, you'll pay an early withdrawal penalty. This is usually calculated as a certain number of months of interest—for example, a six-month CD might have a three-month interest penalty. On a $10,000 CD earning 4 percent annually, that would cost you about $100 in lost interest.
Some banks charge a flat dollar amount instead, and a few charge a percentage of your deposit. Always ask what the penalty is before you open the CD. If there's any chance you'll need the money, a CD might not be the right choice—a regular savings account gives you flexibility, even if the rate is lower.
CDs Compared to Savings Accounts and Money Market Accounts
The main difference between a CD and a savings account is access. A savings account lets you deposit and withdraw whenever you want, but the interest rate is usually lower and can change at any time. A CD locks in a higher rate for a set period but penalizes you for early withdrawal.
A money market account sits in the middle: it typically offers a rate between savings and CDs, and you can withdraw money, but usually with limits on how many times per month. If you know you won't need the money for a year or more, a CD usually pays more. If you want flexibility, a savings account is better. A money market account works if you want some growth but also occasional access.
| Account Type | Interest Rate | Access to Money | Best For |
|---|---|---|---|
| Savings Account | Lower, variable | Anytime, unlimited | Money you might need soon |
| Money Market Account | Medium, variable | Limited withdrawals per month | Balancing growth and access |
| Certificate of Deposit | Higher, fixed | Only at maturity without penalty | Money you won't touch for months or years |
FDIC Insurance and Safety
CDs at banks insured by the FDIC (Federal Deposit Insurance Corporation) are protected up to $250,000 per account. This means if the bank fails, you get your money back—principal and interest—up to that limit. This protection applies to each account separately, so if you have a CD and a savings account at the same bank, each is insured for $250,000.
If you want to protect more than $250,000 in CDs, you can open accounts at different banks, and each bank's FDIC coverage is separate. You can also open CDs in different names (for example, one in your name alone and one in joint ownership with your spouse) at the same bank, and each gets its own $250,000 protection.
Who Should Use a CD and When
CDs work best if you have money you won't need for several months or years and want a may provide return without the risk of the stock market. They're popular for saving toward a specific goal—a down payment on a house, a car, or a vacation—when you know roughly when you'll need the money.
CDs are less useful if you might need the money unexpectedly, if you're saving for something less than three months away, or if you believe interest rates will rise significantly soon. If rates are climbing, locking in a rate for five years might mean missing out on higher rates next year. Some people use a "CD ladder"—opening multiple CDs with different maturity dates—so money becomes available at regular intervals without the early withdrawal penalty.
Frequently Asked Questions
Can I withdraw money from a CD before it matures?
Yes, but you'll pay an early withdrawal penalty, usually several months of interest. The exact penalty varies by bank and CD term, so check before you open the account. If you think you might need the money, a regular savings account is safer.
What happens if I don't withdraw my money when the CD matures?
Most banks automatically renew your CD at their current interest rate during a grace period of five to ten days. If you don't want to renew, you must withdraw during that window. Check your bank's renewal terms so you're not surprised by a new rate.
Is my money safe in a CD if the bank fails?
Yes, up to $250,000 per account. The FDIC insures CDs at member banks, so you get your principal and interest back even if the bank goes under. If you have more than $250,000, open CDs at different banks to stay fully protected.
Do I pay taxes on CD interest?
Yes. The interest you earn on a CD is taxable income in the year you earn it, even if you don't withdraw the money until the CD matures. Your bank will send you a 1099-INT form at tax time showing how much interest you earned.
What's the difference between a CD and a bond?
Both lock up your money for a set time and pay interest, but bonds are issued by governments or companies and can be bought and sold on the market. CDs are bank products with FDIC insurance. Bonds typically offer higher returns but carry more risk and less liquidity.