A CD is a savings account where you lock money away for a set time in exchange for a higher interest rate
A certificate of deposit (CD) is an agreement between you and a bank or credit union. You give them a sum of money, they promise to hold it untouched for a specific period—anywhere from three months to five years—and in return they pay you a fixed interest rate that's usually higher than what a regular savings account offers. When the time is up, you get your original money back plus the interest earned.
The trade-off is straightforward: you can't touch the money without a penalty. If you withdraw before the term ends, the bank deducts an early withdrawal fee, which typically wipes out some or all of the interest you've earned. That penalty is why banks can afford to pay more—they know your money will stay put.
CDs are insured by the Federal Deposit Insurance Corporation (FDIC) up to $250,000 per account, per bank. If you have $50,000 in a CD at one bank and $200,000 at another, both are fully protected. If you put $300,000 in a single CD at one bank, only $250,000 is covered.
Key Takeaways
- A CD locks your money for a set term in exchange for a may provide interest rate higher than regular savings accounts.
- Early withdrawal before the term ends triggers a penalty that usually costs you some or all of the interest earned.
- CD rates are fixed—they don't change if the market moves—so you know exactly what you'll earn from day one.
- FDIC insurance protects up to $250,000 per CD per bank, making them a safe place to store money you won't need soon.
- Shorter terms (three to six months) have lower rates; longer terms (three to five years) have higher rates.
How CD interest rates work and why they vary
When you open a CD, the bank tells you the annual percentage yield (APY)—the total interest you'll earn over one year, expressed as a percentage. That rate is locked in for the entire term. If you buy a one-year CD at 4.5% APY, you'll earn 4.5% no matter what happens to interest rates in the economy.
The rate you're offered depends on three things: the term length, the amount you deposit, and the current market. Longer terms usually pay more because the bank gets to use your money for longer. A five-year CD might pay 4.8% while a six-month CD pays 3.2%. Some banks offer slightly higher rates for larger deposits—say, $25,000 or more—but this varies by institution.
Online banks typically offer higher CD rates than brick-and-mortar banks because they have lower overhead costs. A national online bank might offer 5.0% on a one-year CD while a local bank offers 3.8% for the same term. Shopping around matters.
When early withdrawal penalties actually cost you money
If you need your money before the CD matures, you can withdraw it—but you'll pay a penalty. The penalty is usually expressed in 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 at 4.5% APY with a three-month penalty, that's roughly $112 gone.
The penalty can be steep enough to erase your gain entirely. If you open a six-month CD at 3.0% APY and withdraw after two months, the penalty might be $75 while you've only earned $50 in interest. You'd actually lose $25 of your principal. Always ask the bank what the penalty is before you open the account—it's usually stated in the disclosure document they give you.
Some banks now offer "no-penalty CDs" that let you withdraw early without a fee, but they pay lower interest rates to offset that flexibility. A no-penalty CD might pay 3.5% while a standard CD pays 4.5%. You're trading rate for flexibility.
CD laddering: a way to access money without losing the rate advantage
If you want the higher rates CDs offer but also need access to your money, you can use a strategy called CD laddering. Instead of putting all your money in one long-term CD, you split it across several CDs with different maturity dates.
For example, with $10,000, you might buy five $2,000 CDs: one that matures in one year, one in two years, one in three years, one in four years, and one in five years. Each year, one CD matures and you can withdraw that money without penalty. You can then use it or reinvest it in a new five-year CD, keeping the ladder going. This way you get rates close to what long-term CDs offer while having access to a portion of your money every year.
Laddering works best when you have a lump sum to invest and you're confident you won't need the money urgently. It requires planning and discipline, but it removes the all-or-nothing feeling of locking money away for five years.
How CDs compare to regular savings accounts and money market accounts
| Feature | CD | Regular Savings Account | Money Market Account |
|---|---|---|---|
| Interest rate | Fixed for the term; usually 3–5% | Variable; usually 0.01–0.5% | Variable; usually 1–2% |
| Access to money | Locked until maturity; early withdrawal costs a penalty | Withdraw anytime without penalty | Limited withdrawals per month; penalty for excess |
| FDIC insurance | Up to $250,000 | Up to $250,000 | Up to $250,000 |
| Best for | Money you won't need for months or years | Emergency fund or money you need quick access to | Money you want to earn more on but might need within a year |
A regular savings account gives you complete flexibility—you can withdraw whenever you want—but the interest rate is almost always lower than a CD. You're paying for that convenience with a smaller return. A money market account sits in the middle: it pays more than a savings account but less than a CD, and it limits how many times you can withdraw per month (usually six).
Choose a CD if you have money you genuinely won't need for at least six months. Choose a savings account if you need quick access. Choose a money market account if you want a middle ground and don't mind the withdrawal limits.
What happens when your CD matures
When your CD reaches its maturity date, the bank sends you a notice—usually 10 to 30 days before—telling you what happens next. You have a few options. You can withdraw the money and the interest, you can let it automatically renew into a new CD at the current rate, or you can move it to a different account.
If you do nothing, most banks automatically roll your CD into a new one at the same term length but at whatever rate they're currently offering. That new rate might be higher or lower than what you had. It's worth paying attention during this window because if rates have dropped, you might want to shop around or move the money to a savings account instead.
Some banks give you a grace period—usually 7 to 10 days after maturity—where you can withdraw without penalty. After that window closes, you're locked in again. Read the maturity notice carefully so you don't miss your chance to move the money if you want to.
Frequently Asked Questions
Can I withdraw money from a CD before it matures?
Yes, but you'll pay an early withdrawal penalty that usually costs you some or all of the interest earned. The penalty amount varies by bank and by CD term. Some banks offer no-penalty CDs, but they pay lower interest rates. Always ask what the penalty is before opening the account.
What's the difference between a CD and a savings account?
A CD locks your money for a set term and pays a higher fixed rate, but you can't touch it without a penalty. A savings account lets you withdraw anytime without penalty but pays much lower interest. Use a CD for money you won't need soon; use a savings account for money you might need quickly.
Is my money safe in a CD?
Yes. CDs are insured by the FDIC up to $250,000 per account per bank. Your money is protected even if the bank fails. If you have more than $250,000, spread it across multiple banks to keep all of it insured.
What happens if I need my money before the CD matures?
You can withdraw it, but you'll pay a penalty. The penalty is usually a set number of months of interest. For example, a three-month penalty on a $10,000 CD at 4.5% APY costs about $112. In some cases, the penalty can be larger than the interest you've earned, so you'd lose part of your principal.
Do CD rates change after I open the account?
No. Your rate is fixed for the entire term. If you open a two-year CD at 4.5% APY, you'll earn 4.5% for the full two years, even if rates in the economy go up or down. That's the trade-off: you get certainty, but you can't benefit if rates rise.