Simple definition
A certificate of deposit, or CD, is a savings product where you leave money at a bank for a fixed term in exchange for a fixed interest rate. It's usually FDIC-insured up to the legal limit. Think of it as a savings account that trades everyday access for a locked-in rate — you leave it alone, and the bank pays a little more.
Why it matters
CDs offer a predictable, fixed return with FDIC insurance, which makes them a safe home for money you won't need until a set date. The catch is access: pulling money out early usually means forfeiting some interest. They suit specific savings goals better than cash you might need on short notice.
Real-life example
Imagine you put $5,000 into a one-year CD at a fixed rate. You collect the agreed interest when the term ends, but cashing out early would cost you a chunk of that interest as a penalty. These are rounded, hypothetical figures to show how a CD works, not a current rate.
Common mistakes
- Locking money into a CD you might need before the term ends and paying an early-withdrawal penalty.
- Assuming the rate keeps rising with the market, when a CD's rate is fixed at the start.
- Overlooking whether the CD is FDIC-insured and within the coverage limit.
- Choosing a long term for a small extra rate when you value flexibility more.
Pro tips
- Match the CD's term to a date when you know you'll need the money.
- Confirm the CD is FDIC-insured and your balance stays within the coverage limit.
- Compare a CD's rate to a high-yield savings account before locking money away.
- Consider a CD ladder if you want fixed rates plus regular access to cash.
Related Money Dictionary terms
- Bond LadderA set of bonds with staggered maturity dates so a portion comes due at regular intervals for steady access to cash.
- YieldThe income an investment pays you each year, shown as a percentage of its current price.
- Maturity DateThe date a certificate of deposit or other fixed-term product ends, when you can withdraw your money and earned interest without penalty.
- Cash EquivalentA safe, short-term investment that can be converted to cash quickly, such as a money market fund or Treasury bill.
- Money Market FundA low-risk fund that invests in short-term, high-quality debt and aims to keep a stable share price.
- LiquidityHow quickly and easily you can turn an investment into cash without moving its price much.
Frequently asked questions
What happens if I withdraw from a CD early?
Most CDs charge an early-withdrawal penalty, usually taken from the interest you've earned. Depending on the bank and the term, that can wipe out much of your return, and in some cases dip into principal. Because of this, only commit money to a CD that you're confident you won't need until the term ends.
Are CDs safe?
CDs at FDIC-insured banks are among the safest places to keep money, protected up to the legal limit per depositor, per bank. The main risks aren't losing your balance but losing access — through early-withdrawal penalties — and having your fixed rate fail to keep pace with inflation over a longer term. Confirm the coverage before depositing.
How is a CD different from a savings account?
A savings account lets you add or withdraw money freely, but its rate can change anytime. A CD locks your money for a set term at a fixed rate, usually paying a bit more in exchange for that commitment. The trade-off is flexibility: a CD rewards you for leaving the money untouched until it matures.
Knowing what CD (Certificate of Deposit) means is knowledge — the first half. A brick gets placed when you act on it: compare a CD's fixed rate and term to a high-yield savings account before deciding where to park the cash.
Also builds: Investing
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Plain-English education — not personalized legal, tax, or investment advice.