What Is Certificate of Deposit?
A certificate of deposit (CD) is a savings product that pays a fixed interest rate for a set term. Learn how CDs work, CD laddering, and when they make sense.
Definition
A certificate of deposit (CD) is a time-bound savings product offered by banks where you deposit money for a fixed term (typically 3 months to 5 years) in exchange for a guaranteed interest rate. The bank pays you a higher rate than a savings account because you agree not to withdraw the money until the term ends. If you withdraw early, you pay a penalty (usually several months of interest).
CDs are attractive when you want a guaranteed return and do not need the money during the term. Unlike high-yield savings accounts where rates can change daily, a CD locks in your rate for the entire term. If you open a 2-year CD at 5.0% and rates drop to 3.0% a year later, your CD still pays 5.0%.
A popular strategy is "CD laddering" -- splitting your money across CDs with staggered maturity dates (1-year, 2-year, 3-year, etc.). As each CD matures, you reinvest at the current rate. This gives you regular access to a portion of your money while still earning higher fixed rates.
Real-World Example
You have $30,000 in savings you will not need for 2 years. You could put it in a savings account earning a variable 4.5%, or lock it in a 2-year CD at 4.8%. If rates drop over the next two years (as many economists predict), the CD guarantees you 4.8% while the savings account rate falls. After 2 years, you have earned approximately $2,880 in guaranteed interest. The tradeoff: if you need the money early, the penalty might cost you 3-6 months of interest.
Why It Matters
CDs are useful when you want certainty. In a falling-rate environment, locking in today's rate can be advantageous. They are also useful for savings goals with known timelines (a down payment in 18 months, a tuition payment in 2 years). However, in a rising-rate environment, CDs can be a disadvantage because your money is locked at the old, lower rate. The key is matching the CD term to when you will actually need the money.
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Frequently Asked Questions
What happens if I withdraw from a CD early?
You pay an early withdrawal penalty, typically 3-12 months of interest depending on the CD term. Some banks offer no-penalty CDs with slightly lower rates. Always understand the penalty before opening a CD.
Are CDs FDIC insured?
Yes. CDs at banks are FDIC insured up to $250,000 per depositor per bank. Your principal and earned interest are guaranteed by the federal government.
What is a CD ladder?
A CD ladder splits your money across CDs with different maturity dates (e.g., 1-year, 2-year, 3-year). As each CD matures, you reinvest at the current rate. This gives you regular access to a portion of your money while earning higher fixed rates.
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