Certificate of Deposit (CD)

A certificate of deposit — or CD — is a bank-issued savings instrument in which you deposit money for a specified term (3 months to 5 years or longer) and receive a fixed rate of interest. CDs are FDIC-insured up to $250,000, making them one of the safest savings vehicles available. In exchange for safety and liquidity restrictions, CDs offer higher rates than savings accounts.

How CDs work

You deposit money with a bank for a specified term. In exchange, the bank pays a fixed rate of interest for that period. When the term matures, the bank returns your principal plus accrued interest.

For example, a $10,000 deposit in a 1-year CD at 4% interest means:

• Year 1: Interest accrues at 4% annually = $400
• At maturity: Bank returns $10,000 + $400 = $10,400

The rate is fixed and guaranteed for the entire term. Unlike savings accounts (where rates can change) or bonds (where prices fluctuate), CDs provide certainty: you know exactly what you will receive at maturity.

CD laddering and term selection

Investors often use “CD laddering” — buying CDs with different maturity dates. For example:

• $5,000 in a 1-year CD
• $5,000 in a 2-year CD
• $5,000 in a 3-year CD

Each year, one CD matures, providing cash. The investor can reinvest maturing CDs at current rates or use the cash. This structure balances liquidity (some cash annually) with longer-term rates (some longer-duration CDs).

FDIC insurance and safety

Bank CDs are insured by the Federal Deposit Insurance Corporation (FDIC) up to $250,000 per depositor per bank. This means if the bank fails, the FDIC guarantees your deposit up to $250,000.

This safety is the primary advantage of CDs — you can deposit money knowing it is backed by the federal government. No credit analysis is needed; no market liquidity risk exists.

For depositors with more than $250,000, FDIC insurance is insufficient. These depositors might split deposits across multiple banks (each insured separately up to $250,000) or use higher-risk but uninsured alternatives.

Early withdrawal penalties

CDs impose early withdrawal penalties if you redeem before maturity. A 1-year CD might impose a penalty of 3 months’ interest. A 5-year CD might impose a 6-month penalty.

These penalties are significant enough that withdrawing early often results in a lower return than if you had left money in a savings account. They are intentional — banks want to lock in customer deposits for predictable funding.

However, some banks offer “no-penalty CDs” with lower interest rates, eliminating the withdrawal penalty. This is a tradeoff: lower rate for more liquidity.

Jumbo CDs and brokered CDs

Jumbo CDs are CDs issued for deposits of $100,000 or more. Because they are larger, they often offer slightly higher rates than standard CDs.

Brokered CDs are CDs issued by banks but sold through brokerage firms. Investors can buy portfolios of CDs from many banks through a broker, providing diversification and convenience.

Brokered CDs still carry FDIC insurance (up to $250,000 per bank), but the primary advantage is access to many banks’ offerings. A broker might offer CDs from 50 banks at different rates, allowing investors to compare and select.

CDs vs. other savings vehicles

CDs vs. savings accounts — CDs offer higher rates (fixed) but lower liquidity (penalty for early withdrawal). Savings accounts offer lower rates but daily access without penalty.

CDs vs. Treasury bills — Treasury bills are risk-free and liquid (trade actively) but offer lower yields. CDs are insured (not risk-free, but backed by FDIC) and less liquid but offer higher yields.

CDs vs. bonds — Bonds can appreciate in value if interest rates fall (capital gains). CDs offer fixed returns with no capital appreciation. Bonds carry interest-rate risk and market risk; CDs carry none.

For conservative savers seeking safety and certainty, CDs are appropriate. For investors seeking return enhancement or market participation, Treasury bills or bonds might be superior.

Comparison to commercial paper

The difference between CDs and commercial paper is instructive. Both are short-term instruments with low default risk. But commercial paper is issued by corporations to raise working capital, while CDs are issued by banks as savings products.

Commercial paper is less safe (corporate credit risk) but offers higher yield. CDs are safer (FDIC-insured) but offer lower yield.

See also