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Definition

Certificate of Deposit (CD)

A savings account with a fixed term and fixed interest rate, higher than regular savings.

Written by Jere Salmisto·Reviewed by CalcFi Editorial·Last verified: 2026-05-13
TL;DR

Certificate of Deposit (CD) is A savings account with a fixed term and fixed interest rate, higher than regular savings. Used in banking.

What Is Certificate of Deposit (CD)?

A Certificate of Deposit (CD) is a type of savings account offered by banks and credit unions where you agree to deposit money for a fixed period (called the term), typically ranging from 3 months to 5 years or longer. In exchange for locking up your money, you receive a historically reliable interest rate that is usually higher than regular savings accounts. CDs are FDIC-insured up to $250,000, making them very safe. The tradeoff is that withdrawing money before maturity typically results in an early-withdrawal penalty that eats into your earnings. CDs are ideal for money you don't need immediate access to and want to grow at a historically reliable rate without market risk.

Related Terms

Savings Account
A bank account for storing money with interest, FDIC-insured and easily accessible.
Interest Rate
The cost of borrowing money or the return on savings, expressed as a percentage.
Liquidity
How quickly and easily an asset can be converted to cash without losing value.

Related Calculators

CD Ladder Calculator→
High-Yield Savings Calculator→
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