What is a Certificate of Deposit (CD)?

An artistic rendering of a stock chart

A CD is a type of savings account offered by banks and credit unions with a fixed interest rate and maturity date. When you open a CD, you deposit a sum of money for a specified period, which can range from a few months to several years. In exchange, the bank pays you a fixed interest rate, usually higher than a traditional savings account.

Benefits of CDs

  1. Low Risk: CDs are insured by the Federal Deposit Insurance Corporation (FDIC) or the National Credit Union Administration (NCUA), protecting your deposit up to $250,000.
  2. Fixed Returns: CDs offer a fixed interest rate, providing a predictable income stream.
  3. Locked-Up Money: CDs are not liquid. Your deposit is locked until maturity, and withdrawing early costs a penalty, often several months of interest. Stocks and bonds, for all their price swings, can be sold any trading day; a CD cannot. That is the tradeoff for the guaranteed rate: certainty in exchange for access.
  4. No Market Volatility: CD returns aren’t affected by market fluctuations, making them an attractive option for conservative investors.


Types of CDs

  1. Traditional CD: The most common type, with a fixed interest rate and maturity date.
  2. High-Yield CD: Offers a higher interest rate than traditional CDs, often with a longer term or larger deposit requirement.
  3. No-Penalty CD: Allows you to withdraw your money before maturity without facing penalties, but often with a lower interest rate.
  4. Jumbo CD: Requires a larger deposit (typically $100,000 or more) in exchange for a higher interest rate.
  5. Step-Up CD: Offers the option to increase your interest rate if market rates rise during the term.

CD vs. High-Yield Savings Account

The CD’s closest competitor is the high-yield savings account, and the choice between them comes down to one question: might you need the money?

A high-yield savings account pays a variable rate and lets you withdraw anytime. A CD pays a fixed rate and locks you in. When rates are falling, a CD is attractive because your rate is locked while savings rates drift down. When rates are rising, the savings account wins because you keep full access and your rate can climb. For money with a fixed date, a house down payment a year out or next year’s property tax bill, a CD is the cleaner fit. For your emergency fund and anything else you might need on short notice, keep it in savings.

CDs in 2026

As of September 2026, the best widely available 12-month CDs pay around 4.25% APY at credit unions and top online banks, while the best high-yield savings accounts pay roughly 4.10 to 4.20% APY, and the national average 12-month CD pays only about 1.7%. The two top options are nearly tied, which is the point: in 2026 you do not buy a CD to beat savings rates by a mile. You buy it for certainty. The Fed’s benchmark rate sits at 3.50% to 3.75%, and markets are pricing a possible quarter-point hike at the September 16 meeting, so variable savings rates could move either way while your CD rate stays put. Two rules for the reader: never lock up money you will need before maturity just to chase a slightly higher rate, and always compare the CD rate against the best savings rate, not the national average.

CD Strategies

  1. Laddering: Open multiple CDs with staggered maturity dates to create a regular income stream and minimize interest rate risk.
  2. CD Ladder with a Twist: Combine a CD ladder with a high-yield savings account or money market fund to maximize liquidity and returns.
  3. Long-Term CDs: Consider longer-term CDs (5+ years) for higher interest rates, but be prepared to keep your money locked in for the specified term.

Certificates of Deposit are a low-risk option for money with a known timeline. Match the term to the date you will need the money, compare rates across several institutions, and let the guaranteed rate do its quiet work.