Certificates of deposit are low-risk savings tools that offer a stable way to grow your money over time.

Certificates of deposit are investment vehicles that earn interest on a fixed sum of money over a set term

CDs come in varying term lengths, from three- or six-month commitments to decadelong terms. Typically, the longer the term, the higher the interest rate.

CDs come with risks, such as penalties for early withdrawal and inflation

CDs are generally considered fairly safe investment options. A CD bought via a federally insured bank is insured up to $250K.

A certificate of deposit (CD) strategy guide

Popular CD investment strategies include the ladder, barbell, and bullet methods. These strategies can help you get the most out of investing in CDs.

Different CDs can have different term lengths, interest rates, and more

For instance, if a bank needs more deposits to fund loans, then it may offer high interest rates to attract deposits. Alternatively, a large bank with sufficient deposit reserves may have less incentive to grow its CD portfolio, offering lower rates as a result.

Average three-month CD rates reached a historical high of 18.65% in December 1980

Comparatively, average three-month CD rates reached a low of 0.09% in June 2021 amid the economic turmoil of the COVID-19 pandemic. When inflation began to rise in 2022, the Fed began initiating rate hikes to incentivize saving.

Use a CD rate calculator

This CD Rate Calculator allows you to determine your interest earnings and total savings balance at CD maturity. Enter your initial deposit, your interest rate, and your term length in months or years. Click here to use it.

Learn about CD ladders, the investing strategy in which one buys multiple CDs with different maturity dates to capitalize on high interest rates with longer-term CDs while keeping liquidity with shorter-term CDs.

The concept of CDs dates back to the 1600s in Europe

Banks in the US started issuing CDs in the early 1800s as the banking system began to take shape following the Revolutionary War. The federal government did not formally insure CDs until the FDIC was formed in 1933.

Explore current CD interest rates

Data itself is not (exactly) a financial advisor, but it can help you decide between a variable or fixed rate CD, or CDs with different term lengths. A chart from the Federal Reserve shows the three-month trend of CD interest rates.

Experts recommend keeping one to two months' worth of expenses in checking

That amount allows you to pay your bills and avoid overdraft fees while ensuring you don't lose interest. Most checking accounts have a near-zero interest rate (0.07% APY on average) while high-yield savings could earn up to 4% as of 2026. Cash sitting in your checking account can mean a loss of hundreds of dollars.

Savings accounts earn more interest and limit monthly transactions

While the checking account is many people's primary daily account, savings accounts can earn customers more in interest, though access to these funds is generally more limited. Customers can earn several percent interest in savings accounts compared to near-zero checking account rates.

What’s the outlook for CD rates in 2025?

The federal funds rate can have a big impact on CD interest rates. That means it also affects the amount of money any given CD can earn you. To learn more about how CD rates will look in 2025, and how recent rate cuts correlate to that, read this article.

Not all companies with bank-sounding names are actually FDIC-insured banks

When purchasing a certificate of deposit, it's important to know if you are purchasing a “deposit” product issued by an FDIC-insured bank.

Banks make money by loaning customer deposits and earning interest

This means the interest you earn on your deposits is lower than what the bank earns on the same amount. Banks often keep cash reserves (though a minimum requirement was rescinded in 2020) but generally invest in government bonds, corporate securities, and loans to other banks. During bank runs, depositors withdraw more than the bank has on hand.

Treasury bonds, notes, and bills are critical vehicles for the federal government to raise money for public expenses and manage the national debt

For investors, they're all usually considered low-risk options since they’re backed by the federal government.

Although credit unions offer many of the same services as traditional banks, they differ in that credit unions operate with not-for-profit status and are run by and for their members.

Series I bonds are a form of government savings bonds created to shield your investments from inflation

Specifically, I bonds earn interest from both a fixed rate and an inflation rate. This article explains who might benefit from investing in I Bonds—for instance, people seeking to invest savings they do not need to access in the near future.

For every $100 you deposit, your bank puts a few cents in the FDIC insurance fund

This is a result of the 1933 Banking Act that established the Federal Deposit Insurance Fund. The law sought to prevent bank runs like those that decimated the banking industry amid the Great Crash and subsequent major depression. Today, individual depositors are insured up to $250K at each bank where they have an account.

Read about the situations where a high-yield savings account doesn't make sense

While financial experts often recommend high-yield savings accounts, one expert argues that prioritizing adding more money to one doesn't make sense for someone who has a lot of high-interest debt or isn't taking advantage of their company's 401(k) match.

Are I-Bonds a good investment?

I-Bonds are savings bonds issued by the US government that can help protect savings from inflation. While that sounds positive, I-Bonds have a few disadvantages, too—for instance, these bonds have to be held for at least a year before you can cash out.

The CD whose rates change based on Villanova basketball games

Ardent Credit Union in Philadelphia tied the interest rates of one of its certificates of deposit to whether Villanova won or lost a basketball game. A win moved the rate to 4.25%, while a loss reduced it to 3.9%. Financial experts say its only beneficial for a narrow group

Master the banking basics

Before deciding on a credit union, it’s important that you understand the basics. That way you can know exactly what’s happening with your hard-earned money behind the scenes. Flip through these flashcards to make sure you understand key terms like “deposit” and “checking account.” Then, you can read up on top banking products and start to find a credit union that works for you. Click here, then scroll down the page to find the cards.

The private credit industry—which offers nonbank loans directly to businesses, particularly privately held midmarket companies—grew from a $250B asset class in 2010 to around $1.5T in early 2024.

Are credit unions really worth it?

Credit union perks sound great on paper. They promise better interest rates and competitive customer service. But does this really translate to financial benefit for members? A new report dives deep into transaction data and answers with a resounding “yes.” Credit unions yield benefits of $179 per member or $376 per household. Dive deep into the data and read the report here.

A 401(k) plan allows workers to save for retirement without paying taxes until later

With a 401(k) plans you can invest more money now and let it grow with compound interest. Americans have more than $7T invested in these types of accounts.

Permanent life insurance offers access to a cash value account, which is like a savings account

It's a huge perk of purchasing permanent life insurance. Policyholders often use these accounts as another investment tool. In this podcast episode, NerdWallet experts break down how you can use your cash value account to invest, plus the pros and cons of this tactic.

Stablecoins could give people in high-inflation economies access to stronger currencies

Specifically, stablecoins could provide a way to make sure these funds remain valuable during times of volatility. Some examples of people without access to the US dollar using stablecoins as a store of value have been observed in Venezuela.

The Federal Reserve's decisions can impact your money

Car loans, mortgages, business investments—these and more can be drastically impacted by the adjustment of the Federal Reserve’s federal funds rate. Alternatively, savers can earn higher, low-risk yields on their savings when the Fed’s target rate is higher.

See how 30-year fixed mortgage rates have changed over time—from a 1980s peak of roughly 18%, to hovering around 3% during the COVID-19 pandemic.

Zero-coupon bonds have no regular interest dates over the length of the loan

Instead, they pay all the interest at once when the bond hits its maturity date. These bonds aren’t the right investment for everyone, but they do carry some pros, like a lower initial investment cost.

Congress banned banks from paying checking account interest for 80 years

Known as "Regulation Q," the act sought to stop bank competition for customers involving increasing interest rates in the 1930s. This competition led banks to make reckless investment decisions to pay higher interest rates. During the ban, banks competed by focusing on convenience (ATMs, branches), relying on fees, and building relationships.

Credit unions, explained

Proponents of credit unions often point to the fact they’re not-for-profit cooperatives instead of for-profit businesses as a key selling point. This explainer dives into what this looks like in action—instead of pocketing the profits from interest rates, credit unions reinvest that money into the products and services they offer. For customers, this tends to create a more personal and community-oriented experience.

When compared to stocks and bonds, alternative investments are often less regulated

Alternative investments are also often less liquid than traditional investments; they carry unique risk, return, and tax considerations.

Companies sometimes issue corporate bonds to raise capital

These bonds offer investors regular interest payments in addition to the return of the principal amount at maturity. They allow companies to raise capital without losing ownership.

Banks have increased small loan programs since 2018, upping competition for payday lenders

One of the reasons payday lending flourished for nearly two decades is that most banks charged high overdraft fees and didn't offer small loans. However, since 2018, banks have increased their small loan options. Supporters say this provides safer alternatives for consumers, as banks are subject to more regulatory measures and are less likely to allow consumers to keep rolling over loans.

The US Government sells two types of savings bonds: EE bonds and I bonds

EE bonds have fixed interest rates that the buyer is informed of when they purchase the bond. I bonds, however, earn a rate that can change every six months. A comparative chart details the most significant differences between EE bonds and I bonds.

Explore a guide to 529 college savings plans

Investors put after-tax dollars into these education-earmarked accounts, and like a 401(k) or IRA, they invest them into stocks, bonds, or funds. When it comes time to withdraw, investors do not pay any taxes on distributions. However, the money must be used for approved expenses like college tuition, textbooks, and trade schools.