Best 18-month CD rates — October 2021

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Deciding where to stick your savings is tricky. Savings accounts and money market accounts are highly liquid but usually offer a low rate of return.

Long-term CDs usually offer better rates. But unless you’re willing to pay a premium for withdrawing your funds early, they’ll be locked in for years. An 18-month CD offers the best of both worlds: a higher yield than a standard savings account and a low level of commitment.

Bankrate’s guide to choosing the right CD rate

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Methodology for Bankrate’s Best CD Rates

At Bankrate, we strive to help you make smarter financial decisions. We follow strict guidelines to ensure that our editorial content is unbiased and not influenced by advertisers. Our editorial team receives no direct compensation from advertisers and our content is thoroughly fact-checked to ensure accuracy.

Bankrate regularly surveys around 70 widely available financial institutions, made up of the biggest banks and credit unions, as well as a number of popular online banks.

To find the best CDs, our editorial team analyzes various factors, such as: annual percentage yield (APY), the minimum needed to earn that APY (or to open the CD) and whether or not it is broadly available. All of the accounts on this page are insured by the Federal Deposit Insurance Corp. (FDIC) or the National Credit Union Administration (NCUA).

When selecting the best CD for you, consider the purpose of the money and when you’ll need access to these funds to help you avoid early withdrawal penalties.

How does an 18-month CD work?

With a CD, you agree to leave your money in the account for a set period of time — in this case, 18 months. In return for your commitment to leave the money alone, you receive a higher yield from your bank or financial institution than you would earn in a savings account.

With an 18-month CD, your interest rate is locked in, so you don’t have to worry about your bank potentially lowering the rate on your account.

An 18-month CD can be ideal for setting aside money for short-term goals, such as going on vacation or saving for a car down payment. You can also use an 18-month CD to build a CD ladder.

Don’t assume that the best 18-month CD rates are found at your current bank. Instead, compare CDs online.

The best 18-month CD rates for October 2021

Note: The annual percentage yields (APYs) shown are as of Oct. 12, 2021. The APYs for some products may vary by region.

Today’s top widely available 18-month CD pays 0.75 percent APY, which may be a sufficient length of time to invest money for short-term financial obligations, like saving for a down payment on a house.

Finding the best 18-month CD rate

Finding the best 18-month CD may take some time. Besides the interest rate, you’ll need to compare early withdrawal penalties and minimum deposit requirements. Also, find out whether you’ll be responsible for any fees.

Here are the top widely available 18-month CD rates. Compare these offers, then calculate how much interest you would earn when your CD matures.

Live Oak Bank: 0.75% APY; $2,500 minimum deposit

Live Oak Bank is an online-only bank based in Wilmington, North Carolina. It was founded in 2007. It offers a high-yield online savings account and CDs in seven different terms.

Live Oak Bank has a mobile app that allows customers to manage their accounts from anywhere. It offers a limited number of products, but yields are competitive.

First Internet Bank of Indiana: 0.65% APY; $1,000 minimum deposit for this APY

First Internet Bank of Indiana was the first FDIC-insured financial institution to operate entirely online, according to the bank’s website. First Internet Bank of Indiana opened in 1999 and is available in all 50 states.

First Internet Bank offers eight terms of CDs, a money market savings account with a competitive yield, a savings account and two checking accounts.

Sallie Mae Bank: 0.65% APY; $2,500 minimum deposit

Sallie Mae Bank offers CDs, a savings account, money market account, credit cards and private student loans. Sallie Mae Bank offers competitive yields on both its CDs and its savings deposit accounts.

Sallie Mae Bank was established in 2005 and has its headquarters in Salt Lake City. In 2014, Sallie Mae became a stand-alone consumer banking business.

Ally Bank: 0.60% APY; $0.01 minimum deposit

Ally Bank is an online bank that offers seven terms of CDs, as well as savings, checking and money market accounts and IRAs. Ally Bank features low minimum balances and competitive APYs.

Ally Bank’s early withdrawal penalties are less harsh than those at most other banks. For example, the penalty on a five-year CD is 150 days of interest, compared with the 180 days of interest charged by many banks.

Synchrony Bank: 0.60% APY; $0.01 minimum deposit

Synchrony Bank offers competitive yields across 12 terms. All standard CD terms typically offered by banks and credit unions are available.

If you fund your Synchrony Bank CD within 15 days and the rate rises on the day it’s funded, you receive the higher rate.

The bank also offers a savings account and a money market account. The savings account has a competitive APY and has no minimum balance requirement.

Limelight Bank: 0.60% APY; $1,000 minimum deposit

Limelight Bank is a division of Capital Community Bank. It has its headquarters in Provo, Utah.

Limelight Bank offers CDs only on its website and requires a minimum deposit of $1,000 on all of its four CD terms. You’ll have to look elsewhere if you’re looking for a CD with a term of longer than three years.

Pentagon Federal Credit Union: 0.60% APY; $1,000 minimum deposit

Pentagon Federal Credit Union (PenFed) was established in 1935. It has more than 2 million members and has its main office in McLean, Virginia.

PenFed has nine terms of CDs. They range from a six-month CD to a seven-year CD.

TIAA Bank: 0.60% APY; $1,000 minimum deposit

TIAA Bank is a division of TIAA FSB and has 10 financial centers, all in Florida.

TIAA offers CD terms ranging from three months to five years. It also offers a Bump Rate CD, which allows a one-time rate bump should rates go higher. TIAA Bank offers Certificate of Deposit Account Registry Service (CDARS) for customers with large deposits who need expanded FDIC insurance coverage beyond the $250,000 limit.

SchoolsFirst Federal Credit Union: 0.60% APY; $20,000 minimum deposit for this APY

SchoolsFirst Federal Credit Union was formed during the Great Depression in 1934. Founded by school employees, the credit union has 50 branches.

SchoolsFirst Federal Credit Union has low minimum balances and CD terms from 30 days to five years. The more money you put in your CD, the higher the APY. CDs at this credit union have four balance tiers: $500, $20,000, $50,000 or $100,000.

Marcus by Goldman Sachs: 0.55% APY; $500 minimum deposit

Marcus by Goldman Sachs is a brand of Goldman Sachs Bank USA. Marcus offers competitive yields on savings accounts and CDs.

Marcus offers nine terms of regular CDs, three no-penalty CD terms and a savings account. Marcus also offers personal loans, debt consolidation loans and home improvement loans. Savings products from Marcus are provided through Goldman Sachs Bank USA.

Alliant Credit Union: 0.55% APY; $1,000 minimum deposit

Alliant Credit Union was established in 1935 as the United Airlines Employees Credit Union. It has more than $14 billion in assets. It is the largest credit union in Illinois and one of the largest in the United States. There are 600,000 Alliant members nationwide.

Those eligible for membership include employees of qualifying companies or members of qualifying organizations, family members of an existing Alliant Credit Union member and anyone who lives in the Chicago area, where Alliant is headquartered.

Navy Federal Credit Union: 0.55% APY; $1,000 minimum deposit for this APY

Navy Federal Credit Union has nearly 11 million members and is the world’s largest credit union. It has a global network of more than 340 branches. Navy Federal Credit Union has its headquarters in Vienna, Virginia.

Membership at Navy Federal Credit Union is open to active duty members of all branches of the armed forces, veterans and their families, as well as Department of Defense civilian and contract employees.

TAB Bank: 0.55% APY; $1,000 minimum deposit

TAB Bank was established in 1998 in Ogden, Utah, as a banking service inside truck stops. TAB (Transportation Alliance Bank) serves businesses and individual customers.

It offers several checking accounts, a couple of savings account options, a money market account and CDs in eight terms, from six months to five years.

VyStar Credit Union: 0.50% APY; $500 minimum deposit

VyStar Credit Union was founded in 1952. It was chartered at Naval Air Station in Jacksonville, Florida, and originally was called Jax Navy Federal Credit Union.

Membership at VyStar Credit Union is open to anyone who works or lives in the 49 Florida counties or the 10 Georgia counties listed on its website.

VyStar Credit Union offers 10 CDs terms ranging from three months to five years. It also offers a one-year CD for Kid’s, VyTeen, Bravo and Achieve members only.

Discover Bank: 0.50% APY; $2,500 minimum deposit

Discover Bank offers a wide selection of banking products. It has been offering deposit products online since 2007, including 12 CD terms, a money market account, a savings account and a checking account.

Can you lose money in a CD?

For the most part, as long as your money is deposited at an insured institution, you won’t lose money. Double-check that your CD is in an FDIC-insured bank or in a National Credit Union Administration (NCUA) credit union. NCUA credit unions are insured by the National Credit Union Share Insurance Fund (NCUSIF). These entities insure bank deposits against failure, protecting your money for typically up to $250,000.

Because CDs are cash deposit accounts, your principal, or initial deposit amount, is safe. You don’t have to worry about losing money to market crashes, either. However, your account could lose value due to inflation. Depending on the situation, the yield you earn in a CD might not keep up with inflation, resulting in a loss of spending power.

Also, if you withdraw money out of a CD before it matures, you will likely have to pay a fee, such as a few months’ worth of interest.

If you’re looking to protect your principal, though, your money is safe in a CD if you’re within FDIC insurance limits and guidelines.

18-month CD vs. other short-term investments

An 18-month CD is a relatively short-term investment. While your money is locked up for a year and a half, you’ll have access to it — plus interest — when the term expires. When comparing your savings options, it’s important to take into account liquidity as well as yield.

18-month CD vs. 12-month CD

When you get a 12-month CD, you’re likely to see a smaller yield than an 18-month CD. Because a 12-month CD doesn’t lock your money away as long, the yields are often a little lower.

However, with the shorter-term CD, you can access your money six months earlier. So, if you think you want penalty-free access to your money before an 18-month CD matures, it makes sense to take the lower yield in return for slightly better liquidity.

Consider savings accounts with higher yields

You can find high-yield savings accounts that pay rates similar to top-yielding shorter-term CDs, like those with terms of 12-18 months.

However, with a savings account, you have more immediate access to the money, and you typically won’t be penalized for making withdrawals. If you have short-term goals you’re saving for, or if you want a more accessible emergency fund, a savings account can be a smart choice.

Consider money market accounts with high yield

Another possibility, especially if you want check-writing privileges, is a money market account. There are money market accounts with much higher yields than traditional savings accounts, as well as quick, easy access to your money when you need it.

With a top-yielding money market account, you might find a similar yield compared with top-yielding 18-month CDs. However, if you’re looking for penalty-free liquidity and accessibility, a money market account can be a good choice.

When you choose money market or savings accounts, you have to be aware of the fact that your rate could drop at any time. With a CD, you lock in a rate, so you don’t have to worry about falling rates. The flip side, though, is that rates could go up, and if your money is in a CD, you can’t take advantage of the higher rate until after the term expires.

Short-term vs. long-term CDs

When considering an 18-month CD, compare it to longer-term accounts. There are CDs that will lock up your money for two years or more, but they also pay higher yields.

If you’re willing to avoid touching your money for a longer period of time, you could take advantage of yields that provide you with much better returns than an 18-month CD. In fact, a five-year CD often has better yields, and your money remains safe.

There are even 10-year CDs, sometimes designed to be held in an IRA, that can provide you with safe yields.

Before making a decision about what type of CD you want, consider your financial needs and situation. Think about when you might need to access the money and weigh it against the yield you receive.

Before taking the plunge

An 18-month CD is a low-risk investment. But before you purchase one, it’s important to know what you’re getting yourself into.

Ask if you’ll have to maintain a certain balance to earn the APY. While you’re at it, find out how often you’ll receive the interest you’re earning from your bank or credit union. That way, it’ll be easier to hit your savings target or another financial goal.

Best 18-month CD rates for October 2021

Bank APY Minimum Deposit for APY
Live Oak Bank 0.75% $2,500
First Internet Bank of Indiana 0.65% $1,000
Sallie Mae Bank 0.65% $2,500
Ally Bank 0.60% $0.01
Synchrony Bank 0.60% $0.01
Limelight Bank 0.60% $1,000
Pentagon Federal Credit Union 0.60% $1,000
TIAA Bank 0.60% $1,000
SchoolsFirst Federal Credit Union 0.60% $20,000
Marcus by Goldman Sachs 0.55% $500
Alliant Credit Union 0.55% $1,000
Navy Federal Credit Union 0.55% $1,000
TAB Bank 0.55% $1,000
VyStar Credit Union 0.50% $500
Discover Bank 0.50% $2,500

Learn more about other CD terms:

Learn more about CDs:

Written by
Libby Wells
Contributing writer
Libby Wells is a contributor covering banking and deposit products. She has more than 30 years’ experience as a writer and editor for newspapers, magazines and online publications.
Edited by
Wealth editor
Reviewed by
Professor of finance, Creighton University