Why Do Banks Offer “Weird” Term Length CDs?

I’ve been following certificates of deposit for a while now. Yes, I’m a weirdo.

People love 12-month CDs and 60-month CDs (5 years) because they’re easy to think about. We like the 3-month, 6-month, and 9-month terms because they’re nicely spaced out.

Sometimes people will consider a 24-month CD too.

But lately banks have been doing something different – they’re offering terms that are a month or two more or less than “typical.”

I’m talking about those 11-month and 13-month CDs. Or the 15-month CD.

Why do banks offer this?

👉 Learn more about Marcus

Table of Contents
  1. It’s Mostly Marketing
  2. 1-Month CDs!?
  3. Remember When It Matures
  4. Should You Get These Odd Term CDs?

It’s Mostly Marketing

There isn’t a big difference between a 12-month CD and a 13-month CD.

There might be a business major somewhere that can make the business case for the bank’s investors but for the consumer, they’re the same(ish).

At the level of tens or hundreds of millions of dollars in deposits, which is what banks care about, there’s probably some game you can play with interest rates to get make investors happy. But for you, it doesn’t matter.

Most of the value is in how it just looks weird.

We’re used to round numbers.

With CDs, it’s every three months (a quarter of the year) when you’re shorter than a month. Then you have the 12-month, 18-month, and 24-month CDs. Then it starts to go every year.

Here are the high yield CD terms from Ally Bank:

All typical terms lengths. But then check out their no-penalty CD – it’s a 11-month term.

Snapshot taken on 426/2023 – Don’t worry about the rate, check out the funky 11-month term!

They could do a 12-month term on a no-penalty CD but by making it 11-months, it looks a little more different than their standard offerings.

Then you have a rate table like what we see at CIT Bank:

Rates accurate as of 4/25/2023

The rates on the table aren’t as important as the trend – you have super low rates for all the “standard” terms. But for 6-month, 13-month, and 18-month, you see competitive rates.

6- and 18-month terms aren’t weird but their 13-month is definitely off “schedule.” They also have an 11-Month no penalty CD that yields 4.90% APY.

It’s just to catch your eye when they promote it.

1-Month CDs!?


Then you have situations like Ponce Bank, through RaisinSaveBetter, with their 1-Month CD with a yield of 5.40% APY.

I suppose they get some certainty that they have the funds for a month while paying a higher interest rate. They also aren’t locked into that rate in case broader interest rates drop while still being able to advertise against other certificates of deposit.

But it’s mostly just eye-catching – when’s the last time you saw a 1-Month CD? I can’t even think of one.

🤔 If you aren’t familiar with Raisin, they’re a fintech company that works with banks to help them get deposits. They were formerly known as Savebetter. Your account is managed through Raisin and they have partnerships with a lot of small regional banks that want to get deposits but don’t have the national reach (or budget). You can learn more about SaveBetter here.

Remember When It Matures

For those oddball CD terms, the only “gotcha” is to remember when the CD matures. Many banks will default to rolling over the CD into a new CD of the same term (or whatever is closest at the time it matures).

It’s not intentional, it’s just how CDs work.

If you’re used to your CDs maturing every 12 months and you chose an 11 month CD, you might forget and have it locked into another 11 month term. The bank will email you but you might miss it.

Most banks will let you determine what you want them to do with the CD when it matures. Do that at set up, or sometime shortly thereafter, and you won’t be surprised.

It’s a minor thing but still something to be aware of.

Should You Get These Odd Term CDs?

Sure – why not? There’s nothing inherently good or bad about the more commonly see terms.

With CDs, you’re putting in money you need in the near term. And you want that cash to be 100% safe.

The difference between a 11-month CD and a 13-month CD is miniscule. Pick the highest rate for whatever you think will be a comfortable time period and don’t spend too much time on it.

Or get a no-penalty CD for as long as you can and it’s essentially a savings account with a super high rate. You may have to press a few buttons to access the funds but you get a higher rate.

For example, Ally Bank is my primary bank and the online savings account currently offers 4.35% APY while the 11-Month no-penalty CD is at 4.25% APY. I can open a no penalty CD in just a few button clicks and get a slightly higher yield (my only restriction is I can’t close it within 6 days).

That spread isn’t worth opening a new account, transferring funds via ACH (which takes 3-5 days), and the hassle of an additional tax form. But for a few button clicks? Totally worth it.

The big takeaway is don’t think too much about these – there are bigger fish to fry. 😉

Other Posts You May Enjoy:

Ownwell Review 2024: Property Tax Appeal Service

Ownwell is a service that contests your property tax assessments with your taxing authority so you can pay less in property taxes. You only pay Ownwell if it successfully reduces your tax bill, and the average savings is over $1000. Learn more.

How to Lower Your Cell Phone Bill: 10 Ways to Save

Cell phones and cell phone plans continue to get more expensive. But there are ways you can avoid breaking your budget with your phone. From switching carriers to signing up for Autopay to joining a family plan, here are 10 ways to lower you cell phone bill. Learn more.

How to Lower Your Verizon Bill: 8 Ways to Save

Verizon has one of the fastest and most reliable cell phone networks in the U.S. However, it can be very expensive, especially if you have multiple lines on your account. Thankfully, there are things you can do to lower your Verizon bill. Learn more.

About Jim Wang

Jim Wang is a forty-something father of four who is a frequent contributor to Forbes and Vanguard's Blog. He has also been fortunate to have appeared in the New York Times, Baltimore Sun, Entrepreneur, and Marketplace Money.

Jim has a B.S. in Computer Science and Economics from Carnegie Mellon University, an M.S. in Information Technology - Software Engineering from Carnegie Mellon University, as well as a Masters in Business Administration from Johns Hopkins University. His approach to personal finance is that of an engineer, breaking down complex subjects into bite-sized easily understood concepts that you can use in your daily life.

One of his favorite tools (here's my treasure chest of tools,, everything I use) is Personal Capital, which enables him to manage his finances in just 15-minutes each month. They also offer financial planning, such as a Retirement Planning Tool that can tell you if you're on track to retire when you want. It's free.

He is also diversifying his investment portfolio by adding a little bit of real estate. But not rental homes, because he doesn't want a second job, it's diversified small investments in a few commercial properties and farms in Illinois, Louisiana, and California through AcreTrader.

Recently, he's invested in a few pieces of art on Masterworks too.

>> Read more articles by Jim

Opinions expressed here are the author's alone, not those of any bank or financial institution. This content has not been reviewed, approved or otherwise endorsed by any of these entities.

Reader Interactions


About the comments on this site:

These responses are not provided or commissioned by the bank advertiser. Responses have not been reviewed, approved or otherwise endorsed by the bank advertiser. It is not the bank advertiser's responsibility to ensure all posts and/or questions are answered.

  1. Cynthia Azzam says

    Just got a 14 months CD with Synchrony Bank at 5.15%
    I already had a HYS account with them paying 4.15%. I figured 2 extra months from one year won’t change my life much.

As Seen In: