Are you making these CD errors? 5 costly CD mistakes to avoid this year
Certificates of deposit (CDs) seem like one of the least complicated savings tools available. You agree to leave your money with a bank or credit union for a set period, and you earn a fixed interest rate in return. Straightforward, right? Unfortunately, many savers still make costly missteps — often because they don’t fully understand how CDs work until their money feels “stuck.”
That word can mean different things depending on the account. Does “stuck” mean you can’t touch your cash at all? How long are funds truly locked up? What happens if you need your money sooner than expected? And are early withdrawal penalties always as painful as they sound?
While the goal isn’t to scare you away from CDs, you’ll have the best shot at maximizing these accounts if you understand how they work. Read on to learn about the biggest mistakes people make with certificates of deposit, how to cash out a CD early if you need to, what happens when a CD reaches maturity, and more.
5 common certificate of deposit mistakes to avoid
Certificates of deposit offer an easy way to earn predictable returns, but plenty of small hiccups can quietly chip away at your gains if you’re not careful. From locking in the wrong term to missing better rates elsewhere, these common CD mistakes can cost you hundreds — or even thousands — of dollars over time.
Here are five of the biggest errors savers make and how to avoid them.
Mistake #1: Locking up money for too long
Opening a CD with the longest possible term can be tempting when the advertised rate is more than you can get elsewhere. However, committing to a five-year CD when you might need the money in 18 months can backfire, especially if you wind up paying penalties to access your savings early.
On the flip side, lengthy CD terms can also work against you if rates rise. If you lock in a five-year CD at 3.5% and rates climb to 4.5% the following year, for example, your money remains stuck earning less than newly issued CDs. In that case, you’re left choosing between accepting the lower rate or paying a penalty to move your money.
The solution: Use a CD ladder
A CD ladder helps balance access and yield by dividing your funds into several CDs with staggered maturity dates. Instead of placing $10,000 into one long-term CD, for example, you could split it into five $2,000 CDs maturing every six months:
- 6-month CD
- 12-month CD
- 18-month CD
- 24-month CD
- 30-month CD
In this scenario, the ladder ensures you’re cashing out a CD at maturity every six months with the option to renew, use the funds, or move the money to another account. Your liquidity is considerably better than if you had locked $10,000 into a single CD, and you can take advantage of additional savings opportunities that arise.
Mistake #2: Failing to shop around for the best rates
CD rates vary widely — and that difference can add up fast depending on your CD amount and term. The gap between a top online bank CD offering 4.75% APY and a traditional brick-and-mortar bank offering 2.5% APY equals $225 per year on a $10,000 deposit. Over multiple years, a saver who doesn’t shop around is leaving serious money on the table.
If you want to get the most out of your savings, you should be aware of some basic CD facts:
- Online banks frequently advertise CD rates that are 1.5% to 2% higher than those of traditional banks
- Credit unions can provide competitive yields with lower fees
- Rate comparison websites update CD rates daily
The solution: Always shop around
Before committing to a CD, make sure to check rates at at least five institutions. Spending 20 minutes comparing options can significantly increase your return, whereas failing to take this step can cost you big time.
Mistake #3: Not considering online banks
Some savers automatically open CDs at the same traditional bank where they keep their checking account. But physical branches come with overhead costs — and those expenses can lead to banks offering lower interest rates.
Meanwhile, online banks offer a range of benefits you may not get with a bank down the street. These perks can include:
- No branch costs, which allows higher rates to be passed on to savers
- 24/7 digital access to your account
- The same FDIC insurance protection as traditional banks
The solution: Consider the best online banks for your next CD
Many of the top online banks for CDs offer some of the highest APYs available. Make sure to compare the best CD rates across all financial institutions before you lock up your money.
Mistake #4: Forgetting your CD’s maturity date
CDs don’t quietly expire and wait for you to cash them out. If you miss the window for your CD maturing, your bank will typically auto-renew the account — sometimes at a much lower rate.
The CD maturing window is also very short. Most institutions provide only a seven- to 10-day grace period after maturity to withdraw or make changes penalty-free. Miss that window, and you could find your funds locked up again for another term.
The solution: Make sure CD maturity dates never fall off your radar
When it comes to what happens when a certificate of deposit matures, a simple reminder system can protect your investment. Consider the following moves to ensure that cashing in a CD at maturity remains a possibility:
- Set a calendar reminder 45 days before maturity
- Enable email alerts from your bank
- Review your accounts quarterly
Mistake #5: Choosing CDs without comparing alternatives
CDs can be a solid savings tool — but they’re not automatically the right choice, and they may not be the best for every dollar you set aside.
Before locking up your money, ask yourself what it’s actually for. If this cash is part of your emergency fund, for example, you probably don’t want it to be tied up. In that case, a high-yield savings account gives you immediate access while still earning competitive interest.
If you won’t need the money for more than five years, a CD might also be too conservative. Over longer timelines, stocks, ETFs, and other market-based investments can offer stronger growth potential — even if they come with more volatility.
If you believe interest rates could rise, committing to a fixed-rate CD today could limit your upside as well.
The solution: Consider CD alternatives for part of your savings
Make sure to compare all the savings vehicles available instead of sticking with CDs without a plan. You may find that some or all of your savings would be better off in a different kind of account, but only if you ask the right questions.
Comparing CDs to alternative savings options
When deciding where to park your cash, rates matter — but so does flexibility. CD’s, high-yield savings accounts, and money market accounts can all offer competitive returns in 2026. The key differences come down to how and when you can access your money, whether rates are fixed or variable, and the minimum deposit amounts they require.
The chart below shows how these accounts stack up.
Certificates of deposit vs. high-yield savings accounts
With a CD, you agree to leave your money untouched for a set term — whether that’s six months or five years. In exchange, you receive a competitive fixed rate that won’t change during the term. That predictability can be comforting when you know you won’t need the funds.
HYSAs, on the other hand, offer full liquidity. You can withdraw your money at any time without a penalty. The tradeoff? Rates are variable, meaning they can rise or fall depending on market conditions.
Our advice?
- Choose a CD if you don’t need immediate access and want a guaranteed rate.
- Choose a high-yield savings account if this is emergency savings or cash you might need in the short term.
Certificates of deposit vs. money market accounts
Like high-yield savings accounts, money market accounts provide ongoing access to your funds. Some even offer limited check-writing or debit card access. Rates are typically variable but often competitive with CDs.
The biggest difference with MMAs is the fact that you don’t have to lock up your money for a specific term. These accounts can also have higher minimum deposit requirements than other types of savings, although it depends on the bank.
Our advice?
- Choose a CD if you want predictable returns and can commit to the full term.
- Choose a money market account if you want strong yields with the option to access funds if you need to.
The bottom line: CD mistakes to avoid
The most common CD mistakes tend to be simple ones — things like choosing the wrong term, failing to compare rates, overlooking online banks, and forgetting about a maturity date. However, small oversights like these can cut into your earnings without you even realizing it.
Fortunately, every one of these missteps is preventable. A few extra minutes spent on rate shopping, setting calendar reminders, and matching your CD term to your timeline can make a huge difference in what your money earns.
It also helps to remember that CDs are just one tool in your savings toolkit. They work best when you pair them with other accounts like high-yield savings accounts and money market accounts. While you want to earn the highest rate possible on your savings, it’s important to maintain access, too.
