What is a certificate of deposit? A savings tool for stable returns
A certificate of deposit (CD) offers a secure, fixed-rate way to grow your savings over a set period, ideal for those seeking predictable, low-risk returns.
Key takeaways
A CD is a type of time deposit where you agree to leave your money in an account for a fixed term in exchange for a guaranteed interest rate.
CDs often offer more competitive interest rates than other savings products like traditional savings accounts or money market accounts, allowing you to earn more on your savings.
Because withdrawing funds early can result in penalties, CDs work best for savings you can leave untouched until maturity.
What is a certificate of deposit?
If you're looking for a simple savings option to grow your money, a certificate of deposit (CD) might be worth exploring. But what exactly is a certificate of deposit?
A CD is a type of time deposit offered by a bank or credit union that typically provides a fixed interest rate for a set term. During that period, your funds stay untouched, and early access could result in a penalty that may reduce your earnings.
Unlike typical savings accounts, CD rates are locked in when you open the account, which may appeal to those looking for predictable returns without exposure to market swings. They also typically offer higher interest rates compared to traditional savings options and can be competitive with other high-yield products, depending on market conditions. With no ongoing management or sudden changes, CDs could be a useful part of a more conservative financial plan. Understanding the definition of a certificate of deposit and how a CD account works can help clarify what role it may play in long-term savings and what to expect from a CD account over time.
How does a CD account work?
But how exactly does a CD account work? Instead of constantly checking rates or rebalancing portfolios, a CD may offer a more hands-off way to grow your funds.
Rather than tracking market swings or adjusting your strategy, CDs allow you to deposit your funds for a fixed term, which can range from a few months to multiple years. The interest rate is locked in when the CD is opened and usually stays fixed through to maturity, helping you earn a predictable annual percentage yield (APY) without reacting to market changes.
Here’s how it generally works:
Choose a financial institution: Select what bank or credit union you want to open an account with.
Select a term: When you open a certificate of deposit, you agree to set aside a specific amount of money for a set amount of time, known as the CD term. This is usually anywhere between three months and five or more years.
Deposit your funds: Minimum initial deposits and available terms can vary depending on the bank or credit union you choose. Some institutions might have higher entry points, while others make it easier to get started with lower amounts. Raisin only requires a $1 minimum deposit.
Earn guaranteed interest: During this period, your funds stay untouched, earning a fixed APY that helps you calculate potential returns without surprises.
Wait until maturity: Once your term begins, early access to your funds can come with a penalty. That early withdrawal penalty might lower your earned interest or reduce your balance.
- Choose your next steps: Once your CD reaches maturity, you have a few options on how you want to move forward, such as withdrawing your money and earnings or rolling it over into a new CD. If you miss your maturity date and grace period, your CD may automatically renew at a lower interest rate, so you might want to keep track of your terms.
Key CD account terms you should know
To better understand how a CD account works in practice, it may help to get familiar with a few common terms you’re likely to come across:
Term/maturity refers to how long your money stays in the time deposit. Once you choose a term (e.g., six months or three years), your funds generally remain locked in until that period ends.
Annual percentage yield (APY) shows the total amount of interest your CD might earn in a year, including compounding effects. It can give you a clearer picture of your potential savings growth.
Compounding frequency reflects how often interest is added to your balance. This might be done daily, monthly, or quarterly, and more frequent compounding could lead to slightly higher returns.
An early withdrawal penalty is a financial charge that may apply if you take your money out before the CD matures. This could reduce the interest you've earned or even cut into your original deposit.
- Grace period and automatic maturity refer to a short window of time after the CD term ends. During this period, you can either withdraw your funds or renew. If you don’t take action when your CD matures, the bank might automatically roll your CD into a new term.
Key features of a certificate of deposit account
When exploring CD account options, it helps to understand the features that make them unique. Key features include:
Fixed terms
Each certificate of deposit has a fixed term, which means your funds stay locked in for a preset period. This is usually anywhere from a few months up to several years. Generally, the longer the term, the higher your interest rate may be.
Fixed or predictable interest rates
CDs typically include fixed interest rates, offering a predictable way to grow your savings without being affected by changing interest rates during the term.
FDIC or NCUA insurance
Given that your institution is insured, your funds are typically insured (either by the FDIC if you open the CD through a bank or by the NCUA if it’s through a credit union) up to $250,000 per depositor, which might offer extra safety and peace of mind.
Low risk
Since CDs don’t move with the stock market, they might be a helpful financial tool if you're aiming for stability in your investment approach.
Limited liquidity
Keep in mind that you may face a penalty if you need to withdraw money early, which could cut into your interest earnings or even your original deposit amount in some cases.
Automatic renewal option
Some CDs renew automatically at maturity, which could make it easier to continue growing your savings without needing to reinvest on your own. However, automatic renewal might lead to lower interest rates, so you might want to double-check your options before allowing automatic renewal to take place.
Compounding interest
Interest might be compounded daily or monthly, depending on the institution, and that compounding frequency could affect what you earn over the full term.
Minimum deposit requirements
Minimum deposit amounts vary, and some institutions may have higher minimum deposit requirements (e.g., starting at around $500). That said, platforms like Raisin make access much easier, allowing you to open a CD account starting with just $1.
Bank
Product
APY
Maturity
Raisin is not an FDIC-insured bank or NCUA-insured credit union and does not hold any customer funds. FDIC deposit insurance covers the failure of an insured bank and NCUA deposit insurance coverage covers the failure of an insured credit union.
What types of CD accounts are available?
Depending on your goals, different types of CD accounts might offer the right balance between access and earnings.
Traditional CDs: A traditional, or fixed-term CD, may be suitable if you're able to leave your money untouched for a set period. It usually offers a higher APY as a reward for that commitment.
No-penalty CDs: If you need more flexibility, no-penalty CDs might be worth exploring, as they let you withdraw funds early without facing a penalty.
Promotional CDs: Looking for short-term opportunities? Some banks provide promotional CDs with competitive rates, often tied to limited-time terms or specific deposit amounts.
You can compare fixed and flexible options through Raisin, track interest earnings monthly, and get started with as little as $1. Choosing the right CD depends on how accessible you want your funds to be, how long you plan to save, and how you want your investment to perform over time.
Certificate of deposit vs. savings account
When weighing your savings options, understanding how a certificate of deposit differs from traditional savings accounts could make your decision easier. While savings accounts let you access your money anytime, a CD requires you to leave your deposit untouched for a set term. Here is how the two compare:
Feature | Certificate of deposit | Savings account |
Liquidity | Funds locked until maturity | Withdraw anytime up to institution limits (e.g., some banks may impose a limit of six withdrawals per month) |
Interest rate | Fixed, often higher rates | Variable, often lower rates |
Insurance | Typically FDIC/NCUA insured | Typically FDIC/NCUA insured |
Early withdrawal | Penalty applies (except for no-penalty CD) | No penalty |
Often used for | Fixed-term goals | Emergency or flexible savings |
Benefits and drawbacks of a CD
When deciding if a certificate of deposit is the right account type for you, you may want to consider the pros and cons. Understanding the potential rewards and drawbacks, as well as reviewing your saving habits, risk comfort, and cash flow needs, could help you decide whether a CD investment aligns with your overall financial goals.
Pros of CDs
- Fixed interest may offer stable returns throughout the entire term. This kind of predictability might help support broader financial planning, especially if you're aiming to reach specific savings goals without tracking the market daily.
Higher fixed APY compared to standard savings accounts or money market options. This may make CDs appealing if you're looking for high-yield potential while keeping your funds away from market swings.
- Avoid spending temptations due to early withdrawal fees. Penalty fees can encourage you to leave your funds untouched, promoting consistent savings habits.
Cons of CDs
- Early withdrawal penalties may cost you several months of interest if you need access to your money before the end of the agreed-upon term; an early withdrawal could come with a penalty.
Fixed interest rates could cause you to potentially miss out on higher rates if the market shifts upward during your term, since your interest rate is locked in when you open the account. This could leave your CD earning less than newer products available at that time.
- Limited liquidity can mean that CDs are generally not suited for situations that require quick access to funds. Because your money is tied up during the full term, they may not be the best fit if you’re looking for high liquidity or need flexibility for unexpected expenses.
Is a CD right for you?
If you don’t need to tap into your funds for a while, a certificate of deposit could help keep your savings on track for specific goals like paying for college or a down payment on a house. Since your money stays put until maturity, interest builds consistently without interruption.
CDs might also make sense during uncertain markets, as locking in a fixed rate now helps avoid the risk of declining returns later. That predictable APY means you’ll know what to expect from the start, which may support a more stable financial plan. If short-term access isn’t crucial and your goals are clearly defined, placing your funds in a CD could offer a structured, low-maintenance way to grow your savings over time.
Choosing the right CD for your savings goals
To make the most of your savings, picking the right CD fit for your needs may require looking at a few key trade-offs. Factors impacting your decision may include:
Term length
APY
Early withdrawal fees
Minimum deposit amounts
Liquidity needs
While longer terms might offer a higher rate, they also keep your money locked until maturity, which may not work if you need flexibility.
Your current financial situation may also play a role. If you’re planning for short-term savings or may need quicker access to your funds, a shorter term could be more practical. On the other hand, if you're comfortable setting aside your money, a longer commitment might lead to better interest rates and help support a longer-term investment approach.
One way to balance access and returns could be through CD laddering. This method involves opening multiple CDs with staggered maturity dates. By doing so, a portion of your funds becomes available at regular intervals, while the rest stays invested in longer-term CDs that may offer stronger rates. It’s a flexible way to manage your savings without giving up long-term earning potential.
Open a CD account through Raisin
If you're looking for a more streamlined way to manage CD investments online, Raisin may offer a convenient starting point. From a single dashboard, you can explore a wide range of options from U.S.-based banks and credit unions — all with one login. Whether you're starting small or adding to an existing investment mix, CDs available through Raisin begin at just $1, allowing greater flexibility in how you save.
Everything is handled digitally, so there’s no need for paperwork or branch visits. Once logged in, you can monitor your balances, maturity timelines, and earned interest, all from one centralized place designed to support smarter financial decisions. Explore account types, compare interest rates, and start maximizing your savings potential today!
FAQs on certificate of deposit accounts
Is a CD account better than a savings account?
This depends on your priorities. CDs usually offer higher fixed rates than savings accounts but require you to lock in your money for a set term. Savings accounts, in contrast, provide more flexibility for withdrawals but often at lower rates.
How is CD interest taxed?
Interest earned on CDs is treated as taxable income in the year it’s earned, even if you don’t withdraw it. Your bank or credit union will typically issue a 1099-INT form for tax reporting.
Can I open a CD account online?
Yes. Many banks, credit unions, and online platforms like Raisin allow you to open, manage, and compare CD accounts digitally, giving you easy access to the best available rates.
The above article is intended to provide generalized financial information designed to educate a broad segment of the public; it does not give personalized tax, investment, legal, or other business and professional advice. Before taking any action, you should always seek the assistance of a professional who knows your particular situation for advice on taxes, your investments, the law, or any other business and professional matters that affect you and/or your business.
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The Raisin name and logo are trademarks of Raisin SE. All other trademarks, logos, marks, and brand names are the property of their respective owners.
*APY means Annual Percentage Yield. APY is accurate as of May 20, 2026. Interest rate and APY may change after initial deposit depending on the terms of the specific product selected. Minimum opening deposit is $1.00.
Raisin is not an FDIC-insured bank, and FDIC deposit insurance only covers the failure of an insured bank.
Raisin is not an NCUA-insured credit union. NCUA deposit insurance only covers the failure of an insured credit union.
Raisin does not hold any customer funds. Customer funds are held in various custodial deposit accounts. Each customer authorizes the Custodial Bank to hold the customer’s funds in such accounts, in a custodial capacity, in order to effectuate the customer’s deposits to and withdrawals from the various bank and credit union products that the customer requests through Raisin.com. The Custodial Bank does not establish the terms of the bank or credit union products and provides no advice to customers about bank or credit union products offered by the applicable bank or credit union through Raisin.com. Each customer also authorizes the Service Bank to move funds among the various banks and credit unions at the customer’s request. First International Bank & Trust (FIBT), Member FDIC, is the Service Bank. Bell Bank and Starion Bank, each Member FDIC, are the Custodial Banks.
†Based on $250,000 in FDIC or NCUA insurance coverage per insurable category of ownership at each partner bank or credit union on the Raisin platform (each a "Product Bank"), when aggregated with all other deposits held by you at such Product Bank and in the same insurable category. Deposits made through Raisin will be eligible to receive deposit insurance from the FDIC or the NCUA (each a "Deposit Insurer") in accordance with and up to the maximum amount permitted by law at each Product Bank. Raisin is not a bank or credit union and does not hold any customer funds. Funds are held at FDIC-insured banks and NCUA-insured credit unions. Deposit insurance covers the failure of an insured bank or credit union. Certain conditions must be satisfied for pass through deposit insurance coverage to apply. Customers may choose to deposit funds with identically registered accounts at different Product Banks on the Raisin platform to be eligible for Deposit Insurer coverage up to $10 million for individual accounts and $20 million for joint accounts when at least 40 Product Banks are utilized. Please be aware, however, that any deposits you have at a Product Bank, whether through the Raisin platform or outside the Raisin platform, that you may hold in the same capacity (such as in an individual capacity or joint capacity) count toward the applicable Deposit Insurer's deposit insurance maximum amount, and any such amounts that you hold in the same capacity at a Product Bank that exceed the maximum insurance coverage by the applicable Deposit Insurer will not be insured. For more information on FDIC deposit insurance, please see here. For more information on the NCUA share insurance fund, please see here. You are solely responsible for monitoring the amount of funds you have on deposit at each a Product Bank, whether through the Raisin platform or outside the Raisin platform, to confirm that the deposits you hold in the same capacity at each Product Bank do not exceed the maximum deposit insurance coverage provided by the applicable Deposit Insurer.