Money market account vs. CD: What’s the difference?
Money market accounts and certificates of deposit (CDs) can both help you earn interest on your savings, but they serve different purposes. Both offer federal deposit insurance when held at an insured institution, subject to coverage limits and may pay higher interest than traditional savings accounts, but they work differently.
A money market account is for money you need to access, and a CD is for money you can set aside until a specific date. If you’re trying to decide whether a CD or a money market account is best for your situation, this guide covers interest rates, access restrictions, and fees to help you compare your options.
Money market account vs. CD at a Glance
A key difference between money market accounts and CDs is what happens after depositing funds. A money market deposit account (MMDA) typically lets you access funds and make additional deposits. That’s not usually the case with most CDs.
Here’s how money market accounts and CDs compare.
| Feature | Money market account | CD |
|---|---|---|
| Interest rates | Usually variable; may be tiered by balance | Usually fixed for the CD term |
| Access to money | Withdrawals and transfers generally available; checks or debit cards may be offered | Funds generally held until maturity; early withdrawal penalties often apply |
| Additional deposits | Typically permitted anytime | Usually limited to the initial deposit |
| Minimum deposit | Varies; higher balances may be required for certain rates | Varies by bank and CD term |
| Fees | Monthly maintenance fees may apply | Typically no monthly fees; early withdrawal penalties may apply |
| Deposit insurance | Federal Deposit Insurance Corp. (FDIC) or National Credit Union Administration (NCUA) insured, within applicable limits | FDIC or NCUA insured, within applicable limits |
| Best for | Emergency funds, flexible savings and accessible cash reserves | Savings earmarked for specific dates and locking in an interest rate |
How a money market account works
A money market account is an interest-bearing deposit account available at many banks and credit unions. It earns interest like a savings account but may also offer check-writing privileges or debit card access.
This makes the MMDA an attractive option for people with sizable balances who still want access to their funds. For instance, if you have a large upcoming expense like a home remodel, you may want to use a money market account to earn interest while keeping the money accessible.
Unlike a CD, money market accounts usually pay a variable interest rate. Larger balances may earn more interest, but surpassing a balance threshold doesn’t always guarantee a higher rate. Each financial institution determines its rate structure.
It’s not uncommon for MMDAs to have monthly or quarterly withdrawal limits. Some institutions also charge maintenance fees that can affect your balance. Money market accounts are FDIC-insured or NCUA-insured, up to applicable limits, depending on whether the account is held at a bank or credit union.
Money market account vs. money market fund: Key differences
Money market accounts and money market funds sound similar, but they’re different financial products.
A money market account is a deposit product offered by banks and credit unions. A money market fund is a type of mutual fund offered by brokerages that typically invests in short-term debt securities.
Unlike money market accounts, money market funds aren’t federally insured deposits. Eligible money market fund shares held at a brokerage that’s a member of the Securities Investor Protection Corp. (SIPC) may be protected if the brokerage fails and customer assets are missing. SIPC coverage is limited to $500,000 per customer, including a $250,000 limit for cash claims. Money market fund shares are securities, not cash claims, and SIPC doesn’t protect against investment losses.
If you’re seeking federally insured savings, a money market account is a better choice than a money market fund.
How a CD works
A CD is a savings product offered by banks and credit unions that holds your deposit for a specified term. CD terms range from several months up to several years. In exchange, you generally receive a fixed interest rate on the deposit. This predictability appeals to savers who want to know what they’ll earn or are saving for a large future expense.
CDs have one considerable drawback, though. You sacrifice liquidity. If you need to withdraw funds before maturity, you may be able to do so, but you will likely incur an early withdrawal penalty. The penalty is frequently expressed as days or months of interest and is set by the institution. You can learn what the institution charges by reviewing its Truth-in-Savings disclosures.
When a CD matures, you may be able to renew it at the then-current rate, withdraw the funds, or transfer them to a different account. Many CDs automatically renew unless you provide other instructions. If your CD has a grace period, you can typically make changes without an early withdrawal penalty during that window. The length of the grace period varies by institution.
Not all CDs operate the same. You may also discover no-penalty CDs or brokered CDs. A no-penalty CD gives you access to the deposit under certain conditions, but it often pays less than a traditional CD. Brokered CDs are available through brokerages and carry unique risks, including the potential for a loss if you sell before maturity.
Money market vs. CD interest rates: Variable vs. fixed
One of the clearest differences between CDs and money market accounts is the interest rate. In most cases, a CD pays a fixed rate. You know what the CD pays and can calculate what it will earn over the term. On the other hand, money market accounts tend to pay a variable interest rate.
Neither option is necessarily better. CDs may offer a higher rate, but you sacrifice access. Money market accounts may pay lower rates at times, but you get increased access. Comparing current CD rates is essential to identify the better fit for your situation.
That’s not the only thing to consider. In a falling interest-rate environment, CD rates are locked in, but money market account rates may decline. On the flip side, in a rising interest-rate environment, the CD rate stays locked until maturity, but the money market rate may rise.
Money market rates can also have tiers, allowing you to earn more with a larger balance. If you can’t maintain the minimum balance required to earn the higher rates and the account has fees, it may make sense to research CDs or other banks if you need liquidity.
Using an example is helpful when comparing variable vs. fixed rates. Consider that you have $10,000 to deposit into a 12-month CD or a money market, both with a 4% annual percentage yield (APY). Assuming no withdrawals or fees, the CD would have a $10,400 balance at maturity. However, if the money market account rate falls or you incur fees, you may have less than $10,400 at the end of 12 months. Conversely, if its rates increase, you may end with over $10,400. Ultimately, real results depend on rate changes and your account terms.
Money market account vs. CD: Which should you choose?
When comparing money market accounts and CDs, it helps to ask yourself three questions before deciding which is best for you.
- When will you need the money? If you’re unsure of when you will need the funds, a money market account may be a better fit. If you have a clear date when you need the funds or want to lock in rates, consider a CD.
- Do you need checks or a debit card? Some money market accounts offer check-writing privileges or debit cards. If you need quick access to cash, that can be advantageous. CDs generally don’t offer those features. For people who don’t need check-writing privileges but want liquidity, a high-yield savings account (HYSA) can be a good alternative.
- How much are you depositing? Banks generally limit their best rates on money markets to the largest balance. CDs may also require a minimum deposit to earn the best rates. Comparing the two can help you find the better fit. If you have a smaller balance, a HYSA may be more suitable.
Regardless of which you select, reviewing rates, account minimums, fees, deposit insurance coverage, and account terms is important before making a decision.
How to combine a money market account with a CD ladder
Using a hybrid approach can be a powerful way to maximize interest with money markets and CDs. A money market account helps if you need funds available for unexpected expenses. You can pair that with a CD ladder to spread out maturity dates.
A CD ladder is one way to stagger maturity dates so you don’t lock up all your funds long term. Here’s how a CD ladder works: If you have $60,000 in savings and want to keep $10,000 accessible, you could put $50,000 into five CDs with staggered maturity dates:
- 12-month CD: $10,000
- 24-month CD: $10,000
- 36-month CD: $10,000
- 48-month CD: $10,000
- 60-month CD: $10,000
When each CD matures, you can renew it for another 60 months or use the proceeds. This creates an opportunity to access part of your savings each year after the first 12 months. You could keep the remaining $10,000 in a money market account to manage unexpected expenses. Just make sure to account for FDIC or NCUA coverage, so you don’t exceed the applicable limits with this approach.
Frequently asked questions
Both CDs and money market accounts are eligible for FDIC or NCUA coverage at insured institutions, up to applicable limits. Fees and early withdrawal penalties can cause a loss in either a money market account or a CD. Inflation can also cause both to lose purchasing power.
A money market account is generally better suited for an emergency fund. Money market accounts are typically liquid, providing access to cash for unexpected needs. If you need to withdraw money from a CD, you may incur an early withdrawal penalty.
Yes, interest earned from money market accounts and CDs is generally taxed in the same way. You might incur both federal and state taxes on earnings.
Yes, many banks offer both money market accounts and CDs. It’s important to remember FDIC and NCUA coverage limits, as balances held in the same ownership category at the same insured institution are generally combined when calculating deposit insurance coverage.
