Cash in a money market account is your actual dollars sitting in a bank or credit union account, not invested in stocks or bonds
When you deposit money into a money market account, that cash stays as cash — it does not automatically buy you shares of anything or lock into a bond. The money sits in an account at a financial institution, and you can withdraw it. The account earns interest, which is where the "market" part comes in: the interest rate the bank pays you is tied to short-term interest rates in the broader money market, so it moves up and down with those rates.
This is different from a money market fund, which is an investment product that buys short-term debt instruments. A money market account is a savings account with a higher interest rate than a regular savings account, but the same basic structure: your money is there, it earns interest, and you can access it.
Key Takeaways
- Money market account cash is held as cash at a bank or credit union, not converted into investments or securities.
- The interest rate on money market accounts moves with short-term interest rates in the economy, so it changes periodically rather than staying fixed.
- Your cash in a money market account is insured by the FDIC (at banks) or NCUA (at credit unions) up to $250,000 per account owner per institution.
- You can usually write checks or make transfers from a money market account, though some institutions limit the number of withdrawals per month.
- Money market accounts typically require a higher minimum deposit than regular savings accounts, often $2,500 to $25,000 depending on the bank.
How the interest rate on your cash is set
Banks and credit unions set their money market account rates based on the federal funds rate, which is the interest rate the Federal Reserve targets for overnight lending between banks. When the Fed raises rates, banks typically raise the rates they pay on money market accounts within weeks or months. When the Fed cuts rates, money market rates fall.
This is why money market account rates change so often — sometimes monthly. A regular savings account rate is often fixed by the bank and changes only when the bank decides to change it. A money market rate is pegged to market conditions, so it moves automatically.
The actual rate you receive depends on the bank or credit union and the size of your deposit. Larger balances sometimes earn higher rates. Online banks and credit unions often pay higher rates than brick-and-mortar banks because they have lower overhead costs.
FDIC and NCUA insurance on your cash
Cash in a money market account at a bank is insured by the Federal Deposit Insurance Corporation (FDIC) up to $250,000 per depositor per bank. If the bank fails, the FDIC covers your balance up to that limit. Cash in a money market account at a credit union is insured by the National Credit Union Administration (NCUA) up to the same $250,000 limit.
This insurance applies to the cash itself, not to any investment returns. If you have $100,000 in a money market account and the bank fails, you get your $100,000 back plus any interest that accrued before the failure. The insurance does not protect you against interest rate risk — if rates fall and your rate drops, that is not covered.
If you have multiple accounts at the same bank, the $250,000 limit applies across all of them combined, unless they are in different ownership categories (for example, an individual account and a joint account are insured separately).
Access to your cash and withdrawal limits
You can access cash in a money market account, but the rules vary by institution. Many money market accounts come with a debit card or checkbook, so you can withdraw money the same way you would from a checking account. Some banks allow unlimited withdrawals, while others limit you to a certain number per month — commonly six.
Federal rules used to cap withdrawals at six per month, but that rule was suspended in 2020 and has not been reinstated. However, individual banks can still impose their own limits, so check your account agreement. If you exceed the limit, the bank may charge a fee or convert your account to a different type.
Online transfers and ACH payments (moving money to another bank account) typically do not count against withdrawal limits, but check with your specific institution. Withdrawals at the ATM or by debit card usually do count.
Minimum deposits and account fees
Money market accounts usually require a higher opening deposit than regular savings accounts. Minimums range from $2,500 to $25,000 depending on the bank. Some online banks have lower minimums, sometimes $1,000 or less. A few banks have no minimum, but they may pay a lower interest rate.
Monthly maintenance fees are common on money market accounts, typically $10 to $25 per month. Some banks waive the fee if you maintain a minimum balance (often $2,500 to $10,000) or set up direct deposit. Online banks are more likely to have no monthly fee.
If your balance falls below the minimum, the bank may charge a fee, convert your account to a savings account, or close the account. Read the fee schedule before opening an account so you know what triggers charges.
When money market accounts make sense for your cash
A money market account works well if you have a lump sum of cash you want to keep safe and accessible, but you do not need to touch it regularly. The higher interest rate than a savings account means your money grows faster, and the FDIC insurance means it is protected. The trade-off is the higher minimum deposit and sometimes the monthly fee.
Money market accounts are less useful if you need to make frequent withdrawals, because some banks limit those. They are also less useful if you want a fixed rate, because the rate will change as market conditions change. If you want to lock in a rate, a certificate of deposit (CD) is a better choice.
If you have more than $250,000 in cash, you will need multiple accounts at different banks to keep all of it insured. Some people use money market accounts as a holding place while they decide where to invest larger sums, or while they wait for CD rates to rise.
Money market accounts versus money market funds
The name is confusing because a money market account and a money market fund are different products. A money market account is a bank account that holds cash. A money market fund is a mutual fund that invests in short-term debt like Treasury bills and commercial paper. The fund's value can fluctuate slightly, and it is not FDIC insured.
Money market funds are offered through brokerage accounts and investment firms, not banks. They typically have lower minimums than money market accounts and sometimes no minimum at all. The interest rate (called a yield) is usually higher than a money market account rate, but the cash is not insured.
If you want your cash to stay as cash and be insured, use a money market account at a bank or credit union. If you are comfortable with a small amount of risk and want a slightly higher return, a money market fund is an option, but it is an investment product, not a savings account.
Frequently Asked Questions
Can I lose money in a money market account?
No. Your cash balance cannot go down because of market movements. The only way your balance decreases is if you withdraw money or the bank charges fees. The interest rate can fall, which means you earn less, but your principal is safe and insured.
Is the interest I earn on a money market account taxable?
Yes. Interest earned on a money market account is ordinary income and is taxed at your regular income tax rate. The bank will send you a 1099-INT form at the end of the year showing the interest you earned, and you report it on your tax return.
What happens to my money market account if the bank fails?
The FDIC takes over and pays you up to $250,000 of your balance. If your balance is higher than $250,000, the amount over the limit is at risk. This is rare — the FDIC has not had a major bank failure since 2008 — but it is why the insurance limit exists.
Can I use a money market account as an emergency fund?
Yes, if you can meet the minimum deposit and are comfortable with the withdrawal limits. The higher interest rate means your emergency fund grows faster than in a regular savings account. Just make sure you can access the money quickly if you need it, and check whether your bank limits the number of withdrawals.
Why would I choose a money market account over a CD?
A money market account gives you access to your cash whenever you need it, while a CD locks your money for a set term (three months to five years). If you might need the money before the CD matures, a money market account is more flexible. The trade-off is that a CD usually pays a higher rate because you are committing to leave the money there.