A money market account is a hybrid between a savings account and a checking account
A money market account (MMA) is a deposit account at a bank or credit union that combines features of both savings and checking accounts. You earn interest on your balance—usually higher than a regular savings account—but you also get limited check-writing or debit card access. The tradeoff is that the bank restricts how many withdrawals you can make each month, and the interest rate changes based on market conditions rather than staying fixed.
Money market accounts are FDIC-insured at banks and NCUA-insured at credit unions, meaning your deposits up to $250,000 are protected if the institution fails. This makes them safer than money market mutual funds, which are not insured and fluctuate with market performance.
The account sits in the middle ground: safer and more liquid than a certificate of deposit (CD), but with lower interest rates and withdrawal limits compared to a regular savings account. Banks use the money you deposit to invest in short-term, low-risk securities—hence the name "money market"—and pass some of the earnings back to you as interest.
Key Takeaways
- Money market accounts pay higher interest than savings accounts but restrict how many times you can withdraw money each month.
- You typically get check-writing or debit card access, making them more flexible than savings accounts but less flexible than checking accounts.
- Interest rates on money market accounts change with market conditions and are not may provide to stay the same.
- Deposits are insured up to $250,000 at banks (FDIC) and credit unions (NCUA), protecting your principal if the institution fails.
- Exceeding withdrawal limits can result in fees, account closure, or conversion to a regular savings account.
How the withdrawal limits work in practice
Federal rules once capped withdrawals at six per month, but that limit was suspended in 2020. However, individual banks and credit unions still set their own limits—typically three to six withdrawals per month—and enforce them through fees or account restrictions. Some institutions charge $25 to $35 per excess withdrawal; others may close your account or convert it to a savings account if you repeatedly exceed the limit.
What counts as a withdrawal varies by institution. Typically, debit card purchases and ATM withdrawals count, but transfers to your own accounts at the same bank may not. Checks written against the account almost always count. Before opening an account, ask the bank exactly what transactions trigger the withdrawal limit and what happens if you go over.
The withdrawal limit exists because banks rely on the money staying in the account to fund their short-term investments. If too many customers withdraw at once, the bank has to liquidate those investments quickly, which costs money and reduces the interest they can pay.
Interest rates and how they change
Money market accounts pay variable interest rates, meaning the rate your bank offers today may be different next month. Banks set these rates based on the federal funds rate—the interest rate the Federal Reserve charges banks to lend to each other. When the Fed raises rates, banks typically raise money market rates within weeks. When the Fed cuts rates, money market rates fall.
The rate you receive also depends on your balance. Many banks offer tiered rates: a lower rate on balances under $10,000 and a higher rate on balances above that threshold. Some banks offer promotional rates for new accounts, which are higher for a limited time (usually three to six months) and then drop to the standard rate.
Because rates change frequently, a money market account that pays 4.5% today might pay 3.8% in three months if the Fed cuts rates. This unpredictability makes money market accounts better for money you plan to keep in the account for at least a year, rather than money you need to move around constantly.
Money market accounts versus savings accounts and CDs
| Feature | Money Market Account | Savings Account | Certificate of Deposit (CD) |
|---|---|---|---|
| Interest rate | Variable, typically higher | Variable, typically lower | Fixed for the term |
| Withdrawal limit | Usually 3–6 per month | Usually 6 per month or unlimited | None until maturity; early withdrawal penalty applies |
| Check writing or debit card | Yes, limited | No | No |
| FDIC/NCUA insured | Yes, up to $250,000 | Yes, up to $250,000 | Yes, up to $250,000 |
| Best for | Money you want to earn interest on but may need access to | Emergency funds or short-term savings | Money you won't need for a set period |
A savings account is simpler: no withdrawal limits (or very high ones), lower interest rates, and no check-writing access. Use a savings account if you want flexibility and don't mind earning less interest. A CD locks your money away for a set term—three months, one year, five years—in exchange for a may provide rate that's usually higher than a money market account. Use a CD if you know you won't need the money and want certainty about your return.
Fees and minimum balance requirements
Money market accounts often come with a minimum balance requirement—commonly $2,500 to $10,000—to open the account or to earn the advertised interest rate. If your balance drops below that minimum, the bank may charge a monthly fee (typically $10 to $25) or drop your interest rate to a lower tier. Some banks waive the minimum if you set up automatic deposits or maintain a linked checking account.
Beyond the minimum, watch for excess withdrawal fees ($25 to $35 per transaction over the limit), monthly maintenance fees, and inactivity fees if you don't use the account for a set period. Online banks and credit unions typically charge fewer fees than brick-and-mortar banks because their overhead is lower.
Read the account disclosure document before opening an account. It lists every fee, the minimum balance, the withdrawal limit, and how interest is calculated. If the document is unclear, call the bank and ask for specifics in writing.
When a money market account makes sense for your situation
A money market account works well if you have $5,000 to $50,000 sitting in a regular savings account earning almost nothing, and you don't plan to touch it for at least six months. The higher interest rate will earn you real money compared to a savings account, and the withdrawal limit won't matter if you're not using the account frequently.
It also makes sense as a bridge between your emergency fund and longer-term savings. Keep three to six months of expenses in a regular savings account for true emergencies, then put money you're saving for a goal six months or more away in a money market account to earn more interest.
A money market account does not make sense if you need frequent access to the money, if you have less than $2,500 to deposit, or if you're saving for a goal more than two or three years away (in which case a CD or investment account would serve you better). It also doesn't make sense if you're comparing it to a high-yield savings account at an online bank—many online savings accounts now pay rates equal to or higher than money market accounts with no withdrawal limits.
How to open a money market account
Start by comparing rates and fees across banks and credit unions in your area and online. Websites like Bankrate, DepositAccounts, and NerdWallet let you filter by interest rate, minimum balance, and fees. Once you've narrowed your choices, visit the bank's website or call to confirm the current rate, minimum balance, and withdrawal limit—these change frequently.
To open an account, you'll need a government-issued ID, your Social Security number, and proof of address (a recent utility bill or bank statement). Most banks let you open online in 10 to 15 minutes. You'll fund the account by transferring money from another bank account or depositing a check. The transfer usually takes one to three business days to clear.
After opening, set a calendar reminder to review the account every six months. Check whether the interest rate has dropped significantly compared to other banks, and whether you're still meeting the minimum balance. If rates have fallen and you can get a better deal elsewhere, moving the money takes about a week and is worth doing.
Frequently Asked Questions
Can I lose money in a money market account?
No. Your principal is protected by FDIC or NCUA insurance up to $250,000. The interest rate changes, but your balance cannot go down unless you withdraw money or the bank charges fees that exceed your interest earnings.
What happens if I withdraw more than the limit?
The bank charges a fee per excess withdrawal, typically $25 to $35. If you repeatedly exceed the limit, the bank may close the account or convert it to a regular savings account with no interest rate advantage. Check your account agreement for the specific consequences.
Is a money market account the same as a money market fund?
No. A money market account is a bank deposit account insured by the FDIC or NCUA. A money market fund is an investment product that is not insured and fluctuates in value. Money market accounts are safer but pay lower returns.
Why would I choose a money market account over a high-yield savings account?
Many people don't—high-yield savings accounts at online banks now often pay equal or higher interest with no withdrawal limits. The main reason to choose a money market account is if you want check-writing access or prefer banking at a local institution that doesn't offer high-yield savings.
Do I pay taxes on money market account interest?
Yes. Interest earned on a money market account is taxable income. The bank will send you a 1099-INT form at the end of the year if you earned $10 or more in interest, and you'll report that income on your tax return.