A money market account is a hybrid between a savings account and a checking account that pays interest on your balance
Money market accounts let you earn interest on money you deposit, unlike most regular checking accounts. You get a debit card and check-writing ability like a checking account, but your money grows at a rate closer to what you'd see in a savings account. The tradeoff is that money market accounts usually require a higher minimum balance to open and maintain, and they limit how many withdrawals you can make each month.
Banks and credit unions offer money market accounts. The interest rate varies by institution and changes based on what the Federal Reserve does with its benchmark rate. Right now, rates range widely — some accounts pay under 0.01% annual percentage yield (APY), while others at online banks pay 4% to 5% APY. The difference between institutions matters far more than the account type itself.
Key Takeaways
- Money market accounts earn interest on your balance, whereas standard checking accounts typically pay zero interest or a fraction of a percent.
- Most money market accounts require a minimum opening deposit between $2,500 and $25,000, depending on the bank.
- Federal rules limit you to six withdrawals per month from a money market account, though this rule is enforced inconsistently across banks.
- You can write checks and use a debit card on a money market account, making it more flexible than a pure savings account.
- Online banks usually offer higher interest rates on money market accounts than brick-and-mortar banks do.
How interest rates and minimum balances work
The interest rate on a money market account depends on two things: what the bank decides to offer and what the Federal Reserve's current rate environment is. When the Fed raises its benchmark rate, banks typically raise their money market rates within weeks or months. When the Fed cuts rates, banks cut their money market rates just as quickly. You won't see the same rate at every bank — online banks tend to pay more because they have lower overhead costs.
Minimum balance requirements are set by each bank and can range from $0 at some online institutions to $25,000 or more at large national banks. If your balance drops below the minimum, the bank may charge a monthly fee, lower your interest rate, or convert the account to a regular checking account. Some banks waive the minimum if you set up automatic deposits or maintain a linked savings account with them.
Interest compounds daily or monthly depending on the bank's terms. Daily compounding means you earn interest on your interest more frequently, which adds up over time. The difference is small on small balances but becomes meaningful if you're holding several thousand dollars.
Withdrawal limits and how they affect you
Federal Regulation D historically capped withdrawals from money market accounts at six per month. This rule was suspended during the pandemic but has since been reinstated, though enforcement varies. Some banks enforce it strictly and charge a fee if you exceed the limit. Others ignore it entirely. Before opening an account, ask the bank directly what their withdrawal policy is — don't assume the federal rule applies uniformly.
The limit applies to transfers and withdrawals, but not to debit card purchases or ATM withdrawals at the bank's own machines. This means you can spend money freely with your debit card but face restrictions if you're moving money out to another account or making large cash withdrawals. If you need frequent access to your money, a regular checking account is more practical.
Money market accounts versus regular checking accounts
A regular checking account is designed for frequent transactions. You get unlimited deposits and withdrawals, no minimum balance requirement at many banks, and a debit card and checks. The downside is that most checking accounts pay no interest at all, or interest so low it rounds to zero. You're essentially paying the bank to hold your money.
A money market account is designed for money you want to keep relatively still while earning a return. You get some transaction flexibility through the debit card and check-writing, but not unlimited access. The payoff is that your money actually grows. If you have $10,000 sitting in a checking account earning 0% and move it to a money market account earning 4.5%, you'll earn roughly $450 per year with no additional work.
The choice depends on how you use the account. If you're depositing your paycheck and paying bills from the same account, use checking. If you have a chunk of money you want to earn interest on while keeping it accessible, a money market account makes sense.
Where to find money market accounts and current rates
Every major bank and credit union offers money market accounts. Online banks like Marcus, Ally, and American Express Personal Savings typically offer the highest rates because they don't maintain physical branches. Credit unions sometimes offer competitive rates to their members, especially if you maintain other accounts with them.
Interest rates change frequently, so comparing rates across institutions matters. Sites like Bankrate, DepositAccounts, and the Federal Reserve's own rate tracker show current rates at different banks. Rates can differ by 1% or more between the highest-paying and lowest-paying institutions, which translates to hundreds of dollars per year on a $10,000 balance.
When you're comparing, look at the APY (annual percentage yield), not just the interest rate. APY includes the effect of compounding and shows you the true return you'll earn over a year. Also check whether the rate is promotional — some banks offer high rates for the first few months, then drop them significantly.
FDIC insurance and safety
Money market accounts at banks are covered by FDIC insurance up to $250,000 per depositor per institution. This means if the bank fails, your money is protected up to that limit. Credit union accounts are covered by NCUA insurance with the same $250,000 limit. This protection applies regardless of the interest rate the account pays.
If you have more than $250,000 to deposit, you can open accounts at multiple banks to stay within the insurance limit at each one. Some people split large balances across several institutions specifically to maximize FDIC coverage.
When a money market account makes sense
A money market account works well if you have $5,000 or more sitting aside that you want to earn interest on, but you might need to access it within a few months. It's better than a savings account because you get check-writing and debit card access. It's better than a checking account because your money actually earns something.
It doesn't make sense if you have less than the minimum balance the bank requires, or if you need to move money in and out constantly. It also doesn't make sense if you're comparing it to a high-yield savings account at the same bank — many banks now pay the same rate on both, so you might as well use the savings account and avoid the withdrawal limits.
Frequently Asked Questions
Do I need a minimum balance to open a money market account?
Most banks require between $2,500 and $25,000 to open a money market account, though some online banks have no minimum. Check the specific bank's requirements before you apply. If you fall below the minimum after opening, you may face monthly fees or a lower interest rate.
Can I use my debit card on a money market account?
Yes, most money market accounts come with a debit card and allow unlimited debit card purchases. The federal withdrawal limit applies to transfers and cash withdrawals, not to debit card transactions. This means you can spend freely but face restrictions if you're moving money to another account.
What happens if I exceed the six withdrawal limit?
Enforcement varies by bank. Some charge a fee per excess withdrawal, others convert your account to a checking account, and some ignore the limit entirely. Contact your bank to ask what their specific policy is — don't assume the federal rule applies.
Is my money safe in a money market account?
Yes, if the account is at an FDIC-insured bank or NCUA-insured credit union. Your deposits are protected up to $250,000 per institution. The interest rate has no effect on this protection.
Should I move my checking account balance to a money market account?
Only if you don't need frequent access to that money. If you're using the account to receive paychecks and pay bills, keep it as checking. If you have extra money you want to earn interest on, a money market account or high-yield savings account is better.