What a money market account does

A money market account is a savings account that pays you interest, usually higher than a regular savings account, but with a catch: you can only withdraw money a limited number of times per month. The bank holds your money and invests it in short-term, low-risk loans to other banks and governments. In return, they pay you a portion of what they earn. You get access to your cash when you need it—unlike a certificate of deposit, where your money is locked away—but the bank limits how often you can take it out.

The name comes from the money market, which is where banks and large institutions lend to each other for short periods. Your account is not directly in that market, but the bank uses money market investments to decide what interest rate to offer you. The higher the rate the bank can earn, the more they can afford to pay you.

Key Takeaways

  • Money market accounts pay higher interest than regular savings accounts because the bank invests your money in short-term loans and securities.
  • Federal rules limit you to six withdrawals per month, though some banks allow more if you withdraw in person or by mail.
  • Your money is insured up to $250,000 per account at banks that carry FDIC insurance, so your principal is protected even if the bank fails.
  • Interest rates on money market accounts change with the Federal Reserve's rate decisions, so your earnings go up and down over time.
  • Minimum balance requirements and monthly fees vary by bank, so comparing accounts before opening one saves you money.

How interest rates and earnings work

The interest rate on a money market account is not fixed. It moves up and down based on what the Federal Reserve does with its benchmark interest rate. When the Fed raises rates, banks can earn more on their short-term investments, so they raise the rates they pay to depositors. When the Fed cuts rates, the opposite happens. This means your earnings can change month to month, sometimes significantly.

Banks also set their own rates within that environment. A bank with a lot of deposits may offer a lower rate because it does not need to attract more customers. A newer bank or one trying to grow may offer a higher rate to pull in deposits. The rate you see advertised is called the annual percentage yield, or APY. This is the total return you would earn in a year if the rate stayed the same and you did not withdraw any money.

Interest is usually credited to your account monthly. If you have $10,000 in an account paying 4.5% APY, you earn roughly $37.50 that month (the exact amount depends on the number of days in the month). That interest gets added to your balance, and next month you earn interest on the larger amount—this is called compounding.

Withdrawal limits and how they work

Federal rules allow you to make up to six withdrawals per month from a money market account. A withdrawal includes transfers to another account, checks you write, and debit card transactions. It does not include ATM withdrawals at your own bank or deposits. If you go over six, the bank can charge you a fee, usually $10 to $25 per excess withdrawal, or close your account.

Many banks offer ways around this limit. You can withdraw in person at a branch without counting against the six. You can also request a check by mail, which does not count. Some banks allow unlimited ATM withdrawals at their own machines. A few online banks have removed the limit entirely, though they may pay slightly lower rates in exchange. Before opening an account, check what counts as a withdrawal and what does not.

The six-withdrawal limit exists because the Federal Reserve designed it to keep money market accounts functioning as savings vehicles, not checking accounts. The rule was relaxed during the pandemic but remains in effect. If you need to withdraw money frequently, a regular savings account or checking account is a better fit, even if the interest rate is lower.

Minimum balances and fees

Most money market accounts require a minimum opening deposit, usually between $500 and $2,500. Some banks waive this if you set up automatic deposits or link the account to an existing account with them. A few online banks have no minimum at all.

Many accounts also require you to maintain a minimum balance—often the same amount as the opening deposit—to earn the advertised interest rate or avoid a monthly fee. If your balance drops below that threshold, the bank may pay you a lower rate or charge you $5 to $15 per month. Read the account agreement carefully, because the fee structure varies widely. One bank might charge a fee if you fall below $1,000; another might have no minimum balance requirement but charge a fee if you make more than six withdrawals.

Some banks charge an inactivity fee if you do not make any deposits or withdrawals for a set period, usually six months to a year. This is less common but worth checking. Online banks typically have lower or no fees because they have fewer physical branches to maintain.

FDIC insurance and what it protects

Money in a money market account at an FDIC-insured bank is protected up to $250,000 per account owner, per bank. This means if the bank fails, the federal government guarantees you will get your money back up to that limit. The insurance covers the principal you deposited plus any interest you earned.

The $250,000 limit applies per account owner at each bank. If you have a money market account in your name and a joint account with your spouse at the same bank, each is insured separately up to $250,000. If you have accounts at two different banks, each bank's accounts are insured separately. This matters if you have a large amount of money to save—you may need to split it across multiple banks or account types to stay fully covered.

Not all banks carry FDIC insurance. Credit unions carry similar insurance through the NCUA (National Credit Union Administration) with the same $250,000 limit. Online banks that are FDIC-insured offer the same protection as brick-and-mortar banks. You can check whether a bank is FDIC-insured by searching its name on the FDIC's website.

Money market accounts versus other savings options

A money market account sits between a regular savings account and a certificate of deposit in terms of how it works. A regular savings account has no withdrawal limits and usually pays lower interest. A CD locks your money away for a set term—three months, one year, five years—and pays a fixed rate. If you withdraw early, you pay a penalty. A money market account gives you some of the higher interest of a CD with more flexibility, but with withdrawal limits.

If you want to save money and earn interest but think you might need to access it within a few months, a money market account is worth considering. If you know you will not touch the money for a year or more, a CD usually pays more. If you need to withdraw frequently, a regular savings account is simpler, even if it pays less.

Money market accounts are also different from money market funds, which are investment products sold by brokerages. A money market fund is not FDIC-insured and can lose value. A money market account at a bank is a deposit product, not an investment, and your principal is protected.

How to open and manage a money market account

Opening a money market account takes about 10 minutes online or in person. You will need a government-issued ID, your Social Security number, and an initial deposit. The bank will verify your identity and run a background check through ChexSystems, a database that tracks banking history. If you have unpaid overdrafts or fraud flags at other banks, you may be denied.

Once the account is open, you manage it through the bank's website or app. You can see your balance, interest earned, and withdrawal count. You can set up automatic transfers to move money in or out on a schedule. Most banks let you link a money market account to a checking account at the same bank for easy transfers.

Keep track of your withdrawal count if the bank limits you to six per month. Some banks send a warning when you are close to the limit; others do not. If you exceed the limit, the bank will charge a fee and may close the account if it happens repeatedly. If you find yourself hitting the limit regularly, switch to a checking account or a money market account with no withdrawal limits.

Frequently Asked Questions

Can I use a debit card to withdraw from a money market account?

Most banks do not issue debit cards for money market accounts because debit card transactions count toward the six-withdrawal limit. Some online banks offer debit cards but count each transaction. If you want debit card access, a regular checking account is a better choice.

What happens if I exceed the six-withdrawal limit?

The bank charges a fee, usually $10 to $25 per excess withdrawal. If you repeatedly exceed the limit, the bank may convert your account to a checking account, lower your interest rate, or close the account. Check your account agreement for the specific policy.

Is a money market account safe if the bank fails?

Yes, if the bank is FDIC-insured. Your money is protected up to $250,000. You can verify FDIC insurance by searching the bank's name on the FDIC website. Credit unions offer the same protection through the NCUA.

Why do money market account rates change so often?

Rates follow the Federal Reserve's benchmark rate, which changes based on economic conditions. When the Fed raises rates, banks can earn more on short-term investments and pass some of that to depositors. When the Fed cuts rates, banks lower what they pay you.

Can I withdraw all my money at once from a money market account?

Yes, you can withdraw your entire balance in one transaction. That single withdrawal counts as one of your six allowed per month. If you need the money in cash, you may need to visit a branch or request a check by mail.