How money market accounts earn and pay you interest

A money market account holds your cash and pays you interest — a percentage of your balance that the bank or credit union adds to your account regularly. The interest rate varies by institution and changes over time based on what the Federal Reserve does with its benchmark rate. When the Fed raises rates, banks typically raise the rates they offer on money market accounts within weeks or months. When the Fed cuts rates, money market account rates fall too.

The bank uses your deposited money to make loans and investments, and pays you a portion of what it earns. The rate you receive depends on how much you have in the account and how competitive that bank wants to be for deposits. Some banks offer higher rates to attract new customers or larger balances; others offer lower rates because they have plenty of deposits already. You can compare current rates across institutions before you open an account — they are published on each bank's website and on comparison sites.

Interest compounds, meaning you earn interest on your interest. If your account earns 4.5% annually and you have $10,000, after one year you will have earned $450. If you leave that $450 in the account, next year you earn interest on $10,450, not just the original $10,000. The more frequently interest compounds — daily, monthly, or quarterly — the more you earn, though the difference is usually small.

Key Takeaways

  • Money market accounts pay interest on your balance, with rates that rise and fall based on Federal Reserve decisions and what each bank offers.
  • You can withdraw money from a money market account, but federal rules limit you to six withdrawals per month, and some banks charge fees if you exceed that limit.
  • Interest compounds regularly (daily, monthly, or quarterly depending on the bank), so you earn returns on your previous earnings as well as your original deposit.
  • Money market accounts are FDIC-insured up to $250,000 per depositor per bank, making them safer than stocks or bonds but offering lower returns.
  • The rate you earn depends on the bank you choose and your account balance, so comparing institutions before opening an account can add hundreds of dollars to your earnings over a year.

Withdrawal limits and how they work in practice

Federal rules cap the number of withdrawals you can make from a money market account at six per month. This rule exists because money market accounts are designed as savings vehicles, not checking accounts. A withdrawal includes any transfer out of the account — to another account at the same bank, to an external account, or as a cash withdrawal at the teller window.

If you exceed six withdrawals in a month, the bank can charge you a fee (often $25 to $35 per excess withdrawal) or close your account. Some banks enforce the limit strictly; others are lenient if you go over once. A few banks have removed the limit entirely, though they may still discourage frequent withdrawals by offering lower rates or requiring higher minimum balances. Before you open an account, ask the bank what happens if you exceed six withdrawals — the answer varies.

Deposits do not count toward the six-withdrawal limit, so you can add money to your account as often as you want. Transfers between your own accounts at the same bank also do not always count, depending on the bank's policy. If you think you will need to move money in and out frequently, a regular savings account or checking account may suit you better than a money market account.

How to access your money when you need it

You can withdraw money from a money market account in several ways. Most banks let you transfer funds online to another account you own at the same bank or at a different institution — this usually takes one to three business days. You can also write checks on some money market accounts, though not all banks offer this feature. If your bank does allow checks, you get a checkbook and can write checks like you would on a checking account, but remember the six-withdrawal limit still applies.

You can visit a branch and withdraw cash from a teller, or use an ATM if your bank offers ATM access on money market accounts (many do not). Some banks let you set up automatic transfers on a schedule — for example, moving $200 to your checking account every two weeks — which counts as one withdrawal per transfer. Read your account agreement or call the bank to confirm which access methods are available on the specific money market account you are considering.

Minimum balance requirements and fees

Most money market accounts require a minimum opening deposit, which ranges from $500 to $25,000 depending on the bank and the specific account tier. Some banks waive the minimum if you set up automatic deposits or maintain a linked checking account. If your balance falls below the minimum, the bank may charge a monthly fee (typically $10 to $25) or close the account.

Beyond the minimum balance fee, money market accounts may charge other fees: excess withdrawal fees (if you go over six withdrawals), overdraft fees (if you write a check and do not have enough funds), or inactivity fees (if you do not use the account for a long time). Some banks charge no fees at all. Online banks tend to have lower or no fees because they have fewer physical branches to maintain. Before opening an account, review the fee schedule on the bank's website or ask a representative to walk you through all possible charges.

Money market accounts versus savings accounts and CDs

A money market account sits between a regular savings account and a certificate of deposit in terms of how you use it. Like a savings account, you can withdraw money whenever you want (up to the six-withdrawal limit). Like a CD, a money market account often pays a higher interest rate than a basic savings account because the bank expects you to keep the money there longer.

The trade-off is access. A CD locks your money away for a set term — three months, one year, five years — and penalizes you if you withdraw early. A money market account lets you access your cash, but the six-withdrawal limit discourages frequent use. A regular savings account has no withdrawal limit but typically pays less interest. If you want to save for a goal six months away and might need the money before then, a money market account offers more flexibility than a CD. If you need to move money in and out constantly, a checking account is more practical.

How FDIC insurance protects your money

Money market accounts at banks are insured by the Federal Deposit Insurance Corporation (FDIC) up to $250,000 per depositor per bank. This means if the bank fails, the FDIC will reimburse you for your balance up to that limit. If you have $150,000 in a money market account at Bank A and the bank closes, you get your $150,000 back. If you have $300,000, you get $250,000 back and lose the rest.

The $250,000 limit applies per bank, not per account. If you have a money market account and a savings account at the same bank and together they total $300,000, only $250,000 is insured. However, if you have accounts at two different banks, each account is insured separately up to $250,000. Credit unions offer similar protection through the National Credit Union Administration (NCUA), also up to $250,000 per member per institution.

This insurance does not protect you from poor investment decisions or market losses — it only protects you if the institution itself fails. Because money market accounts hold cash and earn interest rather than investing in stocks or bonds, your balance does not fluctuate with market conditions, so FDIC insurance is mainly a safeguard against institutional failure, which is rare.

Comparing rates and finding the best money market account for your situation

Money market account rates change frequently, so the best account today may not be the best next month. Before opening an account, visit the websites of several banks and credit unions and note their current rates. Online banks often offer higher rates than brick-and-mortar banks because they have lower overhead costs. Large national banks often offer lower rates because they have many deposits and do not need to compete as aggressively.

Check whether the rate is promotional (higher for a limited time) or ongoing. A promotional rate might be 5.0% for the first three months, then drop to 3.5% — read the fine print. Also compare minimum balance requirements and fees. A bank offering 4.8% with a $25,000 minimum and a $15 monthly fee if you fall below the minimum may cost you more than a bank offering 4.5% with a $500 minimum and no fees.

Once you open an account, monitor the rate periodically. If your bank's rate falls significantly below what competitors are offering, you can move your money to a higher-paying institution. There is no penalty for closing a money market account (unlike a CD), so switching is straightforward — open a new account elsewhere, transfer your balance, and close the old account.

Frequently Asked Questions

Can I use a money market account like a checking account?

Some money market accounts offer check-writing and debit card access, but the six-withdrawal limit still applies. If you write checks frequently or need unlimited access to your money, a checking account is more practical. A money market account works best when you save money and withdraw it only occasionally.

What happens if I exceed the six withdrawals in a month?

The bank can charge you a fee per excess withdrawal (typically $25 to $35) or close your account. Some banks are stricter than others. Before opening an account, ask the bank what its policy is on excess withdrawals so you know what to expect.

Do I pay taxes on money market account interest?

Yes. The interest you earn is taxable income. The bank will send you a Form 1099-INT at the end of the year showing how much interest you earned, and you report that on your tax return. The amount of tax you owe depends on your overall income and tax bracket.

Is a money market account safe if the bank fails?

Yes, up to $250,000. The FDIC insures money market accounts at banks, and the NCUA insures them at credit unions. If the institution fails, you get your money back up to the insurance limit. Institutional failures are rare in the United States.

Can the interest rate on my money market account change?

Yes. Money market account rates are variable, meaning the bank can raise or lower them at any time. The rate typically moves up or down based on what the Federal Reserve does with its benchmark rate, but the bank decides exactly what rate to offer. Check your account statements or log in online to see your current rate.