A money market account is a hybrid: it functions like a savings account but lets you write checks and use a debit card like a checking account

A money market account (MMA) sits between checking and savings. It earns interest on your balance—like a savings account does—but gives you limited check-writing and debit card access, which checking accounts offer freely. The trade-off is that you can only make a certain number of withdrawals per month (usually six), and you typically need a higher minimum balance to open one and avoid fees.

Banks classify money market accounts separately from both checking and savings on your statements and tax forms. The IRS treats interest earned on an MMA the same way it treats savings account interest: you'll report it on your tax return. But the account itself is its own category, with its own rules about how often you can move money out.

Key Takeaways

  • Money market accounts earn interest like savings accounts but allow limited check-writing and debit card use like checking accounts.
  • Most banks limit you to six withdrawals per month from a money market account before charging a fee or closing the account.
  • Money market accounts typically require a higher opening balance than checking or regular savings accounts.
  • Interest rates on money market accounts usually fall between what you'd earn on a regular savings account and what you'd earn on a certificate of deposit.

Why banks created the hybrid structure

Banks introduced money market accounts in the 1980s when interest rates were high and savers wanted both safety and yield. A regular savings account earned interest but offered no way to access your money except through a teller or ATM. A checking account let you write checks and use a debit card but earned little or no interest. Money market accounts solved both problems—at a cost.

The withdrawal limit exists because banks need to know how much cash they must keep on hand. If you could withdraw unlimited amounts from an interest-bearing account, the bank couldn't invest your balance as aggressively. The six-withdrawal limit (set by federal banking rules, though banks can be stricter) lets them plan their cash reserves while still giving you access to your money when you need it.

How the withdrawal limit actually works

The six-withdrawal limit applies to all withdrawals combined—not six checks and six debit card transactions. It includes transfers to another account at the same bank, transfers to accounts at other banks, checks you write, debit card purchases, and ATM withdrawals. Some banks count phone or online transfers; others don't. Read your account agreement to know what counts at your specific bank.

If you exceed the limit, the bank may charge a fee (typically $10 to $25 per excess withdrawal), or they may convert your account to a checking account, which means you lose the interest rate. Some banks simply refuse to process the withdrawal. The limit resets monthly, usually on the calendar month or on your account anniversary date.

Interest rates and minimum balances vary widely

Money market accounts at traditional banks often earn 0.01% to 0.50% annual percentage yield (APY), depending on the bank and the current rate environment. Online banks and credit unions typically offer higher rates—sometimes 4% to 5% APY—because they have lower overhead costs. The rate you receive may depend on your balance: some banks offer tiered rates, where you earn more if you maintain a higher minimum.

Minimum opening balances range from $0 at some online banks to $10,000 or more at traditional banks. If your balance falls below the minimum, the bank may charge a monthly fee or close the account. Some banks waive the minimum if you set up automatic deposits or maintain a linked checking account.

When a money market account makes sense

A money market account works well if you have money you don't need to touch often but want to access quickly without penalty. Examples include an emergency fund, money you're saving for a down payment over the next year or two, or a buffer you keep above your checking account balance. The interest rate is higher than a savings account, and you can write a check or use a debit card if you need cash fast.

A money market account does not make sense if you need to make frequent transfers or withdrawals. If you're moving money in and out more than six times a month, a regular checking or savings account is simpler and won't penalize you. It also doesn't make sense if you can't meet the minimum balance requirement—the monthly fees will eat into any interest you earn.

How money market accounts appear on your taxes and credit

Interest you earn on a money market account is reported to the IRS on a 1099-INT form, just like interest from a savings account. You report this income on your tax return. The account itself does not appear on your credit report because it's not a loan or line of credit—it's a deposit account. Opening a money market account will not affect your credit score.

If you overdraft a money market account (write a check for more than your balance), the bank may charge an overdraft fee and report the incident to ChexSystems, a banking history database. Future banks may see this and deny you accounts or charge higher fees. Avoid overdrafting by keeping your balance well above zero.

Money market accounts versus money market funds

Do not confuse a money market account with a money market fund. A money market account is a bank deposit account insured by the FDIC up to $250,000. A money market fund is an investment product sold by brokerages and mutual fund companies; it is not FDIC-insured and can lose value. Money market funds are not bank accounts and do not work like checking or savings accounts.

If your bank offers a "money market account," it is a deposit account with FDIC protection. If a brokerage or investment firm offers a "money market fund," it is an investment product without FDIC protection. The names sound similar but the products are fundamentally different. Ask your provider directly which one you're opening.

Frequently Asked Questions

Can I use my money market account debit card as much as I want?

No. Debit card transactions count toward your six-withdrawal limit per month. Once you hit six withdrawals of any kind, the bank may decline further debit card transactions, charge a fee, or convert your account. Check your bank's rules—some banks count only certain types of transactions toward the limit.

What happens if I exceed the withdrawal limit?

The bank may charge a fee ($10 to $25 per excess withdrawal), refuse to process the transaction, or convert your account to a checking account and remove the interest rate. The penalty varies by bank. Review your account agreement or call your bank to know what will happen at your institution.

Is my money safe in a money market account?

Yes, if the account is at an FDIC-insured bank. Your balance is protected up to $250,000 per depositor, per bank. If the bank fails, the FDIC will return your money. Money market accounts at credit unions are insured by the NCUA up to $250,000.

Can I write checks from a money market account?

Yes, but check-writing counts toward your six-withdrawal limit. If you write more than six checks per month, you may face a fee or account conversion. If you need to write many checks, a checking account is a better choice.

Why is the interest rate on my money market account so low?

Traditional banks often offer low rates because they have high operating costs and don't need to compete aggressively for deposits. Online banks and credit unions typically offer higher rates. Shop around—rates vary significantly, and moving your money to a higher-paying institution can earn you hundreds of dollars per year on the same balance.