A money market account is a hybrid: it has features of both, but functions as savings

A money market account sits between a traditional savings account and a checking account. It earns interest like savings, but it also gives you limited check-writing and debit card access like checking. The key difference is that the bank legally restricts how many withdrawals you can make per month—usually six—which is why the account is classified as savings, not checking, for regulatory purposes.

The reason for this distinction matters when you're deciding where to put money. If you need to withdraw cash frequently, a money market account will frustrate you because you'll hit withdrawal limits. If you want your money to earn interest while staying accessible for occasional large expenses, it works well. The account number and routing number work like checking, but the withdrawal rules work like savings.

Key Takeaways

  • Money market accounts earn interest rates higher than most savings accounts, but lower than certificates of deposit.
  • You can write checks and use a debit card, but federal rules limit you to six withdrawals per month before fees apply.
  • The account is classified as savings for regulatory purposes, which means it does not count toward your checking account limits at the same bank.
  • Interest rates on money market accounts vary by bank and change monthly, so shopping around can mean hundreds of dollars difference over a year.
  • If you exceed the withdrawal limit, the bank charges a fee per excess withdrawal, typically $25 to $35 per transaction.

How the withdrawal limit actually works

Federal Regulation D caps withdrawals and transfers from savings accounts—including money market accounts—at six per month. This rule applies to transfers out of the account, not deposits in. If you withdraw cash at an ATM, move money to another bank, write a check, or use a debit card, each one counts toward your six.

When you hit the limit, the bank can refuse the transaction, charge you a fee, or convert the account to checking (which usually means losing the interest rate). Most banks charge $25 to $35 per excess withdrawal. Some banks waive the fee once per statement cycle, but read your account agreement to know what yours does. The limit resets on the first day of the next calendar month.

In practice, this means a money market account works best if you make occasional large withdrawals—paying a quarterly insurance bill, covering a car repair, moving money to a brokerage account—rather than frequent small ones. If you need to access your money more than six times a month, a checking account or high-yield savings account without withdrawal limits is a better fit.

Interest rates and how they compare to other accounts

Money market accounts typically pay 4% to 5% annual interest as of 2024, though this varies by bank and changes weekly. Online banks usually offer higher rates than brick-and-mortar banks because they have lower overhead. Credit unions sometimes offer competitive rates to members. The rate you receive depends on your balance—some banks pay higher rates on balances above $25,000 or $100,000.

Compared to other accounts: a regular savings account at a large bank might pay 0.01% to 0.5%, while a high-yield savings account pays roughly the same as a money market account (4% to 5%) but without the withdrawal limit. A certificate of deposit (CD) pays slightly more than a money market account but locks your money away for a fixed term. A checking account typically pays no interest or pays less than 1%.

The difference between a 4.5% money market account and a 0.5% savings account is real money. On $10,000, you earn $450 per year in the money market account versus $50 in the savings account—a $400 difference. Shop around before opening, because rates vary significantly between banks, and some banks raise rates to attract new customers.

When a money market account makes sense

A money market account works well if you have money you want to earn interest on but may need to access for a specific purpose within the next year or two. Examples: an emergency fund you want to keep earning interest, money set aside for a down payment on a house or car, or a buffer for quarterly tax payments if you're self-employed. The withdrawal limit is not a problem if you only touch the account a few times a year.

It also works if you want to separate your spending money (checking) from your savings money (money market) at the same bank. Some people use this structure to avoid the temptation to spend savings—the money market account is less convenient to access, so it stays put longer.

A money market account does not work well if you need frequent access to the money, if you want to make regular automatic transfers out, or if you plan to use it as your primary account. In those cases, a high-yield savings account (no withdrawal limit, similar interest rate) or a checking account (unlimited access, no interest) is the better choice.

How to open and what to watch for

Opening a money market account takes the same steps as opening any bank account: you provide identification, a Social Security number, and an initial deposit (usually $1 to $2,500, depending on the bank). Most banks let you open online in 10 to 15 minutes. You receive an account number, routing number, and debit card in the mail within a week.

Before you open, check the bank's current interest rate, any minimum balance requirement, and what fee they charge for excess withdrawals. Read the account agreement to see whether they waive the fee once per month or charge every time. Some banks also charge a monthly maintenance fee if your balance drops below a threshold—usually $500 to $2,500—so confirm that does not apply to you.

Also confirm whether the bank allows you to link the account to external banks for transfers. Some banks restrict this, which means you can only move money between accounts at the same bank. If you plan to transfer money to a brokerage account or another bank, verify the money market account supports it before opening.

The difference between money market accounts and money market funds

Do not confuse a money market account (a bank product) with a money market fund (an investment product). A money market account is FDIC-insured up to $250,000 per depositor per bank, meaning your money is protected if the bank fails. A money market fund is not insured—it is a mutual fund that invests in short-term debt, and its value can fluctuate.

Money market accounts are offered by banks and credit unions. Money market funds are offered by brokerages and investment firms. If you see "money market" in a brokerage account, it is almost certainly a fund, not a bank account. The names are similar but the products are completely different in terms of risk and how they work.

Frequently Asked Questions

Can I use a money market account as my main checking account?

Technically yes, because you can write checks and use a debit card. Practically no, because the six-withdrawal limit will frustrate you if you make frequent purchases. Money market accounts are designed for money you do not touch often, not for daily spending.

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

The bank charges a fee per excess withdrawal, typically $25 to $35. Some banks refuse the transaction instead. A few banks convert the account to checking, which usually means you lose the interest rate. Check your account agreement to know what your bank does.

Do I pay taxes on money market account interest?

Yes. The bank sends you a 1099-INT form at the end of the year reporting all interest earned. You report this as income on your tax return. The interest is taxed as ordinary income at your regular tax rate, not as capital gains.

Is a money market account safer than a savings account?

Both are equally safe if held at an FDIC-insured bank. The FDIC insures up to $250,000 per depositor per bank, regardless of account type. A money market account is not safer or riskier than savings—the only difference is the withdrawal limit and interest rate.

Can I move money from a money market account to a checking account at the same bank without hitting the withdrawal limit?

No. Transfers between accounts at the same bank count toward the six-withdrawal limit. If you need to move money between your own accounts frequently, a high-yield savings account without withdrawal limits is a better choice.