A money market account is a hybrid savings product that combines features of checking and savings accounts

A money market account (MMA) is a deposit account offered by banks and credit unions that pays interest on your balance. Unlike a regular savings account, it typically gives you a small number of checks or debit card transactions per month, and it usually requires a higher opening deposit. The trade-off is that the interest rate is often higher than what you'd earn in a standard savings account, though lower than what you might earn in a certificate of deposit (CD) or money market fund.

The account is called "money market" because banks use the deposits to invest in short-term, low-risk securities like Treasury bills and commercial paper. You don't see those investments — the bank handles them — but the returns help fund the interest they pay you. The Federal Reserve sets a ceiling on how many withdrawals you can make per month (currently six), though banks can be more restrictive.

Key Takeaways

  • Money market accounts pay higher interest than regular savings accounts but require a larger minimum deposit, often $2,500 to $25,000 depending on the bank.
  • You can write checks or use a debit card a limited number of times per month; exceeding that limit may result in fees or account closure.
  • Your deposits are insured up to $250,000 per account holder per bank through the FDIC (or NCUA at credit unions), making them safer than stocks or bonds.
  • Interest rates on money market accounts change with the Federal Reserve's rate decisions, so your earnings will fluctuate over time.
  • Money market accounts work best for money you need to access occasionally but want to earn more on than a savings account would provide.

How the interest rate and minimum deposit work

Banks set their own interest rates on money market accounts, and those rates vary widely. The rate you receive often depends on how much you deposit and how much you keep in the account. Some banks offer a tiered structure: deposit $2,500 and earn one rate; deposit $10,000 and earn a higher rate; deposit $25,000 and earn an even higher rate. A few banks have no minimum, but they typically pay lower interest.

The interest rate itself moves up and down based on what the Federal Reserve does with its benchmark interest rate. When the Fed raises rates, banks usually raise the rates they offer on money market accounts within weeks. When the Fed cuts rates, banks cut their rates too. This means your earnings are not locked in — they can go down as well as up. You should check your bank's current rate before opening an account, because rates change frequently and vary from bank to bank.

Withdrawal limits and how they affect you

Federal rules allow you up to six withdrawals per month from a money market account. This includes checks you write, debit card transactions, transfers to another account, and automatic bill payments. It does not include withdrawals at an ATM or in person at a branch. If you exceed six withdrawals in a month, the bank can charge a fee (usually $10 to $25 per excess withdrawal) or close your account.

In practice, this limit means a money market account is not meant for everyday spending. It works best for money you want to earn interest on while keeping it accessible for occasional needs — an emergency fund, a down payment you're saving for, or money set aside for quarterly tax payments. If you need to move money in and out frequently, a regular savings account or checking account is a better fit, even if the interest rate is lower.

FDIC insurance and what it covers

Money market accounts at banks are covered by FDIC insurance up to $250,000 per depositor per bank. This means if the bank fails, the government guarantees your money back up to that limit. At credit unions, the same protection comes from the NCUA (National Credit Union Administration). This insurance applies to the account itself, not to the investments the bank makes with your money — you're protected against the bank's failure, not against market losses.

If you have more than $250,000 to save, you can open accounts at different banks to stay within the insurance limit at each one. Some people also open separate money market accounts in different ownership categories (for example, one in your name alone and one as a joint account with your spouse) because each category is insured separately. The FDIC website has a calculator that shows you exactly how much of your money is covered.

Money market accounts versus savings accounts and CDs

A regular savings account typically has no minimum deposit, no withdrawal limits, and lower interest rates. You can move money in and out as often as you want without penalty. A money market account requires more money upfront and limits your access, but pays more interest. Choose a savings account if you need flexibility; choose a money market account if you have a lump sum you won't need to touch often.

A certificate of deposit (CD) locks your money away for a set term — three months, one year, five years — and pays a fixed interest rate that does not change. If you withdraw before the term ends, you pay a penalty. Money market accounts let you access your money anytime (within the six-withdrawal limit) and the rate adjusts with the market. CDs pay more if rates are rising, but money market accounts are more flexible if you might need the cash sooner than you expect.

Who should use a money market account

Money market accounts work well for people with a specific amount of money they want to set aside and earn interest on without locking it away. Common uses include building an emergency fund of three to six months of expenses, saving for a home down payment over one to three years, or holding money for a planned major purchase. They also suit self-employed people or small business owners who need to keep quarterly tax payments accessible but earning interest.

Money market accounts are less useful if you have very little to save (because the minimum deposit is high), if you need to withdraw money frequently (because of the six-withdrawal limit), or if you want the highest possible interest rate (because CDs usually beat them when rates are stable). They're also not the right tool if you're saving for retirement — that's what IRAs and 401(k)s are for — or if you're trying to grow wealth over decades, which is where stocks and bonds come in.

How to open a money market account

You can open a money market account at any bank or credit union that offers them. Start by comparing rates and minimum deposits across several institutions — online banks often have higher rates than brick-and-mortar banks because they have lower overhead. Once you've chosen, you'll need to provide your Social Security number, proof of identity, and proof of address. Most banks let you open an account online in 10 to 15 minutes.

You'll then transfer your opening deposit from another account, usually by linking a bank account and initiating an electronic transfer. Some banks offer a debit card right away; others mail it to you. You'll receive checks in the mail within one to two weeks. Before you open, confirm the bank's current interest rate, any monthly fees, and whether there are penalties for falling below the minimum balance.

Frequently Asked Questions

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

Partially. You can write checks and use a debit card, but only up to six times per month total. If you need to make more than six withdrawals, you'll face fees or account closure. For everyday spending, a checking account is better suited.

What happens if I go below the minimum balance?

Banks vary. Some charge a monthly fee (typically $10 to $25) if your balance drops below the minimum. Others close the account or convert it to a savings account. Check your bank's specific policy before opening.

Is a money market account safe if the bank fails?

Yes, up to $250,000. The FDIC (at banks) or NCUA (at credit unions) guarantees your deposits if the institution fails. This protection does not cover investment losses, only the bank's insolvency.

Why would I choose a money market account over a high-yield savings account?

Both offer higher interest than regular savings accounts. Money market accounts give you check-writing ability and often pay slightly more, but require a higher minimum deposit. High-yield savings accounts have no minimum at some banks and no withdrawal limits, making them more flexible.

Do money market accounts have monthly fees?

Many do, ranging from $5 to $25 per month, though some banks waive the fee if you maintain the minimum balance or set up direct deposit. Always ask about fees before opening, because they can eat into your interest earnings.