A money market account is a hybrid savings product that combines features of a checking account and a savings account, usually offering a higher interest rate than a regular savings account in exchange for a larger opening deposit and limits on how often you can withdraw.

Money market accounts are offered by banks and credit unions. The account holds your money in short-term, low-risk investments — typically Treasury bills, certificates of deposit, and other debt instruments that mature quickly. You own the account directly; the bank uses your deposit to fund these investments and pays you a share of the returns.

The trade-off is straightforward: you get a better interest rate than a savings account, but you must keep a minimum balance (often $2,500 to $25,000, depending on the institution) and you can make only a limited number of withdrawals per month before fees kick in. Some accounts also offer a tiered rate structure, meaning your interest rate rises as your balance grows.

Key Takeaways

  • Money market accounts pay higher interest than savings accounts because your money funds short-term investments, but they require a larger minimum balance to open.
  • Federal rules limit you to six withdrawals per month; exceeding that limit usually triggers a fee or account closure.
  • The interest rate is variable, meaning it can move up or down based on market conditions and the bank's decisions.
  • Money market accounts are FDIC-insured (at banks) or NCUA-insured (at credit unions) up to $250,000, so your principal is protected even if the institution fails.

How the interest rate works

The rate you earn on a money market account is not fixed. Your bank sets it based on current market conditions, the federal funds rate, and how much competition exists in your area. When the Federal Reserve raises its benchmark rate, banks typically raise money market rates within weeks. When rates fall, your earnings fall too.

Some banks use tiered rates: you might earn 4.50% on balances up to $10,000 and 4.75% on balances above that. Others offer a single rate regardless of balance. Check the account disclosure document — usually called a "Truth in Savings" statement — to see exactly how your rate is structured and whether it can change without notice.

The rate you see advertised is the Annual Percentage Yield (APY), which accounts for compounding. This is the number to compare across banks, not the stated interest rate alone.

Withdrawal limits and how they affect you

Federal Regulation D historically capped withdrawals at six per month, though this rule was suspended during the pandemic and has not been formally reinstated. Most banks have kept the six-withdrawal limit anyway, either as a contractual rule or as a soft limit that triggers a fee after you exceed it.

The limit applies to withdrawals, not deposits. You can deposit money as often as you want. Withdrawals include transfers to another account, checks written against the account, and debit card transactions. ATM withdrawals usually count too, though some banks treat in-branch withdrawals differently.

If you exceed the limit, the bank may charge a fee (typically $25 to $35 per excess withdrawal) or close the account. Some banks convert the account to a savings account instead. Read your account agreement to know what happens at your specific institution.

Minimum balance requirements and fees

Money market accounts require you to maintain a minimum balance to earn the advertised rate and avoid a monthly maintenance fee. This minimum varies widely: some online banks ask for $2,500, while others require $25,000 or more. A few banks have no minimum at all, though they typically offer a lower rate in return.

If your balance falls below the minimum, you may lose the higher interest rate and revert to a lower rate, or you may be charged a monthly fee (often $10 to $25). Some banks waive the fee if you maintain a linked checking account or set up direct deposit. Check the fee schedule before opening.

Other fees to watch for include overdraft fees (if the account allows overdrafts), wire transfer fees, and early closure fees if you close the account within a certain period.

Money market accounts versus savings accounts

A regular savings account has no withdrawal limits and usually no minimum balance, but it pays a lower interest rate — often 0.01% to 2.00% APY depending on the bank. A money market account typically pays 4.00% to 5.35% APY (rates vary by institution and change daily), but you must keep a higher balance and limit your withdrawals.

Choose a money market account if you have a lump sum you want to set aside for six months to a year and you do not need frequent access. Choose a savings account if you want flexibility and do not mind earning less interest. If you need to withdraw money regularly — more than six times a month — a money market account will cost you in fees.

Money market accounts versus money market funds

A money market account (held at a bank or credit union) is not the same as a money market mutual fund (held at a brokerage). A money market account is a deposit product insured by the FDIC or NCUA. A money market fund is an investment product with no insurance may provide; your principal can fluctuate, though the fluctuation is usually small.

Money market funds are sold through investment firms like Fidelity, Vanguard, and Charles Schwab. They often have no minimum balance and no withdrawal limits. They also typically pay a slightly higher yield than money market accounts because they invest in a broader range of short-term securities. However, they carry market risk that a bank money market account does not.

Who should use a money market account

Money market accounts work best for people who have saved a substantial amount and want to earn more than a savings account offers without taking on investment risk. Common uses include holding an emergency fund (if you can live with the six-withdrawal limit), saving for a down payment over 12 to 24 months, or parking a bonus or inheritance while you decide what to do with it.

They are less suitable if you need to access your money frequently, if you have a small balance (under $2,500), or if you are saving for a goal more than two years away — in that case, a CD or bond fund might serve you better. They are also not a substitute for a checking account; you still need a separate account for everyday spending.

Frequently Asked Questions

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

No. While some money market accounts offer a debit card, the withdrawal limits make them impractical for daily spending. Use a checking account for regular expenses and a money market account for money you plan to leave untouched.

What happens if I go below the minimum balance?

You will usually lose the advertised interest rate and drop to a lower rate, or you will be charged a monthly maintenance fee. Some banks do both. Check your account agreement to see the exact consequence at your bank.

Is my money safe in a money market account?

Yes, if the account is at an FDIC-insured bank or NCUA-insured credit union. Your deposits are protected up to $250,000 per account owner, per institution. The account itself is not an investment; it is a deposit product backed by federal insurance.

Can the interest rate change without warning?

Yes. Money market rates are variable, meaning your bank can change them at any time. Banks typically notify you before a rate drop, but they are not required to. Check your rate regularly or set up alerts with your bank.

How does a money market account compare to a CD?

A CD locks your money for a set term (three months to five years) and pays a fixed rate; you cannot withdraw early without a penalty. A money market account has no term and a variable rate, but you can withdraw up to six times a month. CDs usually pay slightly more if rates are stable, but money market accounts give you flexibility.