What a money market account actually is

A money market account (MMA) is a savings account that sits between a regular savings account and a money market fund. It typically pays a higher interest rate than a standard savings account, but requires you to keep a larger balance to earn that rate. In exchange for the higher rate, the bank limits how many times per month you can withdraw money — usually six times.

The account is called "money market" because banks use the deposits you make to invest in short-term, low-risk securities like Treasury bills and commercial paper. That's where they get the money to pay you a higher rate. You're not investing directly — the bank does that work — but you're benefiting from the returns they earn.

The key trade-off is simple: more interest, but less access to your cash. If you need to move money in and out frequently, an MMA will frustrate you. If you have money sitting idle that you won't touch for months, an MMA can earn you noticeably more than a regular savings account.

Key Takeaways

  • Money market accounts pay higher interest rates than regular savings accounts, but require a larger minimum balance to earn that rate.
  • Banks limit withdrawals to six per month under federal rules, though some banks enforce this more strictly than others.
  • Your deposits are insured up to $250,000 by the FDIC, the same as any other bank account.
  • Interest rates on MMAs change with the market, so the rate you open with today may be lower or higher in three months.
  • An MMA makes sense if you have money you won't need for several months and want to earn more than a savings account pays.

How the withdrawal limit actually works

Federal rules allow you to make up to six withdrawals or transfers per month from a money market account. This includes transfers to another account at the same bank, transfers to an account at a different bank, and ATM withdrawals. Debit card purchases do not count as withdrawals under the federal rule, though some banks treat them differently in their own terms.

What happens if you exceed six? The bank can charge you a fee for each withdrawal over the limit — usually $10 to $25 per transaction. Some banks will simply refuse the withdrawal. A few banks will downgrade your account to a regular savings account if you repeatedly go over the limit. Read your bank's specific rules before you open the account, because enforcement varies widely.

The limit exists because banks need to know roughly how much cash they'll need on hand. If too many people withdraw too often, the bank can't invest the deposits and earn the returns that fund the higher interest rate.

Minimum balance requirements and how they affect your rate

Most banks that offer money market accounts require you to maintain a minimum balance — often $2,500, $5,000, or $10,000 — to earn the advertised interest rate. If your balance falls below that threshold, the bank typically drops your rate to something much lower, sometimes as low as 0.01 percent. You don't lose the account, but you lose the reason you opened it.

Some banks have tiered rates: keep $2,500 and earn 4.00 percent, keep $5,000 and earn 4.25 percent, keep $10,000 and earn 4.50 percent. Others have a single threshold — hit it or miss it. A few banks have no minimum at all, though their rates are usually lower to compensate.

Before you open an MMA, calculate whether you can realistically keep the minimum balance without touching it. If you're living paycheck to paycheck, an MMA will penalize you for dipping below the threshold. A regular savings account with no minimum makes more sense in that situation, even if the rate is lower.

FDIC insurance and what it covers

Money market accounts 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. The insurance is automatic — you don't have to do anything to activate it.

The $250,000 limit applies to the total of all your deposits at that bank across all account types. If you have $150,000 in a money market account and $120,000 in a regular savings account at the same bank, only $250,000 total is insured. The remaining $20,000 is not protected.

If you have more than $250,000 to deposit, you can open accounts at different banks and each account will be insured separately. You can also open a joint account with another person — that gets its own $250,000 of coverage. But a single account at a single bank maxes out at $250,000.

Interest rates and how they change

The interest rate on a money market account is not fixed. It moves up and down based on what the Federal Reserve does with its benchmark interest rate. When the Fed raises rates, banks raise the rates they pay on MMAs. When the Fed cuts rates, banks cut MMA rates.

This happens because banks compete for deposits. If one bank raises its MMA rate to 4.75 percent, other banks have to match it or lose customers. The Fed doesn't set the MMA rate directly — it sets the benchmark that banks use to decide what to offer.

You should expect the rate you earn today to be different in six months. Some banks notify you when they change your rate; others don't. Check your account statements or log into your online banking to see if your rate has moved. If your bank's rate falls significantly behind competitors, you can move your money to a bank offering more.

When an MMA makes sense versus other accounts

A money market account is the right choice if you have a specific amount of money you won't need for at least three to six months, you can keep the minimum balance without touching it, and you want to earn more than a regular savings account pays. Common situations: a tax refund you're saving for a car down payment, an inheritance you're not ready to invest, or an emergency fund that's grown larger than you need.

A regular savings account makes more sense if you need to withdraw money frequently, you can't maintain the minimum balance, or you want maximum flexibility. The rate is lower, but there are no withdrawal limits and no minimum balance penalties.

A certificate of deposit (CD) makes sense if you can lock your money away for a fixed period — three months, six months, a year — and don't need access before that date. CDs typically pay more than MMAs because you're giving up access entirely. But if you might need the money before the CD matures, you'll pay an early withdrawal penalty.

How to open a money market account

Opening an MMA is the same process as opening any bank account. You'll need a government-issued ID, your Social Security number, and proof of address (usually a recent utility bill or lease). Most banks let you open online in 10 to 15 minutes. Some still require you to visit a branch in person.

Before you open, compare rates and minimum balances across at least three banks. The difference between 4.00 percent and 4.75 percent doesn't sound like much, but on $10,000 it's $75 per year. On $50,000 it's $375 per year. Check the bank's website or call to confirm the current rate and minimum, because both change frequently.

Once your account is open, set a calendar reminder to check the rate every three months. If your bank's rate falls more than 0.25 percent behind competitors, consider moving your money. Banks count on inertia — they know most people won't bother to switch — so they sometimes drop rates on existing customers while offering higher rates to new ones.

Frequently Asked Questions

Can I use a debit card to withdraw from a money market account?

Most banks issue a debit card for MMAs, but the card usually doesn't count toward your six-withdrawal limit under federal rules. However, some banks count debit card purchases as withdrawals in their own terms, so check before you open the account. If your bank counts them, you'll hit the limit quickly and face fees.

What happens if I go below the minimum balance?

Your rate drops to a much lower rate, often 0.01 percent or less. You keep the account, but you stop earning the advertised interest. Some banks charge a monthly fee if you fall below the minimum. The penalty lasts until you bring the balance back up.

Is a money market account the same as a money market fund?

No. A money market account is a bank account insured by the FDIC. A money market fund is an investment product sold by brokerages and mutual fund companies, not insured by the FDIC, and carries more risk. The names are similar but they're different products.

Can I move money from my MMA to my checking account without hitting the withdrawal limit?

Transfers between accounts at the same bank count as withdrawals under federal rules, so yes, they count toward your six-per-month limit. If you need to move money frequently, an MMA will frustrate you — a regular savings account is better.

What if interest rates drop after I open my account?

Your rate will drop too, because banks adjust rates based on what the Fed does. You can't lock in a rate on an MMA the way you can with a CD. If you want a may provide rate, a CD is the right product.