A money market savings account is a hybrid between a regular savings account and a money market fund

A money market savings account is a bank deposit account that pays interest rates higher than a standard savings account, but lower than what you might earn in a money market mutual fund. The bank pools your money with other depositors' money and invests it in short-term, low-risk debt instruments—things like Treasury bills, commercial paper, and certificates of deposit. In exchange, you get a rate that moves with market conditions instead of staying fixed.

The catch is access. Most money market savings accounts limit how many withdrawals you can make per month (often six), and some require a higher minimum balance to open—anywhere from $1,000 to $25,000 depending on the bank. If you exceed the withdrawal limit, you may face a fee or the account may be converted to a regular savings account. The Federal Reserve's Regulation D used to enforce these limits across all banks, but that rule was suspended in 2020; however, many banks still enforce them anyway.

Money market savings accounts are FDIC-insured up to $250,000 per depositor, per bank. That means if the bank fails, your money is protected. This is different from a money market mutual fund, which is not FDIC-insured and can lose value if the underlying investments decline.

Key Takeaways

  • Money market savings accounts pay higher interest than regular savings accounts because banks invest your deposits in short-term debt securities.
  • Most accounts limit withdrawals to six per month and require a minimum balance of $1,000 to $25,000 to open.
  • Your deposits are FDIC-insured up to $250,000, so your principal is protected even if the bank fails.
  • Interest rates on money market accounts fluctuate with market conditions and are typically lower than what you would earn in a money market mutual fund.
  • Exceeding withdrawal limits can trigger fees or force your account to convert to a regular savings account.

How interest rates and minimums vary by bank

The interest rate you earn on a money market savings account depends on the current federal funds rate, the bank's own policies, and how much money you deposit. Banks that operate only online typically offer higher rates than brick-and-mortar banks because they have lower overhead costs. As of early 2024, online banks were offering rates between 4% and 5.35% APY on money market savings accounts, while traditional banks often offered 0.5% to 2% APY on the same product.

Minimum balance requirements also vary. Some online banks have no minimum at all, while others require $2,500 or more. A few banks tier their rates—meaning you earn a higher rate if you maintain a larger balance. For example, a bank might pay 4.5% APY on balances of $10,000 to $24,999 and 5.0% APY on balances of $25,000 or more. Always check the account disclosure before opening; the rate and minimum you see advertised may change after you deposit your money.

When a money market savings account makes sense

A money market savings account works best if you have money you want to keep safe and accessible but do not need to touch regularly. Common uses include building an emergency fund, saving for a down payment on a house or car over the next year or two, or holding money you plan to invest later but want to earn interest on in the meantime.

The withdrawal limits are the main reason to think twice. If you need to move money in and out frequently—paying bills, making regular transfers to another account, or covering unexpected expenses—a regular savings account or a checking account with interest will frustrate you less. The six-withdrawal limit per month sounds generous until you hit it and face a fee or account conversion.

Money market savings accounts are also less useful if you are comparing them to a high-yield savings account at the same bank. Many online banks now offer regular savings accounts with rates nearly as high as their money market accounts but without the withdrawal restrictions. Before opening a money market account, ask the bank whether their regular savings account rate is competitive; if it is, the money market account may not be worth the hassle.

How your money is invested and what that means for safety

When you deposit money into a money market savings account, the bank does not keep it in a vault. Instead, it invests the pooled deposits in short-term securities—primarily Treasury bills (which mature in a few weeks to a few months), commercial paper (short-term corporate debt), and certificates of deposit issued by other banks. These are considered low-risk because they mature quickly and are backed by the U.S. government or established corporations.

The bank keeps the difference between what it earns on these investments and what it pays you in interest. If market conditions change and short-term rates fall, the bank's earnings shrink, and it may lower the rate it pays you. Conversely, if rates rise, the bank earns more and may raise your rate—though it often lags behind the market.

Your safety comes from two places: the FDIC insurance (which covers your principal up to $250,000) and the fact that the bank is investing in very short-term, stable instruments. You cannot lose money in a money market savings account the way you could in a stock mutual fund. However, inflation can erode your purchasing power if the interest rate does not keep pace with rising prices.

Money market savings accounts versus money market mutual funds

The names are similar, but these are different products. A money market mutual fund is an investment fund that buys the same short-term securities a bank does, but it is not FDIC-insured. If the fund's investments decline in value, your share price can drop. However, money market mutual funds typically offer higher interest rates than money market savings accounts because they do not have the overhead of a bank and do not need to maintain capital reserves.

A money market savings account is a bank deposit product. It is FDIC-insured, has withdrawal limits, and typically pays a lower rate. It is the safer choice if you cannot afford to lose any of your principal. A money market mutual fund is the better choice if you want the highest possible return and can tolerate the small risk that the fund's value might fluctuate.

Most individual investors do not need to choose between them. If you are saving for something specific in the near term and want safety, use a money market savings account. If you are an experienced investor with a large portfolio and want to park cash in something that pays more, a money market mutual fund might make sense as part of a broader strategy.

Fees and penalties to watch for

Money market savings accounts come with several potential fees. The most common is an excess withdrawal fee, charged when you exceed the monthly withdrawal limit (usually six). This fee ranges from $10 to $25 per excess withdrawal, depending on the bank. Some banks will convert your account to a regular savings account instead of charging a fee, which means you lose the higher interest rate.

Other fees include a monthly maintenance fee (usually $5 to $15, though many banks waive it if you maintain a minimum balance), an inactivity fee (charged if you do not make any transactions for a set period), and a low-balance fee (charged if your balance drops below the minimum). A few banks charge a fee to close the account early, though this is less common.

Read the account disclosure document before you open the account. This document, sometimes called a "Truth in Savings" disclosure, lists every fee, the conditions that trigger it, and the exact amount. Do not rely on what a bank representative tells you verbally; the disclosure is the legal document that governs the account.

How to open and manage a money market savings account

Opening a money market savings account is straightforward. You can do it online at most banks in 10 to 15 minutes. You will need to provide your name, address, Social Security number, and date of birth. The bank will verify your identity and run a background check using ChexSystems, a banking history database. If you have a history of overdrafts or fraud, you may be denied.

Once your account is open, you can deposit money by electronic transfer from another bank account, by mailing a check, or (at some banks) by depositing cash at a branch. Withdrawals can usually be made by electronic transfer, check, or debit card, but remember the six-withdrawal limit per month. Some banks count all withdrawals equally; others count only certain types (for example, electronic transfers and checks, but not ATM withdrawals).

Monitor your account regularly. Interest rates change, and your bank may lower its rate without warning. If your rate drops significantly below what other banks are offering, consider moving your money. Switching banks is free and takes a few days; there is no penalty for closing a money market savings account and opening one elsewhere.

Frequently Asked Questions

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

Some banks issue debit cards for money market savings accounts, but not all. If your bank does, those withdrawals typically count toward your monthly limit. Check with your bank before opening the account if debit card access is important to you.

What happens if I exceed the six-withdrawal limit?

Most banks charge a fee of $10 to $25 per excess withdrawal. Some banks convert the account to a regular savings account instead, which means you lose the higher interest rate. A few banks simply refuse the withdrawal. Read your account disclosure to know which rule applies to your bank.

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

No. A money market savings account is a bank deposit product that is FDIC-insured and pays a lower rate. A money market mutual fund is an investment fund that is not FDIC-insured but typically pays a higher rate. Choose the savings account if you want safety; choose the fund if you want higher returns and can tolerate risk.

Can I lose money in a money market savings account?

You cannot lose your principal because the account is FDIC-insured. However, inflation can reduce your purchasing power if the interest rate does not keep pace with rising prices. Your money is safe, but it may not grow as fast as you need it to.

Should I move my money if the interest rate drops?

If your bank's rate falls significantly below what other banks are offering, moving your money is free and takes a few days. There is no penalty for closing a money market savings account. Compare rates regularly and switch if you can earn meaningfully more elsewhere.