A money market savings account combines features of checking and savings accounts, with interest rates that move based on what the Federal Reserve does
A money market savings account is a hybrid deposit account offered by banks and credit unions. It sits between a regular savings account and a money market fund (which is different — it's an investment). The account lets you write checks or use a debit card like a checking account, but the money inside earns interest like a savings account. The interest rate is not fixed; it changes when the Federal Reserve raises or lowers its benchmark rate, usually a few times per year.
The trade-off is access. Most money market savings accounts limit you to a certain number of withdrawals per month — often six — before fees kick in. Some banks waive this limit if you keep a high minimum balance, typically $2,500 to $25,000 depending on the bank. The interest rate you earn is higher than a standard savings account but lower than a certificate of deposit (CD) for the same term.
Key Takeaways
- Money market savings accounts earn variable interest rates that shift when the Federal Reserve changes its policy rate, so your earnings move up and down over time.
- You can write checks or use a debit card to access your money, but most accounts limit you to six withdrawals per month before charging a fee.
- The interest rate is higher than a regular savings account but lower than a CD of equal length, making it useful for money you need to reach but want to earn something on.
- Minimum balance requirements range widely by bank — some have none, others require $2,500 to $25,000 to avoid monthly fees or to unlock the advertised rate.
- Your deposits are insured up to $250,000 per account owner per bank by the FDIC (or NCUA if you use a credit union), so the principal is protected.
How the interest rate works
The interest rate on a money market savings account is variable, meaning it is not locked in. Banks set their own rates, but most tie them to the Federal Funds Rate — the rate the Federal Reserve uses to guide short-term lending between banks. When the Fed raises its rate, banks typically raise money market rates within weeks. When the Fed cuts rates, money market rates fall.
This is different from a CD, where the rate is fixed for the entire term. If you open a money market account when rates are high, your rate will drop if the Fed cuts rates later. Conversely, if you open when rates are low and the Fed raises them, your rate will climb. You cannot predict which way rates will move, so a money market account is best for money you plan to keep in the account for less than a year or for money you want to access without penalty.
The actual rate you receive depends on the bank and your balance. Some banks offer a tiered structure: a lower rate on balances under $10,000 and a higher rate on balances above that. Others offer the same rate to all customers. Check the bank's website or call to see what rate applies to your balance size.
Withdrawal limits and fees
Most money market savings accounts allow six withdrawals per month without penalty. This limit comes from federal regulation, though the rule has been relaxed in recent years and some banks no longer enforce it strictly. If you exceed the limit, the bank may charge a fee per extra withdrawal — usually $10 to $25 — or close the account if withdrawals are frequent.
The six-withdrawal limit includes checks written, debit card transactions, transfers to another bank, and phone or online transfers. It does not include ATM withdrawals at the bank's own ATMs or deposits. If you need to withdraw money more than six times per month, a regular savings account or checking account is a better fit.
Some banks waive the withdrawal limit if you maintain a high minimum balance. For example, a bank might allow unlimited withdrawals if your balance stays above $25,000. Read the account agreement to see whether your bank enforces the limit and what balance (if any) exempts you from it.
Minimum balance requirements and fees
Minimum balance requirements vary widely. Some online banks have no minimum at all. Others require $500 to $2,500 to open the account. Still others require a higher balance — $10,000 to $25,000 — to earn the advertised interest rate or to avoid a monthly maintenance fee.
If your balance falls below the minimum, the bank may charge a monthly fee of $5 to $15, or it may drop your rate to a lower tier. Some banks waive the minimum if you set up automatic monthly deposits or if you link the account to a checking account at the same bank. Before opening an account, confirm what minimum applies to you and whether there are ways to waive it.
Money market savings account versus other savings vehicles
| Account Type | Interest Rate | Access | Withdrawal Limit | Best For |
|---|---|---|---|---|
| Money Market Savings | Variable, mid-range | Checks, debit card, transfers | Usually 6 per month | Money you want to access but also earn interest on |
| Regular Savings Account | Variable, lower | Transfers, ATM | Usually 6 per month | Emergency fund, short-term goals |
| Certificate of Deposit (CD) | Fixed, higher | None until maturity | None (locked) | Money you won't need for a set period |
| High-Yield Savings | Variable, mid-range | Transfers, ATM | Usually 6 per month | Emergency fund earning more than a regular account |
| Money Market Fund (investment) | Variable, depends on holdings | Check writing, transfers | None | Investors seeking low-risk, liquid holdings |
A money market savings account is most useful when you want both access and a rate higher than a regular savings account. If you do not need to write checks or use a debit card, a high-yield savings account often pays the same or better interest with fewer restrictions. If you know you will not touch the money for six months or longer, a CD locks in a higher rate and removes the temptation to withdraw early.
FDIC insurance and safety
Money market savings accounts at banks are insured by the Federal Deposit Insurance Corporation (FDIC) up to $250,000 per depositor per bank. This means if the bank fails, your money is protected up to that limit. If you have multiple accounts at the same bank — a checking account, a savings account, and a money market account — the FDIC treats them as one account for insurance purposes, so the total coverage is $250,000 across all of them.
If you use a credit union instead of a bank, your account is insured by the National Credit Union Administration (NCUA) under the same $250,000 limit. If you want coverage above $250,000, you can open accounts at different banks or credit unions, and each account is insured separately.
Money market savings accounts are not investments, so there is no market risk. The principal does not fluctuate based on stock or bond prices. Your only risk is that the interest rate will fall if the Fed cuts rates, which means your earnings will shrink — but the money itself is safe.
When a money market savings account makes sense
A money market savings account is a good choice if you have $5,000 to $50,000 you want to keep liquid — meaning you might need it within a year — and you want to earn more than a regular savings account pays. It works well for a sinking fund (money set aside for a known future expense like a car repair or home improvement) or for a buffer above your emergency fund.
It is less useful if you need to withdraw money more than six times per month, if you have less than the minimum balance the bank requires, or if you plan to leave the money untouched for longer than a year (in which case a CD would lock in a higher rate). It is also not the right tool if you are looking for investment growth — money market accounts are savings vehicles, not investments.
Frequently Asked Questions
Is a money market savings account the same as a money market fund?
No. A money market savings account is a bank deposit account insured by the FDIC. A money market fund is an investment fund that holds short-term debt securities. The fund is not insured and can lose value, though the risk is low. Most people confuse the two because of the name, but they work very differently.
Can I lose money in a money market savings account?
You cannot lose the principal — the money you deposit is insured and safe. Your interest earnings can shrink if the Fed cuts rates and your bank lowers your rate, but the account balance itself will not go down unless you withdraw it.
What happens if I exceed the six withdrawal limit?
Most banks charge a fee of $10 to $25 per withdrawal over the limit. Some banks may close the account if withdrawals are very frequent. Check your bank's fee schedule before opening the account, and ask whether the limit applies to ATM withdrawals at the bank's own machines.
Should I choose a money market account or a high-yield savings account?
If you need to write checks or use a debit card, a money market account is the better choice. If you only need to transfer money or use ATM withdrawals, a high-yield savings account often pays the same rate with fewer restrictions and lower minimum balance requirements. Compare the rates and fees at your bank to decide.
Do I have to keep a certain amount in the account to earn the advertised rate?
Many banks do. Some advertise a rate that only applies to balances above a certain threshold — for example, 4.50% on balances of $25,000 or more, and 3.75% on balances below that. Read the fine print or call the bank to confirm what rate applies to your balance size.