A money market savings account works best if you have money sitting idle and want a higher rate than a regular savings account, but you need to accept lower rates than a CD and limits on how often you can withdraw
A money market savings account is worth opening if you have $2,500 or more that you won't need for at least a few months, and your bank or credit union offers a rate meaningfully higher than their standard savings account. The trade-off is straightforward: you get better interest, but the bank limits how many withdrawals you can make per month (usually six), and the rate can drop if the Federal Reserve cuts rates. If you need to move money in and out frequently, or you want the highest possible rate, a money market account is not the right tool.
The real decision is not whether money market accounts are "good" in general—it is whether this specific account solves your specific problem. That problem is usually: "I have money I do not need right now, I want it to earn something, but I might need it within a year." If that describes your situation, read on. If you are looking for the absolute highest rate or you need to withdraw money weekly, skip to the alternatives section.
Key Takeaways
- Money market savings accounts pay more interest than regular savings accounts at the same bank, but less than a CD at the same bank, because you can withdraw money without penalty.
- Most banks limit you to six withdrawals per month; going over that limit usually costs you a fee or converts the account to a regular savings account.
- The interest rate is not fixed—it can drop if the Federal Reserve cuts rates, so you are not locked in like you are with a CD.
- Online banks and credit unions often offer higher money market rates than brick-and-mortar banks, but the withdrawal limits and rate risk are the same.
- A money market account makes sense for an emergency fund that has grown larger than you need, or for money you are saving for something six to twelve months away.
How the interest rate compares to other accounts
At any given bank, the money market savings account rate sits between the regular savings account rate and the CD rate. As of early 2024, a typical brick-and-mortar bank might pay 0.01% on a regular savings account, 4.5% on a money market account, and 5.0% on a one-year CD. An online bank might pay 4.75% on a money market account and 5.25% on a one-year CD. The gap between money market and CD rates is usually 0.25% to 0.75%, which is the price you pay for the ability to withdraw without penalty.
That gap matters more the longer you lock money away. If you put $10,000 in a money market account at 4.5% for one year, you earn $450. If you put the same $10,000 in a one-year CD at 5.0%, you earn $500. The difference is $50—not huge. But if you put $10,000 in a money market account at 4.5% for three years, you earn $1,411 (assuming the rate stays the same, which it will not). A three-year CD at 5.0% would earn you $1,576. The longer the horizon, the more the rate difference costs you.
The withdrawal limit and what happens if you exceed it
Federal rules allow banks to limit money market savings accounts to six withdrawals per month. Most banks enforce this limit, though some have stopped. If you exceed six withdrawals in a month, the bank can charge you a fee (usually $10 to $25 per excess withdrawal) or downgrade your account to a regular savings account, which pays a much lower rate.
The limit applies to transfers and checks, not to deposits. You can deposit money as many times as you want. The limit is specifically on money leaving the account. Some banks count ATM withdrawals, some do not. Some count transfers to other banks, some count only transfers within their own system. Before you open a money market account, call the bank and ask exactly what counts toward the six-withdrawal limit. If you think you will need to move money more than six times a month, a regular savings account or a money market checking account (which has no withdrawal limit but pays almost no interest) is a better fit.
When rates drop and you are stuck with less
A money market savings account rate is not fixed. When the Federal Reserve cuts interest rates, banks cut their money market rates too, sometimes within days. A CD locks in a rate for a set term—if you buy a one-year CD at 5.0%, you earn 5.0% for the full year no matter what happens to other rates. A money market account does not. If you open a money market account at 4.5% and the Fed cuts rates three months later, your bank might drop the rate to 4.0% or lower.
This is the hidden cost of flexibility. You keep the right to withdraw without penalty, but you give up the certainty of a locked-in rate. If you are saving for something specific that will happen in six months, and you want to know exactly how much interest you will earn, a CD is more predictable. If you are saving for something that might happen in six months or might happen in a year, and you want the option to withdraw early, a money market account is worth the rate risk.
Money market accounts versus other places to park cash
A money market savings account is not the only option for money you do not need right now. The choice depends on how soon you might need the money and how much certainty you want.
| Account Type | Current Rate Range | Withdrawal Penalty | Best For |
|---|---|---|---|
| Regular savings account | 0.01% to 0.5% | None | Money you might need anytime, with no penalty |
| Money market savings account | 4.0% to 5.0% | None (but six-withdrawal limit) | Money you will not need for several months, but might need before a year is up |
| Certificate of deposit (CD) | 4.5% to 5.5% | Yes, usually three to six months of interest | Money you will not touch for a set period, and want the highest rate |
| High-yield checking account | 4.0% to 5.0% | None | Money you need to access frequently, and you meet the bank's requirements (direct deposit, debit card use, etc.) |
If you have an emergency fund and it has grown to more than three months of expenses, the extra money might sit in a regular savings account earning almost nothing. Moving that extra amount to a money market account at the same bank costs nothing and earns you 4% to 5% instead of 0.01%. That is a concrete win. If you are saving for a car you plan to buy in eight months, a money market account lets you earn interest without locking the money away. If you are saving for retirement and will not touch the money for twenty years, a money market account is the wrong tool—a CD ladder or an investment account makes more sense.
Where to find the best money market rates
Online banks and credit unions typically offer higher money market rates than brick-and-mortar banks. As of early 2024, online banks were offering rates around 4.75% to 5.0%, while traditional banks were offering 3.5% to 4.5%. Credit unions vary widely depending on the union, but many offer rates competitive with online banks.
The catch is that online banks have no physical branches, so you cannot walk in and deposit cash. Most online banks let you deposit checks by phone camera, and they reimburse ATM fees, so the lack of branches is usually not a real problem. If you need to deposit cash regularly, a credit union or a traditional bank with branches in your area is more practical, even if the rate is lower. The difference between 4.5% and 5.0% on $10,000 is $50 per year—not worth switching banks if it means driving to a branch every month.
The real question: what are you saving for?
The best way to decide is to answer this question: when will I need this money? If the answer is "I do not know, but probably within a year," a money market account is a good fit. If the answer is "I will not need it for three years or more," a CD or a longer-term investment is better. If the answer is "I might need it next week," a regular savings account is the right choice, even though it pays almost nothing.
A money market account is not a permanent home for your money. It is a way station—a place to keep money that is between states. It earns you real interest without locking you in, but it costs you the highest possible rate and it limits how often you can move the money. If you understand that trade-off and it matches your situation, open one. If you are looking for the highest rate or the most flexibility, look elsewhere.
Frequently Asked Questions
Can I lose money in a money market savings account?
No. Money market savings accounts are FDIC-insured up to $250,000 per depositor per bank, the same as regular savings accounts. The bank cannot lose your principal. The only way you lose money is if the interest rate drops so much that you would have earned more in a CD, but that is an opportunity cost, not an actual loss.
What happens if I withdraw more than six times in a month?
The bank can charge you a fee (usually $10 to $25 per excess withdrawal) or downgrade your account to a regular savings account, which pays a much lower rate. Some banks do both. Before you open an account, ask the bank what their specific policy is, because it varies.
Is a money market account the same as a money market fund?
No. A money market savings account is a bank account insured by the FDIC. A money market fund is an investment that is not insured and can lose value. They have similar names but work very differently. This article is about the bank account, not the fund.
Should I move my emergency fund to a money market account?
Only the part of your emergency fund that is larger than you need. If you keep three months of expenses in a regular savings account and you have saved six months, move the extra three months to a money market account at the same bank. You keep the money accessible, but it earns 4% to 5% instead of 0.01%. If your entire emergency fund is three months or less, keep it in a regular savings account where you can withdraw it anytime without hitting the six-withdrawal limit.
Can the bank change the interest rate whenever they want?
Yes. The rate is not fixed like a CD rate. Banks usually change money market rates when the Federal Reserve changes rates, but they can change them anytime. Some banks change rates weekly. If rates drop significantly, you can move the money to a different bank's money market account or to a CD, but you cannot undo the rate drop on money already in the account.