A money market deposit account is a savings account that pays higher interest than a regular savings account, but requires you to keep a larger balance and limits how often you can withdraw

Money market deposit accounts (MMDAs) sit between a regular savings account and a certificate of deposit (CD). The bank pays you more interest because you agree to keep more money in the account and make fewer withdrawals. Most banks require a minimum balance — often $2,500 to $25,000, though this varies — and limit you to a certain number of withdrawals per month, typically six. If you go over that limit, you pay a fee or the bank may close the account.

The interest rate on an MMDA is higher than a standard savings account but usually lower than a CD of the same length. The rate changes based on what the Federal Reserve does with interest rates, so your earnings go up and down over time. Because the account is held at a bank (not a brokerage), it is insured by the Federal Deposit Insurance Corporation (FDIC) up to $250,000, which means your money is protected if the bank fails.

Key Takeaways

  • Money market deposit accounts require a higher minimum balance than savings accounts but pay more interest in return.
  • You are limited to a set number of withdrawals per month — usually six — and fees apply if you exceed that limit.
  • The interest rate changes with market conditions and is not locked in like a CD rate would be.
  • FDIC insurance protects your money up to $250,000 if the bank fails, making MMDAs as safe as regular savings accounts.

How the withdrawal limit works in practice

The six-withdrawal limit applies to transfers and withdrawals combined. This means if you withdraw cash at an ATM, transfer money to another account, or write a check from the MMDA, each one counts toward your limit. Once you hit six in a month, you cannot make any more withdrawals until the next calendar month begins.

Some banks enforce this strictly and charge a fee — usually $25 to $35 — each time you go over. Others may close the account or convert it to a regular savings account if you repeatedly exceed the limit. A few banks have relaxed this rule in recent years, so ask your bank what their specific policy is before you open an account.

Interest rates and how they compare

The interest rate on an MMDA is set by the bank and changes whenever the bank decides to change it. It is not locked in like a CD rate. When the Federal Reserve raises its benchmark rate, banks typically raise MMDA rates within weeks. When the Fed cuts rates, banks lower MMDA rates just as quickly — sometimes faster.

Right now, MMDA rates vary widely by bank. Some online banks offer rates that are competitive with or better than CDs, while traditional brick-and-mortar banks often offer much lower rates. The difference between a 4.5% rate and a 0.5% rate on a $10,000 balance is $400 per year, so shopping around matters. You can compare rates on sites that track bank offerings, though you will need to contact the bank directly to confirm the current rate and any promotional offers.

Minimum balance requirements and fees

Most banks set a minimum balance requirement for MMDAs, and some charge a monthly fee if your balance falls below it. A few banks waive the fee if you maintain the minimum, while others charge the fee regardless. Common minimums range from $2,500 to $25,000, but some banks have no minimum at all.

Beyond the monthly maintenance fee and the over-limit withdrawal fee, watch for inactivity fees (charged if you do not make a deposit or withdrawal for a set period) and fees for closing the account early. Read the account disclosure document before you open the account — it lists every fee and the exact conditions that trigger them.

When an MMDA makes sense for your situation

An MMDA works well if you have money you want to earn interest on but might need to access occasionally — say, an emergency fund or money you are saving for a down payment over the next year or two. The higher interest rate than a savings account makes it worth the trade-off of fewer withdrawals and a higher minimum balance.

An MMDA does not make sense if you need to withdraw money frequently, if you cannot meet the minimum balance, or if you want to lock in a rate for a set period. In those cases, a regular savings account, a CD, or a money market fund (offered by brokerages, not banks) might be a better fit. If you are comparing an MMDA to a CD, remember that the CD rate is may provide but the MMDA rate can drop at any time.

FDIC insurance and what it covers

Money market deposit accounts at banks are covered by FDIC insurance up to $250,000 per depositor, per bank. This means if the bank fails, the FDIC will reimburse you for your balance up to that limit. If you have multiple accounts at the same bank, the insurance covers each account type separately — so a regular savings account and an MMDA are each insured up to $250,000.

If you have more than $250,000 to deposit, you can open accounts at different banks to keep all your money insured. Some people also open joint accounts (insured separately) or retirement accounts (also insured separately) to increase their coverage. The FDIC website has a calculator that shows you exactly how much of your money is covered based on how you hold the accounts.

How to open an MMDA and what to expect

Opening a money market deposit account takes 10 to 15 minutes online or in person. You will need to provide your name, address, Social Security number, and date of birth. The bank will run a background check (usually through ChexSystems, which tracks banking history) and may ask about the source of your initial deposit if it is large.

Once the account is open, you can set up direct deposit to it just like any other bank account. You will receive an account number and routing number, which you can give to your employer or another source of regular deposits. Some banks mail a debit card; others do not. Ask whether the card can be used to withdraw from the MMDA or only from a linked checking account, since using the card to withdraw from the MMDA counts toward your monthly limit.

Frequently Asked Questions

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

Some banks issue debit cards for MMDAs, but many do not. If your bank does, each debit card withdrawal counts toward your six-withdrawal limit. Ask your bank whether the card is tied to the MMDA or to a linked checking account before you open the account.

What happens if I go over the withdrawal limit?

Most banks charge a fee of $25 to $35 each time you exceed the limit. Some banks convert the account to a regular savings account or close it if you repeatedly go over. Check your account agreement to see your bank's specific policy.

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

No. A money market deposit account is a bank product insured by the FDIC. A money market fund is an investment product sold by brokerages and is not FDIC-insured. Money market funds can offer higher yields but carry more risk.

Can I move money from my MMDA to my checking account without it counting as a withdrawal?

A transfer between accounts at the same bank counts as a withdrawal under federal rules, though some banks have relaxed this. Ask your bank whether transfers to a linked checking account count toward the limit.

What if the interest rate drops after I open the account?

The bank can lower the rate at any time without your permission. If rates drop significantly, you can close the account and move your money to a bank offering a better rate, though some banks charge a fee for early closure.