The basic process: what you'll do

Opening a money market account takes about 15 to 30 minutes and happens almost entirely online or over the phone. You'll pick a bank or credit union, choose the account type they offer, provide personal information, fund the account, and then you're done. Most banks let you start the process on their website without leaving home.

The actual steps are straightforward because banks have done this thousands of times. You won't need to visit a branch unless you want to, and you won't need to understand how money market funds work—that's something you decide later, after the account is open.

Key Takeaways

  • You can open a money market account entirely online at most banks and credit unions, with approval usually happening the same day.
  • You'll need a government ID, Social Security number, and proof of address—usually a recent utility bill or lease.
  • The first deposit can be as small as $25 at some banks or as much as $2,500 at others, depending on which institution you choose.
  • Banks check your banking history through ChexSystems, a system that flags accounts closed for overdrafts or fraud, so past problems may block you from opening an account.
  • You can open the account in your name alone, or as a joint account with another person who will have equal access and control.

What documents and information you need before you start

Gather these items before you begin, because you'll need them to complete the application:

  • A government-issued photo ID (driver's license, passport, or state ID card)
  • Your Social Security number
  • Proof of your current address (a utility bill, lease, or mortgage statement dated within the last 60 days)
  • Your employer's name and address, or the name of your school if you're a student
  • The amount you want to deposit to open the account

If you're opening a joint account with someone else, that person will need to provide their ID and Social Security number as well. Some banks require both account holders to be present or to sign documents, while others let one person set it up and add the other later.

Step 1: Choose your bank or credit union

Start by deciding whether you want to bank with a traditional bank, an online bank, or a credit union. Each has different minimum deposits, interest rates, and fees. Write down the names of three to five institutions you're considering, then visit their websites to compare.

Look at the minimum opening deposit—some banks require $25, others $500 or $2,500. Check whether they charge a monthly maintenance fee and what that fee is. Read the interest rate they're currently offering on money market accounts; this changes frequently and varies widely between banks. If you have questions, call their customer service line before you open the account.

Step 2: Start the application online or by phone

Once you've chosen a bank, go to their website and look for "Open an Account" or "Money Market Account." Click that link and select "Money Market Account" from the account types shown. If you can't find it online, call the bank's main number and ask to speak with someone who can walk you through opening one.

The online application will ask for your name, date of birth, address, phone number, email, and Social Security number. It will also ask whether you want the account in your name alone or as a joint account. Answer each question as it appears. Do not skip fields—banks need complete information to verify your identity.

Step 3: Provide your identity information and let the bank verify you

The bank will run a background check through ChexSystems, a database that tracks banking history. This check looks for accounts you've closed due to overdrafts, fraud, or unpaid fees. If you've had problems with a bank account in the past, ChexSystems will flag it, and the bank may deny your application or ask you to explain what happened.

If ChexSystems shows a problem, ask the bank what it found and whether you can dispute it. You have the right to see your ChexSystems report for free once per year by visiting www.chexsystems.com. Some banks offer "second chance" accounts if you have a history of overdrafts or closed accounts, though these accounts may have higher fees or lower limits.

Step 4: Make your first deposit

The bank will tell you how much you need to deposit to open the account. This is called the minimum opening deposit, and it ranges from $25 to $2,500 depending on the bank. You can deposit this money by transferring it from another bank account, mailing a check, or depositing cash at a branch if the bank has physical locations near you.

If you're transferring money from another bank, the bank will give you instructions on how to set up the transfer. This usually takes one to three business days. If you're mailing a check, include a note with your account number and mail it to the address the bank provides. Do not send cash by mail.

Step 5: Confirm your account is open and set up access

Once your deposit clears, the bank will send you a confirmation email or letter with your account number and login information. Save this information in a safe place. Set up online banking by creating a username and password, and download the bank's mobile app if you want to check your balance from your phone.

Some banks mail you a debit card for the money market account, though many do not—money market accounts are designed for saving, not everyday spending. Ask the bank whether a card comes with the account. If you need to withdraw money, you can usually do it online, by phone, or by visiting a branch.

What happens if the bank denies your application

Banks deny applications for a few specific reasons: ChexSystems shows a serious problem like fraud or unpaid fees, your identity cannot be verified, or you provide false information. If your application is denied, the bank must tell you why in writing.

If ChexSystems is the reason, you can dispute the information on your report. If you cannot verify your identity, try applying in person at a branch with your original ID. If you've been denied by multiple banks, look for a bank that offers second-chance accounts, or consider a credit union—they sometimes have more flexible policies for people with banking history problems.

Frequently Asked Questions

How long does it take to open a money market account?

Most banks approve your application the same day you submit it online. Your first deposit may take one to three business days to clear, depending on how you send the money. Once the deposit clears, your account is fully open and you can use it.

Can I open a money market account if I don't have a Social Security number?

No. Banks are required by federal law to collect your Social Security number to verify your identity and prevent fraud. If you're not a U.S. citizen, you may be able to use an Individual Taxpayer Identification Number (ITIN) instead—call the bank and ask.

Do I have to go to a bank branch to open an account?

No. Most banks let you open an account entirely online. You only need to visit a branch if you want to deposit cash, if the bank requires it, or if you prefer to speak with someone in person.

What's the difference between opening a money market account and a savings account?

The opening process is identical. The difference is what you can do with the account after it's open—money market accounts typically offer higher interest rates but limit how many times you can withdraw per month, while savings accounts have fewer restrictions but lower rates. Both are opened the same way.

Can I change my mind after I open the account?

Yes. If you open an account and decide it's not right for you, you can close it anytime. Withdraw your money, call the bank, and ask them to close the account. There's no penalty for closing an account you just opened, as long as you don't have an outstanding balance.