Yes, Fidelity offers money market accounts with competitive rates

Fidelity offers money market accounts through its brokerage and banking services. The accounts come in two main forms: money market mutual funds (which you can hold in any Fidelity brokerage account) and a money market deposit account called the Fidelity Cash Management Account, which functions as a bank product with FDIC insurance.

The choice between them depends on what you want the account to do. If you're looking for a place to park cash between investments or hold emergency funds with FDIC protection, the Cash Management Account is the straightforward route. If you want exposure to money market funds as an investment within a brokerage account—say, as part of a diversified portfolio—Fidelity's money market mutual funds give you that option.

Both types sit at Fidelity, so you don't need to move money between institutions. You can open either one online in minutes, and both come with check-writing or debit card access depending on which product you choose.

Key Takeaways

  • Fidelity's Cash Management Account is an FDIC-insured money market deposit account that pays interest and allows check writing and transfers.
  • Fidelity also offers money market mutual funds that you can hold inside any brokerage account, with varying expense ratios and yield structures.
  • The Cash Management Account has no monthly fees and no minimum balance requirement to open, though rates and terms can change.
  • Money market mutual funds at Fidelity carry expense ratios (annual costs) that range depending on the specific fund you choose.
  • You can move money between Fidelity accounts instantly, making it easy to shift funds between investments and cash reserves.

Fidelity Cash Management Account: The FDIC-insured option

The Fidelity Cash Management Account is a deposit account, not an investment product. It holds your cash, pays interest based on the current rate environment, and protects your balance up to $250,000 through FDIC insurance. You can write checks directly from the account, use a debit card, and set up automatic transfers.

There is no monthly maintenance fee, and Fidelity does not charge you to open or close the account. The interest rate changes based on market conditions—Fidelity adjusts it periodically, so what you earn today may differ from what you earn in three months. You can check the current rate on Fidelity's website before you open the account.

This account works well if you want a single place to hold emergency savings, keep money between investment moves, or maintain a cash buffer without moving funds to a separate bank. Because it's FDIC-insured, your money is protected even if Fidelity itself faced financial trouble (which is extremely unlikely for a firm of Fidelity's size, but the insurance exists for that reason).

Fidelity money market mutual funds: Investment-grade options

Fidelity offers several money market mutual funds that you can buy within a brokerage account. These are investment products, not bank deposit accounts, so they don't carry FDIC insurance. Instead, they invest your money in short-term debt securities—Treasury bills, commercial paper, and other very low-risk instruments—and pass the returns to you.

The funds come in different varieties: government-only funds (which hold only U.S. Treasury and government agency debt), prime funds (which hold a mix of government and corporate short-term debt), and tax-exempt funds (which hold municipal debt and are useful if you're in a high tax bracket). Each has its own expense ratio—the annual cost Fidelity charges to run the fund—which ranges from around 0.42% to 0.65% depending on the specific fund.

Money market mutual funds are useful if you want to keep cash in your brokerage account while earning a return, or if you're building a diversified portfolio and want a stable, low-volatility holding. The yield tends to track interest rates, so when the Federal Reserve raises rates, money market fund yields rise too.

How Fidelity money market accounts compare to other banks

Fidelity's Cash Management Account rate is competitive but not always the highest available. Online banks like Marcus, Ally, and American Express often offer slightly higher rates on their savings accounts, which function similarly to Fidelity's product. The difference is usually small—sometimes 0.1% to 0.3% annually—but it compounds over time on large balances.

The advantage of Fidelity's account is convenience: if you already have a brokerage account there, you don't need to open a separate account at another institution. Money moves instantly between your investments and your cash account. If you're comparing rates across multiple banks, check current rates on each institution's website, since rates change frequently and vary based on market conditions.

For money market mutual funds, Fidelity's expense ratios are in line with the industry. Vanguard and Schwab offer similar funds with comparable costs. The real difference is which brokerage you already use—if your investments are at Fidelity, buying Fidelity's money market funds keeps everything in one place.

Opening a Fidelity money market account online

You can open a Fidelity Cash Management Account directly on Fidelity's website. The process takes about 10 minutes and requires your Social Security number, date of birth, and address. Fidelity will verify your identity electronically, and the account is usually active the same day or the next business day.

If you want to buy money market mutual funds, you need a Fidelity brokerage account first. If you don't have one, you'll open that during the same process. Once the account is open, you can search for money market funds by name or fund symbol, review the fund's details (including the expense ratio and current yield), and buy shares with cash in your account.

You can fund either account by linking a bank account for transfers, mailing a check, or wiring money. Transfers from another bank usually take one to three business days; internal Fidelity transfers are instant.

Fees and minimum balance requirements

The Fidelity Cash Management Account has no monthly fee, no minimum balance to open, and no minimum balance to maintain. You can deposit $1 and start earning interest immediately. There are no fees for check writing, debit card use, or transfers.

Money market mutual funds don't have account fees, but they do charge an expense ratio—a percentage of your balance taken annually to cover the fund's operating costs. For example, if you hold $10,000 in a Fidelity money market fund with a 0.50% expense ratio, you pay $50 per year. This is deducted automatically from the fund's returns, so you don't write a check; it just reduces your earnings.

Some money market funds have minimum purchase amounts (often $1,000 or $2,500), but Fidelity's money market funds typically allow purchases in any amount once your account is open.

Tax considerations for money market accounts at Fidelity

Interest earned in a Fidelity Cash Management Account is taxable as ordinary income. You'll receive a 1099-INT form at the end of the year showing how much interest you earned, and you report that on your federal tax return. State income tax may also apply depending on where you live.

Money market mutual funds work the same way: any interest or dividends the fund earns are passed to you and reported on a 1099-DIV form. You pay tax on those earnings in the year they occur, even if you don't withdraw the money.

The exception is tax-exempt money market funds, which hold municipal debt. The interest from these funds is usually exempt from federal income tax and sometimes from state income tax if the bonds are issued in your state. These are most useful if you're in a high tax bracket and have a large amount to invest.

Frequently Asked Questions

Can I write checks from a Fidelity money market account?

Yes, if you have the Fidelity Cash Management Account. You can order checks and write them directly from the account. Money market mutual funds don't offer check-writing; they're investment products, not deposit accounts. If you need check-writing access, the Cash Management Account is your option.

What's the difference between Fidelity's Cash Management Account and a regular savings account?

Both are FDIC-insured and pay interest, but a money market account typically offers check-writing and debit card access, while a savings account usually doesn't. Fidelity's Cash Management Account functions as a money market deposit account. The interest rates are often similar between the two products at any given time.

Is my money safe in a Fidelity money market account?

The Cash Management Account is FDIC-insured up to $250,000, so your principal is protected. Money market mutual funds are not FDIC-insured, but they invest in very low-risk securities. Neither product is risk-free, but both are considered extremely safe compared to stocks or bonds.

Can I move money between my Fidelity brokerage account and money market account instantly?

Yes. Transfers between Fidelity accounts are immediate. You can move money from your brokerage account to your Cash Management Account or vice versa in real time, which makes it easy to manage cash and investments in one place.

Do I pay taxes on money market account interest?

Yes, interest from a Fidelity Cash Management Account is taxable as ordinary income. You'll receive a 1099-INT form showing the interest earned, and you report it on your tax return. Tax-exempt money market funds are an exception if you're in a high tax bracket, but most money market earnings are taxable.