A money market account, also called a money market deposit account or MMDA, is a bank deposit that earns interest. At an FDIC-insured bank, it falls within the deposit insurance framework of at least $250,000 per depositor, per ownership category, at each insured bank. A money market mutual fund is a different product and isn't FDIC insured.
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What a money market deposit account is
The word “deposit” is the useful part of the full name. The FDIC lists money market deposit accounts among the types of bank deposits its insurance covers. Savings accounts are on that list too. A money market mutual fund, despite sharing much of the name, isn't a bank deposit.
If you're looking for somewhere to keep cash, start by finding out which product you're actually considering. An account description that says “money market” doesn't settle the insurance question. Read the product's full name and confirm whether your money will be held as a deposit at an FDIC-insured bank or invested in a mutual fund.
That distinction matters before you compare earnings. A deposit account and a fund can appear in the same search results, yet the FDIC treats them differently. Don't carry a deposit insurance assumption from one product to the other just because the names sound familiar.
There isn't a bank offer on this page. We haven't supplied a current account APY or a bank's minimum balance requirement. You'll need the actual account terms to assess a particular offer, including how you can use the account and what conditions apply to the quoted rate.
Ask the bank to identify the account in writing if the description is unclear. You should be able to tell if the account is an MMDA before transferring money. An interest figure alone doesn't answer that question, and neither does the fact that a financial institution presents the product alongside deposit accounts.
Are money market accounts FDIC insured?
A money market deposit account at an FDIC-insured bank is an insured deposit within the applicable coverage rules. The FDIC describes coverage as at least $250,000 per depositor, per ownership category, at each FDIC-insured bank. Every part of that description matters.
The depositor is part of the calculation, and so is the bank holding the deposit. Ownership category matters as well. Treating the limit as a separate allowance for every account would leave out the framework the FDIC actually uses.
If you already have deposits at the same bank, don't assess a new money market account in isolation. Consider those deposits together under the relevant ownership category and consult the FDIC's explanation before assuming the full new balance is covered. Opening another account doesn't, by itself, establish another insurance allowance.
The account label also doesn't establish that the bank is insured. Confirm the institution's FDIC status and the product type. These are separate questions: the coverage rules apply to eligible deposits at an FDIC-insured bank, rather than to anything sold under a bank's name.
What deposit insurance doesn't cover
The FDIC excludes mutual funds from deposit insurance. That includes a money market mutual fund. You shouldn't describe a fund as an insured MMDA or use the bank deposit limit to explain its protection.
U.S. Treasury bills also aren't FDIC insured. They are Treasury securities rather than bank deposits. A comparison that puts both T-bills and money market funds in the “not FDIC insured” column is describing their deposit insurance status, not saying the products are otherwise equivalent.
This is a reason to keep the product names precise when moving between accounts. If you leave an MMDA and buy a money market mutual fund, the FDIC coverage attached to the eligible bank deposit doesn't make the fund insured. Review the destination product on its own terms.
Terms like APY, FDIC insurance and money market fund are defined in our savings glossary.
Money market account rates: the dated national average
The FDIC's national average money market rate was 0.63% as of October 19, 2026. This is a national average, not an offer from earninterest.com or a rate promised by any particular bank. The FDIC October 2026 page was last updated on October 19, 2026.
Keep that date attached to the figure. Although this guide was updated and reviewed on November 10, 2026, the supplied FDIC average is dated October 19. A guide's review date doesn't turn an older reference figure into a new daily quote.
The FDIC footnote says its money market rate averages the $10,000 and $100,000 product tiers. Those amounts describe the tiers used in the national measure. They aren't minimum deposit requirements for an account recommended here, and they don't tell you what balance a particular bank requires.
An average provides context for a search for money market account rates. It doesn't identify the offer you'll receive. Before opening an account, compare the bank's own quoted APY with its written account conditions rather than treating the FDIC figure as the available return.
Check the date of any bank quote too. If you're comparing several accounts, use their actual terms and distinguish each offer from the national reference. This guide doesn't rank banks by APY because the supplied sources don't establish current bank-specific offers.
Reading a rate without assuming the rest
A quoted rate can't tell you whether the account fits the way you expect to use your cash. Read the access provisions separately. Ask about any balance conditions and charges in the bank's account documents; we haven't assigned universal amounts or rules to MMDAs here.
The same care applies to insurance. A rate comparison may help you decide which offer deserves a closer look, but it doesn't verify deposit coverage. Confirm that you're comparing money market deposit accounts before placing them alongside one another as insured bank products.
MMA vs savings vs money market fund vs T-bill
Money market deposit accounts and savings accounts both appear on the FDIC's list of covered deposit types. Money market mutual funds and Treasury bills do not. That's the starting distinction when you're choosing between them.
| Product | What you're holding | FDIC insurance status |
|---|---|---|
| Money market deposit account | A bank deposit | Covered at an FDIC-insured bank within the applicable framework |
| Savings account | A bank deposit | Covered at an FDIC-insured bank within the applicable framework |
| Money market mutual fund | A mutual fund investment, not a bank deposit | Not FDIC insured |
| Treasury bill | A Treasury security | Not FDIC insured |
Money market account vs savings account
Choosing between an MMDA and a savings account doesn't necessarily mean choosing between insured and uninsured money. Both are eligible deposit types when held at an FDIC-insured bank, subject to the coverage framework. You still need to assess your deposits at that bank and the relevant ownership category.
The names alone don't tell you which account pays more at a particular institution. Nor do they establish the withdrawal terms you'll receive. Compare the actual account documents before deciding that one label makes an account better for your needs.
For cash you expect to use, ask how you'll access it under each account's terms. If an account description leaves that unclear, get an answer before depositing. This guide doesn't assume every MMA has the same payment features or impose a universal withdrawal limit.
Money market account vs money market mutual fund
A money market mutual fund isn't another name for a money market deposit account. It is a mutual fund, and the FDIC doesn't insure it. That remains the key distinction even when you're comparing products with similar names.
If a provider uses the shorter phrase “money market,” look for the full product description. Don't infer that a fund has deposit coverage from where you found it or how it is displayed. The question is what you own, not just which institution presents it.
We haven't included fund yields or claims about fund returns here. The supplied facts support the insurance distinction, but they don't establish a current fund offer. Use the fund's own documents for a product-specific assessment.
Money market account vs T-bill
A Treasury bill has a stated term. TreasuryDirect describes terms ranging from four weeks to 52 weeks, with bills sold at a discount or at par and face value paid at maturity. You can hold a bill to maturity or sell it earlier.
That maturity structure differs from holding a bank deposit. If you're comparing the two, decide when you expect to need the money and read the account's access terms alongside the bill's maturity date. The option to sell a bill early shouldn't be treated as a promise about the proceeds of an early sale.
Use T-bill rates to review the Treasury side of the comparison. Keep the rate labels and observation dates visible rather than treating a bank quote, an FDIC national average and a Treasury yield as interchangeable figures.
If you decide to investigate bills, how to buy T-bills explains the purchase routes. TreasuryDirect supports non-competitive bids, while banks, brokers and dealers are other purchase channels. Buying a bill through a bank doesn't turn that security into an FDIC-insured deposit.
Taxes on money market account interest
The IRS says interest on bank accounts and other deposits is generally taxable. A money market deposit account earns bank interest, so deposit insurance doesn't make its earnings tax-free. Insurance status and tax treatment answer different questions.
For a bank MMA, interest is generally taxable as interest income at the federal level and typically at the state level. Your own tax position needs a separate review. We haven't applied a tax rate or calculated an after-tax return because the supplied facts don't establish your circumstances or a state bracket.
Don't assume the account has the same tax treatment as a Treasury bill merely because you're comparing both as places for cash. A Treasury interest exemption shouldn't be carried over to bank deposit interest. Keep that distinction in mind when a headline return is the main reason you're considering a move.
The IRS explanation of interest received provides the general starting point. If tax treatment could change your choice, confirm how the rules apply to your return before treating a quoted interest figure as the amount you'll keep.
Frequently asked questions
What is a money market deposit account?
A money market deposit account, or MMDA, is a bank deposit that earns interest. The FDIC lists MMDAs among covered deposit types at FDIC-insured banks, subject to its coverage rules. It isn't a money market mutual fund.
Are money market accounts FDIC insured?
An MMDA at an FDIC-insured bank is covered within the applicable framework. The FDIC describes coverage as at least $250,000 per depositor, per ownership category, at each insured bank. Don't assume each separate account gets its own allowance.
What is the national average money market account rate?
The FDIC national average money market rate was 0.63% as of October 19, 2026. It averages the $10,000 and $100,000 product tiers. This is a dated national average, not a bank offer or a promised account APY.
Is a money market mutual fund the same as an MMA?
No. A money market mutual fund is an investment rather than a bank deposit and isn't FDIC insured. A money market deposit account at an FDIC-insured bank is an eligible deposit within the applicable coverage rules.
Is money market account interest taxable?
Bank MMA interest is generally taxable as interest income at the federal level and typically at the state level. Deposit insurance doesn't make interest tax-free. Consult IRS Topic no. 403 and confirm the treatment that applies to your return.
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Sources
- National Rates and Rate Caps, October 2026, FDIC. National money market average dated October 19, 2026, including the product-tier footnote.
- Understanding Deposit Insurance, FDIC. Covered deposits, excluded investments and the deposit insurance framework.
- Topic no. 403, Interest received, IRS. General tax treatment of interest on bank accounts and other deposits.
- Treasury Bills, TreasuryDirect. Bill terms, purchase prices and payment at maturity.
- Buying a Treasury Marketable Security, TreasuryDirect. Treasury purchase channels and bidding methods.