A money market account (MMA) is a deposit account that sits between a savings account and a checking account. It pays interest — typically more than a standard savings account — while also offering features more associated with checking, such as check-writing privileges or a debit card. Like all bank deposit accounts, it is FDIC-insured up to $250,000 per depositor. The tradeoff is that the best rates usually require a higher minimum balance than a high-yield savings account.
Current money market account rates
As of April 2026, the national average money market rate is 0.57% APY, according to FDIC data. That is better than the 0.38% national average for savings accounts, but both are well below what the best online banks offer.
The best money market accounts at online institutions currently pay 4.0–4.5% APY, which is competitive with — though slightly below — the top high-yield savings accounts sitting at 4.5–5.0% APY. The gap has narrowed substantially in the past two years as competition for online deposits has intensified.
How money market accounts work
When you deposit money in an MMA, the bank pools those deposits and invests them in short-term, highly liquid instruments — Treasury bills, government securities, and similar instruments. You receive a share of the return in the form of interest. Unlike a money market mutual fund, your principal is never at risk — the bank guarantees it and the FDIC backs it.
Key features:
- Interest paid on the full balance (not tiered in most cases)
- Check-writing: write checks directly from the account, typically limited to a few per month
- Debit card: some — not all — MMAs issue a debit card for point-of-sale purchases
- Higher minimums: commonly $1,000–$10,000 to earn the stated APY or avoid fees
- Limited transactions: many banks cap electronic transfers, checks, and debit transactions
MMA vs. HYSA vs. checking vs. standard savings
| Feature | Money market account | High-yield savings | Standard savings | Checking |
|---|---|---|---|---|
| Typical APY (national avg.) | 0.57% | 0.38% | 0.38% | ~0.07% |
| Best available APY | 4.0–4.5% | 4.5–5.0% | 4.5–5.0% | Rare |
| FDIC insured | Yes | Yes | Yes | Yes |
| Check-writing | Sometimes | No | No | Yes |
| Debit card | Sometimes | Rarely | No | Yes |
| Minimum balance | Often $1,000–$10,000 | Often $0 | Often $0 | Often $0–$1,500 |
| Transaction limits | Often yes | Sometimes | Sometimes | No |
The pattern is clear: if you want the highest rate with no minimum, a HYSA from an online bank is usually the better choice. If you want check-writing access alongside a competitive rate and can maintain the minimum balance, an MMA earns that access.
Regulation D and transaction limits
Federal Regulation D historically capped convenient withdrawals from savings accounts and MMAs at 6 per month. The Federal Reserve suspended this limit in April 2020. However, many banks still enforce a 6-transaction cap by their own policy and charge fees for excess transactions. This is not a federal rule anymore — it is a bank-by-bank decision. Read the account agreement carefully.
Withdrawals made in person, by ATM, or by mail are typically not subject to any limit, even at banks that cap electronic transfers.
MMA vs. money market mutual fund — a critical distinction
These two products share a similar name and cause persistent confusion. They are fundamentally different:
| Money market account | Money market mutual fund | |
|---|---|---|
| Type | Bank deposit | Investment product |
| FDIC insured | Yes, up to $250,000 | No |
| Principal guarantee | Yes | No (though very stable) |
| Regulated by | FDIC / OCC | SEC |
| Where to open | Bank or credit union | Brokerage |
A money market fund is an investment that holds short-term debt securities. It is extremely stable — funds very rarely “break the buck” (fall below $1 per share) — but it carries no federal insurance guarantee. Money market funds are appropriate in brokerage accounts as a cash-equivalent holding. They are not the same thing as an MMA at your bank.
Who should consider a money market account
A money market account makes sense when:
- You want a higher rate than a standard savings account and can meet the minimum balance
- You occasionally need to write checks from your savings (paying rent, property taxes, contractors) and want to avoid the extra step of transferring to checking first
- You are holding a large cash position — a settlement, home sale proceeds, inheritance — and need limited transaction flexibility while earning competitive interest
If meeting the minimum balance would stretch your finances, a no-minimum HYSA is the better starting point. The interest advantage of an MMA over a HYSA is small; forcing yourself to maintain a $10,000 minimum to avoid fees can cost more than the rate benefit provides.
Where to find the best rates
Online banks and credit unions consistently pay the most. FDIC data shows national averages that significantly understate what is available — the average is dragged down by large brick-and-mortar banks paying near-zero. Compare rates at multiple online institutions and verify each bank’s FDIC status at fdic.gov/bankfind or the NCUA’s tool at mycreditunion.gov before depositing.
Common mistakes
Confusing an MMA with a money market fund. The fund is not FDIC-insured. The account is. They are not interchangeable.
Ignoring the minimum balance requirement. Many MMAs pay their headline rate only on balances above the minimum. Below that threshold, the account often pays the same 0.01–0.10% as any standard savings account. Verify the tiered rate structure before opening.
Paying fees that erase the interest. A $12/month maintenance fee on an account earning $35/month in interest still leaves you ahead — but not by much. A no-fee HYSA at the same rate would be meaningfully better. Compare total economics, not just APY.
Keeping too many accounts open simultaneously. MMAs work best as a designated pool for a specific purpose — large cash reserve, business expenses, near-term purchase. Spreading small balances across multiple accounts usually means meeting no minimum well and earning the best rate nowhere.
Next step
Decide what role this account needs to fill. If you want maximum yield with no strings, choose a no-minimum HYSA. If you want check-writing convenience and can maintain a $5,000–$10,000 balance, compare the top MMA rates at online banks. Either way, move your idle cash out of a standard savings or checking account earning near zero.