HYSA vs. Money Market: Where to Park Cash

Most comparisons of these products are unhelpful because they compare the wrong two things. The important distinction is not savings account versus money market account; those are near-identical bank deposits. It is bank deposit versus money market fund, where the insurance, the regulator and the failure mode are all different.

The three products, disentangled

The first two rows are the whole argument. A deposit is a claim on a bank, insured by a federal agency up to the coverage limit. A fund is a portfolio of short-term instruments — Treasury bills, repurchase agreements, commercial paper — and its value depends on what it holds. Well-run government money market funds are extremely safe. They are not insured, and those two words are not interchangeable.

What the rates actually are

Verified as of 2 September 2026. Rates on these products are variable and the bank can change them without notice, so treat this as a snapshot rather than a quote.

Two things to notice. The spread between the best and the worst account on that list is about a percentage point, which on a $10,000 emergency fund is roughly $100 a year — real money, and worth one afternoon of switching. And the highest rate belongs to an online-only bank, which is the usual pattern: no branches, lower costs, more of the spread passed on.

The money market account rates offered by the same institutions generally sit inside that same band. Choosing the product type before choosing the bank optimises the wrong variable. Our rate comparison is updated with dates attached.

Access, which is the real difference

A money market account usually gives you a chequebook and sometimes a debit card. A savings account usually does not, and moving money out means an internal transfer or an ACH push that settles in one to three business days.

Whether that friction is a cost or a benefit depends on what the money is for.

For an emergency fund, friction helps. You want the money reachable in days, not reachable in seconds. A debit card attached to your emergency savings is an invitation.

For money with a known near-term use — a house deposit closing next month, a tax bill due in April — the cheque-writing ability of a money market account is genuinely useful.

One legacy point worth clearing up: the Federal Reserve’s Regulation D limit of six withdrawals a month was suspended in April 2020. Many banks removed their limits, some kept them as policy. Check the specific account rather than assuming either way.

When a money market fund is the better choice

Despite lacking insurance, there are two situations where the fund wins clearly.

The money already lives at your brokerage. Cash awaiting investment earns very little in a default sweep at most brokers. Buying a money market fund with it takes one trade and typically captures a yield close to the short-term rate. If you hold cash inside an IRA or a taxable account, this is the obvious move.

You are above the insurance limit. FDIC coverage is per depositor, per bank, per ownership category. Above that, a government money market fund holding Treasury instruments is arguably safer than an uninsured bank balance, and does not require opening accounts at four institutions.

There is also a tax wrinkle worth knowing. Treasury-only money market funds produce income that is generally exempt from state income tax, which matters in high-tax states. Bank deposit interest is fully taxable at both levels. On a large balance in a state with high income tax, that difference can exceed the rate difference.

Choosing, in four cases

What none of these should be is a checking account earning nothing. The most expensive decision in this entire comparison is leaving a substantial balance in an account paying 0.01%, and it is also the most common one.

What not to optimise

Do not chase promotional rates. An introductory APY that reverts after three months is a marketing cost, not a yield. Compare the standing rate.

Do not stretch for a rate at an unfamiliar institution without confirming FDIC or NCUA membership directly on the regulator’s website. The badge on a marketing page is not verification.

Do not hold long-term money here at all. Cash accounts are for money you will need within a few years. Beyond that horizon, inflation does more damage than the rate repairs — which is what the three-fund portfolio is for.

Frequently asked questions

Is a money market account safer than a high-yield savings account?

No — they carry identical protection. Both are bank deposits insured by the FDIC, or by the NCUA at a credit union, up to the coverage limit per depositor per institution. A money market fund is the different product, and it is not insured.

Is a money market fund FDIC insured?

No. It is an investment, not a deposit. SIPC protection covers the failure of your brokerage, not losses within the fund. Government and Treasury money market funds are considered very low risk, but low risk and insured are not the same thing.

Which pays more, a HYSA or a money market account?

It varies by institution rather than by product type. The spread between banks is usually wider than the spread between the two products at the same bank, so compare specific accounts rather than categories.

Can I still only make six withdrawals a month?

Not necessarily. The Federal Reserve suspended the Regulation D six-transaction limit in April 2020. Some banks dropped their limits, others kept them as their own policy. Check the account terms.

Where should my emergency fund go?

A high-yield savings account, in most cases. It earns the best available rate, carries full insurance, and the one-to-three-day transfer time discourages casual spending without making the money genuinely hard to reach.

Do I pay tax on the interest?

Yes. Bank interest is ordinary income, reported on a 1099-INT, and taxable at both federal and state level. Income from a Treasury-only money market fund is generally exempt from state income tax, which can matter on larger balances.