Pricing & Math
How are money market account rates set?
Money market account (MMA) rates are variable and set individually by each bank, and they typically track Fed rate moves faster than a CD (which is locked) but similarly to a high-yield savings account. The FDIC's July 2026 national average MMA rate is 0.65% APY, while top nationwide MMAs pay several times that — and many use tiered rates that only apply the top APY above a minimum balance.
The full picture
A money market account (MMA) pays a variable APY that the bank can raise or lower at any time — unlike a CD, there's no rate lock. Because the rate isn't fixed, an MMA's APY tends to move in the same direction as the Federal Reserve's benchmark rate, usually within weeks of a Fed decision, similar to how a high-yield savings account's rate behaves.
What moves a money market account's rate
- Fed funds rate changes — the single biggest driver; a rate hike or cut typically shows up in MMA APYs within a few weeks. FOMC decisions are published at federalreserve.gov/monetarypolicy/openmarket.htm.
- Competitive pressure — online banks with low overhead compete on rate to attract deposits, so MMA APYs vary widely by institution even in the same rate environment.
- Balance tier — many MMAs pay a top rate only on balances above a set minimum (commonly $1,000-$10,000), with a lower rate — sometimes much lower — below that threshold.
MMA vs. savings vs. CD: how each rate behaves
- Money market account — variable, can change anytime, usually tracks the Fed closely; often includes check-writing or a debit card.
- High-yield savings account — variable, behaves similarly to an MMA rate-wise, but typically doesn't include check-writing.
- CD — fixed and locked for the term once opened; doesn't move with the Fed until it matures and you reinvest.
The tiered-rate catch
A bank advertising "up to 4.50% APY" on an MMA is often describing the rate on balances above a specific tier — a lower balance can earn a meaningfully lower rate at the same bank. Before opening an MMA for its headline APY, check the account's actual rate schedule (usually in the account's rate/fee disclosure, required under Regulation DD) to see what rate applies to the balance you'll actually keep there.
What the sources say
- The FDIC's national average money market account rate was 0.65% APY as of the July 20, 2026 National Rates and Rate Caps update. — FDIC — National Rates and Rate Caps
- The FDIC publishes updated national rate data every third Monday of the month, using the last business day of the prior month's data. — FDIC — National Rates and Rate Caps
- Regulation DD requires depository institutions to disclose APY — including any tiered or balance-dependent rate structure — on deposit account terms. — CFPB — Regulation DD
Key takeaways
- MMA rates are variable and bank-set — they can change at any time, with no advance notice required.
- The Fed funds rate is the primary driver; MMA rates typically move within weeks of an FOMC decision.
- The FDIC's national average MMA rate (0.65% as of July 2026) is far below what top nationwide MMAs post.
- Many MMAs use tiered rates — the advertised top APY may only apply above a minimum balance.
- Unlike a CD, an MMA's rate can also fall at any time — there's no lock protecting today's rate.
See our best money market accounts guide for a ranked, currently-updated comparison. To compare live MMA and savings APYs across institutions in one place, ClearValue Banking's account comparison tool lines up posted rates.
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Published 2026-08-13 · Updated 2026-08-13 · https://clearvaluelending.com/answers/money-market-account-rates