Wealthy PotFZFXX Review (2026)
A Treasury-only core option at Fidelity, so more of the income escapes state tax than SPAXX or FDRXX
By Wealthy Pot · Last updated September 2026
Who FZFXX is for
Fidelity customers in a high-tax state who want the core position to hold Treasuries rather than agency paper
Yield, fees & minimum
Fidelity Treasury Money Market Fund (FZFXX) is a treasury money-market fund from Fidelity, with a 0.42% expense ratio and a $0 minimum. Its 7-day SEC yield (3.44% (7-day SEC yield, 2026-09-20)) moves with short-term rates. Confirm the current figure on the official page. State tax: treasury-focused, so most income is typically exempt from state and local tax. confirm the fund’s annual u.s. government obligations percentage for your tax year. It can serve as an automatic core/sweep position. It aims to hold a stable $1.00 share price, though that is a target rather than a guarantee.
The bottom line
A Treasury-only core option at Fidelity, so more of the income escapes state tax than SPAXX or FDRXX Main drawback: same 0.42% expense ratio as spaxx, and fidelity does not list it as a core option inside iras.
Compare FZFXX with…
See how FZFXX stacks up in our money-market fund comparison, or compare FDIC-insured options in our high-yield savings guide.
We summarize the fund's published facts, not user reviews. 7-day yields are variable, change daily, and are re-checked against Fidelity's official page. Money-market funds are not FDIC-insured and, while low-risk, can lose value in extreme conditions. Some outbound links may be affiliate links. That never affects which funds we include or how we rate them. Nothing here is financial advice.