Which is more liquid?

Money market funds usually allow faster access. Ladders free cash at maturities unless you sell early.

Which yield is higher?

It changes with the curve and fees. Always compare after tax and after expenses.

T-bill interest is generally state-exempt; many fund distributions are not fully equivalent — read the fund’s tax characteristics.

Yes. A common design is a liquid fund sleeve plus a bill ladder for scheduled cash.

T-bill ladder vs money market fund

Ladders lock a maturity calendar; money funds prioritize daily liquidity. After-tax cash and operational friction decide.

Liquidity shape

Money market funds typically allow same-day or next-day access to most balances (fund rules vary). A ladder releases cash when rungs mature unless you sell on the secondary market.

If emergency draws are unpredictable, a larger pure-cash or fund sleeve plus a smaller ladder is often cleaner than 100% bills.

Yield behavior

Fund yields float with the market. Ladder rungs lock auction or secondary rates until maturity. Neither always “wins” on a pre-tax chart for a full year.

Tax characteristics

Bill interest’s state treatment is a structural edge in high-tax states. Fund distributions can include different components — read the tax supplement, do not assume equivalence to a pure T-bill.

A practical split

Write two buckets: (1) unknown-date cash in a liquid vehicle, (2) known-date cash in ladder rungs. Rebalance when life events move dates between buckets.

On this wire

General information, not personalized advice.