There is a specific pile of money that wrecks otherwise sensible men: the cash you will need in two or three years and cannot afford to lose. The house deposit. The kid's first tuition bill. The business buffer. It is too soon for the stock market and too important to leave rotting in a checking account earning nothing. The instruments built for exactly this job are boring, government-issued, and most people have never bothered to learn the differences.
Start with the part nobody disputes: a high-yield savings account at a bank like Ally or Marcus, or a money market fund such as Vanguard's VMFXX, is the floor. As of mid-2026 those have been paying in the rough neighborhood of 4%, fully liquid, FDIC-insured up to $250,000 or backed by Treasuries. If that is where your short-term cash lives, you are not doing anything wrong. The rest of this is about squeezing more out of money with a slightly more defined timeline.
I Bonds: inflation insurance with a one-year lockbox
Series I savings bonds are bought directly from TreasuryDirect.gov, and their entire pitch is that the rate adjusts with inflation every six months. When inflation spiked, I Bonds briefly paid north of 9% and people lined up. That moment has passed, but the structure still does one thing nothing else does: it guarantees your purchasing power, not just your dollars.
The catches are real and you need to know them before you buy. You cannot touch the money for twelve months, full stop. Cash out before year five and you forfeit the last three months of interest. And you are capped at $10,000 per person per calendar year, which means I Bonds are a slow drip, not a place to dump a windfall. For a 30-something quietly building a two-year cushion, buying the $10K every January is a clean habit. For someone who needs $80,000 liquid next spring, they are nearly useless.
TIPS: the same inflation idea, sold differently
Treasury Inflation-Protected Securities chase the same goal as I Bonds — protecting you from inflation — but they trade like normal bonds. The principal adjusts with the consumer price index, and you can buy them in any size, either directly or through a fund like Vanguard's VTIP or Schwab's SCHP. No $10,000 ceiling, far more flexibility.
The trade-off is honest: TIPS prices move while you hold them. If interest rates climb, the market value of a TIPS fund can drop in the short run even though it is doing its inflation job over the long run. Buy individual TIPS and hold them to maturity and that price swing never touches you — you get the adjusted principal back as promised. Buy a TIPS fund and you accept some bobbing in exchange for never having to manage maturities yourself. Neither is wrong; they suit different temperaments.
The Treasury ladder: the one I'd actually build for a known date
If you know roughly when you need the money, a ladder of plain Treasury bills and notes is hard to beat. You buy Treasuries maturing at staggered dates — say three, six, and twelve months out — so a chunk of cash comes due on a schedule you control. Each rung pays the going Treasury rate, each one is backed by the full faith of the U.S. government, and the interest is exempt from state income tax, which quietly matters a lot in California or New York.
- Buy them through TreasuryDirect, or far more easily inside a Fidelity, Schwab, or Vanguard brokerage account where the secondary market and auto-roll features live.
- Match the longest rung to your actual need-by date so nothing important is ever locked past it.
- As each bill matures, either spend it or roll it into a new rung if your timeline stretched.
My honest pick for most men with a dated goal: build the Treasury ladder for the bulk of it, and run a small I Bond drip alongside as a separate inflation hedge you forget about. Skip TIPS unless you specifically want inflation protection in a size larger than I Bonds allow.
The mistake to avoid is the one that feels responsible: reaching for stocks because 4% feels too slow. Money you need in 2028 has no business riding the S&P 500, and the year it drops 20% the week before you need it, the 4% you scorned will look like the smartest decision you made.