An 80-Year-Old Just Sold Her House: Where Does the Cash Go?

Saw a post on r/personalfinance this week that perfectly highlights the gap between textbook finance and reality. A guy’s 80-year-old mother-in-law just sold her house, moved to a 55+ apartment complex, and is sitting on a pile of cash. She needs to know what to do with it. The comments section, predictably, was a mess.

Half the replies screamed “VTSAX!” and the other half yelled “ER visit will bankrupt her, buy an annuity!” Both are mostly wrong. Here is how you actually handle this.

The math of an 80-year-old #

Let’s look at the life expectancy table. At 80, median life expectancy is roughly 9.5 more years. If she is healthy, she might live to 95. If she has stage four cancer, she has 12 months. The Reddit post conveniently left out her health status, which is step one for any asset allocation at that age.

If you have a 10-year time horizon, your money needs to outpace inflation and survive a market crash. It does not need to compound aggressively.

Put down the index fund kool-aid #

The standard boglehead advice on r/personalfinance is to shovel everything into a total stock market index fund. That is terrible advice here.

At 80, she cannot afford a 40% drawdown. If the market tanks tomorrow—like it did in 2008 or March 2020—and she is pulling out $4,000 a month to cover rent and property taxes at the 55+ complex, she is crystalizing massive losses. She will bleed out before the market recovers. Sequence of returns risk is a real killer. It’s the same reason you don’t run database backups without a restore test; you only realize it’s broken when you actually need it.

The “I might need a nursing home” dilemma #

Here is where the thread actually got interesting. A user pointed out that if she ever needs an extended nursing home stay, Medicaid will look back five years.

If she parks this money in a brokerage account, it is fair game for Medicaid spend-down if she ever needs state assistance. But moving it to an irrevocable trust now means the five-year clawback clock starts ticking. If she passes or needs care before that five-year window is up, the state can still grab it.

I haven’t tested the exact mechanics of every state’s Medicaid lookback, and your mileage may vary wildly depending on jurisdiction. The community is genuinely split on whether the trust route is worth the legal fees here. If she is healthy, paying a $3,000 estate attorney to set up the trust might be the smartest move she ever makes. If her health is fragile, it is wasted money.

The actual allocation #

Here is what I would do, and what I told my own mother in a similar situation:

Keep 12 months of living expenses in a High-Yield Savings Account. Right now, you can grab 4.5% at Ally or Marcus with zero risk. That is her “oh crap” slush fund for new roofs, property taxes, or sudden medical bills.

Next, she needs an immediate annuity. Yes, annuities are usually garbage wrapped in high fees. But a Single Premium Immediate Annuity (SPIA) is different. You hand an insurance company $100,000, and they pay you $700 a month for the rest of your life. It’s basically DIY longevity insurance. It removes sequence of returns risk entirely because the market can crash 90% and she still gets her check.

Finally, if the home sale left her with excess cash after the HYSA and the annuity, park the rest in a 60/40 split using Vanguard’s BNDW and VTI. That sat at a 4.2% blended yield last year. If it halved tomorrow, she still has the HYSA buffer and the annuity checks to keep the lights on.

Don’t overcomplicate this. She is 80. She wants to see her grandkids and not stress about a stock ticker. Build the floor, protect the ceiling, and let the middle do whatever it wants.