Do You Really Have to Buy a Home?
No. Renting is a permanent, respectable answer, and for a mobile high earner in an expensive metro it is frequently the better one. What follows is not another argument that a house is consumption not an investment — section “Consumption or Investment? Get the Definition Right” settled that, and section “The Investment Showdown: Property Growth vs. Stock Market Gains” put numbers on the return gap. It is the answer to a narrower question: when the popular financial literature is unusually unanimous about something, what exactly is it unanimous about, and which parts of it are worth acting on?
The unanimity is real and worth knowing about. Bernstein, Sethi, Collins, Carlson, Olen and Pollack, Wecks, Lazaroff, McCormick, and Vento disagree about nearly everything else in personal finance and converge here:146,147,148,149 treat the roof over your head as shelter you buy, not an investment position you take. Robert Kiyosaki built a career on the most aggressive version of it — your house is not an asset — a claim his own publisher notes “ignited a firestorm of criticism and ridicule” before 2008 made it look prescient.150 J.L. Collins puts the same point without the theatrics: houses are “an expensive indulgence, not an investment”.151
Three of those authors contribute something the consensus by itself does not.
A price ceiling you can actually apply. Bernstein converts the argument into a test. Treat the shelter a house provides as its dividend — the imputed rent you would otherwise pay a landlord — and a purchase price is just a multiple of that dividend, exactly as a stock price is a multiple of earnings:152
A good rule of thumb is to never, ever pay more than 15 years fair rental value for any residence. This computes out to a 6.7 percent (1/15th) gross rental dividend, or 3.7 percent after taxes, insurance, and maintenance, which is about what you might expect from a mixed portfolio of stocks and bonds.
Fifteen years of rent is a ceiling, not a target. Run it before you tour anything: a house renting for $4,000 a month is worth at most $720,000 to you, and every dollar above that is a bet on appreciation instead of a purchase of shelter. The same arithmetic drives the faster screen in section “Making the Call” and the full discounted comparison in section “The NPV Framework: A Rigorous Buy-vs-Rent Comparison”.
The concentration nobody prices. Sethi asks the question that exposes it: if you are paying $2,000 a month on a mortgage, are you putting $6,000 a month somewhere else to balance it?153 Almost nobody is. A leveraged, undiversified, illiquid position in one building on one street in one labor market is not merely a large holding — it is usually the holding, and it correlates with the local economy that also pays your salary (section “Underwriting Your Own Income”).
Price it as a security and you would decline. Wecks proposes the cleanest reframe in the literature.154 Suppose someone offered you an instrument returning roughly the rate of inflation, requiring you to pay nearly double its face value across thirty years of financing, demanding several thousand dollars of maintenance every few years just to hold its value, and repossessed in full if you ever stop paying. As a security it is unbuyable. As shelter it may still be exactly what you want — which is the whole point, and the reason to stop calling it an investment.
The other side, stated fairly. Carlson supplies the counterweight the consensus tends to skip: a home pays a psychic income155 — your own neighborhood, your own school district, permission to renovate, and roots in a place nobody can evict you from. It also forces equity accumulation on people who would not otherwise save, which is a real benefit for real households even though it is a behavioral effect, not a return. Neither shows up in the arithmetic. Both are legitimate reasons to buy. What neither does is convert the purchase into an investment, and the failure mode this whole section guards against is buying more house than you want on the theory that the excess is invested instead of spent.