Forget “Rent vs. Buy.” Ask These Two Questions Instead

Should you buy a house, or keep renting?

It’s one of those questions that never really goes away. Ask around and you’ll hear both sides shouted with total confidence: “Renting is throwing money away,” on one side, and “buying is the biggest financial trap of your life,” on the other.

Here’s the problem — neither of those camps is asking the right question. The buy-or-rent debate is a distraction from what actually determines whether the decision works out for you:

1. Are you secretly treating your home like an investment?
2. Do you actually know what your unrecoverable costs are?

Get clear on those two things and the “right” answer becomes obvious for your situation. Skip them, and you can end up regretting it whether you buy or don’t.

The trap of thinking of your house as an “investment”

The most common reason people give for buying is some version of “prices only go up” or “I’ll sell it later for a profit.” But a home you live in isn’t really an investment asset in the way a stock or index fund is — it’s closer to a very large, very illiquid way of paying for shelter.

Once you strip out inflation, long-run U.S. home price appreciation is usually far more modest than people assume, and a home also comes with a steady drip of costs the whole time you own it — costs that are easy to underestimate if you’ve never budgeted for them.

This is where a well-known wealth statistic gets misread. The Federal Reserve’s Survey of Consumer Finances consistently shows that homeowners have dramatically higher net worth than renters — homeowner households had a median net worth around $396,000–$430,000 in the most recent data, versus roughly $10,000 for renter households. That’s a 38-to-1, even 43-to-1 gap depending on the source, and it gets cited constantly to argue “buying makes you rich.”

But economists studying this same Fed data point out that it’s mostly correlation, not proof of causation: wealthier households are more likely to be able to afford a home in the first place, and people who were already disciplined savers are more likely to both own a home and have other assets. Homeownership and net worth run together partly because the same underlying income and habits produce both — not necessarily because buying a house is what made those households rich. Reading the causation backwards is exactly how people talk themselves into a purchase for the wrong reasons.

The costs you never get back

Owning a home isn’t just the mortgage payment. What actually matters is the money that goes out the door and never comes back — economists call these “unrecoverable costs.” The big ones:

• Property tax — a fixed annual bill tied to your home’s value, regardless of whether the market is up or down. U.S. property tax rates vary widely by state and county, roughly in the 0.5%–2%+ range of home value per year.
• Maintenance — the most underestimated cost of homeownership. Roofs, plumbing, furnaces, siding — something always needs fixing, and it rarely happens on schedule.
• Opportunity cost — the down payment, and the equity tied up in the home, isn’t earning you anything else. Had it stayed invested in the market instead, it could have compounded at long-run stock market returns (historically averaging somewhere around 7% annually after inflation).
• Interest cost — in the early years of a mortgage, most of each payment is interest, not principal.

A widely used rule of thumb, popularized by a Canadian portfolio manager Ben Felix but commonly applied to U.S. housing math as well, adds these up to roughly 5% of the home’s value per year in unrecoverable costs (about 1% property tax, 1% maintenance, 3% cost of capital). The rule was built during a period of low interest rates; with U.S. mortgage rates having spent much of the past few years well above where they were then, some versions of the same framework now put the figure closer to 7–8%.

Ben Felix’s original post on PWL Capital’s official blog (“Rent or Own Your Home? A Handy 5% Rule“)

The math is simple: take the home’s price, multiply by that percentage, and divide by 12. If comparable rent in the same area costs less than that number, renting is arguably the better deal financially — you’re paying less for the same unrecoverable cost, and your capital stays free to earn a return elsewhere. If rent costs more than that number, buying starts to look better. For a $500,000 home, that break-even point lands somewhere between roughly $2,100/month (at 5%) and $2,900–$3,300/month (at 7–8%).

The point isn’t to treat this as gospel — it’s a rough framework, not a precise answer — but it forces you to compare the right two numbers instead of the wrong ones. Comparing your mortgage payment to your rent is not a meaningful comparison; comparing unrecoverable costs is.

Questions to ask yourself before you buy

• Are you planning to stay in this home for at least 5, ideally 10+ years?
• Is there a real chance your job or life situation could force a move sooner?
• Can you comfortably absorb property tax and maintenance costs, even in a bad year?
• What return could that down payment realistically earn if it were invested instead?
• Is your real reason “everyone else is buying” or “prices will go up,” or is it “I want a stable place to live long-term”?

If your honest answer leans toward wanting investment returns, a home is probably the wrong vehicle for that goal — it’s illiquid, concentrated in a single asset and a single location, and loaded with carrying costs a stock portfolio doesn’t have. If your answer is “I want stability and I can afford the ongoing costs,” buying can be a perfectly rational choice — you’re just buying it as a place to live, not as a trade.

What about buying a rental property while you keep renting yourself?

This is where the discussion usually stops — but there’s a third option worth putting on the table: keep renting where you actually want to live, and buy a property somewhere else purely as a rental investment. This strategy has a name — “rentvesting.”

The logic is straightforward. If home prices where you want to live are out of reach (or just a bad deal by the 5–8% math above), but real estate in a more affordable U.S. market pencils out as a rental, you can buy there instead, have tenants’ rent cover most or all of the mortgage, and keep living where you actually want to live as a renter.

What this can get you:

• A lower entry price than buying in your own expensive city
• Rental income that offsets — or fully covers — the mortgage on the investment property
• Diversification: your housing decision and your investment decision aren’t forced into the same city or neighborhood
• Deductible expenses on the investment property (mortgage interest, maintenance, insurance, property management, depreciation) that ordinary homeowners can’t claim on their own residence
• Flexibility to move without selling anything, since you’re a tenant where you live

What it costs you:

• You’re paying twice at once — your own rent, plus every landlord-style expense on the investment property (mortgage, tax, maintenance, vacancy periods, repairs, insurance) — so cash flow needs real discipline
• You take on landlord responsibilities: tenant screening, repairs, vacancies, and the occasional evening plumbing call, on a property you may never even see in person
• You miss out on the U.S. capital gains exclusion available on a primary residence (up to $250,000 for single filers, $500,000 for married couples filing jointly, subject to ownership/use tests). A rental property doesn’t qualify, so a future sale can trigger a real capital gains bill — though a 1031 exchange can defer that tax if you roll the proceeds into another investment property
• You’re carrying two sets of market and interest-rate risk instead of one, and a downturn or a bad tenant can hit both your cash flow and your investment property’s value at the same time
• No home equity of your own building up in the city where you actually live — if that market runs up while you’re invested elsewhere, you’ve missed out on it

Rentvesting isn’t automatically better or worse than either straightforward renting or straightforward buying — it’s really a bet that you can find a rental market with better numbers than your own city, and that you’re willing to take on landlord duties for it. Run the same 5–8% unrecoverable-cost math on the investment property, subtract the rental income you’d realistically collect, and compare what’s left to what you’d have spent (or invested) as a straightforward renter. If the after-cash-flow numbers plus the tax/leverage benefits beat just renting and investing the difference in the market, it’s worth serious consideration. If they don’t — once you’ve honestly priced in vacancies, repairs, and your own time — plain renting-and-investing may still win.

A quick note for Canadian readers: the framework above translates directly, with one key difference. Canada doesn’t use a dollar-capped exclusion like the U.S. does — instead, the gain on your principal residence (the home you actually live in) is fully tax-exempt when you sell, with no cap. That exemption doesn’t apply to a rental property, so a rentvesting strategy in Canada means giving up a potentially larger tax shelter than in the U.S., where a married couple filing jointly still gets a $500,000 exclusion no matter which property they call home. Worth running the numbers with a Canadian tax advisor before assuming the math translates one-to-one.

The real question is clarity, not a universal answer

There’s no single correct answer to buy-vs-rent. In some markets and some life situations, owning wins. In others, renting wins — and in a growing number of cases, renting where you live while investing in real estate somewhere else wins.

What trips people up isn’t the math — it’s emotion, social pressure, and the assumption that “a house is always a good investment.” That assumption skips right past the unrecoverable costs and blurs the real reason someone is buying in the first place.

So it comes back to the same two questions:

1. Are you mistaking your home purchase for an investment?
2. Have you actually calculated your unrecoverable costs?

Answer those honestly and specifically, and whichever path you choose — buying, renting, or rentvesting — you’ll make it with a lot less regret.

This article is for general information only and isn’t personalized financial or tax advice. Run your own numbers based on your local market, mortgage rate, and tax situation before making a decision.

Fed Survey of Consumer Finances (Homeowner vs. Renter Net Worth Gap):

Federal Reserve Official SCF Data Visualization

Property Tax Rates (0.5%–2%+ Range):

Tax-Rates.org Property Tax by State Tables (or local state tax authority sites)

U.S. Capital Gains Exclusion ($250,000 / $500,000 Section 121):

Official IRS Topic 701 “Sale of Your Home”

Capital Gains Deferral via 1031 Exchange:

Official IRS Fact Sheet on Section 1031 Exchanges

Canada’s Fully Tax-Exempt Principal Residence Gain:

Official CRA Principal Residence & Real Estate Guide

Long-Run Market Real Returns:

Notes global historical real returns benchmarks (approx. 5.2% for stocks and 1.3% for real estate).