Every few weeks someone asks me whether they should wait for prices to drop before buying their first home. I’ve mostly stopped answering that question directly, because it’s usually the wrong question. Nobody – including every economist with a Substack – knows where prices go next. What you can know is the math of buying versus renting in your specific market, at today’s prices. That’s a solvable problem, and the answer is honest: sometimes buying wins at high prices, sometimes renting wins, and the deciding inputs are knowable in an afternoon.
Why the prediction game is a trap
First, the framing. People who “waited for the crash” have been waiting through some of the fastest home-price runs on record, and people who bought at every “obvious top” have often been fine, because a house you live in for ten years is mostly insulated from the price you paid. What actually matters for a primary residence isn’t next year’s price – it’s whether owning that specific house beats renting an equivalent one over the years you’ll stay. Prediction is a casino; the rent-vs-own math is a spreadsheet. Do the spreadsheet.
Tool one: the price-to-rent ratio
The quickest screen in real estate is the price-to-rent ratio: the price of a home divided by the annual rent of a comparable one. Worked example: a $400,000 house versus renting a comparable one at $2,000 a month ($24,000 a year). 400,000 / 24,000 = 16.7.
The rough interpretation, as a rule of thumb rather than a law: ratios below about 15 tend to favor buying (prices low relative to rent), ratios above about 20 tend to favor renting (prices high relative to rent), and in between it’s genuinely a judgment call that hinges on how long you’ll stay. A ratio near 17 – our example – is the muddy middle, which is exactly where most expensive markets sit right now. Run the ratio on three or four real listings versus their rental equivalents and you’ll know which regime your market is in.
Tool two: the real cost stack of owning
The “rent is throwing money away” line deserves an autopsy, because it hides what ownership throws away too. Using the same $400,000 house with $380,000 financed at 6.5% – the setup I work through in detail in the house hacking math post – here’s the first-year money that goes to nobody’s equity:
- Interest: roughly $380,000 x 6.5% = about $24,700 a year at the start, call it $2,058 a month (the actual year-one number runs slightly lower as principal declines, but early mortgage payments are mostly interest)
- Property taxes: ~$400 a month at 1.2% of value
- Insurance: ~$150 a month
- Maintenance: ~$333 a month at the 1%-of-value rule
That’s roughly $2,940 a month of true carrying cost – before a dollar of principal, which is savings, not expense. Now compare it to the $2,000 rent in the same example. In this scenario, renting the equivalent house is cheaper by about $900 a month, and the gap is the price you pay for owning: the option value of a fixed payment, the forced savings, and the possibility the asset appreciates. None of those are free, and none of them are guaranteed. When prices are high relative to rents, this is the arithmetic that has to win the argument, not a feeling about “building equity.”
To be fair in the other direction: principal paydown is real savings. In that example, roughly $340 of the first month’s payment is principal – forced saving that compounds for you. If you’d otherwise spend the difference, owning’s forced discipline is worth a lot. If you’d otherwise invest the difference, the comparison gets closer and depends on returns nobody can promise. I’m not an advisor, and this is exactly the kind of tradeoff where an honest “it depends” is the truthful answer.
Tool three: transaction drag
The quiet killer of marginal home purchases is the round-trip cost. Buying costs you closing costs on the way in – commonly 2-3% of the price, so $8,000-12,000 on our $400,000 example. Selling later costs more: agent commissions plus transfer costs commonly run 6-8% on the way out, so $24,000-32,000. Add it up and moving in and out of this house costs on the order of $32,000-44,000 before any of the living happened.
Now run the break-even: if owning saves you (or costs you) $200 a month relative to renting, you’d need 160-220 months – 13 to 18 years – just to amortize the transaction costs. If the monthly gap is larger, say $900 in your favor on a purchase, the transaction drag amortizes in about 8-12 years at the low end of the gap… you get the idea: the shorter your likely stay, the more the transaction costs dominate. That’s why the single most useful question in rent-vs-own isn’t about prices at all – it’s “how long am I actually staying?” Under roughly five years, buying rarely pencils out. Over ten, the transaction costs wash out and the math turns mostly on carrying costs.
What renting actually buys you
Let me defend renting for a paragraph, because it’s chronically undersold. Rent is the maximum you’ll pay this month; a mortgage is the minimum – taxes reassess, roofs happen, water heaters die at the worst time. Renting also buys mobility (the ability to chase a better job or cheaper city without listing, showing, and paying commission) and it buys optionality during uncertain times. There’s real financial value in not being forced to sell a house at a bad moment, which is a risk every owner carries whether they think about it or not. If you’re early in your income curve, uncertain about your city, or saving aggressively for a down payment, renting is the financially sound choice for a while – that’s not a failure, it’s positioning.
So should you buy while prices are high?
My honest decision list, in order:
- Run the price-to-rent ratio for your market. Under ~15 leans buy; over ~20 leans rent; in between, keep going.
- Estimate your real stay. Under 5 years: strongly lean rent. Over 10: the transaction drag stops mattering much.
- Compare true monthly costs, not payment vs rent. Interest + taxes + insurance + maintenance vs rent. If owning costs much more per month, you’re paying a premium for stability – know the premium.
- Stress-test your stay. Would a job change, family change, or a market dip force a sale? If yes, the option value of renting is high right now.
- If you buy, buy the boring house you can afford on one income, with the rate structure you can live with – and check the upfront-rate tradeoffs in the mortgage points post before signing anything.
One honest hedge: markets move, rates move, and every rule of thumb above is a heuristic, not a law. This is a framework for thinking, not a prediction, and it’s not financial advice.
Next step: tonight, pull three real numbers for your market – a realistic purchase price, the rent for a comparable place, and current 30-year rates – and compute your own price-to-rent ratio and monthly cost gap. The answer that comes out of your own numbers will be worth more than every opinion on the internet, including mine. And if the numbers scare you toward renting for now, read house hacking vs renting an apartment – there’s a middle path where renting comes with a plan attached.
