The old rule of thumb—rent for five years, then buy—is quietly falling apart in most US metros.
With mortgage rates hovering near 6.5% and home prices still climbing in many markets, the break-even horizon on a typical purchase has stretched past seven years in dozens of cities.
That matters because the average American moves every eight to nine years, leaving a shrinking margin for error.
The math itself isn't complicated, but the inputs have gotten brutal.
A $400,000 home with 20% down at today's rates runs roughly $2,400 a month before taxes, insurance, and maintenance—often $3,000 or more all-in.
Renting that same house might cost $2,200.
The gap doesn't close through appreciation alone; it closes through equity buildup, tax deductions, and rent inflation, all of which take years to compound.
What most calculators miss is the opportunity cost of the down payment.
Dropping $80,000 into a home means that money stops earning in a high-yield savings account paying north of 4%.
Over five years, that forgone interest alone can exceed $17,000—enough to flip the verdict in favor of renting in slower-appreciating markets like Chicago, Houston, or Phoenix.
Homeowners should budget 1% to 2% of a home's value annually for repairs, which on a $400,000 house means $4,000 to $8,000 a year.
A new roof, a dead HVAC unit, or a plumbing emergency can wipe out the entire financial advantage of owning in a single season.
Renters hand those bills to someone else.
The honest answer is that the calculator matters more than the headline.
In expensive coastal metros where price-to-rent ratios top 30, renting and investing the difference wins more often than people admit.
In Midwest and Sun Belt markets with ratios under 18, buying still pencils out within three to four years—especially if you plan to stay put.
Anyone running the numbers today should test three scenarios: staying five years, staying ten, and a worst-case sale in a flat market.
If buying only wins in the ten-year case and you're not certain you'll stay that long, the flexibility of renting has real dollar value—not just emotional value.
Our take: the rent-versus-buy debate has become too personalized for blanket advice.
Run the calculator with your actual numbers, your actual timeline, and a realistic maintenance budget, then trust the result over the folklore.
Final Thoughts
In 2025, the math rewards patience more than it rewards urgency.