Rent vs Buy in 2026: The Math Has Changed — Here's How to Run the Numbers for Your City

The rent-vs-buy calculation used to be simple. If your monthly mortgage payment was close to your rent, buying was usually the better deal because you were building equity. That math broke in 2022-2024 when mortgage rates doubled and home prices stayed elevated. Now, with rates dipping below 6% and inventory finally rising, the equation is shifting again — but not uniformly. In some cities, buying is a clear win. In others, renting is still smarter by a wide margin.

The Price-to-Rent Ratio: Your Starting Point

The simplest way to compare renting and buying is the price-to-rent ratio. Take the purchase price of a home and divide it by the annual rent for a comparable property. A ratio below 15 generally favors buying. A ratio above 20 generally favors renting. Between 15 and 20 is a gray zone where personal factors (how long you'll stay, tax situation, lifestyle preferences) tip the balance.

In April 2026, the national median price-to-rent ratio is approximately 18 — right in the gray zone. But national averages are meaningless for individual decisions. San Francisco's ratio is 30+. Dallas is around 14. Miami is 22. Nashville is 16. The city you live in matters far more than the national trend.

The Full Cost of Owning (It's More Than the Mortgage)

New buyers consistently underestimate the true cost of homeownership. Your mortgage payment is just the beginning. Add property taxes (1-2.5% of home value annually, depending on state), homeowners insurance ($1,500-$3,000/year and rising fast), maintenance and repairs (budget 1-2% of home value per year), HOA fees if applicable ($200-$600/month in many communities), and PMI if your down payment is less than 20% ($100-$300/month).

On a $400,000 home with 10% down at 5.8%, your monthly mortgage payment is about $2,110. Add taxes ($500/month), insurance ($200/month), maintenance ($400/month), and PMI ($180/month), and your true monthly cost is $3,390. If you can rent a comparable home for $2,200, the $1,190 monthly difference invested in the stock market at 8% annual returns would grow to over $200,000 in 10 years. That's the opportunity cost most buy-vs-rent calculators ignore.

The Hidden Advantages of Buying

The math above makes renting look great. But it ignores several factors that tilt toward buying. First, mortgage payments are fixed (on a 30-year fixed rate) while rents increase every year — typically 3-5% annually. After 10 years, your mortgage payment is the same while your hypothetical rent has increased 35-60%. Second, mortgage interest and property taxes are tax-deductible if you itemize, effectively reducing your cost by your marginal tax rate. Third, you're building equity with every payment — forced savings that many people wouldn't achieve otherwise.

There's also the leverage factor. A 10% down payment gives you 10:1 leverage on the property. If home prices appreciate 3% per year, your equity grows at 30% per year on your initial investment. No other mainstream investment offers this kind of leveraged return with such favorable terms (low interest rates, 30-year amortization, tax deductions).

The 5-Year Rule

The single most important variable in the rent-vs-buy decision is how long you plan to stay. Buying has significant transaction costs: 2-5% in closing costs when you buy, and 5-6% in agent commissions when you sell. On a $400,000 home, that's $28,000-$44,000 in round-trip costs. You need at least 5 years of appreciation and equity building to overcome these costs and come out ahead versus renting.

If you're confident you'll stay 7+ years, buying almost always wins in the long run. If you might move in 2-3 years, renting is almost always better. The 3-5 year range is where the calculation gets nuanced and depends heavily on local market conditions, your tax situation, and your personal financial goals.

How to Run the Numbers for Your Situation

Use the New York Times rent-vs-buy calculator (one of the best free tools available) or the Nerdwallet equivalent. Input your specific numbers: local home prices, local rents, your down payment, your tax bracket, expected appreciation rate, and how long you plan to stay. The output will tell you the 'breakeven rent' — the monthly rent below which renting is cheaper, and above which buying is cheaper.

Run the calculation with conservative assumptions. Use 2-3% annual appreciation (not the 10%+ of 2020-2022). Use your actual tax bracket, not the highest one. Include all ownership costs, not just the mortgage. If buying still wins with conservative inputs, it's probably a good decision. If it only wins with optimistic assumptions, renting gives you more flexibility and less risk.