What "Rent vs Buy" Actually Means
The rent vs buy question isn't really "is owning better than renting?" — it's "over my specific time horizon, in my specific market, does the total economic cost of owning come out lower than the total economic cost of renting?" That total includes a long list of items that show up nowhere on a Zillow listing: down payment opportunity cost, property tax (which Tax Foundation data shows ranges from 0.27% in Hawaii to 2.23% in New Jersey by effective rate), maintenance averaging roughly 1% of home value per year per the Joint Center for Housing Studies at Harvard, and the 8%–10% transaction friction of selling. The New York Times built its widely-cited "Is It Better to Rent or Buy?" calculator around exactly this framing, and the methodology has become the de facto standard for honest comparisons.
The most-quoted heuristic — "buy if you'll stay at least five years" — is a useful starting point, not a rule. In high-cost coastal markets with property taxes above 1.5% and price-to-rent ratios above 25, the breakeven often pushes to year 8 or beyond. In Sun Belt markets with low taxes and price-to-rent ratios below 18, breakeven can arrive in year 3. The calculator above lets you see your personal breakeven year directly.
The Formula
This calculator computes net buy cost as gross outlays minus equity built and minus appreciation, then compares it against the cumulative rent paid (compounded by your assumed annual increase).
Net Buy Cost = Down Payment + Mortgage Paid + Tax + HOA/Ins + Maintenance − Appreciation − Equity Built
Total Rent Cost = Σ (monthly rent × 12), with monthly rent compounded by the annual increase rate each year
Mortgage payment: M = P × r(1+r)n ÷ ((1+r)n − 1)
Two quantities deserve special care. Appreciation is the projected increase in home value (default 3%/year, close to the long-run US average per the FHFA House Price Index). Equity built is the principal portion of mortgage payments — small in early years, growing as the loan amortizes. Both are subtracted from gross buy cost because they represent value you retain (or recover) when you sell.
How to Use Step-by-Step
- Enter the home price, down payment percentage, mortgage rate, and loan term.
- Enter your state's effective property tax rate (Tax Foundation publishes the median). Add HOA + homeowners insurance per month.
- Use the default 1% maintenance, or adjust based on home age and condition (older homes often justify 1.5%–2%).
- Enter your current monthly rent and an annual rent increase assumption (3% is the long-run US norm; high-growth metros run 4%–6%).
- Set "years to stay" to your honest expected horizon — be conservative; people overestimate how long they'll stay.
- Read both the cumulative comparison and the breakeven year. If breakeven exceeds your expected stay, renting wins.
Worked Examples
Example 1 — Mid-cost market, 7-year horizon
$400,000 home, 20% down, 6.5% / 30 years, 1.2% tax, $200 HOA+insurance, 1% maintenance vs $2,000/month rent with 3% increases for 7 years. Buy net ≈ $222,000; rent total ≈ $186,000. Renting saves about $36,000 at this horizon; breakeven typically lands around year 9–10.
Example 2 — High-tax state, short stay
Same house in New Jersey: 2.2% property tax instead of 1.2%, everything else equal. The extra ~$30,000 in tax over 7 years pushes breakeven to year 13+. Renting wins decisively for any stay under a decade, even though the monthly mortgage looks competitive with rent.
Example 3 — Low-cost Sun Belt, long stay
$280,000 home in a Texas suburb (no income tax, but property tax 1.8%), 10% down, 6.5%, $150 HOA, $1,800/month rent with 4% increases, 10-year horizon. Equity build and appreciation add up faster on a smaller base; breakeven often arrives by year 4–5, and the 10-year buy cost typically beats renting by $40,000+.
Hidden Costs Most Buyers Underestimate
| Cost | Typical magnitude | Why it matters |
|---|---|---|
| Closing costs (buy) | 2%–5% of price | $8,000–$20,000 on a $400K home, paid upfront on top of down payment. |
| Selling costs | 5%–8% of sale price | Realtor commission, transfer tax, prep work. Reduces appreciation gain on exit. |
| Maintenance | ~1% of value/year | Harvard JCHS finds owner-reported costs cluster around 1%–2% annually for a typical single-family home. |
| Property tax | 0.3%–2.5%/year | Tax Foundation data: median NJ effective rate is 2.23%; HI is 0.27%. State choice swaps decades of breakeven. |
| Opportunity cost on down payment | 5%–7%/year | $80,000 invested in a 60/40 portfolio compounding at 6% becomes ~$143,000 in 10 years — a real cost of buying. |
| PMI (if < 20% down) | 0.3%–1.5%/year | $80–$200/month on a $400K loan; typically removable at 20% equity on conventional loans. |
This calculator omits closing costs, selling costs, opportunity cost on the down payment, and tax deductions for simplicity. Including them would push breakeven later in nearly every scenario — making the "5-year rule" closer to a 7-year rule once full transaction costs are loaded.
When Buying Wins vs When Renting Wins
Buying tends to win when your horizon is 7+ years, the local price-to-rent ratio is below 20, property taxes are below 1.2%, and the mortgage payment is at or below comparable rent. In those conditions equity build plus appreciation typically eclipse rent within 5–7 years. Lower-cost Sun Belt and Midwest metros — Houston, Atlanta, Indianapolis, Columbus — have historically offered the fastest breakevens because the price-to-rent ratio sits in the low teens and tax rates are moderate.
Renting tends to win when your horizon is under 5 years, the price-to-rent ratio exceeds 22, you're in a high-tax state, your career or family situation is uncertain, or local rent has been rising slower than home prices (a pattern Harvard JCHS has documented in many superstar metros like San Francisco, Seattle, and Boston). In these markets the down-payment opportunity cost alone — invested in stocks at 6%–7% real — often exceeds the equity-plus-appreciation gain from owning.
The CFPB's buying guidance emphasizes that the right answer is personal — financial flexibility and life-stage fit often matter more than the spreadsheet difference. Couples planning to have children may rightly prioritize school district stability over a 2-year financial advantage to renting. Workers in volatile industries may rightly prioritize the 30-day exit option of a lease over slightly lower lifetime cost from owning. The calculator gives you the math; only you can weigh the lifestyle and risk preferences that turn the math into a decision.
Common Misconceptions
- "Renting is throwing money away." So is paying mortgage interest, property taxes, insurance, and maintenance — none of which build equity. The honest comparison is total cost vs total cost, not principal-vs-rent.
- "Home values always go up." The FHFA HPI shows nominal national declines from 2007–2012 of roughly 20%, with metro-level drops exceeding 50% in some Sun Belt cities. Real (inflation-adjusted) appreciation has averaged closer to 1%–2% over the long run, not the eye-popping nominal headline numbers.
- "The mortgage interest deduction makes buying cheaper." Since the 2017 Tax Cuts and Jobs Act doubled the standard deduction, only roughly 10% of taxpayers itemize. For most middle-income owners the deduction is now worth zero.
- "My mortgage payment is fixed forever." Principal and interest are fixed on a fixed-rate mortgage, but property taxes typically rise with assessed value, insurance premiums have risen 20%+ in many states recently, and maintenance grows with the home's value. Total housing cost is not stable.
- "Rent always rises faster than ownership cost." Sometimes — but not in markets with high tax growth and aging housing stock. Several recent JCHS reports document metro markets where total ownership cost outpaced rent inflation.
Frequently Asked Questions
How long do I need to stay to make buying worth it?
Five years is the popular rule of thumb, but the calculator shows your specific breakeven. In high-tax states or expensive coastal markets, breakeven often pushes to 8–10 years. In low-tax, lower-priced markets it can arrive in year 3–4.
What is the price-to-rent ratio?
Home price divided by annual rent for a comparable property. Below 15: buying clearly wins. 15–20: buying usually wins. 20–25: depends on horizon and local taxes. Above 25: renting often wins even over a long stay. NYT's rent-vs-buy methodology popularized this metric.
Does this include closing costs?
No. The model deliberately excludes closing costs (2%–5% on purchase) and selling costs (5%–8% on exit) for simplicity. Including them would push breakeven 1–2 years later. If you want a stricter test, add roughly 8% of the home price as a one-time cost on top of the displayed buy total.
What about the opportunity cost of my down payment?
This calculator doesn't simulate the alternate scenario where the down payment is invested in stocks or bonds. To approximate it, mentally add ~5%–7% per year compounding on the down payment to the rent side. For a 20% down on a $400,000 home over 10 years at 6%, that's roughly $63,000 the renter could have earned.
What appreciation rate is realistic?
The default 3% nominal is close to the long-term FHFA House Price Index national average. High-growth metros have run higher recently (5%–8%), but that's not sustainable. Use 3% for a base case and stress-test with 0% to see how the decision holds up if home values stagnate.
Is my data stored?
No. CalcNow runs every calculation entirely in your browser. Your home price, rent, and personal inputs are never sent to a server, never logged, and never stored after you close the tab.
This tool provides estimates for educational purposes only and does not constitute financial or tax advice.
References
- Joint Center for Housing Studies of Harvard University. The State of the Nation's Housing, annual report on homeownership costs, maintenance, and rental affordability.
- Federal Housing Finance Agency. FHFA House Price Index, quarterly data on nominal US home price changes since 1975.
- The Upshot (New York Times). Is It Better to Rent or Buy? Methodology and interactive calculator, originally developed by David Leonhardt.
- Tax Foundation. Property Taxes by State, annual ranking of effective property tax rates.
- Consumer Financial Protection Bureau. Buying a House, guidance on closing costs, total cost of homeownership, and mortgage decisions.