Rent vs Buy Calculator
Compare lifetime cost of renting vs buying a home with opportunity-cost-of-down-payment, appreciation, and tax treatment. NYT-style break-even year. Free.
Rent vs Buy Calculator
NYT-style total cost comparison. Includes the opportunity cost of locking up down payment + maintenance differential vs investing that capital instead. Mortgage tax-deduction savings and home-price appreciation included. Returns the cumulative cost over your horizon and which option wins.
How to Use the Rent vs Buy Calculator
Match the rental to the home
Use the rent of an EQUIVALENT property (same size, neighborhood, condition). The biggest tool-misuse is comparing a 2-bed apartment to a 4-bed house. Pull rent comps for the actual home you'd buy if it were a rental.
Pick a realistic horizon
The single biggest determinant. Buy almost always wins past 7-10 years; rent almost always wins under 5 years (transaction costs amortize too slowly). Plan to relocate in 3 years? Rent. Plan to stay 15+? Buy is usually mathematically + lifestyle obvious.
Use conservative appreciation
Long-run US home appreciation: 3-4% nominal. Don't assume the post-2020 bull run continues. Higher than 4-5% should require explicit reason (specific high-growth market data). Lower than 2% should be your default in markets with declining population or oversupply.
Read the price-to-rent ratio
Under 15 = strongly favors buying. 15-20 = mixed (lifestyle matters). 20-25 = neutral to renting. Over 25 = strongly favors renting (most US coastal cities + Singapore-style high-PTR markets fall here).
Rent vs Buy — The Math Most People Get Wrong
What the Naive Comparison Misses
The classic "mortgage payment vs rent" comparison massively distorts the decision. Mortgage payments are split between interest (mostly expense) and principal (mostly savings — buying back ownership of an asset). The naive comparison treats the entire mortgage as cost — equivalent to treating rent as if you got nothing in return. The honest comparison adds: home appreciation, mortgage tax-deductible interest, property tax + insurance + maintenance (which renters don't pay), HOA, the opportunity cost of locking up the down payment in housing, and transaction costs (typically 7-10% combined buy + sell). The NYT Buy-vs-Rent Calculator (Bostock & Stark 2014) is the canonical version of this comparison; this tool implements the same methodology.
The result over a 30-year horizon for a typical US home depends mainly on three variables: appreciation rate, horizon length, and price-to-rent ratio. At 3% appreciation, 7-year horizon, and PTR around 20, the two are roughly tied. Higher appreciation, longer horizon, or lower PTR tilt strongly toward buying. Lower appreciation, shorter horizon, or higher PTR tilt toward renting.
The Price-to-Rent Ratio Heuristic
Single best shortcut: divide home price by annual rent. Under 15 favors buying. 15-20 is mixed. 20-25 favors renting. Over 25 strongly favors renting unless you have non-financial reasons (kids' schools, stability, customization). In 2024, US national-average PTR is ~22 (up from 16 in 2010). Major metros: SF 35+, NYC 30+, Boston 28, LA 25, Chicago 18, Austin 21, Atlanta 20, Houston 16, Cleveland 12. The heuristic is the fastest way to assess whether a market is a buyer's or renter's market without the full calculation.
The "rule of 7 years" is the corollary: most US homes have a break-even point of about 5-7 years vs equivalent renting. If you'll stay less than that, the transaction costs (closing costs ~3% on buy + selling costs ~7% on sell, totaling ~10% of price) typically aren't recovered. If you'll stay longer, equity buildup + appreciation usually beats the renter's alternative even after opportunity cost.
"NYT Bostock-Stark 2014: the rent-vs-buy decision is almost never as obvious as either side claims. For a typical US home at 20× price-to-rent and 7-year hold, the difference between optimal-buy and optimal-rent outcomes is under 10% of total cost — often within the noise of the input assumptions."
Non-Financial Factors That Often Trump the Math
The pure-math comparison treats housing as an investment. But housing is also: schools you can't change without moving, the ability to customize, lifestyle flexibility, the psychological security of ownership (or freedom of renting), proximity to family. For young professionals who may relocate for career: renting almost always wins, even if the math says buy. For families with school-age kids in good districts: buying often wins regardless of math because moving costs are high in non-financial ways too. The calculator surfaces the financial answer; you supply the non-financial weighting. Don't let either side bully you with "math is the only thing" or "feelings are the only thing" — both matter and they interact.
10 Facts About US Rent vs Buy
The NYT Rent vs Buy calculator (2014) is the canonical version of this comparison — built by Mike Bostock and Shan Carter.
US national average price-to-rent ratio 2024: ~22 (up from 16 in 2010).
Under 15 favors buying; 15-20 mixed; 20-25 favors renting; over 25 strongly favors renting.
The "5-7 year rule": typical US home break-even vs equivalent renting is 5-7 years due to transaction costs.
US long-run home appreciation: ~3-4% nominal per year, roughly tracking inflation + 1-2%.
Transaction costs: ~3% on buy (closing), ~7% on sell (broker + transfer + small repairs).
Mortgage interest deduction: federally limited to interest on first USD 750K of mortgage debt (post-2018 TCJA).
SALT cap: USD 10K limit on state + local + property tax deduction reduces buying's tax advantage in high-tax states.
Major metro PTR ranges: SF 35+, NYC 30+, Boston 28, LA 25, Chicago 18, Houston 16, Cleveland 12.
US homeownership rate 2024: 65.6% — down from peak 69% in 2004; up from low 63% in 2016.
Frequently Asked Questions
- Three conditions tip buying ahead: (1) horizon 7+ years, (2) price-to-rent ratio under 20, (3) appreciation expectation 3%+. Miss any of these and the math gets close. Miss two and renting usually wins. The tool's verdict gives you the dollar difference at YOUR specific numbers.
- Home price divided by annual rent. A USD 400K home renting for USD 2K/month = PTR 16.7 (400K ÷ 24K). The fastest way to gauge whether a market favors buying or renting. Long-run US average is around 18; varies widely by metro.
- Transaction costs are roughly 10% of home price (3% to buy + 7% to sell). You need home appreciation + equity buildup to recover those costs. At 3-4% annual appreciation, it takes 3-4 years just to break even on transaction costs alone. Add the opportunity cost on locked-up down payment and the break-even stretches to 5-7 years. Short stays don't earn the time to amortize the up-front cost.
- Much less than pre-2018. The Tax Cuts and Jobs Act doubled the standard deduction (USD 29,200 joint in 2024), so most homeowners no longer itemize. Mortgage interest deduction now applies only to itemizers — typically high-income / high-cost-area buyers. Mortgage interest is also capped on loans up to USD 750K. Don't model this as a major benefit unless you'll itemize.
- Changes the calculation significantly. House-hacking (live in one unit, rent the rest in a 2-4 unit, or rent a room in a single-family) reduces effective housing cost dramatically. Converting to a pure rental after moving requires the property to make sense AS a rental at then-current rent — use the Rental Property Cash Flow Calculator. Many young investors buy primary homes with explicit "rent later" plans, which can shift the rent-vs-buy decision toward buying earlier.
- Don't time. Rates affect monthly cost but home prices typically move inversely — when rates drop, prices often rise as more buyers can qualify. The break-even rate move that justifies waiting depends on how much prices change in the meantime. Most retroactive analyses show "buy when ready, refinance when rates drop" beats "wait for low rates" because waiting often pays more in rent + missed appreciation than the rate savings.
- The calculator only handles dollars. Buying gives you stability, customization, schools you can plan around, no rent increases or landlord drama, and the psychological boost of ownership. Renting gives you mobility, no maintenance responsibility, often lower total cash outflow short-term, and freedom from property-market crashes. The financial verdict is rarely so lopsided that lifestyle considerations can't swing the decision. Run the math, then weight lifestyle.
- When housing costs (mortgage + tax + insurance + maintenance + utilities) consume more than 30-35% of gross income, leaving little for retirement, emergencies, lifestyle. Common in high-cost markets where buyers stretch to qualify. The 28/36 rule: PITI ≤ 28% of gross income, total debt ≤ 36%. Lenders may approve you for more — that's the maximum, not the recommended. Buying at the top of your approval often leads to "house poor" status that erodes long-term wealth despite the equity.
- Massively. Hawaii lowest at 0.28%, New Jersey highest at 2.49% (per Tax Foundation 2024). Cali Prop 13 caps annual increases at 2%, making long-time owners pay much less than recent buyers in the same neighborhood. Texas has no state income tax but high property tax (1.7-2.0%). Florida + Tennessee + NV: low state income + moderate property tax. Adjust the tool's "property tax rate" input to your specific state + locality — a 1% vs 2% difference on a USD 500K home is USD 5,000/year, material over a 10-year hold.
- Substantially. Foreign buyer mortgages typically require 30-40% down at rates 1-2% higher than residents. No mortgage interest deduction unless you have US-source income to deduct against. FIRPTA withholding 15% on sale. Property tax + insurance same as residents. For visa-holders living + working in the US, treatment is identical to citizens for primary residence. For pure investment buyers based abroad, the math leans more toward renting OR buying through LLC structures with cross-border tax planning.
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