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Rent vs Buy Calculator
Discover whether renting or buying makes more financial sense for your timeline. Compares total unrecoverable housing costs, down payment opportunity cost, and equity accumulation side-by-side.
Quick Answer: Whether it is better to rent or buy depends primarily on how long you plan to live in the home (your time horizon) and the total "unrecoverable costs" of each option. When you rent, your unrecoverable cost is 100% of your rent plus renters insurance. When you buy, unrecoverable costs include mortgage interest, property taxes (national benchmark ~1.10%), homeowners insurance (~0.50%), ongoing maintenance (~1.0% annually), HOA fees, buying and selling closing costs (8% to 10% round-trip), and the opportunity cost of investing your down payment in index funds (~5% real return). Over short horizons (under 4 to 6 years), renting is almost always cheaper because transaction costs exceed initial equity accumulation. Over longer horizons (7+ years), home price appreciation and mortgage principal paydown typically make buying significantly wealthier.
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Last reviewed: October 2026
Calculation Methodology: Rent vs Buy Calculator
Mathematical Formula
Net Cost to Buy = Total Interest + Taxes + Insurance + Maintenance + HOA + Closing Costs + Opportunity Cost - Equity Gained
1. Rent Cumulative Cost: Geometric series sum of escalating monthly rent × 12 × (1 + g)t plus renters insurance.
2. Buying Unrecoverable Outflows: Mortgage interest paid over N years + escalating property taxes + homeowners insurance + 1% annual maintenance + HOA fees.
3. Transaction Friction: Purchase closing costs (~3% upfront) plus future seller closing costs and agent commissions (~6% at sale).
4. Opportunity Cost: Down Payment & upfront closing costs compounded at the alternative investment return rate: (Initial Cash) × ((1 + r)N − 1).
5. Equity & Appreciation Offset: Future appreciated home value minus remaining mortgage principal balance is credited back against gross outflows.
6. Breakeven Year: The exact year where Cumulative Net Cost to Buy drops below Cumulative Rent Cost.
True Cost of Capital & Housing Methodology
- Unrecoverable Cost Framework (The 5% Rule): Developed by quantitative wealth researchers, this rule demonstrates that ~5% of a home's value is consumed every year by non-equity costs: ~3% to 4% in debt cost of capital/interest, ~1% in property taxes, and ~1% in physical maintenance and depreciation.
- Opportunity Cost Principle: Sinking $80,000 into a down payment means those dollars cannot compound in a broad market index fund. Over 5 years at 5% net annual return, $80,000 yields $22,102.53 in forgone investment growth.
- Amortization Asymmetry: In the first 5 to 7 years of a 30-year fixed loan at ~7.40%, over 80% of each monthly payment goes strictly toward bank interest, not building homeowner equity.
Disclaimer: This model provides financial comparison estimates. Real estate market performance, regional tax assessments, and personal lifestyle preferences will vary. Figures are based on 2026 national benchmarks.
Verified Worked Example (Benchmark)
Primary Mathematical Verification Benchmarks:
Benchmark A — Cumulative Rent Series ($2,000/mo, 3.0% Annual Inflation, 5 Years):
Year 1: $2,000 × 12 = $24,000.00.
Year 2: $24,000 × 1.03 = $24,720.00.
Year 3: $24,720 × 1.03 = $25,461.60.
Year 4: $25,461.60 × 1.03 = $26,225.45.
Year 5: $26,225.45 × 1.03 = $27,012.21.
Total 5-Year Rent: $127,419.26 (Plus $900 renters insurance @ $15/mo = $128,319.26).
Year 1: $2,000 × 12 = $24,000.00.
Year 2: $24,000 × 1.03 = $24,720.00.
Year 3: $24,720 × 1.03 = $25,461.60.
Year 4: $25,461.60 × 1.03 = $26,225.45.
Year 5: $26,225.45 × 1.03 = $27,012.21.
Total 5-Year Rent: $127,419.26 (Plus $900 renters insurance @ $15/mo = $128,319.26).
Benchmark B — Down Payment Opportunity Cost ($80,000 Cash, 5.0% Return, 5 Years):
Formula: Cash × ((1 + 0.05)5 − 1).
Multiplier: 1.055 − 1 = 1.27628156 − 1 = 0.27628156.
5-Year Opportunity Cost: $80,000 × 0.27628156 = $22,102.53.
Formula: Cash × ((1 + 0.05)5 − 1).
Multiplier: 1.055 − 1 = 1.27628156 − 1 = 0.27628156.
5-Year Opportunity Cost: $80,000 × 0.27628156 = $22,102.53.
Benchmark C — 5-Year Mortgage Amortization ($400,000 Home, 20% Down, 7.40% 30-Year Fixed):
Loan Principal: $320,000.00 · Monthly P&I: $2,215.62.
Total Payments (60 months): $132,937.20.
Principal Paid Off: $17,526.45 · Interest Paid to Bank: $115,410.75.
Remaining Loan Balance at End of Year 5: $302,473.55.
Loan Principal: $320,000.00 · Monthly P&I: $2,215.62.
Total Payments (60 months): $132,937.20.
Principal Paid Off: $17,526.45 · Interest Paid to Bank: $115,410.75.
Remaining Loan Balance at End of Year 5: $302,473.55.
Benchmark D — Zero-Friction 5-Year Amortization Purity Test:
Zero-friction baseline: appreciation 0%, investment return 0%, property tax 0%, insurance 0%, maintenance 0%, HOA $0, purchase closing 0%, selling costs 0%.
Loan parameters: $400,000 purchase price, 20% down ($80,000 down, $320,000 loan) at 6.50% 30-year fixed over 5 years (60 payments).
Monthly P&I payment: $2,022.62 · Remaining loan balance after 60 payments: $299,555.13.
Principal amortized: $20,444.87 · Total interest paid to lender: $100,912.19.
Buy Net Cost: $100,912.19 (precisely equals the total interest paid over 60 payments).
Zero-friction baseline: appreciation 0%, investment return 0%, property tax 0%, insurance 0%, maintenance 0%, HOA $0, purchase closing 0%, selling costs 0%.
Loan parameters: $400,000 purchase price, 20% down ($80,000 down, $320,000 loan) at 6.50% 30-year fixed over 5 years (60 payments).
Monthly P&I payment: $2,022.62 · Remaining loan balance after 60 payments: $299,555.13.
Principal amortized: $20,444.87 · Total interest paid to lender: $100,912.19.
Buy Net Cost: $100,912.19 (precisely equals the total interest paid over 60 payments).
Primary Statutory Sources & Authorities
- Freddie Mac Primary Mortgage Market Survey (PMMS) — National 30-year and 15-year fixed mortgage interest rate benchmarks (7.40% 30-yr fixed).
- Tax Foundation Property Taxes By State — National median effective property tax rate benchmark of 1.10% on assessed real estate value.
- Insurance Information Institute (III) Homeowners Benchmarks — National homeowners insurance (~0.50% of structure value) and renters insurance ($15–$20/mo) medians.
- Federal Reserve Consumer Finances & Flow of Funds — Historical housing equity accumulation rates, transaction costs, and long-term asset return benchmarks.
Frequently Asked Questions
Primary source guidance on rules, formulas, and regulations.
Whether it is better to rent or buy in 2026 depends primarily on how many years you plan to stay in the home. With 30-year mortgage rates around 7.40% and elevated home prices, the monthly cost of owning currently exceeds renting in most major US metropolitan areas. If you plan to move within 4 to 6 years, renting is typically far more cost-effective because closing costs (8% to 10% round-trip) and heavy early mortgage interest exceed your equity gains. If you plan to stay 7 to 10+ years, buying allows home price appreciation and long-term principal paydown to overcome upfront costs.
The 5% rule is a widely used financial heuristic to estimate the annual "unrecoverable cost" of owning a home. It breaks down into three components: 3% for mortgage interest (or the opportunity cost of equity), 1% for property taxes, and 1% for ongoing maintenance and depreciation. According to the rule, if you can rent a comparable home for less than 5% of its purchase price per year (or roughly 0.42% of its purchase price per month), renting is financially superior. For example, on a $400,000 home (5% = $20,000/yr), if you can rent an equivalent house for less than $1,667 per month, renting is cheaper.
No. Renting is paying for shelter, which is an essential living need. Furthermore, homeowners also "throw money away" every single month on unrecoverable housing expenses that build zero equity: mortgage interest (often $2,000+ per month initially on a $400k home), property taxes, homeowners insurance, HOA fees, and maintenance. If a renter invests the difference between renting and buying—along with the money saved on a down payment and closing costs—in a diversified index fund, they often accumulate equal or greater net worth than a homeowner over shorter timelines.
In the current 2026 market with mortgage rates above 7%, the national average breakeven horizon is between 5 and 7 years. When you buy a house, you pay 2% to 4% in purchase closing costs, and when you sell, you pay 5% to 6% in real estate agent commissions and transfer fees. Because the vast majority of your monthly payments in the first 5 years go toward bank interest rather than principal, it takes at least 5 to 7 years of moderate home price appreciation (3% annually) for your equity to exceed your total transaction and financing costs.
The biggest forgotten costs of homeownership include: (1) routine maintenance and major mechanical replacements (roof, HVAC, plumbing) averaging 1% to 2% of home value annually ($4,000 to $8,000/yr on a $400k home), (2) property tax reassessments, which rise over time, (3) homeowners insurance premiums and rising hurricane/wildfire deductibles, (4) HOA dues and special assessments, and (5) selling transaction costs (6% commission and transfer taxes that take $24,000+ off your proceeds on a $400k sale).
When you buy a house, you commit cash to a down payment (e.g., $80,000 on a $400,000 home) plus upfront closing costs ($12,000). If you rent instead, you can keep that $92,000 invested in index funds, high-yield savings, or treasury bills. At a modest 5% annual real return, $92,000 compounds to $117,417 in 5 years—a gain of over $25,000. PlainFig's calculator directly factors in this opportunity cost so you see the true wealth comparison.
The breakeven horizon is the exact point in time where the cumulative total cost of buying (all interest, taxes, maintenance, transaction costs, and opportunity costs minus home equity) becomes lower than the cumulative total cost of renting (rent paid plus renters insurance). Our interactive calculator dynamically computes this breakeven year for your specific numbers and displays it in the summary report.
No. While homes have historically appreciated at an average rate of 3% to 4% annually (roughly matching inflation), appreciation is not guaranteed and varies widely by region. If home values stagnate or drop during your ownership period, or if high inflation drives up property taxes and maintenance costs faster than home equity builds, renting remains the financially superior choice.
The price-to-rent ratio is calculated by dividing the median home purchase price by the annual cost of renting a comparable property (Home Price ÷ Annual Rent). Real estate economists evaluate the decision using three primary ratio bands: 1 to 15 (Favorable to Buy—purchasing is typically much more cost-effective than renting over standard timelines); 16 to 20 (Moderate/Neutral—the decision depends heavily on how long you stay, local property tax rates, and personal career flexibility); and 21 and Above (Favorable to Rent—home prices are significantly elevated relative to rental costs, meaning renting while investing the difference almost always produces higher net worth).
No. PlainFig's v1 Rent vs. Buy Calculator excludes the mortgage interest tax deduction, as clearly noted in our public methodology block. Following the Tax Cuts and Jobs Act (extended through 2026), the standard deduction is elevated ($16,100 Single / $32,200 Married Filing Jointly), meaning more than 90% of US taxpayers do not itemize deductions. For taxpayers with large mortgages who do itemize, the deduction lowers effective ownership costs and can shorten the breakeven horizon by 1 to 2 years.
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