Rent vs. Buy Calculator
Compare the true lifetime wealth creation of buying a home versus renting and investing your down payment and monthly savings in market index funds.
Initial Monthly Rent
Initial Monthly PITI
Home Equity (Yr 10)
Renter Portfolio (Yr 10)
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Home Purchase Scenario
Rental & Investment Scenario
💡 How Opportunity Cost is Modeled:
The renter starts by investing the exact cash needed for buying (Down Payment + Closing Costs). Each month, if renting is cheaper than total homeownership costs, the surplus is invested. If buying is cheaper in later years, the difference balances out.
Year-by-Year Net Worth Trajectory
| Year | Monthly Rent | Monthly PITI + Maint | Home Value | Buyer Net Worth | Renter Portfolio | Financial Winner |
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Rent vs. Buy: The 2026 Complete Financial Framework
Deciding between buying a home and continuing to rent is one of the most critical financial decisions an individual or family will make. In the current economic cycle marked by 6.25%–6.85% mortgage rates, the historical rule of thumb that "renting is throwing money away" is mathematically inaccurate. Both paths carry distinct capital allocations, tax implications, and opportunity costs.
1. The 5% Rule of Unrecoverable Costs
Coined by financial analyst Ben Felix, the 5% rule evaluates whether the cost of owning a home is cheaper or more expensive than rent. Homeowners face three core unrecoverable costs that do not build equity:
- Property Taxes (~1% to 1.5%): Mandatory municipal expenses that yield zero equity.
- Maintenance & Repairs (~1%): Capital replacements including roof, HVAC, plumbing, and wear.
- Cost of Debt Capital (~3% to 4%): Mortgage interest paid to lenders without reducing loan principal.
If an equivalent rental property costs less per month than 5% of the target home's purchase price divided by 12, renting and diligently investing the difference in diversified low-cost index funds can yield a higher net worth over short-to-medium time horizons.
2. Why Break-Even Typically Takes 4 to 6 Years
During the first 36 to 60 months of an amortized mortgage, 60% to 75% of every monthly mortgage payment is consumed purely by interest. Combined with upfront buyer closing costs (2% to 4%) and eventual seller transaction fees (5% to 6%), a buyer who moves within 3 to 4 years frequently loses money compared to a disciplined renter.
Frequently Asked Questions
Is renting really throwing money away?
No. Rent provides guaranteed housing security with capped monthly liability, zero maintenance risk, and zero property devaluation risk. Renting also preserves upfront liquidity to invest in liquid assets like index funds.
How long do I need to stay in a house to make buying worth it?
In the 2026 mortgage environment, the typical break-even point is between 4 and 6 years. If you plan to move within under 4 years, renting is almost always financially superior because upfront buyer closing costs (2% to 4%) and eventual seller agent commissions (5% to 6%) easily exceed your early principal paydown.
Does the 5% rule still apply to renting vs. buying?
Yes. The 5% rule suggests that unrecoverable annual homeownership costs equal ~5% of property value (1% property tax + 1% maintenance + 3% cost of debt capital/interest). If equivalent monthly rent is less than (Home Price × 5% ÷ 12), renting and investing the difference is mathematically cheaper.
How does the rent vs. buy opportunity cost work with investing in stocks?
The opportunity cost calculation models the renter taking the exact upfront capital required to buy (down payment + loan closing costs) and investing it into index funds compounding at a historical 7% to 8% return, while also investing the monthly difference during early years when renting is cheaper than total PITI and maintenance.
Should I rent or buy if current mortgage interest rates are high?
When mortgage interest rates hover around 6.5% to 7.0%, renting and investing the difference often provides higher net worth for the first 5 to 7 years. However, buying locks in your shelter cost against continuous rent inflation and provides refinancing opportunities if market rates decrease.
What happens when mortgage interest drops?
If interest rates decrease, existing homeowners can utilize our Refinance Break-Even Calculator to reduce their monthly PITI, accelerating equity creation.
How does inflation affect rent vs. buying?
A fixed-rate mortgage locks in the principal and interest payment for up to 30 years, acting as a powerful hedge against inflation. Conversely, rents typically increase by 2.5% to 5% annually, eventually causing renting to become more expensive than fixed mortgage payments over long horizons.
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