Mortgage & Home Equity•Opportunity Cost & Equity Modeling
Buy vs. Rent Calculator: Compare Net Wealth & Breakeven
Compare total net wealth, opportunity costs of invested down payments, dynamic 80% LTV PMI removal, and breakeven horizons before deciding whether to buy vs rent a house using our free buy vs rent calculator.
Buying Financial Advantage
Buying becomes cheaper after 4 Years!
If you stay less than 4 years, renting is cheaper due to $12,000 in upfront closing costs. By staying 7 years, buying builds +$48,250 more in net wealth!
Breakeven Horizon4 Years
Initial Cost: $12,000 Closing
7-Yr Buyer Net Position+$182,400
Home Equity: $154,200
7-Yr Renter Net Position+$134,150
Invested Capital: $83,400
30-Year Net Wealth Trajectory & Crossover
Buying Net Wealth (Equity + Surplus Invested) vs. Renter Investment Portfolio over time.
Buying WealthRenting Wealth
Year-by-Year Financial Accounting
Home equity growth, remaining mortgage, renter investment portfolio, and symmetric cash-flow surplus investments.
| Year | Home Value | Mortgage Principal | Buyer Net Position | Renter Net Position | Financial Winner |
|---|
Frequently Asked Questions
Fact-checked guidance grounded in symmetric cash-flow opportunity cost accounting.
Is it better to rent or buy a house right now?▾
Neither option is universally better. It depends on your local price-to-rent ratio, planned stay horizon, interest rates, and opportunity cost of your down payment. Renting is often financially superior for short stays under 5 years, while buying tends to build greater long-term net wealth over 7 to 10+ years as mortgage principal is paid down and home equity appreciates.
How long do I need to stay in a home for buying to make sense?▾
Typically 5 to 7 years. Selling a home incurs ~6% to 8% in transaction costs (real estate commissions, seller concessions, title insurance, transfer taxes) plus ~2% to 4% in initial buyer closing costs. Staying 5+ years allows home appreciation and principal paydown to offset these upfront transaction friction costs.
What costs do people forget to include when comparing renting vs. buying?▾
Homebuyers often forget ongoing property maintenance (1% to 2% of home value annually), HOA fees, home insurance inflation, special assessments, and upfront buying closing costs. Renters often forget annual rent increases (averaging 3% to 5% per year) and security deposit opportunity costs.
Does a bigger down payment always make buying better?▾
Not necessarily. While a 20% down payment eliminates monthly PMI, investing a portion of that cash in high-return stock market index funds while making a smaller down payment (e.g. 5% to 10%) can sometimes yield higher net net-worth over long horizons due to compounding market returns.
Financial Methodology & TCJA Regulatory Notes:
- Symmetric Opportunity Cost: Monthly savings are invested at your assumed rate by whichever option (renting or buying) is cheaper in a given month. When buying is cheaper than rent in later years, the surplus cash is invested into the buyer's side portfolio.
- Dynamic 80% LTV PMI Removal: If the initial down payment is under 20%, PMI (0.55%/yr) is charged monthly ONLY until combined loan paydown and home appreciation reduce the LTV to 80.0% or lower.
- 2026 Itemized Tax Caveat: Mortgage interest and property taxes are only tax-deductible if total itemized deductions exceed the 2026 standard deduction ($16,100 single / $32,200 joint). Baseline figures model non-itemized cash flows.
- Market Variance: Home appreciation and stock returns are not guaranteed. Local property tax rates, insurance costs, and rent inflation vary from national averages.