Rent vs Buy Calculator
Compare the total cost of renting versus buying commercial or residential property. Calculate the break-even year and receive a recommendation based on your specific situation.
Compare the total cost of renting versus buying office or warehouse space over your desired holding period. The calculator identifies the break-even year where buying becomes more economical.
Formula
Total Rent Cost = Sum of monthly rent × (1 + rent increase rate)^year | Total Buy Cost = Down Payment + (Monthly Mortgage + Annual Tax + Annual Maintenance) × years + Opportunity Cost | Break-Even = Year where cumulative buy cost ≤ cumulative rent cost
This comparison calculates the total cost of renting versus buying over a fixed period, accounting for rent escalation, mortgage payments, property taxes, maintenance, and the opportunity cost of your down payment. The break-even year shows when buying becomes cheaper than renting.
Worked Example
Compare $5,000/month rent vs $500,000 purchase (20% down, 6.5% mortgage, 20-year term) over 10 years.
Down payment: $500,000 × 20% = $100,000
Monthly mortgage + tax + maintenance: ~$3,200/month
Total rent over 10 years (with 3% annual increase): ~$672,000
Total buy cost over 10 years: ~$385,600 (down payment + 10 years costs)
Break-even year: Approximately Year 5
In this scenario, buying becomes cheaper than renting after approximately 5 years, making it the more economical choice for a stable, long-term occupancy.
Frequently Asked Questions
Use this in your workflow
After comparing rent vs buy, use the Rental Property Calculator to evaluate investment returns, or the Cap Rate Calculator to assess property capitalization rates. Browse all Free Business Calculators.
When to use this calculator
- →Deciding whether to rent or purchase office or warehouse space
- →Evaluating commercial property investment over a multi-year holding period
- →Identifying the break-even point where buying becomes cheaper than renting
- →Comparing different property options in your business plan or investment memo
Common mistakes when comparing rent vs buy
Ignoring the down payment as a capital cost
The down payment is not a month-to-month expense — it is capital tied up that could earn returns elsewhere. Include this as an opportunity cost in your analysis, or you will overstate the attractiveness of buying.
Using only nominal mortgage payments to represent buy costs
Mortgage payments include principal repayment (which builds equity) and interest (which is a true cost). Also include property tax, insurance, maintenance, and repairs. These easily add 30–50% to the mortgage payment.
Forgetting to account for rent escalation
Rent typically rises 2–4% annually. Over a 10–20 year period, this compounds significantly. This calculator includes a rent increase rate — do not forget to set it based on local market trends.
Not adjusting for property appreciation or depreciation
Property values change over time. If you expect strong appreciation, buying becomes more attractive. If you expect stagnation or decline, renting may be safer. The break-even year depends heavily on this assumption.
Underestimating maintenance and repair costs
Maintenance typically runs 1–3% of property value annually for commercial real estate. Many buyers underestimate this, making their buy scenario artificially attractive. Use realistic maintenance estimates.
Disclaimer
This calculator is for planning purposes only and provides estimates based on your inputs. Rent vs buy decisions depend on many factors including local market conditions, tax implications, financing options, and personal circumstances. This is not legal, tax, or financial advice. Consult a real estate advisor or financial professional before making significant property decisions.
Frequently asked questions
When is renting better than buying?
Renting is often better when you: need flexibility to relocate, cannot afford a large down payment, want to avoid maintenance costs, expect the property to decline in value, or have uncertain long-term occupancy needs. Renting transfers risk to the landlord but offers no equity buildup.
When is buying better than renting?
Buying is typically better when you: have a stable long-term need for the space, can secure favorable financing, expect property appreciation, want to build equity, can absorb maintenance costs, and plan to hold for 5+ years to justify transaction costs.
What is the break-even year?
The break-even year is when the cumulative cost of buying (including maintenance, taxes, and mortgage interest) equals or falls below the cumulative cost of renting. After this point, buying usually becomes more economical, assuming property appreciation and stable occupancy.
Should I include opportunity cost in my calculation?
Yes. Your down payment could have been invested elsewhere (e.g., stocks returning 5–10% annually). Opportunity cost represents the lost gains on that capital. This calculator includes an opportunity cost rate to model this accurately.
What costs should I include when renting?
Include monthly rent and annual rent increases. When buying, include down payment, mortgage principal and interest, property tax, insurance, maintenance, and repairs. This calculator uses simplified estimates — consult a tax advisor for detailed analysis.