How Our Buy vs Rent Calculator Works
Our Buy vs Rent Calculator uses a year-by-year financial simulation to compare your net wealth outcomes for buying versus renting. Here's how it works:
1. Initial Costs and Assumptions
- For buying, we start with the house price and subtract the down payment to calculate the mortgage amount.
- For renting, we begin with the monthly rent you provide.
- We use the mortgage term you specify for the duration of our calculations.
2. Year-by-Year Calculations
For each year over the mortgage term, we calculate:
Buying Costs:
- Mortgage payments (calculated using the standard amortization formula)
- Property taxes (based on the current home value)
- Maintenance costs (as a percentage of the home value)
- Home insurance costs
- We factor in home appreciation, increasing the home's value each year
Renting Costs:
- Annual rent payments
- We apply the specified annual rent increase
3. Investment Considerations
We account for the opportunity cost of the down payment and the difference in monthly costs:
- For the renting scenario, we assume you invest the down payment amount and any monthly savings compared to buying.
- Monthly savings are invested throughout the year and grow at the rate you specify for investment returns (with an average 6-month holding period for monthly contributions).
- The total investment value accumulates year-by-year, compounding at your specified investment return rate.
4. Final Net Worth Comparison
- For buying, your net worth = current home value minus remaining mortgage balance.
- For renting, your net worth = total investment value accumulated.
- We compare these final net worth figures to determine which option builds more wealth.
5. Limitations and Assumptions
It's important to note that this calculator:
- Assumes constant rates for factors like home appreciation and investment returns, which can vary in reality.
- Doesn't account for potential tax benefits of homeownership, which can vary by location and individual circumstances.
- Doesn't factor in one-time costs like stamp duty or moving expenses.
- Is a financial comparison tool and doesn't consider non-financial factors that might influence your decision to buy or rent.
This calculator provides a solid foundation for comparing the financial aspects of buying versus renting, but we always recommend consulting with a financial advisor for personalized advice tailored to your specific situation.