UK Buy vs Rent Calculator

Make informed property decisions

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.