How this rent vs buy calculator works
Deciding whether to rent or buy comes down to which path costs you less over the time you actually live in the home. This tool adds up every dollar each option requires over your chosen comparison period, then compares the two totals so you can see the difference and a plain-language verdict.
On the buying side it counts the down payment, all mortgage principal and interest payments made during the period (using the standard amortization formula), annual property tax and annual maintenance and insurance — both figured as a percentage of the home price. It then subtracts the value you keep at the end: the home equity you have paid down plus any appreciation, credited as the estimated sale value. That net figure is the true cost of owning for the period.
On the renting side it sums each year's rent, raising it by the annual increase you enter. The smaller total wins, and the calculator states by how much over your chosen number of years. Shorten or lengthen the period to find the rough break-even point where buying overtakes renting.
Reference note: results are estimates in US dollars using a fixed mortgage rate and constant percentage rates. The model ignores closing and selling costs, private mortgage insurance, tax effects and any investment return you might earn on the down payment if you rented. This is general math, not financial advice.
Frequently asked questions
- Is it cheaper to rent or buy?
- It depends on your numbers and how long you stay. Renting is usually cheaper in the short term with no down payment or upkeep, while buying tends to win over longer periods as you build equity and the home may appreciate. This calculator totals each path over the years you choose so you can compare directly.
- What is the break-even point?
- It is the number of years at which the total cost of buying drops to match the total cost of renting. Before that point renting is cheaper; after it, buying is cheaper. Change the comparison period to see roughly when the verdict flips for your inputs.
- What costs does buying include?
- The down payment, all mortgage principal and interest paid during the period, annual property tax and annual maintenance and insurance. The tool then subtracts the value you keep — equity built plus appreciation — to give the net cost of buying.
- Does this account for home appreciation?
- Yes. Enter an optional annual appreciation rate and the calculator grows the home value over the period, then credits the full estimated sale value back against the cost of buying. Set it to zero to assume the home holds its purchase price.
- What assumptions are made?
- It uses a fixed mortgage rate and constant percentage rates for tax, maintenance and appreciation, figured on the original price. It ignores closing and selling costs, PMI, tax effects and any investment return on the down payment. Treat results as a transparent estimate.
- Is this financial advice?
- No. This is a neutral, informational math tool, not advice, a quote or an offer. Results are estimates that simplify a complex decision. Confirm real figures with a qualified professional before deciding.