Weigh a monthly rent against the true monthly cost of owning, payment, taxes, insurance and upkeep.
A rent-vs-buy calculator compares the monthly cost of renting with the true monthly cost of owning a home, mortgage, taxes, insurance, and upkeep, so you can see which is cheaper on a cash-flow basis today.
The payment is only part of ownership. Property taxes, homeowners insurance, and maintenance (often budgeted at around 1% of the home's value a year) can add hundreds a month on top of principal and interest. A fair comparison to rent has to include all of them, which is what the calculator rolls together.
This tool compares monthly outlay, but buying also builds equity and can appreciate, while your down payment has an opportunity cost if it were invested instead. Renting stays flexible and predictable. Over long horizons buying usually wins once appreciation and equity are counted; over short ones, the transaction costs of buying and selling often tip it toward renting.
On monthly cash flow it depends on prices, rates, and how long you stay. Buying adds equity and possible appreciation but costs more upfront; renting is cheaper short-term and more flexible. Enter your numbers to compare.
Property taxes, homeowners insurance, and maintenance, often over 2.5% of the home's value a year combined, plus any HOA dues. These can rival the loan payment itself.
Because buying and selling carry large transaction costs, many buyers need to stay several years to come out ahead. The longer you stay, the more equity and appreciation favor owning.
See the exact formula and a worked example on our methodology page.