Put the mortgage beside the carrying costs a listing price cannot show.
Calculations stay in this browser. No entries are saved.
Principal can become equity. Interest, closing costs, tax, insurance and maintenance are consumed and belong on separate lines.
Use current tax bills, insurance quotes, inspection findings and loan terms for the exact property.
The model separates principal converted to equity from costs consumed: mortgage interest, closing costs, property tax, insurance and maintenance. It does not count principal repayment as a cost, but it also does not assume appreciation.
Sale costs, opportunity cost, HOA charges, utilities, tax deductions and appreciation are excluded. Add them when material to your decision.
This calculator supports The Real Cost of a Mortgage. Rent vs. Buy: The Time Horizon Behind the Break-Even explains which details can change the inputs. The calculation methodology shows how we handle timing, rounding and exclusions.
Use current tax bills, insurance quotes, inspection findings and loan terms for the exact property. Inputs remain in the browser and outputs are rounded for display.
Read the complete methodology →Interest, closing costs, tax, insurance and maintenance are consumed; principal repayment generally builds equity and is shown separately from cost.
The model divides consumed costs over the selected ownership period, while excluding uncertain appreciation unless the user models it elsewhere.
Keep principal-built equity separate from costs consumed during the same years.