Mortgage Calculator with Tax and Insurance
Add property tax, insurance and maintenance to see the true monthly cost (PITI).
100% runs in your browser — no upload, no trackingThese are estimates using standard formulas (amortization and the common 28%/36% guideline). They are not financial or real-estate advice — confirm any number with a lender or broker.
How the monthly payment is calculated
The monthly principal and interest is an amortizing loan: each payment covers the interest due plus a slice of the balance, so the balance falls over time. Add property tax, insurance and maintenance for the true monthly cost (PITI).
General housing facts
Home prices and property-tax rates vary a lot by location. The mortgage payment is mostly principal and interest, but taxes, insurance and maintenance often add 20–40% on top. Local prices and taxes change year to year, so always get a formal quote from a lender and check current listings.
FAQ
How is the monthly mortgage payment calculated?
It is an amortizing loan: payment = loan × r(1+r)^n / ((1+r)^n − 1), where r is the monthly rate and n the number of months. Add tax, insurance and maintenance for the full monthly cost.
What does the rent-vs-buy break-even mean?
It is the number of years you would need to stay before buying costs less than renting, on the assumptions you entered. Stay longer and buying usually wins; move sooner and renting usually wins.
Is my data uploaded?
No. All calculations run in your browser. The numbers you enter never leave your device.
Is this financial advice?
No. These are planning estimates using standard formulas. Confirm any mortgage or housing decision with a lender, broker, or tax professional.