What data and assumptions does it use?

Standard amortization mathematics (public domain). Illustrative rates from the Freddie Mac Primary Mortgage Market Survey, dated on-screen.

Home calculator

Mortgage Payment Estimator

Estimates a full monthly housing payment: loan principal and interest via standard amortization, plus property tax, homeowners insurance, PMI when the down payment is under 20%, and HOA dues.

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Buyer-Ready

Turns your website visitors into named prospects

Agents and title companies co-brand the Mortgage Payment Estimator on their own sites. Visitors who run it can be identified through ProspectMatch and added to your prospects — no form fill required.

The method

How it works

01 Principal & interest uses the standard amortization formula for your loan amount, rate, and term.

02 Property tax applies your yearly rate to the home price, divided monthly.

03 PMI applies an annual rate to the loan amount while the down payment is below 20%.

Monthly P&I = L·r/(1−(1+r)^−n) with monthly rate r and n payments (public-domain amortization).

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