Calculator Methodology

What the calculators do

MortgageWise helps visitors explore scenarios before speaking with a lender or counselor. Results are not loan offers, approvals, or personalized financial advice.

Mortgage calculations

Fixed-rate principal-and-interest estimates use the standard amortization formula. Taxes, insurance, HOA dues, PMI, closing costs, maintenance, and other expenses are separate inputs or planning assumptions.

Debt calculations

Debt tools estimate monthly interest and principal reduction from the balance, APR, payment, and extra payment supplied. Actual statements may include daily interest, fees, variable rates, capitalization, or special rules.

Why results differ

• Lenders use verified income, credit, property, loan-program, and underwriting data.
• Rates, fees, taxes, and insurance vary by borrower and location.
• Rounding and payment timing can change an amortization schedule.

Privacy

Calculator inputs are processed in the browser and MortgageWise does not save calculator values on its servers. Report unclear assumptions through the Contact page.