Help & support
Frequently Asked Questions
Quick answers to common questions about the Mortgage calculator.
What does P&I mean?
P&I is the monthly principal and interest payment calculated from the fixed-rate amortization formula.
What does PITI mean?
PITI stands for principal, interest, property taxes, and homeowners insurance. This page also adds PMI when entered.
Is the displayed PITI my full housing cost?
Only for the annual costs you enter. HOA dues, maintenance, utilities, fees, and changing escrow costs are not included.
Does the calculator infer PMI?
No. Enter an annual PMI estimate from a relevant quote if applicable.
Why can a lender payment differ?
A lender may use different fees, timing, escrow estimates, APR components, and rounding.