PITI
Principal, Interest, Taxes, and Insurance — the four components of the full monthly housing payment. Principal reduces your loan balance; interest is the lender’s cost; property taxes and homeowner’s insurance are collected monthly and held in escrow. Lenders use PITI (not just P&I) when calculating your front-end DTI ratio.
How it works in practice
PITI is the number underwriting actually tests — principal, interest, property taxes, and homeowners insurance — plus, where they apply, mortgage insurance and HOA dues (the acronym quietly grows to PITIA). Rate-shopping borrowers fixate on principal and interest, but taxes and insurance often decide qualification: identical loans support very different purchase prices in a 0.6% property-tax state versus a 2.4% one.
On a purchase, the lender estimates taxes from the county rate against the sale price (not the seller's current, possibly homesteaded bill) and insurance from a real quote — two lines worth checking early in high-tax or storm-exposed markets, where they can add hundreds of dollars a month. Most loans then escrow those amounts: the servicer collects a twelfth each month and pays the bills, with annual re-analysis when taxes change.
Two qualifying subtleties: adjustable-rate loans often must qualify at a rate above the teaser, so the underwriting PITI can exceed your initial real payment; and rental-property PITIA is the figure that a property's rent is measured against, both in conventional rental-income math and as the denominator of a DSCR ratio.
Common questions
Is PITI the same as my monthly payment?
Usually, if your loan escrows taxes and insurance — one payment covers all four letters plus any mortgage insurance and HOA dues. On loans without escrow you pay taxes and insurance separately, but underwriting still counted them.
Why did my PITI change after closing?
The escrow re-analysis. Property taxes reassess (often upward after a sale) and insurance premiums renew; the servicer trues up your monthly escrow deposit each year. Principal and interest stay fixed on a fixed-rate loan — the moving parts are T and I.
Related terms
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- Escrow — An account managed by your loan servicer that collects a portion of your monthly payment to cover property tax…
- Title insurance — Insurance protecting the lender (and optionally the buyer) against claims against the property’s ownership his…
- Earnest money — A good-faith deposit made when your offer is accepted, demonstrating serious purchase intent. Typically 1–3% o…
- Closing disclosure (CD) — The final itemized disclosure of your loan terms, rate, monthly payment, and all closing costs. Federal law re…
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Sources
Educational definition only — not financial, legal, or tax advice. Programs and limits change; verify current terms with a licensed professional.