For many 1–4 unit DSCR programs, divide qualifying monthly rent by monthly PITIA. Example: $2,500 qualifying rent ÷ $2,000 PITIA = 1.25 DSCR. This is an illustration, not a lender quote.
What belongs in PITIA
PITIA generally means principal, interest, property taxes, homeowners insurance, and association dues. Flood insurance, special assessments, and other items can also matter.
Why your calculation may differ
Investors often calculate net operating income after management, repairs, and vacancy. Residential DSCR programs may instead use a rent-to-PITIA approach. Commercial underwriting commonly uses NOI divided by annual debt service.
Improve the scenario before applying
Verify realistic rent, current taxes and insurance, association dues, loan amount, rate assumptions, and any required reserves. A small error in insurance or taxes can materially change the ratio.
What to do next
Use the numbers and documents from this guide to prepare a complete scenario. Final eligibility and terms depend on the lender’s current program, underwriting, property, borrower, business, and state.