For a common residential rental-loan calculation, divide qualifying monthly rent by monthly principal, interest, taxes, insurance, and association dues (PITIA). A property with $2,500 of qualifying rent and $2,000 of PITIA has a DSCR of 1.25. Confirm the lender’s calculation before treating your estimate as a qualifying result.
What Goes Into the Monthly Payment?
Use the proposed loan payment, not just the mortgage balance or interest rate. Convert annual taxes and insurance to monthly amounts, then add any association dues. Confirm the treatment of flood insurance, assessments, and an interest-only payment with the lender.
Example: $2,500 Rent ÷ $2,000 PITIA = 1.25
- Principal and Interest
- $1,500 / month
- Property Taxes
- $300 / month
- Insurance
- $150 / month
- Association Dues
- $50 / month
- Total PITIA
- $2,000 / month
Illustrative numbers only, not a rate quote or an approval.
Is 1.00, 1.25, or 1.50 a Good DSCR?
A higher ratio indicates more rent relative to the measured payment, but “good enough” depends on the program and the rest of the file.
- Below 1.00: qualifying rent is less than the measured housing payment.
- At 1.00: rent equals that payment, before other costs.
- At 1.25: rent is 25% above that payment.
- At 1.50: rent is 50% above that payment.
These are mathematical comparisons, not universal approval thresholds.
Does a High DSCR Mean the Property Is Profitable?
No. In the example above, rent exceeds PITIA by $500. If you separately budget $125 for vacancy, $200 for management, and $250 for repairs and replacements, the projected cash flow becomes negative $75. Your lender’s ratio and your investment budget answer different questions.
Do not subtract those expenses from rent and still call the result the same rent-to-PITIA ratio. Commercial underwriting may use net operating income divided by debt service instead. Compare like with like.
Which Rent Number Should I Use?
Use supportable rent and label it clearly as actual or estimated. An optimistic listing price is not the same as lender-approved income. Ask how the program treats a signed lease, an appraiser’s rent estimate, vacancy, or short-term rental history. Visio’s DSCR explanation describes the residential rent-to-PITIA approach; confirm your selected program’s rules.
What If the Ratio Is Too Low?
Check for input errors first. Then compare a smaller loan amount, a different purchase price, or another available loan structure using realistic terms. Do not inflate rent to make the result pass. If the property needs renovation before it can earn the projected rent, a different financing path may need to come first.
Educational information, not a loan offer. Eligibility and terms depend on the program and review of your situation. Examples are illustrative.