Stage 04 · The number that decides the refinance
DSCR (debt service coverage ratio)
DSCR measures whether a rental carries its own loan: qualifying monthly rent over the full monthly payment, PITIA. That payment is principal, interest, taxes, insurance and association dues. A DSCR loan qualifies on this ratio in place of your W-2s, tax returns and debt-to-income test, which is why it’s the standard take-out for a BRRRR or a flip you decide to keep.
The ratio does two jobs. It decides whether the property qualifies, and the lender’s minimum caps how large a payment the rent can support, which caps the loan.
DSCR = qualifying monthly rent ÷ monthly PITIA
- 1.00: rent and payment are equal.
- 1.21: every $1 of payment has $1.21 of rent behind it.
- 0.85: the rent covers 85% of the payment; you cover the rest every month.
The example deal, refinanced
The ranch is finished and leased at $2,300 a month; the appraiser’s rent schedule puts market rent at $2,350, so the lender uses the lower $2,300. The new loan is $213,750, 75% of the $285,000 appraisal, at 7.5% over 30 years: $1,494.57 of principal and interest. Add $290 of taxes and $120 of insurance and PITIA is $1,904.57. $2,300 ÷ $1,904.57 = 1.21.
Turn it around to find your largest loan
Run the formula backwards and the lender’s minimum tells you the biggest loan the rent will carry. If a lender wants 1.25 on this file, the most PITIA it will accept is $2,300 ÷ 1.25 = $1,840. Take off $410 of taxes and insurance and $1,430 is left for principal and interest, which at 7.5% over 30 years supports about $204,500, roughly $9,200 less than the 75% LTV figure. Drop the minimum to 1.00 and the same rent supports roughly $270,300, which means the LTV cap is what binds. Check both before you count on the cash coming back out; the DSCR calculator does it in one step.
Which rent counts
Lenders generally take the lower of your signed lease and the appraiser’s market rent. Kiavi uses your lease unless it tops 110% of appraised market rent, so on the ranch, $2,300 counts either way (110% of $2,350 is $2,585). Roc counts unleased units at 90% of market rent. On a 2–4 unit building, add up every unit’s rent and divide by the building’s single PITIA. Airbnb and vacation rentals follow their own rules; see short-term rental income.
What lenders look for
- A floor between 0.75 and 1.05 on 1–4 unit rentals. Minimums published in October 2026: Roc Capital and Civic 1.05; Lima One and RCN 1.00; Kiavi 0.80; LendingOne and Defy 0.75. Easy Street listed no minimum, Angel Oak offers programs below 1.00 and with no ratio, and Griffin’s no-ratio option stops at 75% LTV with a 700+ score.
- 1.25 and up earns better treatment. Per LendingOne, a ratio of 1.25 or more tends to be viewed favorably, while one under 1.0 meets tougher underwriting and can mean higher rates and fees. Its September 2026 ranges were 6% to 7% for strong-DSCR, high-credit borrowers against 8% to 10% and up for lower-DSCR files.
- Bigger buildings, higher bars. Small-balance lenders on 5+ unit apartments published 1.20x to 1.25x. Portfolio lenders set 1.00 to 1.05, and Roc and Civic measure portfolios on net cash flow rather than gross rent.
- Short-term rentals run tighter, and publish less. RCN’s STR minimum was reported at 1.20x. Expect to qualify on projected income for a purchase and on 12 months of bookings for a refinance.
- Coverage comes with cash. Some lenders also want reserves of 3 to 9 months of PITIA, and a stronger ratio won’t replace them.
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