---
title: Understand estimated DSCR
description: "Debt-service coverage ratio compares the income used for qualification with the housing payment used for that calculation. The applicable lender defines the accepted numerator and denominator. ## A simple preliminary calculation For an illustrative rental-income-to-housing-payment calculation: **DSCR = monthly qualifying…"
url: "https://www.shorttermrentaladvisory.com/docs/understand-dscr/"
updated: "2026-10-06"
category: "Income & DSCR"
---

# Understand estimated DSCR

Debt-service coverage ratio compares the income used for qualification with the housing payment used for that calculation. The applicable lender defines the accepted numerator and denominator.

## A simple preliminary calculation

For an illustrative rental-income-to-housing-payment calculation: **DSCR = monthly qualifying rental income ÷ monthly housing payment.** If income is $4,000 and the payment is $3,200, the ratio is 1.25. Confirm whether the payment includes principal, interest, taxes, insurance, and association dues.

## DSCR is different from cash flow

A qualification ratio may not deduct all operating expenses. Management, utilities, repairs, vacancy, reserves, and furnishings can materially affect investor cash flow even when the estimated ratio meets a program threshold.

## What the estimate means

Do not assume a universal minimum ratio or universal income treatment. A lender may use appraiser-supported rent, documented rental history, or other permitted evidence. Credit, leverage, property, ownership, and state eligibility also matter.

## Related help

- [Calculate the income needed to support a loan](https://www.shorttermrentaladvisory.com/docs/calculate-required-rent/)
- [Stress-test cash flow](https://www.shorttermrentaladvisory.com/docs/stress-test-property-cash-flow/)

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Property and financing outputs are preliminary estimates, not an approval, rate lock, commitment, or guarantee. Eligibility and final terms require professional review and lender underwriting.