Lenders generally calculate rental income for a DSCR loan using either the signed lease amount or a market-rent estimate from the appraisal, then compare that figure with the property’s monthly housing payment — principal, interest, taxes, insurance and, where applicable, HOA dues (PITIA) — to produce a debt service coverage ratio. Exact methods vary by lender and program.
Which Rental Income Figure Lenders May Use
Many DSCR lenders look at the current lease, the appraiser’s market-rent opinion, or both. Some programs use the lower of the two, which helps protect against a lease that is above market or may not renew at the same rate.
- Leased property: The lender may use the current monthly lease amount, verified against the signed lease agreement.
- Vacant property or one being converted to a rental: The lender may rely on the appraiser’s market-rent analysis (commonly a rent schedule such as Form 1007 or 1025), since there is no lease to verify.
- Short-term rental property: Income treatment varies by program. See our short-term rental DSCR loan guide for how platform history and market analysis may be weighed differently than a standard lease.
The DSCR Formula, Step by Step
DSCR = Gross Monthly Rental Income ÷ Total Monthly PITIA
Illustrative example: A single-family rental leases for $2,400 per month. The property’s full monthly payment — principal, interest, property taxes and insurance, with no HOA — is $2,000.
DSCR = $2,400 ÷ $2,000 = 1.20
In this example, the income exceeds the monthly payment. Actual qualifying ratios and thresholds vary by lender and program. You can test your own numbers with the DSCR Calculator before you submit a scenario, or read the full walkthrough on calculating DSCR for a rental property.
What Counts as PITIA
- Principal and interest on the proposed loan
- Property taxes (the annual bill divided by 12)
- Hazard or landlord insurance (the annual premium divided by 12)
- HOA dues, if applicable
- Flood insurance, if the property is in a flood zone
Utilities, property management fees and maintenance costs are generally not part of the DSCR formula itself, although lenders may address them separately through reserve and other requirements. See the DSCR loan requirements guide for more.
Multi-Unit and Portfolio Properties
For 2–4 unit properties, lenders may add together the lease or market rent across all units before comparing it with the property’s single combined payment. For investors with multiple properties, DSCR is generally evaluated property by property, so strong cash flow on one property may not offset a weaker ratio on another.
Why a Rental Income Figure May Come in Lower Than Expected
- The appraiser’s market-rent comparables may be older or lower-rent than your target rent
- The lease may include utilities or concessions that reduce effective rent
- A short-term rental may have limited operating history to support projected income
- Seasonal markets may lead to a more conservative annualized figure
Frequently Asked Questions
Do lenders use gross rent or net rent for DSCR?
Many DSCR programs start from gross rent rather than rent after operating expenses. Expenses such as management and maintenance are typically addressed elsewhere in underwriting, such as through reserve requirements. Confirm the method with the specific program.
Can projected rent be used if the property is not leased yet?
Often, yes. For vacant properties or purchases, lenders commonly rely on the appraiser’s market-rent analysis. Whether it applies depends on the program and the property.
Does a higher rent always mean a higher loan amount?
Not necessarily. A higher qualifying rent can improve the DSCR, but the loan amount is still limited by the property’s appraised value and the program’s leverage limits, all subject to underwriting.
Explore Your Rental Property Numbers
Run your scenario through the DSCR Calculator using your property’s actual or projected rent, and compare monthly cash flow with the Rental Cash Flow Calculator. DSCR and cash flow are related but not the same measure. When you are ready, check your eligibility →
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