Conventional lenders evaluate borrower income through W-2s, tax returns, and debt-to-income ratios. For investors who hold properties in LLCs, write off depreciation aggressively, or own more than four financed properties, that underwriting process often produces a denial. Debt Service Coverage Ratio (DSCR) loans sidestep that framework by qualifying the property instead of the borrower.
What a DSCR Loan Is
A DSCR loan is a non-QM (non-qualified mortgage) product built specifically for investment properties. "Non-QM" means it falls outside the guidelines set by Fannie Mae and Freddie Mac, which allows lenders to underwrite using alternative qualification criteria.
The core question a DSCR lender asks: does the property generate enough rental income to cover its own debt payments? The answer is expressed as a ratio.
DSCR = Gross Rental Income / Total Monthly Debt Service (PITIA)
PITIA stands for principal, interest, taxes, insurance, and any applicable HOA dues. Some lenders use net operating income (NOI) in the numerator, subtracting vacancy and expenses, while others use gross scheduled rent. Confirm the methodology with each lender, because it affects whether a given property clears their threshold.
A Concrete Example
A single-family rental generates $2,400 per month in gross rent. The proposed mortgage payment, including taxes and insurance, is $1,920 per month.
DSCR = $2,400 / $1,920 = 1.25
A DSCR of 1.25 means the property produces 25% more income than the debt requires. Most lenders set their minimum at 1.20 to 1.25. Some will approve at 1.0 (break-even) with compensating factors such as a larger down payment or higher credit score. A DSCR below 1.0 indicates negative cash flow and is generally a disqualifier.
