DSCR loans (Debt Service Coverage Ratio loans) are underwritten on a single question: does the property generate enough rental income to cover its debt payments? That single shift in underwriting logic makes them the primary financing tool for self-employed investors, portfolio builders, and anyone whose personal tax returns understate their actual financial position.
Before applying, investors need to understand exactly which numbers lenders scrutinize, how those numbers interact, and where the hard floors are versus where there is room to negotiate.
What DSCR Actually Measures
The DSCR is calculated by dividing a property's gross rental income (or net operating income, depending on the lender's methodology) by the total monthly debt service on the proposed loan, including principal, interest, taxes, insurance, and HOA dues where applicable.
A DSCR of 1.0 means rent exactly covers debt service. A DSCR of 1.25 means rent covers 125% of debt service, leaving a 25% cushion for vacancy and expenses. Most lenders require a minimum DSCR between 1.10 and 1.25, with 1.25 being the most common hard floor for standard pricing. Some lenders will approve loans at a DSCR as low as 1.0 with compensating factors, but expect rate adjustments of 0.25 to 0.50 percentage points.
For short-term rental properties, lenders typically use either 12-month platform earnings (Airbnb, VRBO) or a market-rate long-term lease comparable, whichever is lower, to stress-test the income assumption.
Credit Score Requirements
The minimum credit score for most DSCR lenders sits at 620 to 640. Below 660, expect meaningful pricing adjustments. The cleaner pricing tiers generally look like this:
- 740 and above: Best available rate, maximum LTV
- Slight rate premium, typically 0.125 to 0.25 percentage points higher
