How to Calculate DSCR for Investment Property Loans
DSCR (Debt Service Coverage Ratio) measures whether a property's rental income covers its debt obligations. Lenders use DSCR to qualify investment property loans — if the rent does not cover the mortgage payment with a sufficient margin, the loan is denied. Understanding DSCR is essential for rental investors and for wholesalers marketing to rental buyers.
The DSCR formula
DSCR = Net Operating Income / Annual Debt Service
NOI = annual gross rent minus vacancy and operating expenses (taxes, insurance, maintenance, management). Annual debt service = total annual mortgage payments (principal + interest). A DSCR of 1.0 means rent exactly covers the debt. A DSCR above 1.0 means there is a margin. Below 1.0 means the rent does not cover the mortgage.
DSCR requirements by lender type
| Lender Type | Minimum DSCR |
|---|---|
| Conventional (Fannie/Freddie) | Not used (personal income-qualified) |
| DSCR loans (portfolio lenders) | 1.0-1.25 |
| Commercial loans | 1.20-1.35 |
| Hard money (refinance) | 1.0-1.10 |
Example calculation
Monthly rent: $2,000. Annual gross: $24,000. Vacancy (7%): -$1,680. Operating expenses (40%): -$9,600. NOI: $12,720. Monthly mortgage: $850. Annual debt service: $10,200. DSCR = $12,720 / $10,200 = 1.25.
This property qualifies for most DSCR loans. The rent covers the mortgage with a 25% margin.
DSCR loan advantages
DSCR loans qualify borrowers based on the property's income, not the borrower's personal income. This is powerful for investors who: have high DTI from multiple properties, are self-employed with complex income, want to scale beyond conventional loan limits (typically 10 properties), or are buying in an LLC or entity.
How to improve DSCR
- Increase rent: Renovate to command higher rent, or add value (extra bedroom, ADU)
- Lower the purchase price: Negotiate a better deal = smaller loan = lower debt service
- Larger down payment: More cash down = smaller loan = lower monthly payment
- Better interest rate: Shop multiple lenders, improve credit score
- Reduce expenses: Lower insurance costs, property tax appeals, efficient property management
DSCR in wholesale marketing
When marketing a deal to rental buyers, include the DSCR calculation in your deal package. Show them: projected rent, estimated expenses, NOI, and the DSCR at various down payment levels (20%, 25%, 30%). Making it easy for buyers to see that the deal qualifies for financing accelerates their decision.
Related guides
- How to Analyze a Rental Property
- How to Calculate Cap Rate
- How to Project Rental Income
- Rental Cash Flow Analysis
- How to Calculate ROI on Rentals