Understanding Debt Service Coverage Ratio
How we calculate. DSCR = net operating income ÷ annual debt service (e.g. 1.25x). The form uses the same arithmetic as the worked examples on this page. See our methodology and accuracy policy.
Real-world scenario: A typical Debt Service Coverage Ratio case uses annual noi 125000 and annual debt service 100000. Enter the same figures below to reproduce the worked path.
What is Debt Service Coverage Ratio?
Lender underwriting metric. Many commercial loans require DSCR above a covenant (often ~1.20–1.25x).
- NOI before debt service
- Debt service = annual P&I (and other required debt payments)
- >1.0 means NOI covers payments
The Formula
Worked Example
Common Use Cases
- Loan sizing: max debt checks
- Refinance: covenant headroom
- Portfolio risk: coverage trends
Pro Tips
- Use lender’s NOI definition
- Stress vacancy and rates
- Don’t confuse with DTI (personal lending)
Limitations: Debt Service Coverage Ratio results are educational real-estate planning aids—not appraisals, loan offers, or investment advice. Confirm figures with qualified professionals and your lender.
FAQ
Is DSCR a percent?
No—it is a coverage multiple (e.g. 1.25x). This calculator returns that ratio.
What if debt service is 0?
DSCR is undefined for free-and-clear (no debt)—there is nothing to cover.
Authoritative References
For real estate investing concepts, consult:
- National Association of Realtors — market and practice context
- Investopedia — Cap rate — capitalization rate basics
- CFPB — homebuying and closing education