Financial Ratio Calculator
DSCR Calculator
Calculate your debt service coverage ratio to understand whether operating income can comfortably service existing and proposed debt obligations.
Enter your financial details
How is DSCR calculated?
The debt service coverage ratio divides a business's net operating income by its total annual debt service obligations. It tells lenders how many times over the business can cover its debt repayments.
DSCR = Net Operating Income — Total Annual Debt Service
For example, if a business earns £250,000 in annual operating income and has £180,000 in total annual debt repayments, the DSCR is 1.39x — meaning operating income covers debt 1.39 times.
A DSCR below 1.0x indicates the business does not earn enough from operations to meet its debt obligations, which represents a significant risk to lenders.
DSCR benchmarks lenders use
| DSCR Range | Interpretation |
|---|---|
| Below 1.0x | Business cannot cover debt from operating income. High risk of default. |
| 1.0x — 1.24x | Marginal coverage. Most lenders will require additional security or reject. |
| 1.25x — 1.49x | Acceptable for many lenders. Meets typical minimum thresholds. |
| 1.5x and above | Strong coverage. Comfortable buffer above debt obligations. |
Assumptions and caveats
- •Net operating income should be entered as EBITDA or an equivalent measure of operating profit before debt service.
- •Total debt service should include all principal and interest repayments, including existing and proposed facilities.
- •This is a point-in-time calculation. Lenders may also consider projected DSCR based on forecast income.
- •Different lenders apply different minimum DSCR thresholds depending on the sector and facility type.
Frequently asked questions
Most lenders require a DSCR of at least 1.25x, meaning net operating income is 125% of total debt service. A ratio above 1.5x is generally considered strong. Below 1.0x means the business cannot cover its debt obligations from operating income.
DSCR stands for Debt Service Coverage Ratio. It measures a business's ability to repay its debt obligations from its operating income, and is one of the most important metrics lenders assess when evaluating affordability.
Lenders use DSCR to assess whether a borrower generates enough income to comfortably service their debt. It is a key part of affordability assessments for business loans, asset finance, and commercial mortgages. A low DSCR may result in reduced borrowing capacity or loan rejection.
Need lending advice?
Understand your borrowing capacity with help from the Spark team. Get matched with the right lender for your business.
Contact the Spark Team