DSCR Calculator

The Debt Service Coverage Ratio is the single most scrutinised metric in project finance and commercial lending. It measures a borrower's ability to generate enough operating income to cover all debt obligations, both principal repayments and interest payments. A DSCR of 1.0 means the business generates exactly enough to service its debt with nothing left over. A DSCR below 1.0 indicates the business cannot meet its debt payments from operations alone, signalling potential default risk. Lenders in India typically require a minimum DSCR of 1.25x to 1.50x for commercial term loans.

How DSCR Is Calculated

The formula is deceptively simple: DSCR = Net Operating Income / Total Debt Service. However, the definition of Net Operating Income varies by context. In project finance, it is typically the project's cash flow available for debt service (CFADS), which starts with EBITDA and adjusts for taxes, working capital changes, and maintenance capex. For real estate lending, NOI is gross rental income minus operating expenses. Getting the numerator right is crucial because overstating NOI artificially inflates the DSCR.

DSCR Thresholds and What They Mean

Banks and financial institutions use DSCR thresholds as both eligibility criteria and covenant conditions. A DSCR above 2.0x is considered excellent and provides a comfortable buffer. Most Indian banks require a minimum DSCR of 1.25x to 1.50x for sanctioning a term loan. Below 1.25x, the margin of error becomes thin. Below 1.0x, the borrower is technically unable to service debt, and lenders will classify the account as stressed. Infrastructure projects with long concession periods may have lower DSCR requirements during initial years if the cash flow profile improves over time.

DSCR in Indian Lending Practice

The Reserve Bank of India considers DSCR as one of the key parameters for credit risk assessment under its prudential guidelines. Indian banks evaluate both the average DSCR over the loan tenure and the minimum DSCR in any single year. A project may have an average DSCR of 1.5x but a minimum of 1.1x during a construction year, which may still be acceptable if the low DSCR year is temporary. For MSME loans, simplified DSCR computation using ITR data is common. For large project finance (infrastructure, power, manufacturing), detailed year-by-year DSCR projections are mandatory.

Improving Your DSCR

If your DSCR is below the required threshold, there are two fundamental approaches: increase NOI or reduce debt service. On the NOI side, this means growing revenue, improving margins, or reducing operating expenses. On the debt side, options include extending the loan tenure (reducing annual principal repayment), refinancing at a lower interest rate, or injecting equity to reduce the debt quantum. In practice, a combination of both approaches is often necessary. A DSCR of 1.10x might be improved to 1.35x by extending tenure from 7 to 10 years and achieving a modest 5% increase in operating income.

DSCR vs Interest Coverage Ratio

The Interest Coverage Ratio (ICR = EBITDA / Interest Expense) is a related but less conservative metric because it ignores principal repayments. A company might have a comfortable ICR of 3.0x but a tight DSCR of 1.1x because its principal repayments are large. DSCR is the superior metric for evaluating term loan affordability because principal repayment is a real cash outflow. ICR is more relevant for evaluating working capital facilities or revolving credit lines where there is no scheduled principal repayment.