Debt Service Coverage Ratio: Can Profit Cover Interest and Repayments Both?

The debt service coverage ratio asks a blunt question that the more popular interest coverage ratio skips: can the business pay its lenders everything that falls due this year, not just the interest? A company can look comfortable on interest and still be staring at a repayment it has no cash for. DSCR is the number that catches that gap.

We’ll go through how the ratio is built, why there are at least three versions floating around, what lenders usually treat as safe, and how to read it when a listed company prints it in its results. All the company numbers below are hypothetical, used only to show the arithmetic.

What the debt service coverage ratio actually measures

Debt service means the cash a borrower has to hand over to lenders in a period: interest, plus the principal instalments that come due. Investopedia’s DSCR explainer describes total debt service as the current debt obligations due in the coming year, including interest, principal, sinking fund and lease payments, which covers short-term debt and the current portion of long-term debt on the balance sheet.

The ratio puts operating earnings on top and that debt service at the bottom. A reading of 1.0 means earnings exactly match what lenders are owed for the period. Above 1.0, there is a cushion. Below 1.0, the company has to find the shortfall somewhere else, from cash in the bank, a fresh loan, an asset sale or the promoters.

That is the whole idea. The complications come from what goes in the numerator.

Three formulas, one idea

Different users build DSCR differently, and the version matters more than most investors realise.

The SEBI-suggested formula for listed debt issuers

When SEBI laid down the format for financial results of listed entities that have listed debt securities, in its circular of November 27, 2015 (CIR/IMD/DF1/9/2015), it included the debt service coverage ratio and the interest service coverage ratio as line items in the half-yearly results formats. Its suggested definitions were:

• ISCR = Earnings before Interest and Tax / Interest Expense
• DSCR = Earnings before Interest and Tax / (Interest + Principal Repayment)

The same note added that the formula actually used to compute the ratios had to be disclosed in the footnotes. That line is the useful bit for anyone reading results today: the company is meant to tell you how it got its number, so read the footnote before comparing two companies.

The banker’s EBITDA version

Commercial lenders tend to start from EBITDA. The Corporate Finance Institute’s guide to DSCR says the most common formula uses EBITDA as a proxy for cash flow and subtracts cash taxes, then divides by principal due in the period plus interest. The reasoning it gives is straightforward. Depreciation and amortisation are non-cash charges, so that money is actually available to pay lenders. Cash taxes come out because tax dues generally rank ahead of even senior secured creditors.

CFI also explains why lenders often avoid the operating cash flow line from the cash flow statement: it swings with working capital moves like payable days, inventory and collections, so it doesn’t always show what the core business consistently earns.

The tax-adjusted denominator

Investopedia points to another wrinkle. Interest is tax-deductible but principal repayment is not, so it offers a refinement where total debt service is computed as interest multiplied by (1 minus the tax rate), plus principal. You’ll see this less often in Indian results, but it is worth knowing it exists if an analyst report quotes a DSCR that doesn’t match the company’s own.

Two companies can both report a DSCR of 1.5 and mean completely different things, because one used EBIT and the other used EBITDA minus taxes. The footnote is where the real comparison starts.

A worked example with one company, three answers

Take a hypothetical manufacturer, call it XYZ Industries, for a full financial year. All figures in ₹ crore:

Debt service is interest plus principal: 60 + 100 = ₹160 crore.

SEBI-suggested DSCR (EBIT basis): 200 / 160 = 1.25x.

Lender-style DSCR (EBITDA minus cash taxes): (240 − 30) / 160 = 210 / 160 = about 1.31x.

Tax-adjusted denominator, assuming a 25% tax rate: debt service becomes 60 × 0.75 + 100 = 45 + 100 = ₹145 crore, and EBIT of 200 / 145 gives about 1.38x.

Same company, same year, and the ratio ranges from 1.25x to 1.38x depending on the recipe. None of these is wrong. They answer slightly different questions. What would be wrong is comparing XYZ’s 1.38x from one source with a rival’s 1.25x from another and concluding XYZ is safer.

For completeness, XYZ’s interest service coverage on SEBI’s definition is EBIT / interest = 200 / 60, roughly 3.3x. Hold on to that number, because it sets up the next point.

Why a strong interest cover can hide a weak DSCR

We’ve covered the interest coverage ratio separately, and it is a fine first check. Investopedia makes the key distinction clearly: interest coverage considers only interest, not the principal payments lenders may require, while DSCR includes principal, which is why it calls DSCR the more robust indicator.

Here is how that plays out. Imagine a second hypothetical company, ABC Logistics:

• EBIT: ₹150 crore
• Interest: ₹20 crore
• Principal due this year: ₹180 crore

Interest coverage is 150 / 20 = 7.5x, which looks excellent. DSCR on the EBIT basis is 150 / (20 + 180) = 150 / 200 = 0.75x. ABC can pay its interest seven times over and still cannot meet this year’s repayments from earnings. Maybe a large term loan is maturing, or a bond is coming up for redemption. Either way, the company has to refinance, dip into cash or raise money.

This happens more than you’d think with businesses that borrowed cheaply and now face a lumpy maturity. A low interest bill flatters the interest cover. DSCR doesn’t care how cheap the loan was; it cares that it has to be repaid.

What counts as a comfortable DSCR

There is no single legal threshold for companies, so treat the ranges below as lender practice, not rules:

• CFI says anything below 1x is considered very weak, that most commercial banks and equipment finance firms want to see at least 1.25x but strongly prefer something closer to 2x or more, and that many small and mid-market lenders set minimum DSC covenants at not less than 1.25x.
• Investopedia says a DSCR of at least 2.00 is typically considered very strong even though there is no industry standard, and that many lenders set minimums of 1.2 to 1.25.

So a reading of around 1.25x is the line many lenders draw, and around 2x is where people start calling it strong. These figures come from general lending practice described by those two sources, not from any Indian regulation, and individual loan agreements can set their own covenant levels.

The covenant angle matters for shareholders too. Investopedia notes that lenders may require a borrower to maintain a minimum DSCR while a loan is outstanding. Breaching that kind of covenant can give lenders rights under the loan agreement, and that is the sort of event that shows up in a company’s disclosures and in rating agency commentary.

Stress-testing the number yourself

A single DSCR tells you where a company stands. The more useful exercise is asking how much room it has before it slips under 1x. Go back to XYZ Industries on the lender-style basis, 210 / 160 = about 1.31x.

• Earnings drop 20%: if EBITDA minus cash taxes falls from 210 to 168, DSCR becomes 168 / 160 = 1.05x. Still above water, but barely.
• A bullet repayment lands: suppose ₹300 crore of principal falls due next year instead of ₹100 crore. Debt service becomes 60 + 300 = 360, and 210 / 360 is about 0.58x.
• Break-even earnings: at the current debt service of ₹160 crore, XYZ needs earnings of at least ₹160 crore on this basis to cover it. Earnings of 210 give it about 24% headroom, since (210 − 160) / 210 is roughly 0.24.

You don’t need a spreadsheet model for this. Three lines of arithmetic tell you whether a weak quarter is a nuisance or a genuine problem.

The question isn’t whether DSCR is above 1 today. It’s how bad a year has to get before it isn’t.

Reading DSCR in Indian quarterly results

If you follow a company’s results through our guide on how to analyse quarterly results, DSCR fits into the balance-sheet and borrowing part of that review. A few practical habits help:

1. Check which formula the company used. SEBI’s 2015 format asked for the formula used to be disclosed in footnotes. If one company uses EBIT and another uses EBITDA, adjust before you compare.
2. Watch the trend, not one print. A DSCR that slides from 2x to 1.3x over a few periods says more than any single figure.
3. Look at the maturity schedule. The principal number in the denominator depends on what falls due in the period. A company can look fine this year with a big repayment waiting next year. The borrowings note in the annual report usually shows the repayment profile.
4. Read it alongside leverage and liquidity. CFI makes the point that coverage measures are never taken in isolation and are used with leverage metrics like debt-to-equity and liquidity metrics like the current ratio. A low DSCR with lots of cash on the balance sheet is a different story from a low DSCR with an empty bank account.
5. Don’t forget leases. Wikipedia’s DSCR article includes lease payments in debt service in its general formula. If a company has large lease commitments, our piece on lease liabilities in results explains why they behave like debt.

Where DSCR falls short

It is a good ratio, not a perfect one.

The EBITDA numerator ignores capital spending. CFI notes that some conservative lenders adjust EBITDA for capex-heavy businesses, because cash spent on equipment to stay competitive is cash that can no longer service debt. A telecom or steel company can post a healthy EBITDA-based DSCR while it is burning cash on capex.

The ratio is also backward-looking when built from reported numbers. It tells you how last year’s earnings compared with last year’s debt service. The repayment schedule ahead may look very different.

And it says nothing about refinancing access. Plenty of strong companies roll over maturing debt routinely and never pay it from earnings. A DSCR below 1x for a well-rated company with easy market access is less alarming than the same number for a small, stretched borrower. That judgement needs context the ratio can’t give you.

The short version

Interest coverage tells you whether a company can afford its loans. The debt service coverage ratio tells you whether it can afford to pay them back on schedule. Check the formula in the footnote, run a quick stress test, and look at what’s maturing next before you take comfort from a number above 1.

Disclaimer: This article is for educational purposes only and is not investment advice. The companies and figures in the examples are hypothetical. Please do your own research or consult a SEBI-registered investment adviser before making any investment decision.