When you apply for a term loan, the credit team asks one question before almost any other: can this business pay the instalments out of its own cash flow? The number they use to answer it is the debt service coverage ratio, or DSCR. Get it wrong in your projections, or structure the loan badly, and a sound business can look unbankable on paper.
This guide explains how DSCR is calculated, how lenders read it, and what you can change before you apply.
What is DSCR?
DSCR compares the cash a business or project generates in a year with what it owes its lenders that year (interest plus principal). The formula most banks use in project appraisal is:
DSCR = (PAT + depreciation + other non-cash charges + interest on the term loan) ÷ (interest on the term loan + principal repaid)
- PAT (profit after tax) is calculated after charging interest, so the interest is added back in the numerator. That gives the cash available to pay both interest and principal.
- Depreciation and other non-cash charges (such as amortisation of preliminary expenses) are added back because no cash leaves the business for them.
- The denominator is the total debt service due in the year.
A DSCR of 1.00 means every rupee of cash goes to the lender, with nothing left over. Below 1.00, the projected cash does not cover the instalments. Lenders want a cushion above 1.00, because projections rarely play out exactly.
If you have other term loans, a lender will usually look at total debt service, so include their interest and principal too.
Average DSCR vs minimum DSCR
Lenders look at two numbers, and both matter.
- Average DSCR shows whether the project can repay over the whole loan. Banks calculate it in different ways. One common method is the total of the numerators divided by the total of the denominators over the repayment years. Another is the simple mean of each year's ratio. The two usually come out close, but check which one your lender uses.
- Minimum DSCR shows the tightest single year. A strong average can hide one weak year, often the first year of repayment, when interest on the full loan and the first principal instalments fall due together while sales are still ramping up.
Years that carry only moratorium interest (no principal) are usually left out of the average, because a ratio for a year still under construction is not meaningful.
What DSCR do lenders want?
RBI does not prescribe a single minimum DSCR for ordinary term loans. Each bank or NBFC sets thresholds in its credit policy, and they differ by scheme, sector, loan size and borrower. Two published examples:
| Scheme | DSCR requirement |
|---|---|
| SBI Surya Shakti solar finance | Average gross DSCR of at least 1.20, counting all term loans |
| Bank of Baroda Arogyadham (healthcare) | Average 1.75, and not below 1.25 in any year |
Beyond published schemes, here is what we typically see in the market (this is market practice, not a regulation, and individual lenders will differ):
- For ordinary MSME term loans, many lenders are comfortable with an average DSCR in the range of about 1.25 to 1.50, with no year falling much below about 1.10 to 1.20.
- Lenders tend to ask for more headroom where cash flows are volatile (new units, cyclical sectors, projects with long gestation) and may accept less where cash flows are contracted and predictable.
- A DSCR that is very high only because projections are aggressive does not help. Credit teams test the assumptions, not just the ratio.
Our project report guide explains how DSCR fits alongside cost of project, means of finance, break-even and sensitivity analysis.
Worked example 1: an MSME machinery term loan
A manufacturer borrows ₹2 crore to buy machinery. Assumptions for the illustration: interest at 10% a year on the opening balance, repayment over 5 years in equal principal instalments of ₹40 lakh a year. PAT and depreciation are taken from the projected profit and loss account.
| Year | PAT | Depreciation | Interest | Cash available | Principal | Debt service | DSCR |
|---|---|---|---|---|---|---|---|
| 1 | ₹30 lakh | ₹25 lakh | ₹20 lakh | ₹75 lakh | ₹40 lakh | ₹60 lakh | 1.25 |
| 2 | ₹34 lakh | ₹22 lakh | ₹16 lakh | ₹72 lakh | ₹40 lakh | ₹56 lakh | 1.29 |
| 3 | ₹38 lakh | ₹19 lakh | ₹12 lakh | ₹69 lakh | ₹40 lakh | ₹52 lakh | 1.33 |
| 4 | ₹40 lakh | ₹17 lakh | ₹8 lakh | ₹65 lakh | ₹40 lakh | ₹48 lakh | 1.35 |
| 5 | ₹42 lakh | ₹15 lakh | ₹4 lakh | ₹61 lakh | ₹40 lakh | ₹44 lakh | 1.39 |
- Average DSCR (aggregate method): ₹342 lakh ÷ ₹260 lakh = 1.32.
- Minimum DSCR: 1.25, in year 1.
On an average of 1.32 the file looks reasonable. The weak point is year 1. If the lender's floor is 1.25, there is no headroom at all: a small dip in year-1 sales would push the account below the bar.
Worked example 2: a real-estate project
Construction finance for a residential project is repaid mainly from sales collections, not from steady annual profits. Lenders still test cover, but they build it from the project's cash flow. An illustration for a ₹30 crore construction loan, with year 1 under moratorium:
| Year 2 | Year 3 | |
|---|---|---|
| Collections from buyers | ₹45 crore | ₹55 crore |
| Less: construction, approvals and other project costs | ₹30 crore | ₹25 crore |
| Cash available for debt service | ₹15 crore | ₹30 crore |
| Principal repaid | ₹10 crore | ₹20 crore |
| Interest | ₹3 crore | ₹2 crore |
| Cover (DSCR) | 1.15 | 1.36 |
Over the two repayment years the cover is ₹45 crore ÷ ₹35 crore, about 1.29. Year 2 is tight because the lender wants principal back while construction spending is still high. In real estate, lenders also look at:
- Sales velocity and price assumptions, and what happens if bookings slow down
- the RERA separate-account rule, which restricts how buyer collections can be used. See our guide on the MahaRERA project account and construction finance
- escrow of collections, so that repayments come out before money flows back to the developer
- the date of commencement of commercial operations (DCCO) and how much a delay would cost. RBI's 2025 project finance rules tightened how much lenders can defer it, which our guide to how lenders assess construction finance covers
How to improve DSCR before you apply
The ratio depends as much on how the loan is structured as on your profits. These are the levers worth testing.
1. Tenor
A longer repayment period spreads the principal over more years. In example 1, repaying the ₹2 crore over 7 years instead of 5 cuts year-1 principal to about ₹28.6 lakh, and year-1 DSCR rises from 1.25 to about 1.54. The trade-off is more total interest, and lenders will not stretch tenor beyond the useful life of the asset or the scheme's maximum. SBI's Surya Shakti scheme, for example, caps tenor at 10 years for captive projects and 15 years for others, including the initial moratorium.
2. Moratorium
A moratorium matched to the real ramp-up period means principal starts only once the plant or project is earning. Decide whether interest during the moratorium will be paid (you need cash for it, often from promoter funds or built into the project cost) or capitalised (added to the loan, which makes later instalments bigger).
3. Repayment structure
Equal principal instalments put the heaviest debt service in the first repayment year. An EMI structure flattens it. A step-up schedule (smaller instalments early, larger later) can match a ramp-up even better, if the lender's policy allows it. Quarterly instalments can suit businesses whose collections are lumpy.
4. Promoter contribution
More of your own money means a smaller loan. In example 1, a ₹40 lakh higher promoter contribution brings the loan to ₹1.6 crore: year-1 principal falls to ₹32 lakh and interest to ₹16 lakh. Before any tax effect, year-1 DSCR moves from 1.25 to about 1.56. Lenders also check that your contribution comes from identifiable sources.
5. Clean up other debt
High-cost unsecured loans, vehicle loans and personal borrowings used in the business all add to debt service. Repaying or refinancing them before you apply can lift the ratio.
6. Stress-test the rate
The RBI raised the repo rate to 5.50% on 7 October 2026 and moved its stance to calibrated tightening. If your loan is linked to an external benchmark, run your DSCR at today's rate and at a higher one. Our post on the repo rate hike shows what the change means for business loans.
Use the DSCR calculator
Our project DSCR calculator builds the full repayment schedule from your loan amount, rate, tenor, moratorium and repayment type, then works out the year-wise, average and minimum DSCR using the formula above. You can switch between EMI and equal principal instalments, choose whether moratorium interest is paid or capitalised, and set the threshold to your lender's. Try a few structures before you settle on the one to propose.
How Biz Corp Solutions helps
We help businesses and developers test their projections, structure the term loan (tenor, moratorium, repayment pattern and promoter contribution) and approach suitable banks, NBFCs and financial institutions with a lender-ready file. Lenders make their own appraisal and credit decision. Explore our project funding and construction finance services.
This article is based on lender scheme pages and RBI material available up to 21 October 2026. The worked examples are illustrations, not offers. DSCR thresholds are set by each lender's policy and your sanction letter.