Project Finance · Question

What is a debt service coverage ratio and why does it matter for my project?

Short answer

The debt service coverage ratio compares the cash your project is expected to generate in a year with the interest and loan instalments due in that same year. A figure above one means cash covers repayments with something to spare. Lenders rely on it because it tests whether repayment comes from the project itself, and how much cushion exists if sales fall short.

In more detail

Picture a new cold storage facility. After meeting running costs, it earns a certain operating surplus each year. Against that surplus stand the interest and principal instalments the lender expects. Repayment cover simply asks how many times the surplus can pay those instalments. A reading just above one means almost nothing is spare; a comfortable reading leaves room for a bad season.

Lenders usually test the cover for every repayment year, not just the average. The weakest year matters most, because a single year of shortfall is when an account first slips. They also look at the average across the loan life, as a check on overall health.

Cash for this purpose is the surplus after operating costs and taxes, with non-cash charges such as depreciation added back. Definitions vary slightly between lenders, so ask which one your lender uses, and keep your projections consistent with it.

A packaging plant with a heavy first repayment year

A promoter plans a plant where instalments are equal each year, but sales build slowly. In the early years, the surplus is small against full instalments, so cover looks thin even though later years are healthy. The lender suggests a longer moratorium or instalments that start smaller and rise, so cover is steadier across the years.

Better cover comes from higher expected surplus, longer repayment periods, a smaller loan or more promoter money. Be wary of reaching comfort only by assuming optimistic sales, since lenders challenge those assumptions. Test your own plan with lower sales and higher costs before submission, and see whether cover stays acceptable.

The level a lender expects depends on the sector and its risk view. Ask the lender for its minimum, and do not rely on a generic figure.

Key points

It measures how comfortably project cash covers interest and instalments due in a year.
Lenders look at each repayment year, especially the weakest one, as well as the average.
Definitions of cash vary, so use the same basis as your lender.
Moratorium, tenure and promoter contribution can all be adjusted to improve cover.
Stress your projections with lower sales before the lender does.

Who this applies to

Promoters preparing a project report for a term loan.
Owners who want to know why a lender trimmed the loan amount or tenure.
Finance heads building projected cash flows for expansion.

Last reviewed 3 October 2026

This answer is general information, not advice on your particular case. Terms, eligibility, and requirements change, so check the current position with the relevant institution or authority.