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Interest cover: what it means for business borrowing

Interest cover meaning: how many times profit or rent covers interest. The formula, a UK example, interest cover vs DSCR, and how lenders use it in covenants.

In this guide
  1. The formula
  2. Interest cover on let property
  3. Interest cover or DSCR?
  4. How interest cover affects borrowing
  5. Related terms
  6. Sources

Interest cover, or the interest cover ratio (ICR), measures how many times a business's profit covers the interest it pays. Lenders use it to judge whether borrowing is affordable and often set a minimum level as a loan covenant.

The formula

Interest cover = operating profit (or EBITDA) ÷ annual interest.

A company with operating profit of £180,000 and interest of £45,000 a year has interest cover of 4 times. If profit fell to £90,000, cover would drop to 2 times.

Interest cover on let property

For investment property, lenders use rent instead of profit: ICR = annual rent ÷ annual interest. A unit let at £48,000 a year with interest of £30,000 has an ICR of 1.6, or 160%. Lenders usually test this at a stressed interest rate rather than the pay rate, so a loan can fail the test even when today's rent comfortably pays today's interest.

Interest cover or DSCR?

Interest cover looks only at interest. The debt service coverage ratio (DSCR) compares cash flow with interest and capital repayments together, so it is the stricter test for a repayment loan. Lenders often use interest cover for interest-only and property loans, and DSCR for amortising business loans.

£212,300A transaction we arrangedApproved, then nearly lost at completion. £212K consolidated.A property-title requirement threatened a consolidation deal at the last hurdle. We worked it through and kept the structure intact.

How interest cover affects borrowing

  • It can cap the loan: on a let property, rent and the stressed rate often limit the loan below the LTV maximum.
  • It appears as a covenant: falling below the agreed level can be a breach, even with every payment made on time.
  • Rising rates reduce cover on variable-rate debt, so lenders look at headroom.

See commercial investment mortgages for rent-based lending, or test a business loan with our DSCR calculator. We search the market for lenders whose affordability tests suit your figures. Any broker fee depends on the lender, with nothing to pay upfront.

Sources

This guide is general information, not financial advice. Lenders set their own criteria, rates and terms, and all finance is subject to status.

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FAQs

Common questions

What is a good interest cover ratio?

The higher the better: a ratio of 3 or more means profit is three times interest. Each lender sets its own minimum by product and sector, so check the covenant in your offer rather than a general rule.

How do you calculate interest cover?

Divide operating profit (or EBITDA) by the year's interest. £150,000 of profit and £50,000 of interest gives interest cover of 3 times. For a let property, divide annual rent by annual interest.

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