What it means
The ratio is a safety-margin measure rather than a profitability measure. It asks a single question: if earnings fell, how far could they fall before the company struggled to pay the interest on its borrowings?
EBITDA is used instead of net profit because interest is paid out of cash generated by trading, and depreciation and amortisation are non-cash charges. That makes EBITDA a rough proxy for cash available to service debt, though it is a rough proxy and not an exact one.
There is a common variant that includes lease payments on both sides of the fraction. Because operating leases are a fixed obligation much like interest, adding lease costs to both the numerator and the denominator gives a stricter and generally more honest picture for asset-light businesses that rent their premises and equipment.
Lenders usually set a covenant, commonly somewhere between 2.0x and 4.0x depending on the industry and the cyclicality of earnings. Breaching it can trigger higher margins, restrictions on dividends, or in serious cases the loan becoming repayable on demand.
The main weakness is that EBITDA ignores capital expenditure and tax, both of which are real cash outflows. A capital-intensive business can show a flattering coverage ratio while spending everything it earns on replacing equipment, so read the ratio alongside free cash flow.
In practice
Real-world examples.
Example
A family-owned hotel group refinances and its bank sets a covenant of 2.5x on a lease-adjusted basis. Because hotel earnings swing with the season, the finance director models a bad winter to check the ratio still holds at the quarterly test date.
Example
A software company reports EBITDA of $6,000,000 against interest of $500,000, giving 12.0x coverage. Its lender is relaxed about the debt but focuses instead on customer concentration, since the ratio reveals little about revenue durability.
Example
A haulage firm shows coverage of 4.0x but spends nearly all its EBITDA replacing trucks. Its lender switches to a cash-flow-based test, because the headline coverage ratio overstated how much money was genuinely available for interest.
Formula
Calculation
EBITDA-to-Interest Coverage Ratio = (EBITDA + Lease Payments) / (Interest Expense + Lease Payments)
In its simplest form, the ratio is just EBITDA / Interest Expense.
A commercial laundry business generates EBITDA of $4,500,000 and pays interest of $900,000. The basic ratio is $4,500,000 / $900,000 = 5.0x. Including its $600,000 of annual lease payments, the numerator becomes $4,500,000 + $600,000 = $5,100,000 and the denominator becomes $900,000 + $600,000 = $1,500,000, giving $5,100,000 / $1,500,000 = 3.4x.
Its loan covenant requires at least 3.0x on the lease-adjusted basis, so the company passes with a margin. If EBITDA fell 20% to $4,500,000 x 0.80 = $3,600,000, the ratio would become ($3,600,000 + $600,000) / $1,500,000 = 2.8x, which is a breach.Case study
Seen in the real world.
Delcott Packaging is a fictional, illustrative manufacturer that borrowed $12,000,000 to buy a second production line. At the time of the loan it produced EBITDA of $4,500,000, paid interest of $900,000 and had lease payments of $600,000, giving lease-adjusted coverage of 3.4x against a covenant of 3.0x.
Two years later a major customer moved half its volume to a competitor and EBITDA dropped 20% to $3,600,000. The lease-adjusted ratio fell to 2.8x, which put Delcott in breach at the next quarterly test even though it had never missed an interest payment.
The lender agreed to waive the breach in exchange for a higher margin and a pause on dividends until coverage returned above 3.0x. In this illustrative case the covenant did exactly what it was designed to do: it flagged the deterioration and forced a conversation while the business still had options.
Watch out
Common mistakes.
- Treating EBITDA as cash available for interest. It excludes tax, working capital movements and capital expenditure, all of which consume cash before any is left to pay lenders.
- Comparing coverage ratios across industries without adjustment. A utility with stable, contracted revenue can safely run at 3.0x, whereas a cyclical manufacturer at the same level is far closer to trouble.
- Calculating the ratio on the wrong definition of EBITDA. Loan agreements usually specify an adjusted EBITDA with named add-backs, and using the statutory figure can produce a very different answer from the one the bank will test.
Questions
People also ask.
What counts as a good coverage ratio?
It depends heavily on the industry, but many lenders look for at least 3.0x, with anything below 2.0x usually seen as tight.
How is this different from the times interest earned ratio?
Times interest earned uses EBIT, which is after depreciation and amortisation, so it produces a lower and more conservative figure than the EBITDA version.
Why include lease payments in the calculation?
Because rent on premises or equipment is a fixed obligation the business must meet just like interest, and ignoring it flatters companies that lease rather than buy.
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