What it means
Interest coverage asks whether earnings can pay the interest on debt. Debt service coverage asks the tougher question: can cash pay the interest and the principal repayments as they fall due?
A company with a comfortable interest coverage but a loan that amortises quickly can still be unable to meet its schedule, and it is the schedule that triggers default. Lenders therefore focus on DSCR, and they define it carefully in each loan agreement.
The numerator is the cash the business generates before financing. Different lenders define it differently: EBITDA is the simplest; net operating income is standard in property lending; a stricter version deducts tax and the capital expenditure needed to maintain the asset, on the grounds that those are unavoidable.
The denominator is the principal and interest due in the period on all debt, sometimes including lease payments. The period is usually twelve months, either trailing (the last twelve) or forward (the next twelve, on a forecast).
DSCR drives lending decisions in two ways. As an underwriting test, it determines how much a lender will advance: given a property's net operating income and a required DSCR of 1.25, the maximum loan is the amount whose annual debt service equals income divided by 1.25.
As a covenant, it is tested periodically, and a breach gives the lender the right to demand repayment, raise the rate or take control. Businesses monitor their DSCR headroom, the fall in cash flow that would breach the covenant, as a key risk measure.
The ratio has limits. A single year's cash flow can be flattered by working capital movements or one-off receipts.
Forecast DSCR depends on the forecast. And a strong DSCR says nothing about what happens when the loan matures and must be refinanced in full, which is a separate risk.
Lenders read DSCR alongside leverage ratios, asset coverage and the maturity profile.
In practice
Real-world examples.
Example
A hotel with EBITDA of $3 million and annual debt service of $2.5 million has a DSCR of 1.2, which its lender accepts because hotel earnings are seasonal and the ratio is tested on a trailing twelve-month basis.
Example
A wind farm project is financed with debt sized so that forecast DSCR never falls below 1.35 in any year of the loan, even in a low-wind scenario.
Example
A retailer's DSCR falls from 1.6 to 0.9 after a poor year, breaching its covenant; the bank waives the breach in return for a higher margin and a monthly cash reporting requirement.
Think of it
“DSCR is like ensuring your income covers both mortgage interest AND principal payments with room to spare.
Formula
Calculation
DSCR = Cash Available for Debt Service / Total Debt Service
where Cash Available for Debt Service = EBITDA (or Net Operating Income) minus Cash Taxes minus Maintenance Capital Expenditure (definitions vary by lender)
and Total Debt Service = Principal Repayments + Interest Payments due in the period
Worked example 1, a company. A logistics business reports for the year:
- EBITDA: $2,400,000
- Cash taxes paid: $300,000
- Maintenance capital expenditure: $500,000
- Cash available for debt service = $2,400,000 minus $300,000 minus $500,000 = $1,600,000
- Loan principal repaid during the year: $700,000
- Interest paid: $450,000
- Total debt service = $1,150,000
- DSCR = $1,600,000 / $1,150,000 = 1.39
The bank's covenant requires 1.25. Headroom: cash available could fall to $1,437,500 (a decline of 10.2%) before the covenant is breached.
Worked example 2, property lending. An investor wants to buy an office building with net operating income of $800,000 a year. The lender requires a DSCR of 1.30 and offers a 25-year amortising loan at 6.5%, for which the annual payment is 8.2% of the amount borrowed.
- Maximum annual debt service = $800,000 / 1.30 = $615,385
- Maximum loan = $615,385 / 8.2% = $7,504,700
Whatever the building's price, the lender will advance about $7.5 million; the investor must fund the rest with equity.Case study
Seen in the real world.
A family-owned nursing home group borrowed $18 million to build two new homes, with a DSCR covenant of 1.25 tested annually on EBITDA less maintenance capital expenditure. In year three, a change in government funding rates cut revenue by 6% while agency staffing costs rose sharply. EBITDA fell 22%.
The group's DSCR dropped to 1.05, and it breached the covenant. The bank's initial response was to demand a repayment plan the group could not fund. The group's advisers produced a forward-looking analysis showing that the new homes, then at 60% occupancy, would reach 90% within eighteen months, restoring DSCR to 1.4, and proposed an interest-only period of twelve months to bridge the gap.
The bank agreed, in exchange for a personal guarantee from the owners and a covenant reset to 1.15 for two years. Occupancy rose as forecast, the covenant was restored, and the group now runs a rolling 24-month DSCR forecast that is reviewed at every board meeting, with a policy of never letting forecast headroom fall below 15%.
Watch out
Common mistakes.
- Using accounting profit instead of cash. Depreciation, accruals and working capital movements can make profit and cash diverge sharply.
- Ignoring principal repayments and looking only at interest coverage. Amortising loans fail on principal, not interest.
- Reading the covenant definition loosely. Each loan agreement defines cash available and debt service its own way, and the covenant is tested on that definition.
Questions
People also ask.
What is a good DSCR?
Lenders typically require 1.20 to 1.50 depending on the stability of the cash flow. Above 2.0 indicates substantial capacity to borrow more.
How is DSCR different from interest coverage?
Interest coverage divides earnings by interest only. DSCR divides cash by interest plus principal repayments, which is what the borrower must actually pay.
What happens if DSCR falls below 1.0?
The business is not generating enough cash to meet its debt payments and must draw on reserves, sell assets, raise money or restructure. If a covenant is breached, the lender gains rights it did not have before.
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