Mastia.Consulting
Note N.01 · Coverage · 2026

Two structures, one minimum DSCR, different risk.

Two assets can both report a 1.31x minimum and carry nothing like the same exposure. The minimum does not distinguish them. The shape does.

Illustrative comparison

The profile completes the number.

Both profiles reach 1.31x. In the second, headroom remains narrow for much of the term.

One tight year
DSCR (times)Year 115

Minimum: 1.31x · Threshold: 1.20x

View the values for all 15 years
YearDSCR (times)
11.61x
21.60x
31.31x
41.58x
51.60x
61.62x
71.61x
81.60x
91.59x
101.62x
111.63x
121.61x
131.60x
141.62x
151.64x
Eleven years near the limit
DSCR (times)Year 115

Minimum: 1.31x · Threshold: 1.20x

View the values for all 15 years
YearDSCR (times)
11.60x
21.58x
31.38x
41.36x
51.34x
61.33x
71.31x
81.32x
91.34x
101.35x
111.36x
121.37x
131.38x
141.56x
151.60x

Illustrative profiles. The same minimum, a different duration of exposure.

One number, two very different projects

In the first asset the minimum occurs once, in year three, and every other year sits above 1.55x. In the second, eleven of the fifteen years sit between 1.31x and 1.38x.

Both report the same minimum, but the second has limited headroom for eleven years. A sustained reduction in cash flow could breach the threshold in several periods. Any restriction on distributions would depend on the financing documents.

What the minimum measures

The minimum identifies the period with the least coverage. It is useful for checking a threshold; the full profile adds the timing and duration of limited headroom.

Why it fails

What a single minimum cannot tell you

  • How many periods sit within a small margin of the covenant
  • Whether tight periods occur early or late in the debt term, and what refinancing options exist then
  • Whether the minimum is structural or an artefact of one period's timing

The last one carries more weight than it sounds. A minimum caused by a single reserve account movement or one major maintenance year is a scheduling question. A minimum caused by the shape of the revenue curve is a structuring question. Same number, different conversation, and the model should make clear which one you are having.

A more useful summary setshow the working
min DSCR = min over t of DSCR(t) average DSCR = mean over t of DSCR(t) periods within 0.10x = count of t where DSCR(t) < covenant + 0.10 longest run near limit = max consecutive t where DSCR(t) < covenant + 0.10 breach depth = covenant − min DSCR, where positive Read these measures together. Several consecutive tight periods justify examining the cash-flow assumptions and debt schedule.
The sculpted case

What a sculpted base case tells you

When debt service is set as CFADS divided by a constant target DSCR, coverage equals that target by construction. Gearing limits, repayment constraints and cash-flow adjustments can change that profile. The base case shows how the structure was sized.

To examine resilience, keep the agreed repayment schedule fixed and change the cash-flow assumptions. The resulting profile shows where the original debt structure loses coverage.

What to ask for

Review the base case alongside relevant downside sensitivities, with the closing debt schedule held fixed.

Explore the complete illustrative model

What instead

Report the shape of the downside

Show the full ratio profile across the debt term under stress, mark the covenant, and state how many periods sit within 0.10x of it. One chart and one sentence, and it changes what the committee argues about.

Next step

Send the coverage profile

Share the project context and coverage profile. We can discuss which sensitivities and financing terms need closer review.