Covenant headroom: the number your lenders check first
Leverage, interest cover and minimum liquidity are tested quarterly, but they should be monitored weekly. How to model headroom continuously and stop discovering problems at the test date.
Financial covenants are tested quarterly. That is the only reason most finance teams look at them quarterly — and it is why covenant conversations with lenders so often start late.
The three you almost certainly have
Facility agreements vary, but in mid-market lending the same tests recur.
- Net leverage. Net debt over EBITDA, usually on a rolling twelve-month basis, with a ratchet that steps down over the life of the facility.
- Interest cover. EBITDA over net finance charges. The one most sensitive to rate movements, and the one that has caused most of the recent amendments we have seen.
- Minimum liquidity. A floor on cash plus undrawn committed facilities, sometimes tested continuously rather than at quarter end.
Each is defined precisely in your agreement, and the definitions rarely match your statutory numbers. Adjusted EBITDA usually has a list of permitted add-backs. Net debt may or may not include leases depending on when the facility was signed.
Model the definition, not the accounts
The most common mistake is calculating covenants from the management accounts and assuming they match. They do not. The definition in the agreement is the only one that counts, and it should be entered once, precisely, with the add-backs and exclusions written out.
Once the definition is codified, headroom can be recalculated whenever the underlying data changes — which is daily, not quarterly.
Project it forward
A covenant that passes today can fail at the next test date, and knowing that early is the whole point. Run each test against your rolling forecast so you can see the projected ratio at the next two test dates, not just the current one.
Set a headroom threshold — 15% is a reasonable starting point — and alert on the projection crossing it, not on the actual. By the time the actual has breached, your options have narrowed considerably.
Prepare the conversation early
If a projection shows tightening headroom two quarters out, you have real choices: accelerate collections, defer discretionary capex, draw or repay differently, or open an amendment conversation with your lender from a position of having spotted it yourself.
Lenders respond very differently to a borrower who brings them a forecast in March than to one who reports a breach in June. The technical work of monitoring headroom is not difficult. Doing it on the right cadence is what buys you the options.
A practical checklist
- Codify every covenant definition from the agreement, including add-backs.
- Recalculate on the same reconciled data as your cash position.
- Project each test to the next two test dates on your live forecast.
- Alert on projected headroom, not actual.
- Keep every prior calculation, so the compliance certificate can be reproduced.