The Credit Line a Company Never Uses Is the One That Matters
A revolving facility is a pre agreed right to borrow, drawn and repaid as needed. Its value is availability, and availability depends on conditions that bite exactly when the money is needed.
What It Is
A revolving credit facility is a committed agreement allowing a company to borrow up to a limit, repay, and borrow again, for the term of the facility. The company pays a commitment fee on the undrawn portion and interest on what it draws.
It is the corporate equivalent of an overdraft, and for most companies it is the primary liquidity backstop.
Why Paying for Unused Capacity Is Rational
A commitment fee on money not borrowed looks like waste. It is insurance, and the thing being insured is access to funding at a moment when markets may not provide it.
Committed capacity is worth most in exactly the conditions where uncommitted funding disappears. That is the whole point of paying for it in advance.
The distinction between committed and uncommitted matters enormously here. A committed facility must be honoured if the company meets its conditions. An uncommitted line can be withdrawn at the lender discretion, which means it may vanish when needed.
What Makes Availability Conditional
| Condition | Risk |
|---|---|
| Financial covenants | Tighten as performance deteriorates |
| Material adverse change clause | Lender may refuse to fund |
| Representations at drawdown | Must be true each time |
| Borrowing base | Limit falls with collateral value |
Covenants are the common mechanism. A facility typically requires leverage below a threshold and interest cover above one. A company whose earnings fall breaches those tests, and breach can block further drawing or trigger repayment of what is drawn.
The timing is the cruelty. Covenants bind when performance is deteriorating, which is when the facility is needed. A liquidity backstop that becomes unavailable during difficulty is providing much less protection than the headline suggests.
The Borrowing Base Version
Asset based revolvers size the limit to eligible collateral, typically a percentage of receivables and inventory. The available amount recalculates regularly.
That structure has the same procyclical property. A company with falling sales has fewer receivables and therefore a smaller borrowing base, so availability shrinks alongside the business.
Drawing as a Signal
Fully drawing a revolver attracts attention, because companies normally use them for working capital swings rather than for permanent funding.
During periods of general stress, companies have drawn facilities in full precisely because they feared the money would become unavailable later. That is rational individually and destabilising collectively, since it converts committed lines into actual bank funding demands simultaneously.
What to Check
The useful questions about any company liquidity are how much is committed rather than uncommitted, when the facility matures, how much headroom exists under the covenants, and whether any condition allows the lender to refuse funding.
Maturity deserves emphasis. A facility expiring within a year is not a reliable backstop, because refinancing it depends on conditions at that time, and the need to refinance concentrates risk at a specific date.
The Bottom Line
A revolver is committed liquidity paid for through fees on unused capacity, which is worth it because uncommitted funding disappears under stress. Its protection depends on covenants and conditions that tighten as performance falls, so the practical question is never the size of the facility but how much of it remains available in the scenario that would require using it.