Why a late invoice can become a crisis
In construction, the main contractor sits between the client paying for a project and the firms doing much of the work. Specialist subcontractors and suppliers may have to pay workers, buy materials, and cover equipment costs before they receive money for a completed job. That makes the timing of payment as important as the amount: a business can be profitable on paper and still run short of cash.
A wait of 120 days stretches that gap. To keep operating, a supplier may use savings, borrow, or delay paying its own bills. Those options have limits, especially for smaller firms with little cash in reserve and several projects underway.
When the customer itself fails
Carillion’s collapse turned delayed payment into a much larger risk. A supplier owed money could no longer count on the normal flow of payments from its customer. It still faced payroll and bills, while the timing and amount of any recovery through the insolvency process were uncertain. Even a company with viable work elsewhere could be pushed into failure if too much of its cash was tied up in unpaid invoices.
That is how trouble at one large contractor can spread beyond its own workforce and balance sheet. Each supplier may support smaller businesses of its own, so a broken payment chain can pass financial pressure down another level. The practical lesson is stark: a customer’s size does not make its invoices safe, and a long payment delay can leave otherwise viable firms exposed to a collapse they did not cause.
