What the Wait Costs You
The wait has a price in interest, in work not taken, and in attention. Only the first is usually counted, and it is the smallest.
Theirswho controls this stretch
Waiting sixty days for money you earned costs three things: the cost of the money, the work you could not take because the cash was tied up, and the attention the invoice consumes.
The delay in “What the Wait Costs You” needs separate timestamps for work, approval, invoicing and settlement. Teams reviewing a clearer route to employee scheduling software for employee scheduling software can strengthen the work-record part of that chain without pretending to explain what happened inside the customer’s accounts-payable process.
Most suppliers count the first, which is the smallest.
As a separate reference point for “What the Wait Costs You”, see Dun & Bradstreet business resources. Confirm current legal, tax and accounting requirements with a qualified adviser where necessary.
The cost of the money
Interest on an overdraft or facility, or the return foregone. On £10,000 for sixty days at twelve per cent, roughly £197.
| Cost of waiting | How it appears |
|---|---|
| Interest on the borrowing | A line on a bank statement |
| Work not taken for lack of cash | Nothing, anywhere |
| Attention spent on the invoice | Nothing, anywhere |
Which is why late payment is so often called annoying rather than expensive.
Calculable, modest, and the one everybody thinks of.
The work not taken
The larger cost for most small businesses. Cash tied up in receivables is capacity not deployed: materials not bought, a subcontractor not engaged, a job declined because the month could not be funded.
Nobody invoices for this and it is usually the biggest number.
The attention
An unpaid invoice occupies thought out of proportion to its size. It interrupts work, it colours a relationship, and it generates administration that is billable to nobody.
Three hours across a quarter is a conservative estimate, and three hours of a small supplier's time is not nothing.
Why the first is counted and the others are not
Because it has a formula. The others require a judgement, and judgements get rounded to zero.
Making the second visible
A simple measure: receivables outstanding, as a share of a month's revenue. If a month and a half of income is permanently in other people's systems, that is the size of the problem.
The forecast that helps
Not a spreadsheet of terms. A spreadsheet of expected actual dates, built from each customer's real behaviour: approval time plus run dates.
It is more accurate, it is built from the records described earlier here, and it changes what you can commit to.
The buffer
The practical answer for most small suppliers: enough cash to survive the gap, built deliberately rather than hoped for.
It is dull, it is slow to accumulate, and it is what converts a late payment from a crisis into an annoyance.
What the buffer costs
The return on money held idle. Real, and much less than the cost of being unable to meet a payroll.
Invoice finance as an alternative
Selling or borrowing against receivables, which converts the wait into a fee. It has its own note later here.
It is expensive compared with a buffer and cheap compared with a failure.
The number worth tracking
Average days from work done to money received, per customer, over a year.
Not terms. Not promises. What actually happened, which is the only figure that predicts anything.
Why only one of the three is ever counted
Interest on an overdraft arrives as a line on a statement. The work not taken and the attention consumed arrive as nothing at all, so a supplier that has lost a month of capacity to waiting records a cost of a few pounds.
That is why late payment is so often described as annoying rather than expensive. The expensive parts leave no trace in the accounts.
Making them visible does not require a system. It requires noting, once or twice, what was declined or delayed because the money for it was sitting in somebody else's approval queue — and that note is usually enough to change how the next job's terms are negotiated.
The forecast that is actually useful
A cash forecast built on payment terms is a work of fiction. One built on observed payment behaviour per customer is a planning document.
The difference is mechanical: instead of assuming thirty days because that is what was agreed, use the figure that customer has actually produced across its last several invoices, and treat the run dates as the dates money arrives.
The result is less comfortable and considerably more accurate. It also makes a specific decision possible — whether this business can afford to take a large job from a slow customer — which is unanswerable from terms and straightforward from history.
Suppliers who forecast on terms are repeatedly surprised by months that were entirely predictable. The information needed was already in their own bank statements.
The number worth keeping
One figure summarises all of this: the average gap, across the year, between doing the work and being paid for it.
It is calculable from records you already have, it is specific to your business rather than to any industry claim, and it is the figure that tells you how much working capital this business needs in order to operate at its current size.
Suppliers who know it make different decisions about deposits, stages and which jobs to accept. Suppliers who do not discover the same information in a month when the money is not there.
What changes when it is measured
Customers sort themselves into those worth the wait and those who are not, and the sorting is factual rather than emotional.
That is the point of the whole exercise.