The most revealing number in the latest research on late payment is not the size of the debt. It is how many small firms have stopped trying to collect it.
Nearly one in five UK SMEs now writes off unpaid invoices entirely, according to research by the insurance and risk group Howden, reported by Credit Connect. Not renegotiates, not escalates, not takes to court. Writes off, and moves on.
That is a rational decision made by people who have run the arithmetic on their own time, and it is also a measure of how thoroughly the collection process has failed. A business that abandons money it is legally owed has concluded that pursuing it costs more than the debt is worth.
The bill nobody sends
The headline economic figure comes from separate research commissioned by the Department for Business and Trade and the Office of the Small Business Commissioner, carried out by London Economics. It estimates that late payments cost the UK economy almost £11 billion a year.
Underneath that sit the components. More than 1.5 million businesses, 28% of the entire business population, are affected each year. At any given moment about £26 billion is outstanding, an average of roughly £17,000 per affected business. And 14,000 businesses close annually because of late payment, which works out at 38 every day.
That £17,000 average is worth pausing on. For a large company it is a rounding error in a monthly ledger. For a firm with four employees it can be the entire buffer between operating normally and not making payroll. The same absolute sum is trivial at one end of the supply chain and existential at the other, which is precisely why the practice persists: the cost is borne almost entirely by the party with the least power to object.
Eighty-six hours, and what they displace
The London Economics work found that 22% of surveyed businesses spent staff time chasing late payments, averaging 86 hours per affected business per year. Across the economy that is 133 million hours of staff time annually.
The Howden survey puts a sharper edge on the same finding. Almost a third of businesses spend more than six hours every month chasing overdue invoices, close to a full working day lost each month to administration that produces nothing.
In a company of two hundred people, absorbing 86 hours a year is a scheduling question. In a company of five, it is roughly a fortnight of one person’s productive time, and in most small firms that person is the owner. The hours do not come out of slack, because there is none. They come out of selling, quoting, hiring or product work, which is why the real cost of late payment is always larger than the invoice.
The decisions late payment quietly makes
What makes the Howden figures more troubling than a straightforward cash flow story is the list of things firms are doing in response.
More than a third of SMEs, 34.5%, report cash flow problems caused by delayed payments. Nearly one in seven has delayed investment and growth plans. One in ten is relying on overdrafts or external credit simply to keep operating. And 6.4% have delayed hiring.
Each of those is a decision about the future being made for a reason that has nothing to do with the business’s own prospects. A firm that defers a hire because a customer has not paid is not responding to weak demand. It is rationing its own growth to cover somebody else’s working capital, and the opportunity cost never appears in any statistic.
Borrowing to bridge the gap has a directly measurable price. One in ten firms funding operations on an overdraft is paying interest to lend money, interest-free, to a customer that has already received the goods. That is a straightforward transfer from small suppliers to large buyers, and at current rates it is not a small one.
A further 4.3% report delayed wages. That is a small percentage of firms and a total failure for every employee inside them.
Firms have started screening customers
The most consequential long-term response is the quietest. The London Economics research found that 15% of surveyed businesses had avoided doing business with specific customers based on their payment behaviour.
This is a market beginning to price the risk. A buyer with a reputation for paying at 90 days is starting to find that some suppliers simply decline to quote, or quote higher to cover the financing cost. Over time that is a more effective discipline than any regulation, because it is applied by the counterparty rather than by an enforcement body.
It is also evidence of a market failure in the meantime. Screening only works where a small supplier can afford to turn away work, and the firms most damaged by late payment are precisely the ones least able to do that. The businesses with the strongest reason to refuse a bad payer are the ones that cannot.
Why the existing measures have not fixed it
None of this is happening in a policy vacuum. Payment reporting requirements have been in place since 2018, the Small Business Commissioner exists specifically to handle these complaints, and further government measures have been introduced. The Howden research was framed explicitly around the fact that the problem persists despite them.
Almost one in five firms reports that late payment has become worse over the past year, not better. The transparency regime has made large-company payment performance visible, which is a genuine achievement, but visibility only changes behaviour where reputation carries a cost. For a buyer whose suppliers cannot afford to walk away, publishing the payment record changes very little.
Robert Keene, Managing Director of Commercial at Howden, framed the problem as one of posture: “Too many businesses are stuck reacting to late payments.”
He is right that reaction is the wrong stance, though the reason firms react rather than prevent is that prevention requires leverage most of them do not have.
What would actually change it
The pattern sits alongside everything else small firms have been reporting. FSB confidence is at the weakest level ever recorded, and a business writing off invoices, deferring hires and running on an overdraft is exactly what that reading describes from the inside.
The practical levers are narrow. Invoice finance converts the receivable into cash at a cost, which is why that market has grown, and firms like Funding Circle have been profitable lending into exactly this gap. That is a symptom being monetised rather than a problem being solved, though it is a genuinely useful symptom to have monetised.
Beyond that, the tools available to a small supplier are the unglamorous ones: contractual payment terms that are actually enforced, statutory interest applied rather than waived, credit checks on new customers before the first job rather than after the third unpaid invoice, and a willingness to stop work. Every one of them requires the supplier to accept short-term friction with a paying customer, which is why so few are used.
The £11 billion figure is the part of this that can be measured. The 6.4% who did not hire, the one in seven who did not invest and the one in five who gave up on the money entirely are the part that compounds.
About The Author
More Stories
One Month of Leadership Changes Hit John Lewis, NEXT, ASOS and Puma
Independent Brewers Cannot Get Into 62% of Their Own Local Pubs
Aviva Beat on Every Measure and Its Shares Still Trail the FTSE 100