By Lee Allen
One of biggest misconceptions I find (particularly in sales teams) is the idea that waiting on an overdue invoice creates customer goodwill, which magically translates into easier collection down the line. Experience, perhaps even common sense, tells us the opposite is usually true. Patience and credit control aren’t necessarily the same thing. Good things don’t always come to those who wait.
The key debate in Credit Control isn’t about the value of escalation, but the timing of it. When is the right time to escalate and when is the right time to use a third party?
On that point, the old adage popularised by Benjamin Franklin that ‘time is money’ is a particularly apt one. Once an invoice has passed terms it needs chasing and once internal chasing stops producing movement, you need external escalation.
Every additional day gives the debtor more opportunity to deprioritise the debt—and age not only introduces risk but also reduces the value of the receivable.
Therefore, in B2B finance, the question about when and how to escalate an unpaid invoice isn’t just an operational decision; it is a financial one.
The longer an overdue account remains unresolved, the greater the risk that it becomes a bad debt.
The clock starts when the invoice becomes overdue. An unpaid invoice is not necessarily a bad debt – the customer may have missed the invoice, encountered an administrative problem, failed to obtain the correct purchase order, or simply have a payment run scheduled for later in the month.
That is why good AR teams have a structured internal collection process.
But there is an important distinction between an invoice that is late and an invoice that is stuck.
If an invoice has passed its agreed payment terms, has been chased repeatedly, and the customer is unresponsive, repeatedly breaking promises to pay, or providing no credible route to settlement, continuing to manage it indefinitely inside the AR department can become counterproductive.
The UK Government’s research into B2B late payments found that 36% of businesses said customers took longer to pay than their contractual terms. It also found that cash-flow problems are a major driver of late payment and that, in some cases, businesses deliberately pay late, effectively using supplier credit as a source of finance. (GOV.UK)
That matters because an overdue invoice can tell you something about the debtor.
It may simply be an administrative delay, but it could also be an early warning that the customer’s cash position is deteriorating.
The longer you wait to find out which one it is, the greater your exposure becomes. Old debt is harder debt.
The relationship between the age of a receivable and its likelihood of collection is well established in credit management. Ageing schedules apply progressively lower collectability forecasts as the receivable ages. Eventually it will fall into what I’ve colloquially heard called the f**k it bucket. More formally known as write-offs.
This received wisdom is also borne out by academic research.
Research published in European Financial Management found evidence that older accounts can indicate poorer debtor quality, with more time spent in internal collection leaving less recovery opportunity for a third-party collector. (Wiley Online Library)
This creates an important principle for AR leaders:
A debt does not stand still while you decide what to do with it.
At 30 days overdue, the customer may still regard the invoice as a routine administrative issue. At 90 days, it has become a persistent problem.
At six months, there may be a completely different financial situation behind it.
At a year, the original account manager may have left, the finance contact may have changed, the company’s financial position may have deteriorated, the documentation may be harder to locate, and the debtor may have accumulated other creditors.
While the invoice aged, the risk grew and the collection got harder.
The ‘90-day’ question
Much as it would benefit me to be true, there is no universal rule that every B2B debt should automatically be placed with a collection agency at exactly 90 days.
The right trigger depends on the customer, the value of the debt, the reason for non-payment, the quality of the documentation, previous payment behaviour and the debtor’s financial position.
That said, 60–90 days past due is an important decision point for many commercial AR departments. By this stage, an effective internal process should have established:
- Is the invoice valid?
- Was it correctly submitted?
- Is there a dispute (and is it genuine)?
- Does the customer acknowledge the debt?
- Has a payment date been agreed?
- Has that promise been kept?
- Is the customer communicating?
- Is there evidence of financial distress?
- Is continued internal chasing actually changing the outcome?
If the answers are increasingly negative, the question should change from ‘How much longer should we chase this?’ to ‘Why are we still trying to collect this internally?’
The Early Bird Catches the Worm
Sticking with the tried-and-true idioms, some commercial collection industry sources cite substantially higher recovery prospects the earlier accounts are referred to a third party. For example, Commercial Collectors cites a Dun & Bradstreet benchmark of 69% collection probability when an account is placed at 90 days past due. (Commercial Collectors)
The precise percentage should not be treated as a universal guarantee—recovery rates vary significantly by debtor, geography, documentation, dispute status and industry.
But the underlying principle is much more important than any single percentage: Earlier intervention generally gives a collector more options.
Why early intervention works
A professional Accounts Receivable Management agency changes the dynamic.
- The AR team has already (repeatedly) asked.
- The account manager has (hopefully) already asked.
- The customer has already promised.
- The internal escalation has already happened.
A professional third party introduces a different voice and a new level of seriousness.
It can also allow the AR department to separate two activities that are often difficult to manage simultaneously: protecting the customer relationship and collecting the money.
An internal account manager may hesitate to become more forceful because they are worried about losing the customer.
A specialist commercial collector has a different mandate: resolve the outstanding balance professionally.
That does not mean threatening legal action or destroying the relationship. Good B2B collection is often about establishing why the invoice remains unpaid, identifying genuine disputes, negotiating realistic payment arrangements and creating consequences for continued non-payment.
The hidden cost of waiting
The cost of an overdue invoice is not simply the invoice value. There is also the cost of the AR team’s time.
Let’s consider a £50,000 invoice.
If three members of the organisation spend time chasing it over six months—AR, sales and management—the company has effectively invested additional resources in trying to recover money it has already earned.
And the opportunity cost can be significant.
Every hour an experienced AR professional spends repeatedly chasing an unresponsive debtor is an hour they cannot spend on:
- preventing future overdue debt
- resolving genuine disputes
- improving DSO
- managing high-value accounts
- improving cash application
- managing credit risk
- building customer account relationships
- reducing future bad debt
The British Business Bank specifically recommends regularly reviewing outstanding invoices, highlighting those that are most overdue and highest in value, and creating a plan to address them. It also recommends following up late payments promptly. (British Business Bank)
In other words, old debt consumes resources twice: once when it is created and again when it refuses to be collected. Or to use a cliché; you’re throwing good money after bad.
The financial case is even stronger when customers are under pressure
The current B2B environment makes early intervention particularly important. Atradius’ 2025 UK Payment Practices Barometer found that 51% of B2B invoices were overdue, while bad debts accounted for 7% of B2B invoices in its survey. (Atradius)
That is a significant warning for AR departments. An overdue invoice may not be an isolated administrative problem. It may be one of several creditors experiencing the same behaviour.
And if a customer is experiencing genuine liquidity problems, the creditor that acts first may have a significant advantage.
The UK Government’s research similarly found that late payment can be connected to financial distress and that cash-flow problems can cascade through supply chains. (GOV.UK)
Waiting for a customer to ‘get back on their feet’ sounds commercially reasonable and humanely decent, but from a credit-control perspective, it can be a dangerous strategy.
You are effectively extending additional unsecured credit to a customer that is already demonstrating that it cannot—or will not—pay within agreed terms.
Early collection doesn’t have to mean aggressive collection
This is an important distinction.
The argument for acting sooner is not an argument for sending every 15-day overdue invoice to a debt collector. Nor does it advocate for a tonal shift that could potentially alienate a customer and compromise future business.
Good AR management usually consists of 5 stages.
1. Prevent
- Get the invoice right.
- Correct PO.
- Correct legal entity.
- Correct billing address.
- Correct supporting documentation.
- Clear payment terms.
2. Remind
- Contact the customer before and immediately after the due date.
- Identify administrative issues quickly.
3. Escalate
- If the invoice remains unpaid, increase the seniority and formality of the communication.
4. Diagnose
- Determine whether the problem is: administrative, disputed, behavioural or financial.
5. Act
- If internal intervention has failed and there is no credible route to payment, refer the account to a professional B2B collection specialist.
The objective isn’t to punish the customer. It is to stop the debt ageing.
The real enemy is a ‘one more month’ mentality
Perhaps the most expensive sentence in Accounts Receivable is ‘Let’s give them another month.’
Sometimes that is exactly the right decision, but it should be an informed decision.
If a customer has acknowledged the invoice, provided a credible payment date and has a strong payment history, giving them additional time may make commercial sense.
If they have stopped responding, broken several promises, disputed an invoice only after months of silence, or are showing signs of financial distress, another month may simply move the account from 90 days to 120 days.
Then 180.
Then 365.
And suddenly the AR department is trying to recover an invoice that should have been escalated months earlier.
The UK Government explicitly recognises that late payments can damage cash flow, increase costs and, in severe cases, contribute to business failure. (GOV.UK)
Time is a credit decision
For B2B AR leaders, the key question isn’t just ‘How old is this debt?’ but ‘What is the probability this debt will be paid if we do nothing different?’
If the answer is falling, the case for external intervention becomes stronger.
A professional collection agency cannot guarantee recovery. No legitimate agency can.
But it can intervene while the debt is still relatively fresh, while the debtor is identifiable and contactable, while documentation is readily available and before the receivable becomes one of many competing claims on a financially stressed business.
That is the real value of acting sooner.
The bottom line
Accounts Receivable teams are often measured on DSO, overdue debt, cash collection and bad-debt performance. Those metrics are backward-looking.
The more valuable question is forward-looking: ‘What can we do today to increase the probability of collecting this money?’
The evidence points in one direction: older receivables are generally harder to collect, late payment is widespread, and financial pressure can make an overdue invoice a symptom of a deeper problem. (Wiley Online Library)
So, when internal collection activity has stopped producing results, waiting is not a neutral decision; it’s a decision to accept increasing collection risk.
The best time to involve a professional B2B collections partner isn’t necessarily when an invoice becomes a year old. It is when the AR team has enough evidence to conclude that what they are currently doing isn’t working.
Time isn’t just money. Time determines how much of your money you ultimately get back.