Every year, companies inadvertently overpay millions in customs duty. The rules are complex, the trade environment is fast-paced, and errors happen. Yet when the opportunity arises to reclaim that money, businesses often hesitate. Not because the reclaim is questionable or the process unclear – but because of something far less rational: fear.

This fear isn’t about financial risk. It’s rooted in psychology. Behavioural economics tells us that the pain of a perceived loss can feel twice as powerful as the satisfaction of a gain. And when applied to corporate decision-making, this cognitive bias – known as loss aversion – can stop businesses from pursuing legitimate reclaims, even when doing so would improve margins, strengthen compliance, and return significant value to the bottom line.


You’ve overpaid millions in import duty. The evidence is there. The reclaim process is clear. And yet… nothing happens.

It’s a scenario we encounter time and time again: businesses sitting on a sizable pot of reclaimable customs duty, but hesitant to act. Not because the reclaim isn’t valid, or the process isn’t understood. But because of something more elusive: fear. More specifically, loss aversion. 

The psychological lens: losses loom larger than gains 

Behavioural economics offers a compelling explanation. In 1979, Daniel Kahneman and Amos Tversky introduced Prospect Theory, a foundational concept in behavioural finance. One of their most enduring findings was this:

“Losses loom larger than gains.”

In other words, the psychological impact of losing £100 is roughly twice as powerful as the pleasure of gaining £100. This isn’t just theory, it’s observable, repeatable human behaviour. And while most examples apply to individuals, the same cognitive bias plays out within businesses.

When companies consider reclaiming duty, they may recognise the potential upside. But they’re also painfully aware of what might go wrong: 

  • “We might uncover past mistakes.” 
  • “This could raise red flags with HMRC.” 
  • “We don’t want to blame our broker or question our past processes.” 

These imagined risks feel like potential losses – reputational, operational, or personal. Even if no actual penalty is involved, the fear of exposing weakness often outweighs the logical financial incentive to recover funds. 

Corporate decision-making and the mental accounting trap 

In 2001, Nicholas Barberis and Ming Huang explored how loss aversion interacts with mental accounting and the tendency to treat different sources or uses of money as psychologically separate. Their work (Mental Accounting, Loss Aversion, and Individual Stock Returns) shows that even when an opportunity is rational, if it ‘feels’ like it might involve admitting a past loss or facing scrutiny, people and organisations  often avoid it. 

We see this all the time: 

  • Reclaims are perceived as “going backwards”; 
  • Internal teams are fearful of exposing errors; 
  • Decision-makers overestimate the reputational risk. 

The result is a kind of organisational paralysis. Everyone agrees the reclaim is probably valid. But no one wants to own it. 

Barberis and Huang argue that loss-averse behaviour leads to systematic underperformance in financial decision-making. For CFOs and finance leads, that manifests in leaving money on the table, despite all available evidence supporting action. 

Reclaiming is not an admission of guilt 

Let’s be clear: pursuing a reclaim is not a confession. It doesn’t mean someone did something wrong. It means you’re correcting historic overpayments and optimising future declarations. In most cases, HMRC welcomes this kind of proactive engagement. 

And yet, the reclaim conversation is often framed emotionally rather than rationally. 

  • Teams fear ‘rocking the boat’; 
  • Suppliers or brokers resist scrutiny; 
  • Leadership wants to focus on the future, not revisit the past. 

These are natural responses. But they’re also costly ones. 

A rational approach to overcoming loss aversion in your team 

So how do you move past the fear? 

  1. Acknowledge the bias. Loss aversion is hardwired. Recognising its influence is the first step to managing it. 
  2. Reframe the reclaim. This isn’t about auditing the past; it’s about recovering working capital, improving compliance, and protecting the business. 
  3. Outsource the pain. External specialists like Barbourne Brook can handle the heavy lifting discreetly, objectively, and without triggering internal defensiveness. 
  4. Create psychological distance. Treat the reclaim as a new project, not a retrospective adjustment. 
  5. Focus on net benefit. A successful reclaim improves the balance sheet, builds confidence with the board, and reinforces a culture of continuous improvement. 

Also consider the internal dynamics: even if senior leadership is open to a reclaim conversation, operational teams may still be influenced by loss aversion. We often hear an initial “not interested” from supply chain or compliance teams, only to speak with a CFO months later who is very interested. It’s rarely about disinterest but more often, it’s a form of gatekeeping, perhaps to avoid perceived scrutiny in their area of expertise. Creating a safe, non-blaming space for these conversations can help opportunities surface sooner.

Reclaiming the Future

Loss aversion explains why some companies hesitate to claw back their legally owed money. However, understanding this bias gives us the power to overcome it.  Inaction feels safe, but it’s a hidden cost. In customs, silence doesn’t protect you from scrutiny; it just prevents you from putting money back into your business.  Remember, reclaims look historically, but fixing the issue will give ongoing savings and improve margins. 

Sometimes the smartest move is to stop avoiding the past and start reclaiming the future.