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When the Unexpected Happens: Understanding and Quantifying Business Losses.

In an increasingly connected world, disruption can strike without warning. When it does, the financial impact can be complex and far-reaching. At Dains, our forensic accoutning experts help businesses respond with clarity and confidence, ensuring that losses are properly understood, evidenced, and recovered wherever possible.

Author

Charlotte Norton

Date

October 22nd, 2025

The Real Cost of Business Disruption

High-prolife cyber incidents at brands such as Jaguar Land Rover, Marks & Spencer, Co-op, Harrods highlight how devastating a data breach or IT failure can be. But it’s not just large corporations that are affected.

When operations are halted or invoicing and payment systems are compromised, there’s a ripple effect across the supply chain - impacting customers, employees and smaller suppliers.

And while cyber-attacks make the headlines, disruption can come from many sources - from natural disasters such as fire or flood, to supply chain failures or breaches of contract. Even a temporary shutdown can lead to serious financial loss through no fault of your own.

What is a Business Interruption Loss?

When loss occurs, one of the most important - and complex - questions is: what exactly is the loss?

Quantifying the financial impact is rarely straightforward. The goal is to assess what position the business would have been in but for the incident.

Factors to consider include:

  • Whether any relevant contracts, policies or agreements define how losses are calculated

  • Financial forecasts and performance expectations prior to the incident

  • The company’s recent trading performance and stage in its lifecycle

  • Wider market trends and external factors

  • Steps taken to mitigate the loss

  • Any costs saved during the interruption

  • The duration of the disruption and whether all losses have been captured

  • The overall impact on business value

  • Lost opportunities arising from the event

Why Expert Quantification Matters

A well-supported loss of profits claim or insurance claim relies on robust, evidence-based financial analysis. Underestimating or overstating losses can lead to disputes, delayed settlements or missed recovery opportunities.

That’s why having experienced forensic accountants by your side is vital.

How Dains Forensic Can Help

Having the right legal and accounting support is critical. At Dains, our forensic accounting specialists are regularly appointed to quantify losses for both insurance claims, commercial litigation, and business interruption disputes purposes.

If your business has experienced disruption and you need clarity on the financial impact, our dedicated advisors can help you assess, evidence and recover your position - so you can move forward with confidence.