The Hidden Experts Behind Thailand’s Business Disputes 

As Thailand’s economy becomes more complex and internationally connected, forensic accountants are playing a growing role in helping courts and businesses understand the financial reality behind disputes. 

When people hear the term “forensic accountant”, they often imagine dramatic investigations into fraud or financial scandals. 

In reality, their work is often quieter — but no less important. Behind many commercial disputes in Thailand, forensic accountants play a crucial role in helping courts, lawyers and businesses understand the financial story behind the conflict. 

As business transactions become more sophisticated, business disputes are no longer driven solely by questions of law. Increasingly, they hinge on financial analysis. 

Whether the dispute involves shareholder disagreements, post-acquisition conflicts such as earn‑out or warranty conflicts, fraud investigations, construction claims or intellectual property damages, the numbers often tell the real story. 

And those numbers can be complex. 

Financial complexity is increasing 

Thailand has seen steady growth in complex commercial disputes over the past decade. Foreign investment has increased, Thai companies are expanding internationally and business transactions have become more structured and financially sophisticated. 

As a result, many disputes now involve detailed financial questions.  

Answering these questions requires more than legal argument. Courts and arbitration panels frequently need to understand financial records, business performance and valuation models. 

Forensic accountants specialise in analysing financial information and reconstructing what actually happened. Their work combines accounting expertise with investigative techniques, often involving the review of accounting ledgers, bank records, contracts, emails and electronic data. 

In many disputes, their analysis becomes central to understanding the financial impact of a dispute. 

When cultures and expectations collide 

Many commercial disputes in Thailand arise not only from financial disagreements, but also from differences in expectations between business partners — particularly in cross-border transactions. 

Foreign investors often operate under legal, financial, and corporate governance frameworks that differ significantly from local practices. Issues such as revenue recognition, profit‑sharing arrangements, cost allocations, KYC, financial records, corporate secretarial and informal agreements can create misunderstandings when partnerships begin to face commercial pressure. 

When such conflicts escalate, forensic accountants are often asked to analyse financial records to determine what actually occurred and whether financial obligations were (or were not) met.  

Supporting legal teams 

Thailand’s legal system places significant weight on documentary evidence. Forensic accountants help legal teams identify where relevant financial evidence exists and ensure it is properly preserved and analysed. By reviewing financial data in detail, they can detect discrepancies, errors or patterns that may indicate mismanagement or financial misrepresentation. 

Their involvement often begins well before a dispute reaches court. At an early stage, forensic accountants may help lawyers and businesses assess whether alleged financial losses are material and provable. 

This analysis helps determine whether pursuing a claim is commercially worthwhile and what the potential financial exposure may be. In some cases, this clarity encourages parties to resolve disputes before litigation escalates. 

Contractual disputes and financial evidence 

Contractual disputes are among the most common commercial conflicts brought before Thai courts and arbitration panels.  

When disagreements arise, the financial consequences often become central to the dispute. 

Forensic accountants will analyse/reconstruct financial records to help courts and arbitration panels understand the financial evidence behind the dispute. 

Calculating damages 

One of the most important contributions forensic accountants make is the calculation of damages. 

In Thai litigation and arbitration proceedings, claims for financial loss must be supported by clear methodology and reasonable assumptions. Courts rarely accept unsupported estimates. 

Forensic accountants apply recognised valuation techniques and economic models to quantify financial losses such as lost profits, reductions in business value or damages resulting from fraud. 

Courts expect experts to demonstrate a clear connection between the alleged wrongdoing and the financial loss claimed. 

This requires careful analysis of causation as well as consideration of other factors such as market conditions, operational performance and external economic developments. 

Employment and shareholder conflicts 

Not all disputes involve large corporations or international transactions. Many arise from internal conflicts within companies. 

Employee–employer disputes, particularly those involving senior executives, may involve allegations relating to compensation, bonuses, expense claims or misuse of company funds. 

Shareholder conflicts can also occur when partners disagree over profit allocations, financial reporting or the use of company assets. 

In these situations forensic accountants analyse financial transactions and company records to determine whether financial reporting accurately reflects the company’s activities and whether funds were used appropriately. 

Explaining complex financial evidence 

When disputes proceed to litigation or arbitration, forensic accountants may appear as expert witnesses. Their role is to provide independent and objective explanations of complex financial matters. 

A well‑prepared expert report supported by transparent assumptions and credible methodology can carry considerable weight in legal proceedings.  

An effective expert witness must translate complex analysis into clear explanations that judges and arbitrators can understand 

Looking beyond the dispute 

The work of forensic accountants does not necessarily end once a dispute is resolved. Businesses may require assistance implementing court orders, calculating restitution payments or reconstructing financial records. 

In many cases forensic accountants also help organisations strengthen internal controls and governance processes to reduce the risk of similar disputes in the future. 

Better financial transparency, stronger documentation and clearer governance processes can often prevent disagreements from escalating into costly litigation. 

A growing role in Thailand’s business environment 

As Thailand continues to attract international investment and as business transactions become more sophisticated, disputes will inevitably become more complex. 

In many cases the outcome of a dispute will depend not only on legal arguments but on whether the financial story behind the dispute can be clearly explained. 

Ensuring that the numbers truly add up is the quiet work of forensic accountants. 

About the Author 

Frank Janik is an Advisory Partner and Head of Forensic Services at BDO in Thailand. He advises Thai and international clients on forensic investigations, dispute advisory, damage quantification and expert witness matters. With extensive experience supporting lawyers and businesses in complex commercial disputes, he regularly assists in cases involving shareholder conflicts, cross‑border transactions, fraud investigations and contractual disputes.