Forensic Accounting: Detect Fraud and Quantify Damages for Court
Financial and accounting investigations to detect fraud, resolve corporate disputes, and provide expert witness support in legal proceedings.
Does this apply to your business?
I suspect fraud within my company — how do I investigate without alerting the responsible parties?
We have acquired a company and discovered the financials were misrepresented — how do we build a warranty claim?
Our former partner has not provided accurate accounts — how do we quantify what we are owed?
We need an independent expert to quantify damages for litigation — who can produce a court-ready report?
0 of 4 questions answered
Our forensic investigation process: evidence preservation, analysis, and expert reporting
Initial assessment & scope
We define the scope of the investigation, secure the preservation of digital and documentary evidence, and establish confidentiality protocols.
Collection & forensic analysis
We collect and analyse financial, accounting, and operational data using advanced forensic techniques to identify irregularities, inconsistencies, and suspicious patterns.
Quantification of damages
We calculate the economic impact of identified irregularities using methodologies recognised by courts and regulatory bodies.
Expert report & support
We prepare comprehensive expert reports and appear as expert witnesses in arbitrations, court proceedings, or out-of-court negotiations.
The challenge
Internal fraud, shareholder disputes, or accounting irregularities can go undetected for years, causing multi-million losses. When they surface, the company needs solid, documented evidence to act effectively -- in court, in negotiations, or before regulators. A poorly executed investigation can invalidate evidence or alert those responsible.
Our solution
Our forensic accounting team combines accounting, legal, and technology expertise to conduct rigorous, confidential, and results-oriented investigations. We provide forensic analysis of financial information, quantification of damages, and expert witness support for all types of proceedings.
Forensic accounting is a specialised discipline that applies accounting, financial analysis, and investigative techniques to detect fraud, quantify economic damages, and produce evidence-quality findings for use in legal proceedings, arbitrations, or regulatory investigations. In Spain, forensic accounting experts acting in court proceedings must meet the independence requirements of Article 335 of the Civil Procedure Act (LEC), and their reports are subject to procedural scrutiny for methodology and chain-of-custody compliance. Common engagements include internal fraud investigations, post-M&A warranty breach claims where the acquired company's financials were misrepresented, shareholder disputes requiring independent damage quantification, and insurance loss assessments under professional indemnity or fidelity coverage, with digital evidence handled under e-discovery protocols to preserve admissibility.
Our forensic accounting team has acted in court proceedings, international arbitrations, and complex out-of-court negotiations. We combine the rigour of financial analysis with the expert precision demanded by courts and regulators.
Why Financial Irregularities Discovered Without Expert Handling Become Compound Crises
Financial irregularities discovered without expert handling become compound crises. The manner of the initial response determines whether evidence is preserved or contaminated, whether the responsible parties are alerted before the full scope is understood, and whether the investigation methodology will withstand procedural challenge in court. Post-M&A warranty claims require financial quantification that is simultaneously technically rigorous and legally admissible — a combination that few conventional accountants are equipped to provide. Shareholder disputes need an independent expert who can produce a report acceptable to both parties and defensible in arbitration. And the investigation that alerts the subject before its scope is understood recovers a fraction of what a properly sequenced one does. The first call should be to a forensic specialist, not to internal management.
Our Forensic Investigation Process: Evidence Preservation, Analysis, and Expert Reporting
We conduct fraud investigations, financial dispute analysis, and expert reporting with the procedural discipline that legal proceedings require. Investigations begin with a confidential scoping phase: defining parameters, establishing evidence preservation protocols, and designing a communication plan that minimises the risk of early disclosure. We deploy forensic data analysis techniques — transaction testing, statistical anomaly detection, and network analysis of financial relationships — with a strict chain of custody for all digital evidence. Our expert reports are produced to the standards required for Spanish court proceedings and international ICC or LCIA arbitrations, and our professionals are qualified and experienced as expert witnesses in both forums. Where the financial investigation intersects with legal proceedings, our team coordinates directly with litigation counsel through our litigation and arbitration team to ensure financial and legal strategies are aligned from the outset.
Real Results in Forensic Accounting: €220M+ Damages Quantified, 100% Court Acceptance
- Complete, documented picture of irregularity scope, mechanics, and financial impact: the foundation for any criminal complaint, warranty claim, or insurance recovery.
- EUR 220M+ in damages quantified across fraud investigations, post-M&A warranty claims, and shareholder disputes.
- 100% of expert reports accepted by Spanish courts and arbitral tribunals without procedural challenge.
- Post-M&A warranty claims supported: forensic review of acquired company financials with precise quantification of breach, creating a strong factual basis for settlement or arbitration.
- Anti-fraud programme design for companies after an investigation: controls, whistleblowing channels, and governance improvements that reduce future exposure.
Forensic accounting engagements in Spain operate within the framework of the Civil Procedure Act (LEC) for expert reports, the Criminal Code for fraud and accounting offences, and international arbitration rules (ICC, LCIA, UNCITRAL) for cross-border disputes. Spanish courts require expert witnesses to meet independence standards under Article 335 LEC. Post-M&A warranty claims are governed by the purchase agreement representations and warranties provisions, frequently resolved in ICC arbitration. Digital evidence must be preserved and handled in accordance with chain-of-custody standards for admissibility. Our due diligence team and forensic accounting team work together in post-M&A warranty investigations, applying the same rigorous analytical approach that drives the due diligence process to the investigation of misrepresentations identified after closing.
The scope of forensic accounting
Forensic accounting applies investigative analytical techniques to financial records for the purpose of litigation support, fraud investigation, dispute resolution, or regulatory proceedings. The term “forensic” reflects the court-admissible standard to which forensic accounting work must be conducted — methodology, documentation, and expert testimony standards that go beyond those applied in ordinary audit or advisory engagements.
In Spain, forensic accounting engagements arise in a variety of contexts: shareholder disputes, M&A purchase price disagreements, employment fraud investigations, insurance claims, AEAT criminal tax proceedings, anti-money laundering (AML) investigations, and court-appointed expert witness appointments. Our team has experience across all of these contexts and maintains the professional independence and documented methodology standards required for expert evidence in Spanish judicial proceedings.
Fraud investigation and asset tracing
Fraud investigations typically begin with an anomaly — a reconciling item that cannot be explained, an employee who lives beyond their apparent means, a supplier payment that cannot be matched to services received. Our investigation methodology is structured to move from anomaly to evidence in a manner that preserves the chain of custody and protects against challenges to the admissibility of findings.
Common fraud types in Spanish businesses include:
- Payroll fraud: ghost employees, inflated working hours, unauthorised payroll amendments. Particularly prevalent in labour-intensive businesses with weak HR controls.
- Procurement fraud: kickbacks, fictitious suppliers, inflated invoices. The SEPBLAC (Spain’s financial intelligence unit) has identified procurement fraud as a significant AML risk vector in construction and services sectors.
- Management fraud (earnings manipulation): revenue inflation, expense suppression, or inappropriate balance sheet treatment to meet profit targets or covenant tests.
- Cash theft: particularly relevant for hospitality, retail, and professional services businesses with significant cash revenues.
Asset tracing — identifying hidden assets in divorce proceedings, insolvency disputes, or fraud investigations — requires specialist skills in corporate registry searches, property register analysis, banking record requests, and cross-border investigation through international legal assistance mechanisms.
Litigation support and expert witness services
In disputes arising from M&A transactions — warranty claims, earn-out disputes, completion account disagreements — a forensic accounting expert provides independent quantification of losses and professional testimony that withstands cross-examination. Our expert witnesses have experience appearing before Spanish commercial courts (juzgados de lo mercantil), arbitration tribunals (including ICC and CIMA), and the TEAC (administrative tax court).
For valuations disputes — where parties to a transaction disagree about the fair value of a business or asset at a specific date — we provide independent valuation expert opinions that meet the evidentiary standards of Spanish judicial and arbitration proceedings.
AML and compliance investigations
Companies subject to Spain’s Anti-Money Laundering Law (Ley 10/2010) — including financial institutions, real estate agents, lawyers, notaries, and certain other businesses — have specific compliance obligations managed by SEPBLAC. When a potential AML breach is identified, forensic accounting analysis of transaction records is frequently required to assess the nature and scale of the issue, support internal reporting, and cooperate with regulatory enquiries.
Our regulatory outsourcing team provides ongoing AML compliance support, while our forensic team handles investigation and regulatory response when incidents arise.
Contact our forensic accounting team for a confidential initial discussion about your investigation or dispute resolution requirements.
Forensic accounting in corporate insolvency
In restructuring and insolvency contexts, forensic accounting is often required to investigate transactions in the period prior to insolvency — identifying preferential payments, transactions at undervalue, or director conduct that may give rise to rescission claims or liability findings. Our team supports insolvency administrators, creditor committees, and directors facing such investigations, providing the financial analysis and expert evidence needed for administrative and judicial proceedings.
Real results in forensic accounting: €220M+ damages quantified, 100% court acceptance
When we discovered accounting irregularities in a recently acquired company, BMC's forensic team handled the investigation with absolute discretion and professionalism. Their expert report was the foundation of our successful warranty claim.
Experienced team with local insight and international reach
What our forensic accounting and financial investigation service includes
Internal fraud investigation
Confidential, professionally managed investigation of suspected fraud, misappropriation, or accounting manipulation, with full evidence chain preservation.
Post-M&A warranty claims
Forensic review of acquired company financials to identify misrepresentations and quantify warranty breach claims under the purchase agreement.
Damage quantification
Calculation of economic losses using court-accepted methodologies, including lost profits, diminution of value, and cost of rectification approaches.
Expert witness reports
Preparation of expert reports complying with Spanish and international procedural standards, and appearance as expert witness in court or arbitration.
Anti-fraud programme design
Assessment of fraud risk and design of preventive controls, whistleblower channels, and governance improvements to reduce future exposure.
Results that speak for themselves
Reference guides
Rigorous due diligence for confident investment decisions
Financial, tax, and legal due diligence for investments and acquisitions. Identify hidden risks before you invest.
View guideCSRD in Spain: Complete Guide to Preparing Your First Sustainability Report Under ESRS Standards
CSRD is already mandatory for large companies for FY2025. Everything you need to know about double materiality, ESRS standards, and sustainability report verification.
View guidePlan your family business succession with confidence
Plan your family business succession with legal and tax guarantees. Family protocol, tax optimization, and business continuity.
View guideAnalysis and perspectives
Frequently asked questions about forensic accounting, fraud investigations, and expert witnesses
Start with a free diagnostic
Our team of specialists, with deep knowledge of the Spanish and European market, will guide you from day one.
Forensic Accounting & Investigations
Strategy
First step
Start with a free diagnostic
Our team of specialists, with deep knowledge of the Spanish and European market, will guide you from day one.
Request your diagnostic
You may also be interested in
Due Diligence
Exhaustive risk and opportunity analysis for informed, confident investment decisions.
Saber másMergers & Acquisitions
End-to-end M&A advisory to maximise value in every transaction your company undertakes.
Saber másValuations
Rigorous business valuations using recognised methodologies for transactions, disputes, and regulatory compliance.
Saber másAnti-Money Laundering (AML)
AML/CFT compliance programme for entities subject to Spain's Law 10/2010: policies, procedures, training, and SEPBLAC liaison.
Saber másCommercial Law
Expert commercial law advisory to safeguard your business operations and protect your corporate interests.
Saber másLitigation & Arbitration
Representation and strategy in civil and commercial litigation and national and international arbitration for businesses.
Saber másKey terms
Cash Flow Analysis
Cash flow analysis is the examination of the actual cash generated and consumed by a business over a…
Read definitionDue Diligence
Due diligence is the structured investigation and analysis of a target company or asset before a…
Read definitionEBITDA
EBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortisation) is the most widely used…
Read definitionFamily Business
A family business is one in which one or more families hold a controlling ownership stake and…
Read definitionGoodwill in Spanish M&A
Goodwill (fondo de comercio) is the premium paid in an acquisition above the fair value of the net…
Read definitionProfit and Loss Account in Spain
The profit and loss account (cuenta de pérdidas y ganancias) is the income statement of a Spanish…
Read definitionSociedad Limitada (SL) — Spanish Limited Liability Company
A Sociedad Limitada (SL) is Spain's most common corporate structure, equivalent to a UK Limited…
Read definitionStatutory Audit (Auditoría de Cuentas)
A statutory audit (auditoría de cuentas) in Spain is a mandatory independent examination of a…
Read definition