ARTICLE
1 July 2025

Due Diligence When Buying An Accounting Business

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IR Global

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IR Global is a multi-disciplinary professional services network that provides legal, accountancy and financial advice to both companies and individuals around the world. Our membership consists of the highest quality boutique and mid-sized firms who service the mid-market. Firms which are focused on partner led, personal service and have extensive cross border experience.
Due diligence is a thorough investigation service of a business by a potential buyer, to establish value, assets, liabilities, potential and the associated risks.
United Kingdom Accounting and Audit
Mark Ferris (Panalitix)’s articles from IR Global are most popular:
  • with readers working within the Accounting & Consultancy industries

What is Due Diligence?

Due diligence is a thorough investigation service of a business by a potential buyer, to establish value, assets, liabilities, potential and the associated risks.

What are important focus areas in DD of an Accounting Business?

The Clients:

  • Perhaps the most important asset being purchased... so requires detailed assessment
  • Focus on Client size, age, key Client relationships, industry concentrations, retention rates, satisfaction levels, and any pending or potential client disputes

The Team:

  • Also important... because the team probably interfaces with Clients and produces the work
  • Review qualifications, experience, recent performance, status of employee contracts, compensation structures, retention strategies, and outstanding HR issues or liabilities.
  • Identify competitive threats and future hiring needs.

Financial Performance

  • Past financial performance helps predict future performance
  • Review income statements, revenue streams, client contracts, billing practices, accounts receivable aging reports, balance sheets, and cash flow statements
  • Ensure reported revenue ties up with tax returns and bank statements
  • Assess profitability, liquidity, and overall financial health

Business Processes

  • Assess the company's services, complexity of the work, Client engagement processes, workflow systems, and quality control processes for improvement opportunities, synergies and risks
  • This is achieved by examining a sample of Client files and working papers
  • Assess fee levels relative to the work. Low fee levels may be an opportunity... WITHOUT losing Clients
  • Review Accounts Receivable even if not included in the purchase, to assess payment behaviours

Technology and Systems

  • Assess IT infrastructure, software, data security, and technology capabilities for compatibility, scalability, and efficiency, especially as relates to potential integrations or upgrades

Compliance and Legal

  • Ensure compliance with accounting standards, regulatory requirements, and licensing obligations
  • Identify legal issues, litigation, or investigations that could impact reputation or operations

What Makes the DD Process More Efficient?

Focus on Material Issues

  • Start with material issues (examples above). Do high- level analysis BEFORE drilling down. That prevents a failure to grasp the 'big picture'
  • Areas of potential risk (or 'icebergs') should be assessed in great detail and prioritised

Preliminary Assessments

  • Initial assessments or interviews with leaders and other stakeholders help to form preliminary insights and identify red flags which require special focus

Checklists

  • Use comprehensive tools, models and checklists developed by experts

Responsibilities and Deadlines

  • Use astute project management practices including delegating due diligence tasks to internal and external participants along with clear deadlines

Utilise Technology

  • Accounting software, data analytics tools, and document management systems streamline the gathering, analysis, and storage of due diligence

Use Advisors

  • Experienced legal, financial, tax and accounting advisors assist with interpreting findings.

Confidentiality

  • Deals are at significant risk if sensitive information is leaked to competitors, employees etc.

Communication

  • Open communication with the seller's management team, advisors, and owners can quickly address questions
  • This also helps develop trust, a critical aspect for what may follow if a transaction goes ahead.

The content of this article is intended to provide a general guide to the subject matter. Specialist advice should be sought about your specific circumstances.

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