What is Financial Due Diligence?
Short answer: Financial due diligence is a transaction-focused analysis of a target's financial performance, cash generation and balance-sheet exposures. It informs valuation and deal protections but is not a statutory audit.
The work usually covers revenue and margin trends, quality of earnings, cash conversion, working capital, net debt, debt-like items, capex, forecasts and accounting policies. It reconciles management reporting to ledgers and statutory statements, then explains the economic drivers relevant to the deal. A buyer may use findings to revise maintainable EBITDA, the working-capital peg, financing and warranties. Sellers may commission VDD to give bidders a consistent base. Financial diligence differs from tax diligence, which evaluates tax positions, and from an audit, which expresses an opinion on financial statements under a defined assurance framework.
How it works
The team agrees scope and materiality from the transaction thesis, obtains source data and creates reconciliations before analysing trends. It bridges reported to adjusted results, separates historic facts from forecast actions, tests revenue cut-off and cohorts, examines monthly cash flow, and maps potential debt-like items. Findings include amount, evidence, recurrence, forecast effect and contractual implication. Common mistakes include accepting an EBITDA add-back because management labels it exceptional, using annual data that hides seasonality, failing to reconcile customer data to revenue and allowing the same issue to affect maintainable earnings and purchase-price adjustments without understanding whether that double counts value.
Maintainable EBITDA illustration = reported EBITDA + evidence-supported non-recurring costs - non-recurring income - missing recurring costs +/- sustainable run-rate adjustments
Example
Reported EBITDA is 12. Diligence identifies 1 of genuinely one-time closure costs, 0.7 of non-recurring grant income and a 0.5 annual finance leadership role that is required after the founder exits. Maintainable EBITDA is therefore 12 + 1 - 0.7 - 0.5 = 11.8 before any forecast improvements. Monthly analysis also shows that working capital peaks 4 above year-end and that 1.2 of receivables are overdue. The buyer uses 11.8 in its base valuation, builds a seasonal peg from monthly data and investigates collectability separately rather than assuming the year-end balance is normal.
Why it matters
Buyers and boards use the work to understand what they are valuing and which cash or balance-sheet risks transfer. Private-investment teams connect it to debt capacity, returns and investment-committee conditions. Sellers use it to anticipate bidder adjustments and repair data gaps before launch. Lenders may perform their own analysis or receive reliance on a report. The value lies in traceable evidence and quantified decision effects, not in the number of pages produced.
Scope, access and time constrain the procedures, and no report eliminates fraud or undisclosed liability risk. Accounting standards and the sale agreement can define measures differently. Tax, pension, legal, actuarial and environmental issues require specialists. Data-protection and confidentiality rules affect transaction datasets. Any reliance, duty of care and liability limitation comes from engagement and reliance documents. Statutory accounts and post-acquisition purchase accounting remain separate exercises.