Buy-side financial due diligence in the UK lower-middle market comes down to three value bridges: reported profit to maintainable EBITDA, reported working capital to a normalised target, and enterprise value to equity value through cash, debt and debt-like items. Most disputes at completion trace back to one of these three.
This briefing sets out the critical income-statement and balance-sheet areas at the pre-FDD stage — where a red-flag review can surface the issues that a full FDD engagement otherwise catches weeks and six figures later.
Key messages
- Revenue quality beats revenue growth. Separate contractually recurring revenue from repeat, project-based, pass-through, related-party and one-off revenue before you trust the top line.
- Vendor EBITDA adjustments need evidence. An unsupported add-back is amplified by the transaction multiple — it is one of the highest-leverage numbers in the deal.
- Normal working capital is bespoke. The target level rarely falls out of a year-end balance sheet or a mechanical trailing average; it has to be defined deal by deal.
- Net debt is wider than bank borrowings. Tax arrears, shareholder loans, deferred consideration, unpaid bonuses, lease liabilities and overdue suppliers can all be debt-like.
- Smaller UK targets carry weaker accounting. Many businesses in range qualify for audit exemption, so the quality of the accounting base is itself a diligence finding, not just a scope note.
- FRS 102 changes add comparability risk. Revised revenue-recognition and lease rules apply for periods beginning on or after 1 January 2026 and can shift revenue timing, EBITDA presentation and net debt.
- Financial-statement breaches are disproportionately costly. Marsh reported such breaches at roughly 20% of notified R&W representations but around 45% of claim payments; Aon noted a 47% rise in EMEA claim notifications in 2025.
What the full report covers
The full briefing works through the critical income-statement and balance-sheet areas in detail — revenue quality, EBITDA adjustments, working capital, net debt and debt-like items, fixed assets and capex, capitalised development, tax balances, related-party and shareholder arrangements, and provisions — followed by a priority matrix, an illustrative value-sensitivity analysis, a recommended minimum scope and information request, and the expected outputs of an FDD report.
Download the full report below for the complete analysis, recommended procedures and sources.
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