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🔎 '''Technical due diligence''' is the rigorous, expert-led examination of an insurance company's core technical functions — particularly its [[Definition:Underwriting | underwriting]], [[Definition:Actuarial science | actuarial]], [[Definition:Claims management | claims]], [[Definition:Reserving | reserving]], and [[Definition:Reinsurance | reinsurance]] practices — undertaken before a transaction such as an acquisition, merger, investment, or [[Definition:Runoff | runoff]] portfolio transfer. While financial and legal due diligence are standard in any corporate deal, technical due diligence addresses the unique risk that an insurer's balance sheet may harbor latent liabilities embedded in long-tail reserves, mispriced books of business, or inadequate [[Definition:Loss reserves | loss reserve]] estimates that only surface years after the deal closes.

⚙️ A typical technical due diligence exercise involves independent [[Definition:Actuary | actuaries]] re-projecting the target's [[Definition:Unpaid loss reserves | unpaid loss reserves]] using their own assumptions, stress-testing the [[Definition:Loss development | loss development]] patterns, and evaluating the adequacy of [[Definition:Incurred but not reported (IBNR) | IBNR]] provisions. Underwriting due diligence scrutinizes the target's pricing models, [[Definition:Risk selection | risk selection]] criteria, [[Definition:Policy wording | policy wording]] exposure, and historical [[Definition:Loss ratio | loss ratios]] by line of business and underwriting year. The reinsurance review examines the structure and collectibility of the target's [[Definition:Reinsurance program | reinsurance program]], including the creditworthiness of [[Definition:Reinsurer | reinsurers]] on the panel and any disputes or commutation history. In [[Definition:Insurtech | insurtech]] deals, the scope often extends to evaluating proprietary algorithms, data infrastructure, [[Definition:Application programming interface (API) | API]] architectures, and the scalability of technology platforms — blending traditional insurance technical review with technology assessment.

💡 Overlooking or shortcutting this process has led to some of the insurance industry's most painful deal outcomes. Acquirers who relied on surface-level financial metrics without probing reserve adequacy have found themselves absorbing billions in unanticipated [[Definition:Asbestos and environmental liability | asbestos]], environmental, or long-tail casualty liabilities. The discipline is equally critical in [[Definition:Private equity | private equity]] transactions targeting insurance platforms, where investors must understand the earnings quality behind combined ratios and the sustainability of underwriting margins. In [[Definition:Lloyd's of London | Lloyd's]] market transactions involving the sale of [[Definition:Lloyd's syndicate | syndicate]] participations or managing agency stakes, technical due diligence includes review of the syndicate's historical performance, stamp capacity utilization, and compliance with Lloyd's oversight requirements. Done well, technical due diligence protects buyers from hidden exposures and provides the analytical foundation for accurate deal pricing.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Actuarial valuation]]
* [[Definition:Loss reserves]]
* [[Definition:Incurred but not reported (IBNR)]]
* [[Definition:Mergers and acquisitions (M&A)]]
* [[Definition:Reinsurance program]]
* [[Definition:Runoff]]
{{Div col end}}

Definition:Technical due diligence - Revision history

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