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📜 '''Prior acts''' refers to events, errors, or occurrences that took place before the inception date of a current [[Definition:Insurance policy | insurance policy]] — and, critically, whether the policy provides coverage for [[Definition:Claim | claims]] arising out of those earlier events. The concept is central to [[Definition:Claims-made policy | claims-made]] coverage forms, which dominate professional [[Definition:Liability insurance | liability]], [[Definition:Directors and officers insurance (D&O) | directors and officers]], [[Definition:Errors and omissions insurance (E&O) | errors and omissions]], and [[Definition:Cyber insurance | cyber insurance]] worldwide. Unlike [[Definition:Occurrence-based policy | occurrence-based]] policies, which respond to events happening during the policy period regardless of when the claim is filed, claims-made policies require both that the claim be made during the policy period and that the underlying act fall on or after a specified [[Definition:Retroactive date | retroactive date]] — the boundary that determines how far back prior acts coverage extends.

🔧 In practice, the retroactive date is the fulcrum around which prior acts protection pivots. If a [[Definition:Professional liability insurance | professional liability]] policy incepts on January 1, 2025, with a retroactive date of January 1, 2020, it will cover claims reported during the 2025 policy year for wrongful acts committed any time from 2020 onward. Acts predating the retroactive date are excluded — a gap often called a "prior acts exclusion" or a "retroactive date limitation." When an insured switches carriers, the new insurer may offer full prior acts coverage (setting the retroactive date to the date of the insured's first uninterrupted claims-made policy), impose a more recent retroactive date, or exclude prior acts entirely. Continuity of the retroactive date is therefore one of the most negotiated elements in [[Definition:Renewal | renewals]] and [[Definition:Broker | broker]]-managed [[Definition:Market placement | market placements]] for professional classes.

⚠️ Failing to secure adequate prior acts protection can leave an insured dangerously exposed. Many professional errors — a flawed [[Definition:Actuarial valuation | actuarial valuation]], an omission in a [[Definition:Binding authority agreement | binding authority agreement]], a design deficiency in a building — may not surface as claims until years after the act occurred. If the insured's current policy does not reach back far enough, and the old policy has expired without an [[Definition:Extended reporting period (ERP) | extended reporting period]] (sometimes called a "tail"), the claim falls into an uninsured gap. [[Definition:Risk management | Risk managers]] and brokers mitigate this by ensuring retroactive date continuity through every policy transition and by purchasing tail coverage when a claims-made program is terminated. Regulators and professional bodies in many jurisdictions require certain professions — solicitors in England and Wales, for example — to maintain unbroken prior acts protection as a condition of practice.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Claims-made policy]]
* [[Definition:Retroactive date]]
* [[Definition:Extended reporting period (ERP)]]
* [[Definition:Occurrence-based policy]]
* [[Definition:Professional liability insurance]]
* [[Definition:Tail coverage]]
{{Div col end}}

Definition:Prior acts - Revision history

PlumBot: Bot: Creating new article from JSON