Category: Claims handling · Reviewed by Mark Fox, Broker · Renewals · Last reviewed 2026-06-11
A loss of documents claim is a claim arising from the loss, destruction or misplacement of physical or electronic documents in a professional’s custody — typically covered under a specific loss-of-documents extension to PI cover.
Professional firms hold significant volumes of client documents — contract files, transaction documents, wills, deeds, accounts, client records. Loss of these documents through fire, flood, theft, system failure, cyber event or simple misplacement can give rise to claims by the affected clients.
Most PI policies include a specific loss-of-documents extension covering the cost of reconstructing lost documents up to a defined sublimit. The cover responds to direct reconstruction costs and to certain consequential losses.
The framework includes:
The loss-of-documents extension typically responds to:
The extension usually excludes:
A loss-of-documents claim typically arises:
The handler’s response:
First, assess what has been lost. The professional firm produces a register of affected files and the likely document content of each.
Second, assess the reconstruction cost. The work to recover or recreate the documents — searches of public records, requests to counterparties, reconstruction from copies held by clients or third parties.
Third, address the client impact. Where a client’s matter is affected, the professional firm communicates with the client about the situation and the recovery plan. Where the loss has caused or will cause client loss, the client may have a separate claim under the PI cover.
Fourth, address any regulatory reporting. ICO notification may be required where personal data is affected by UK GDPR.
Cyber-driven loss is increasingly common. Ransomware attacks that encrypt files without paying the ransom can produce permanent loss; recovery from backups may be incomplete. The cyber policy and the PI policy may both respond to different aspects of the same event.
For the largest losses (a major fire destroying many years of files; a ransomware attack that wipes the firm’s archive), the recovery may take many months and cost millions. The PI extension’s sublimit may be inadequate; consequential client claims may take the matter into the PI policy’s main cover.
“Physical loss extension” — for fire, flood, theft of physical documents.
“Digital loss extension” — for system failure or cyber-event loss of electronic documents.
“Combined extension” — covering both physical and digital.
“Client-specific cover” — extension responding to claims by individual clients whose files are affected.
“Catastrophic loss cover” — higher sublimit for large-scale events.
A small solicitors firm suffers a server failure that destroys two years of email archive and 800 active client files. The IT investigation confirms no recoverable backup; the data is permanently lost.
Notification to the firm’s PI insurer the same day. The policy includes a loss-of-documents extension with £150,000 sublimit and a separate cyber extension with £250,000 sublimit.
Recovery work:
Five clients suffer specific loss because their matters were prejudiced:
The loss-of-documents extension responds to the £130,000 of reconstruction cost (within sublimit). The five consequential client claims fall within the main PI cover and are settled at approximately £85,000 total.
By Matt Bartlett, Director, on 2026-06-11. Next review: 2026-12-11.
This entry is part of the Apex Insurance Wiki. Last reviewed by Matt Bartlett on 2026-06-11. Apex Insurance Brokers Limited, FCA FRN 724952, Companies House 07014570. Not regulated advice — consult your broker on your specific position.
Apex Insurance Brokers serves UK professional services firms and commercial businesses. Call 0117 325 0027, email hello@apexinsurancebrokers.co.uk, or request a quotation.
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