England & Wales · CPR 35 / FPR 25

BVExperts

Single Joint Expert in Business Valuation: A Solicitor's Guide

What is a Single Joint Expert?

A Single Joint Expert (SJE) is one expert instructed jointly by both parties - or appointed by the court - to provide a single valuation report shared by all parties. In business valuation disputes, SJEs are used in civil proceedings under CPR 35.7 and family proceedings under FPR 25.11.

The SJE owes duties to both parties and the court. Costs are typically shared equally unless the court orders otherwise.

When courts order SJE appointment

Courts favour SJEs where expert costs would be disproportionate, issues are narrow, or parties agree on joint instruction. Case management directions may specify the expert's identity or require parties to agree a shortlist.

High-value shareholder disputes and complex M&A litigation more often feature party-appointed experts with joint meetings - but SJE remains available where appropriate.

Joint letter of instruction

Both parties should agree a joint letter of instruction defining scope, valuation date, documents, questions, timetable, and fee arrangements. Disputes over instruction should be referred to the court promptly - experts should not proceed on conflicting instructions.

Written questions and limitations

Parties may put written questions to the SJE after the report. The SJE is not an advocate for either side - if the report is unfavourable, challenge through cross-examination or criticism of methodology, not improper pressure on the expert.

Compare SJE versus party-appointed experts on cost, control, and adversarial testing when deciding instruction strategy at the outset of litigation.

Single Joint Expert (SJE) vs party-appointed expert (PAE) in UK business valuation
TopicSingle Joint Expert (SJE)Party-appointed expert (PAE)
InstructionJoint letter by both parties or court appointmentEach party instructs their own expert
ReportOne shared reportSeparate reports; joint statement after meeting
CostTypically shared equallyEach party bears own expert costs (subject to costs order)
Best forLower-value or narrow disputes; court-directed economyHigh-value or materially divergent valuations
RulesCPR 35.7 / FPR 25.11CPR PD35 / FPR PD25A joint meeting process

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