Joint ventures · PI

PI insurance for professional joint ventures — UK 2026

Reviewed by Matthew Bartlett, Director, Apex Insurance Brokers Limited · Published 15 July 2026

Professional joint ventures — solicitors partnering with accountants on M&A; engineers and architects on major projects; consultancies collaborating on public-sector bids — need specific PI arrangement.

The JV PI challenge

Each partner has their own PI — but the JV combines their activities.

Joint and several liability doctrine can mean one partner's error becomes another's claim.

Client contracts often demand a JV-level PI arrangement.

The 'lead' firm may face additional exposure through indemnity provisions.

PI structuring options

Each firm's own PI — simpler but leaves aggregation risk and JV-level gaps.
Named additional insured — each firm names JV partners on their PI. Modest cost.
Joint PI policy for the JV — separate policy issued to JV as legal entity. Cleaner but more expensive.
Project-specific PI — for major single-project JVs. Bespoke placement.

Aggregation and joint liability

Joint and several liability doctrine: each JV partner is liable for the whole loss.

Net-contribution clauses can limit exposure to fair share — ideal for JV contracts.

PI wording aggregation clauses treat 'related' claims as one — matters for multi-partner claims.

The 'last man standing' partner absorbs full loss if others are insolvent — PI provides financial backstop.

What to arrange before starting the JV

Confirm each JV partner's PI limits and wording alignment.
Agree PI arrangement structure with the client — often reflected in contract.
Named-additional-insured endorsements arranged where relevant.
Retroactive-date discipline for the JV period.
Net-contribution clause in the JV contract where possible.
Documentation of JV work-scope for insurer clarity.

Practical scenarios

Design-and-construct JV (architect + engineer + contractor): usually project-specific PI plus each party's own.
Solicitor/accountant M&A partnership: named-additional-insured arrangements typical.
Public-sector bid consortium: often JV entity PI required by procurement.
International consortium: layered PI programme with jurisdiction-specific components.
Interim / short-term JV: additional-insured extensions on existing PI often sufficient.

Frequently asked

Do JV partners need shared PI?

Not always — often each partner's own PI plus additional-insured extensions is adequate.

What about joint and several liability?

Fundamental to JV PI structuring. Net-contribution clauses in JV contracts limit exposure.

Who buys the JV PI if we need it?

Usually the JV entity itself (if formed) or the lead partner — broker arranges the specifics.

Does JV PI cover disputes between JV partners?

Standard JV PI excludes partner-vs-partner disputes. Consider separate cover if needed.

What happens when the JV ends?

Run-off arrangements for the JV-period exposure. Typically 6 years for regulated professions.

Can each partner use their own broker?

Legally yes, but coordination matters. A single broker across the JV usually delivers better outcomes.

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Apex Insurance Brokers Limited is authorised and regulated by the Financial Conduct Authority. Firm reference number 724952. Registered in England and Wales, company number 07014570.