Contribution rights in PI insurance are the statutory and common-law rights that allow a professional (or their insurer) who has paid a claim to recover a fair share from any other party who is also liable for the same damage. The principal UK source is the Civil Liability (Contribution) Act 1978. These rights sit behind almost every multi-party professional negligence claim.
What contribution rights mean in PI insurance
Section 1 of the Civil Liability (Contribution) Act 1978 provides that any person liable in respect of any damage suffered by another person may recover contribution from any other person liable in respect of the same damage. The damage must be the same — not the same transaction, not the same project, but the same loss. Section 2 directs the court to assess contribution on the basis of what is “just and equitable” having regard to the extent of that person’s responsibility for the damage.
In a PI context, this means a professional who is sued alongside another professional, a sub-contractor, an adviser or any other party can seek a share of the eventual liability from that co-defendant. The right exists regardless of whether the claimant chose to sue both parties, and regardless of any contract between the defendants. The insurer who indemnifies the professional then stands in the firm’s shoes to pursue the same recovery — see below on subrogation.
Contribution rights are particularly important in construction projects, large transactional matters, joint advisory engagements and any situation where multiple professionals contribute to the same outcome. A surveyor and a solicitor advising on the same purchase, two architects on the same scheme, or an accountant and a tax adviser on the same restructuring may all find themselves co-defendants whose contribution positions need to be worked out.
How contribution rights work in practice
When a claim is notified to a PI insurer, the early investigation typically asks two questions in parallel: is the firm liable, and if so, who else might be liable for the same damage. The presence of credible co-defendants changes the economics of the claim materially.
Several features follow:
- Subrogation — most UK PI wordings give the insurer the right, after paying a claim, to take over the insured’s rights of recovery in the insured’s name. That includes the right to pursue contribution from co-defendants. See the cover-side mechanics in voluntary assumption of liability and related cover concepts.
- Early co-defendant disclosure — insurers will usually ask, at notification, who else worked on the matter and what their roles were. The earlier a credible contribution route is identified, the earlier the insurer can preserve evidence, send pre-action correspondence, and bring the co-defendant in by Part 20 proceedings if necessary.
- Settlement strategy — knowing that a meaningful contribution recovery is achievable can change whether the insurer settles early, the level at which it is prepared to settle, and how settlement is structured (for example, reserving the right to pursue contribution after settlement).
- Limitation — section 10 of the Limitation Act 1980 sets a two-year period for contribution claims, running from the date on which the right accrues (broadly, the date of judgment or settlement). This is shorter than the underlying limitation period for the primary claim and is often overlooked by firms handling matters in-house.
Worked example
Consider a Bristol architectural practice with £100,000 fee income, a £1m each-and-every PI limit and a £5,000 excess. The practice designs a mixed-use refurbishment. The structural engineer (a separate firm) signs off the structural design. Two years after completion, defects appear and the developer claimant alleges design failures.
The developer sues both the architects and the structural engineer for £600,000. After investigation, the parties accept the loss is genuine and exchange expert evidence. The architects’ PI insurer concludes the responsibility split is roughly 40% architect, 60% engineer. The case settles at £500,000.
If the architects’ insurer pays the full £500,000 first (because the engineer’s insurer disputes proportions), the architects’ insurer is entitled to pursue the engineer for a contribution of approximately £300,000 under the 1978 Act. The architects do not see this recovery directly — it flows back to the PI insurer under the subrogation provisions of the policy. The architects’ own excess of £5,000 is dealt with on the indemnity payment side and is normally not refunded out of contribution recoveries except by negotiation.
The figures are illustrative. The architects’ practical takeaway is that prompt notification, full co-defendant disclosure, and preserved documentation enabled the insurer to make a meaningful contribution recovery, which feeds through to the firm’s claims experience and renewal pricing.
When this matters most
Multi-disciplinary projects. Construction, infrastructure and large transactional work routinely involve several professionals whose advice or design overlaps. When a claim arrives, the contribution map between them often determines whether one firm carries the whole loss or shares it.
Joint and several liability exposure. Where a claimant can recover the whole loss from any one defendant, the firm that pays is dependent on contribution rights to redistribute the burden. See joint and several liability.
Sub-contracted or outsourced work. Where a regulated firm sub-contracts to another professional (for example, a solicitor instructing a costs draftsman, or an accountant outsourcing audit fieldwork), the contractual indemnity from the sub-contractor is often supported by contribution rights at common law and under the 1978 Act.
Common variations and market wording
UK PI wordings approach contribution and recoveries with a range of standard provisions. Look for:
- “Subrogation” clause — the insurer’s right to step into the insured’s recovery rights after payment. Some wordings expressly include contribution claims.
- “Co-operation and assistance” clause — the insured must co-operate in any contribution or recovery action the insurer wishes to pursue.
- “No prejudice” or “hold-harmless” drafting — the firm should not, without consent, sign agreements that prejudice contribution recovery (for example, a settlement that releases all parties from claims arising out of the project).
- “Allocation of recoveries” wording — sets out how any recovery is split between insurer, insured (in respect of excess), and any uninsured losses. Wordings vary; some prioritise the insurer, others share recoveries pro rata.
The schedule and the recovery provisions of the wording govern. Firms should not assume a particular approach without checking.
Related concepts
- Joint and several liability in PI — the underlying liability rule that makes contribution rights important.
- Proportionate liability — the contrasting approach used in some jurisdictions.
- Breach of duty of care — the underlying tort that triggers the liability being shared.
- Aggregation of claims — relevant where one event triggers multiple claims and contribution flows.
- Quantum of a PI claim — the loss assessment that drives contribution proportions.
Frequently asked questions
Are contribution rights automatic, or do I need to claim them?
The rights exist by statute, but recovery is not automatic. A contribution claim must be brought, either by Part 20 proceedings inside the original action or by separate proceedings within the two-year limitation period under section 10 of the Limitation Act 1980. The PI insurer typically drives this process under subrogation, but the firm should not assume it is happening without confirming with the claims handler.
Can I pursue contribution from an unregulated party?
Yes. The 1978 Act applies to any person liable in respect of the same damage, not just regulated professionals. Sub-contractors, consultants, suppliers and individuals can all be subject to contribution claims if they share responsibility for the loss. The practical question is whether they are good for the money — uninsured or insolvent co-defendants offer limited recovery prospects.
What if my co-defendant is uninsured or insolvent?
The contribution right still exists, but recovery may be illusory. This is a key reason PI insurers ask about co-defendant insurance status at notification. If a co-defendant is uninsured, the firm and its insurer may end up bearing more of the loss than the responsibility split would suggest. Where contracts allow, requiring evidence of PI cover before instructing a sub-contractor or fellow professional helps.
Does contribution apply to costs as well as damages?
The Act applies to the damage suffered by the claimant, which the courts have interpreted broadly. Costs paid to the claimant under a costs order are generally included. Defence costs incurred by the paying defendant are not usually recoverable as contribution, although they may be recoverable from the co-defendant on different bases in some circumstances. The position should be confirmed with the insurer’s litigation team.
What is “just and equitable” apportionment?
Section 2 of the 1978 Act directs the court to assess contribution on the basis of what is “just and equitable” having regard to the extent of each defendant’s responsibility for the damage. There is no fixed formula. The court takes into account causation, blameworthiness, the relative roles of the defendants, and the scope of each party’s duty. Expert evidence and contemporaneous documents are often decisive.
How does subrogation interact with my excess?
When the insurer makes a contribution recovery, the wording usually directs that the recovery is applied first to amounts the insurer paid out (so the insurer is restored before the firm sees any benefit). The firm’s excess is normally a deduction from indemnity rather than a separate insurer payment, so it is typically not refunded from contribution recoveries except by negotiation. The wording governs and varies between insurers.
Should I tell my insurer about possible co-defendants at notification?
Yes — early disclosure of every party involved in the matter is in the firm’s interests. The insurer needs the information to investigate, preserve evidence, send pre-action protocol letters in good time, and protect contribution rights before limitation runs. Late disclosure of a credible co-defendant can prejudice recovery and, in extreme cases, raise policy issues.
Does contribution apply across jurisdictions?
The 1978 Act applies to claims governed by English law. Where the damage, parties or contract have a foreign element, conflict-of-laws rules determine whether English contribution rules apply or whether the law of another jurisdiction governs. For firms operating internationally, the policy territory and jurisdiction provisions matter — see worldwide jurisdiction PI cover.
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About Apex Insurance Brokers Ltd
Apex Insurance Brokers Ltd is a Bristol-based insurance broker authorised and regulated by the Financial Conduct Authority (firm reference number 724952). The company is registered in England and Wales under Companies House number 07014570. Contact: info@apexinsurancebrokers.co.uk | 0117 325 0027.
Last reviewed: May 2026 by Apex Insurance Brokers Ltd.
Important: this article is general information, not advice on your specific circumstances. For advice on PI insurance for your firm, contact us on 0117 325 0027 or info@apexinsurancebrokers.co.uk.