How much PI insurance (broker E&O) do I need as an insurance broker in the UK?

~3 min read

Reviewed by Matthew Bartlett, Director · Last reviewed 2026-07-08

Insurance brokers face professional indemnity exposure of their own, typically called Errors and Omissions (E&O) cover. The FCA MIPRU sourcebook sets the compulsory framework — MIPRU 3 requires PI cover for the firm; MIPRU 4.4 sets minimum capital resources. This entry sets out how a UK insurance broker should size its own E&O cover, the network vs directly-authorised distinction, and the specific claim triggers that shape the market.

Short answer — market ranges

Small directly-authorised broker (up to £250k income): £1m primary each and every under MIPRU minimums plus reasonable margin.
Small-to-mid broker (£250k–£1m income), mixed personal and commercial lines: £2m–£5m primary common.
Mid-sized broker (£1m–£5m income): £5m–£10m primary layer.
Larger broker (£5m+ income), specialist commercial lines: £10m–£25m tower typical.
Appointed Representative: covered by the network's E&O programme. The AR should confirm the network's cover meets client contract requirements and network agreement provisions.

MIPRU minimum capital resources

MIPRU 4.4 sets minimum capital resources at the greater of £10,000 or 5% of annual income for insurance mediation firms. Sizing E&O should align with the firm's capital position — a small firm holding the £10k minimum with £5m E&O cover has capital that would not sustain a claim in the low-hundreds-of-thousands range beyond insurance response. This shapes deductible sizing decisions.

Network vs directly-authorised

Directly-authorised brokers hold their own FCA authorisation and place their own E&O cover. Appointed Representatives operate under a principal firm's authorisation and are covered by the principal's E&O policy for regulated activities within the AR agreement scope. The AR agreement typically sets deductible arrangements and specific coverage responsibilities.

Broker E&O claim triggers

Four scenarios generate a disproportionate share of broker E&O claims.

Failure to arrange cover. Client instructs broker to arrange cover; broker fails to complete the placement; client suffers uninsured loss when a claim arises. Direct causation, typically clear quantum.

Inadequate scope of cover. Broker places cover that turns out to have insufficient limits, gaps, or exclusions that catch a subsequent claim. Client argues broker should have identified the risk and placed cover accordingly.

Failure to advise on a claim. Broker fails to notify insurer promptly, or fails to advise the client on notification protocols. Loss of insurer response due to notification failure.

Failure to advise on regulatory or material change. Broker fails to flag that changes to the client's business (new premises, new activities, staff changes) require notification to the insurer. Coverage subsequently disputed.

The commercial vs personal split

Broker E&O for personal lines carries lower average severity than commercial lines. Brokers with concentrated commercial books — professional indemnity, D&O, cyber, employers' liability at scale — carry higher severity claim exposure and typically size cover accordingly.

Worked example

Illustrative only. A four-broker directly-authorised firm, £850k income, 70% commercial (mixed EL/PL, property, PI resale, motor) and 30% personal lines. Broker recommendation: £5m primary E&O layer with specific wording covering the commercial book activities. Deductible at £5k reflecting the firm's capital position. Claims record: two paid claims in six years at £8k and £22k respectively — insurer prices in line with a clean-modest book. Six-year run-off costed as a planning number.

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