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When Contractors Create Exposure: Understanding Vicarious Liability in PI

Written by Kim Beavis | 04/03/2026 9:19:42 PM

A growing business brings in help.

A consultant for specialist advice. A contractor to manage overflow work. A temporary professional to meet demand.

From the client’s perspective, it makes sense. From a liability perspective, this is often where things get complicated.

Where vicarious liability starts

Contractors and consultants usually operate independently. They’re engaged for a defined purpose and a defined period. However, once they’re acting on behalf of a business, their actions can still create exposure for the principal.

This is where vicarious liability comes into play.

Vicarious liability arises when a business is held legally responsible for the negligent acts or omissions of a contractor or consultant acting on its behalf.

Even where a contractor is technically independent, a claimant may still pursue the principal if the loss arises from work performed in the course of that engagement.

A common example is incorrect professional advice. If a consultant’s advice causes financial loss, the client may pursue the principal business, regardless of who actually gave the advice.

How does Professional Indemnity respond to contractor and consultant claims?

Professional Indemnity insurance can respond to vicarious liability arising from the acts of contractors and consultants. However, how that cover operates (and who it applies to) is where brokers need to tread carefully.

In most cases, the policy responds to the principal’s liability, not to claims made directly against the contractor or consultant.

That means a PI policy may respond where the insured business is pursued for a contractor’s error, but it will not automatically protect the contractor against claims made against them in their own right.

This distinction matters. It shapes how claims are managed and whether costs can be recovered from the party responsible for the error.

What brokers should be reinforcing with their clients

There are two practical risk controls brokers should consistently emphasise.

First, contractors and consultants should hold their own Professional Indemnity insurance appropriate to the services they provide.

Second, the principal should obtain and retain evidence of that insurance, such as a current certificate of currency.

These steps won’t prevent claims, but they can materially reduce downstream risk and improve the ability to recover costs when the contractor is ultimately responsible for the loss.

Common engagement scenarios

Vicarious liability exposures arise across many professions and business models. Common examples include:

  • Real estate agencies engaging contracted salespeople
  • Building projects using specialist design or advisory services
  • Small businesses engaging temporary professional support during periods of growth

In each case, it’s the structure of the engagement, not the job title, that determines exposure.

Where problems often arise

Issues often arise when a business assumes that engaging a contractor, or agreeing contractually to “stand behind” their work, automatically resolves the insurance position.

In practice, legal responsibility, contractual arrangements and insured status are not the same. Misunderstandings tend to arise when insured vs non-insured status is assumed rather than clarified by reference to the policy wording and schedule. For brokers, this is a point where early review matters – particularly in arrangements involving contractors or consultants.

For more on where these assumptions commonly break down, see our broker guidance on where insured and non-insured distinctions are often misunderstood in PI arrangements.

What underwriters look at

When assessing contractor exposure, underwriters typically consider several key factors, including:

  • The scope of services being performed
  • Contractual responsibilities and indemnities
  • Whether the contractor assumes full responsibility for their work

Just as importantly, the professional services description must accurately reflect the services provided by contractors and consultants. If those services fall outside the description, the policy may not respond as expected in the event of a claim.

The takeaway for brokers

Contractor arrangements are now standard across many professions. This makes vicarious liability a routine, but often overlooked, exposure.

For brokers, the key is helping clients understand where vicarious liability applies, how PI policies typically respond, and what steps can reduce exposure before a claim arises.

Clear conversations upfront lead to fewer surprises later. Fewer surprises mean fewer headaches all round.

Compliance note

This article provides general information only and does not take into account individual circumstances. Coverage is subject to policy terms, conditions, exclusions and limits. Brokers should refer to the relevant PDS and their client’s certificate of currency.