Public liability vs professional indemnity is a question that matters most to businesses that both advise and do. The short version: public liability insurance is about injury to people and damage to property caused by your business activities, while professional indemnity is about financial loss caused by your advice, design or professional services. The two policies are built around different triggers, different claim types and different ways of measuring time, and the gap between them is where businesses get caught.
What Public Liability Responds To
Public liability typically responds to your legal liability for:
- Personal injury to someone who is not your worker, such as a customer who trips over a lead or a passer-by hit by falling material.
- Property damage to someone else’s property, such as the apartment below a bathroom renovation, a cracked driveway or a damaged underground service.
Products liability usually sits alongside it, for injury or damage caused by goods you sell, supply or install. Injury to your own workers is dealt with by workers compensation arrangements, which vary by state, not by public liability.
The key word is physical. Public liability is built around something tangible happening: a person hurt or property damaged. It is generally not designed to pay a client’s financial loss when your work is simply wrong but nothing has been physically damaged.
What Professional Indemnity Responds To
Professional indemnity insurance responds to claims that you breached a professional duty: negligent advice, an error in a design, an unsuitable specification, or a report that missed something. The loss is usually financial: the cost of fixing the problem, delays, lost revenue or work that has to be redone.
Think of an engineer whose footing design has to be reworked, a consultant whose recommendation costs a client money, or a designer whose drawings leave out a required element. Nobody has been injured and nothing may have been damaged, but the client has lost money and says it was your fault. PI policies also typically pay legal defence costs, which can be significant even when the claim fails.
Claims-Made Versus Occurrence: The Timing Difference
This is the difference that surprises people. Public liability is usually written on an occurrence basis: the policy that responds is generally the one in force when the injury or damage happened, even if the claim arrives years later.
Professional indemnity is usually written on a claims-made basis: the policy that responds is the one in force when the claim is made against you and notified to the insurer. That has practical consequences:
- Continuity matters. If PI lapses, work you did while insured can be left with no policy to respond when a claim arrives.
- Retroactive dates matter. Many PI policies only respond to work performed after a stated retroactive date. Changing insurers without preserving that date can leave earlier work exposed.
- Run-off matters. If you retire, sell or close the business, run-off cover can keep a PI policy in place for past work.
- Notification matters. Circumstances that might lead to a claim generally need to be notified during the policy period, not held back until a letter of demand arrives.
Businesses That Need Both
The need for both appears wherever advice and physical work sit in the same business:
- Design-and-install trades. A business that designs a solar system, a fire system, a hydraulic layout or a kitchen and then installs it. The installation exposure sits with public liability; the design exposure sits with professional indemnity.
- Consultants on site. Engineers, surveyors, project managers and safety consultants who advise but also walk sites, direct others or handle equipment.
- Design-and-construct builders. Where the contract makes the builder responsible for design as well as construction.
- Contractors who specify. A contractor who recommends a product or method, rather than simply installing what the client chose.
Trades are not immune. A plumber who lays out the hydraulics for a renovation, not just the pipework, has stepped into design. Our plumber insurance guide covers the trade side of that picture.
Common Misunderstandings
- “My public liability will pick up a design error.” Public liability policies commonly carry a professional services exclusion. A claim that arises from advice or design, rather than physical work, may fall outside it.
- “My PI will pick up damage on site.” Many PI policies exclude or limit bodily injury and property damage, on the basis that public liability deals with them.
- “Free advice does not count.” Advice given without a fee can still create a duty of care. Not charging for it does not necessarily protect you.
- “The occupation description is just paperwork.” The business description on the schedule defines what the policy was written for. If it says installer and the claim comes from design, expect questions. Our article on why the occupation matters on liability insurance explains how this plays out.
- “Faulty work is a liability claim.” Both policies generally exclude the cost of redoing your own defective work. They respond to liability to others, not as a warranty on your workmanship.
What Contracts Commonly Ask For
Head contracts, subcontracts and consultancy agreements commonly ask for both covers, each with a stated limit, and some ask for PI to be maintained for a period after the work ends. Principals commonly ask to see a certificate of currency before work starts.
Read the insurance clause before you sign: the limits required, whether the principal must be noted on the policy, and whether any PI run-off requirement is one you can realistically keep. Our guide to subcontractor insurance requirements goes through the usual clauses.
Choosing Between Public Liability vs Professional Indemnity
Start with what could go wrong:
- If a mistake could hurt someone or damage property, you need public liability.
- If a mistake in your advice, design or specification could cost a client money without any physical damage, you need professional indemnity.
- If both apply, you need both, and the business description on each policy should match the work you actually do.
Then check the limits your contracts ask for, the retroactive date on any PI policy, and how the two wordings deal with the overlap. Placing both through the same broker makes it easier to see where one policy stops and the other starts. Our public liability insurance page sets out the covers we arrange for contractors and trades.
Common Questions
Can one policy include both public liability and professional indemnity?
Combined policies exist for some occupations, but many businesses hold the two separately. What matters is that each exposure has a policy that responds and that the wordings fit together.
I only give advice from my office. Do I need public liability?
Often, yes. Clients visit, you attend meetings on other premises, and landlords commonly ask for it in leases. The exposure is smaller, but it rarely disappears.
What happens to my PI when I retire?
Because PI is usually claims-made, a claim about past work can arrive after you stop trading. Ask about run-off cover before the policy lapses.
Talk It Through
Request a quote or call 1300 983 940 and we will look at where your advice ends and your physical work begins, and make sure both sides have a policy behind them.
General advice only. This article does not take your objectives, financial situation or needs into account. Consider the relevant PDS and Target Market Determination before deciding on a policy.