Public Liability Insurance NZ: Cover, Costs and What to Compare

If your business works at a client’s place, welcomes customers through the door, or sells a product other people use, one accident can turn into a bill you did not budget for. A visitor trips over a cable. A pipe you fitted leaks overnight and ruins flooring below. None of it was intended, and that is exactly the territory public liability insurance is built for.

This guide is the detailed companion to our wider overview, Business Insurance NZ. That page covers the full range of cover. This one goes deep on liability alone.

Quick answer

Public liability insurance in New Zealand covers your legal liability to a third party, meaning someone outside your business, when your business activities accidentally cause property damage or personal injury, plus the legal costs of defending a claim. It does not fix your own faulty work, it does not repair your own property, and it does not replace cover for advice. That last risk belongs to professional indemnity insurance. Most small businesses are not forced by law to hold this cover, but many cannot work without it because a head contractor, council, landlord or venue requires it in writing. Price depends on what you do, turnover, staff numbers, the limit you choose and claims history. There is no standard premium, so compare wording, limit, excess and exclusions, not just the quote.

What public liability insurance actually is

Insurers here sell this cover under a few names. NZI describes it as broadform or general liability cover, and Tower uses the term general liability. The labels differ. The core promise is consistent.

The policy steps in when a third party says your business is legally liable for loss they have suffered. Two kinds of loss sit at the centre: damage to property that belongs to someone else, such as a client’s building, stock or belongings, and personal injury to someone who is not your employee, such as a customer, visitor or passerby.

When a claim is accepted, the insurer typically handles the defence and pays the amounts your business is legally liable to pay, up to the limit in your schedule. That can include a negotiated settlement or damages awarded by a court, as well as defence costs. NZI makes a point worth noting: defence costs matter even when you believe you did nothing wrong, because a claim still has to be answered and investigated.

Think of it as cover for the consequences of an accident, not the accident itself. If a ladder dents a client’s car, that repair is the sort of consequence this policy concerns. Repainting your own van is not.

Products liability and completed work

Many NZ policies bundle or sit alongside products liability. Public liability is generally about harm arising from your activities while you work. Products liability is about harm arising from a product you supplied, or from work you have already completed.

The Insurance Council of New Zealand illustrates the idea in its small business guide with a firm that builds and sells heaters. If a faulty heater catches fire at a customer’s home and damages the house, the firm could be liable for that damage. Replacing the faulty heater itself is a different problem.

For tradies, completed work is often where the real exposure lies. A fault can show up weeks after a job as water damage in the room below. Check whether completed work cover is included, limited, or separate.

How ACC changes the picture in New Zealand

This part confuses people who have read overseas guides written for Australia, Britain or the United States.

ACC runs a no-fault scheme. In ACC’s own summary, everyone in this country, including visitors, is covered if they are injured in an accident, regardless of fault. Cover can help with treatment, support at home and at work, and income help during recovery. The injury must result from an accident, and ACC does not cover illness or non-accident conditions.

In exchange, people generally cannot sue for compensatory damages for personal injury covered by ACC. A summary in an official MBIE review describes the same trade off: individuals give up that right to sue in return for scheme cover. Claims for exemplary damages, meant to punish truly outrageous conduct rather than compensate for loss, remain possible in narrow circumstances.

For a business owner, three consequences follow. First, the large compensatory personal injury lawsuits that dominate foreign articles are far less common here because ACC absorbs much of that cost. Second, ACC does not pay for property damage. If your work floods a client’s premises or destroys their stock, that bill is where public liability cover earns its keep. Third, gaps remain around the edges of ACC. Tower notes that an employee injured in a way ACC does not cover could still bring a claim against the employer, which is why employers liability exists separately. NZI makes a similar point, noting ACC does not cover every kind of harm, including some stress related and long term conditions. Public liability is not a substitute for employers liability or for meeting health and safety duties.

In short: in New Zealand, think of public liability first as property damage and legal defence cover, with the personal injury element shaped, and narrowed, by ACC.

What public liability usually covers

Wordings differ, so treat this as a map for reading a schedule rather than a promise about any one product. A typical NZ section is intended to respond to accidental damage to a third party’s property caused by you, your employees or, in some wordings, your products; to personal injury to a third party, to the extent a legal liability claim can still be made in the New Zealand setting described above; to legal defence costs, even where liability is disputed; and to compensation or settlement amounts you are legally liable to pay, up to the limit and subject to sublimits and the excess.

Some wordings add tenancy related features. Tower lists tenant’s liability for damage to premises you lease, and landlord’s liability for premises you own but do not occupy, among its business liability features. Tower also states a sublimit for punitive and exemplary damages under general liability of up to $1,000,000. A sublimit is a cap inside the main limit, not your overall cover level.

Notice the repeated word: liability. The insurer is not paying every cost that follows an incident. Keep incident reports, photos and records to establish what happened.

What it does not cover

Exclusions cause most disappointment at claim time, because buyers assume cover is broader than the wording allows.

Your own property. Damage to your own building, tools, vehicle or stock belongs under material damage, tools, or commercial motor cover, not public liability.

The cost of fixing faulty workmanship itself. If a joint was poorly soldered, redoing that joint is generally your cost. What may be covered is the resulting damage to other property. Vero’s business wording illustrates the distinction: putting right faulty work is treated differently from subsequent damage to other property. That distinction catches out builders, plumbers and installers every year, so ask about it directly.

Pure financial loss with no injury or property damage. If a client says your delay cost them money, but nothing was damaged and nobody was injured, public liability will often not respond. That usually points to professional indemnity or a contract dispute.

Professional advice. A bad recommendation is not the same risk as a dropped tool. See the next section.

Employee injuries. Workers are handled through ACC in the main, with employers liability covering some situations ACC does not.

Deliberate acts, known defects and failure to take reasonable precautions. Insurers do not cover intentional harm, and wordings commonly exclude claims linked to defects you knew about and did not disclose, or to a failure to comply with legal and safety requirements.

Fines and penalties. NZI notes that fines under the Health and Safety at Work Act 2015 cannot be covered, although a separate statutory liability policy may cover defence costs and reparation in some circumstances. Public liability is not statutory liability.

Property in your care, custody or control. Many wordings limit damage to property you are holding, storing or working on directly. Cleaners, repairers and couriers should check this exclusion with particular care.

Consumer Protection’s guidance on poor quality work is a reminder from the other side of the counter. A customer who receives a service not carried out with reasonable care and skill can seek a remedy under the Consumer Guarantees Act, including having the work fixed. Insurance does not remove those obligations.

Public liability versus professional indemnity

These two covers are bought together so often that they blur into one. They should not.

Public liability responds to accidental physical harm: injury to a third party or damage to their property. Professional indemnity responds to financial loss a client suffers because of your advice, design, or service, such as negligent advice or an error in a report. NZI describes professional indemnity in those terms, as cover for legal costs and compensation where advice proves unsuitable and a client suffers financial loss.

Two examples make the line clear. A consultant who spills coffee over a client’s server has caused property damage: think public liability. A consultant who recommends the wrong server setup, so the client loses money when it cannot cope, has caused financial loss with no accidental damage: think professional indemnity.

Many professionals need both. Read our guide to Professional Indemnity Insurance before assuming a liability policy covers advice risk, and browse related guides in our Finance category.

Who needs it, and when it is required

No single NZ law makes public liability compulsory for every business. In practice, though, cover is often a condition of doing the work at all.

You are likely to need it if the public visits your premises, if you work at client sites or in public places, if you run events or stalls, if you supply products that could damage property if they fail, or if you subcontract to a larger firm.

Contractual requirements are where the compulsion really lives. Business.govt.nz advises firms to treat insurance as part of managing risk and notes that no single policy covers every risk. NZ Transport Agency Waka Kotahi states that all of its professional services contracts for highway work require public liability cover, with minimum requirements set by the agency. Councils do the same locally. Whakatane District Council, to take one published example, requires hirers running commercial or higher risk events to arrange their own cover, with a minimum of $2,000,000 stated on its fees and insurance page. Market operators and commercial landlords use similar clauses in stallholder terms and leases.

Read those documents before you buy. The required limit and any demand for a certificate of currency will be in the contract or lease, not in a generic article.

Sole traders should pay special attention, because a large liability bill can reach further than the business bank account. If you are still choosing work, our guide to Business Ideas helps you think before you commit to contracts with insurance conditions.

Limits of cover: how much is enough?

The limit is the maximum the insurer will pay under that section, subject to the wording, sublimits, and whether it applies per occurrence, in the aggregate over the policy period, or both. Vero’s wording frames its limit and sublimits in those terms, with the figures set out in the schedule. Your schedule is the document that matters, not the brochure.

Work backwards from exposure, not forwards from the cheapest quote. Start with any contractual minimum: if a council, venue or head contractor specifies an amount, that is your floor. The $2,000,000 minimum in the Whakatane example shows how requirements are usually expressed, as a round figure in the terms, with proof required before the job proceeds.

Next, consider the worst plausible property damage scenario. A gardener faces a different ceiling from a contractor inside a commercial building with expensive fitout and neighbouring tenancies. Water and fire spread, which is why limits are expressed in millions.

Then check defence costs, sublimits and the excess, including whether defence costs sit inside or on top of the limit.

This article does not list a menu of standard market limits or average premiums, because the insurer pages checked did not publish a general menu in that form. Where a figure is stated, it is tied to the source that published it. Treat unsourced tables of typical limits or prices with caution. Business.govt.nz makes the broader point well: insurance should fit your risks and deliver value, and talking to a broker about the cover you need is a sensible step.

What drives the premium

No responsible guide can give you a reliable dollar figure without knowing your business. Focus instead on the factors insurers use to set the price.

• Your occupation and activities. Hot work, work at height, and work with water and electricity in occupied buildings are viewed differently from desk based work. Describe your activities accurately.
• Turnover and size. More sites and more work mean more chances for something to go wrong, so turnover, wages and staff numbers are common rating inputs.
• Where and how you work. Working in homes, public spaces, construction sites or high value premises changes the exposure. Using subcontractors does too.
• The limit and excess you choose. A higher limit costs more. A higher excess usually lowers the premium and raises what you pay first on a claim.
• Claims history. A pattern of small property damage claims tells an insurer something about supervision.
• Risk management. Site checks, records, training and incident reporting help present your firm as a well run risk. The Insurance Council’s guide stresses the same habit: know your risks first, then buy cover that matches them.
• What else is bundled. Public liability is often bought in a package with material damage, business interruption, statutory liability, employers liability and motor cover. Bundling changes the total, so a figure from another firm’s package tells you little about your own quote.

If a premium looks cheap, read the exclusions first. If it looks expensive, ask which activity drives it. Never misdescribe work to cut a premium. The Financial Markets Authority expects insurers to treat customers fairly, and honest disclosure is the foundation of a policy that will respond.

How to compare policies properly

Price matters, but it is the last thing to compare, not the first.

1. Confirm the activities covered match what you do, including occasional work, against the business description in the schedule.
2. Check completed work and products cover. If harm could emerge after you leave site, this is not a minor detail.
3. Read the exclusions that bite in your trade: faulty workmanship, care, custody or control, professional advice, and contractual liability, which matters where a contract asks you to accept more responsibility than the general law imposes.
4. Compare limits, sublimits and excess side by side, including any sublimit such as the exemplary damages sublimit Tower describes.
5. Ask how defence costs are treated. Are they within the limit or in addition to it? The answer changes what the headline limit really gives you.
6. Check territorial limits if you sell online or work for overseas clients.
7. Look at claims support. The Insurance Council’s guide suggests asking a broker about their claim services, experience and how they are paid, which is practical advice whether you use a broker or buy direct.

Keep the full wording. Claims are decided on wordings and schedules.

How a claim usually works

Make the site safe. Help anyone injured, call emergency services if needed, and take reasonable steps to stop a leak, isolate power, or secure the area.

Record what happened. Photograph the scene and any fitting involved, keep the failed part if safe, and note times and who was present.

Notify your insurer or broker promptly. Do not wait for a solicitor’s letter. Many wordings require prompt notice of incidents that could become a claim.

Do not admit liability or promise to pay. You can express concern and help practically without accepting legal fault. Let the insurer assess liability.

Cooperate with the investigation. The insurer may appoint a loss adjuster, engineer or lawyers. NZI’s account of an electrician’s claim shows the shape of that process: lawyers and an electrical engineer established the cause of a fire after lights were installed, and the claim was then settled, with defence costs also paid in that example.

If you disagree, use the complaints path. Raise it with the insurer first. The FMA notes that people are entitled to fair treatment and can complain to the insurer or to its dispute resolution scheme, where free, independent resolution is available. Insurers that belong to the Insurance Council must also follow the Fair Insurance Code.

How it fits inside a wider business package

Public liability rarely stands alone for long. Material damage cover protects your own building, fitout, stock and equipment. Business interruption helps with lost income after an insured event damages your premises. Commercial motor covers vehicles. Statutory liability addresses defence costs for unintentionally breaching a statute. Employers liability addresses some employee claims outside ACC.

Business.govt.nz makes the governing point in paraphrase: no single policy covers all risks, and it is possible to be over insured as well as under insured. The task is fit, not volume. Review the package when you sign a bigger contract, move premises, launch a product, hire staff, or start a new service line, because that is when limits and business descriptions drift out of date.

FAQs

Is public liability insurance compulsory in New Zealand?

Not for most businesses under a single general law. It is, however, commonly required by contract, lease or venue terms, and proof is usually asked for before you start.

Does ACC mean I do not need public liability insurance?

No. ACC helps with personal injury from accidents on a no fault basis and does not pay for property damage. It also bars most compensatory personal injury lawsuits for injuries it covers. Liability for damage to someone else’s property and defence costs are the main reasons businesses still hold this cover.

Does public liability cover damage caused by my products?

Often, products liability is included within or alongside a public liability policy and addresses damage caused by products you supply or work you have completed. Wordings vary, so confirm it in your schedule. Cover for damage a faulty product causes is different from paying to replace the faulty product itself.

Will it pay to fix my poor workmanship?

Generally, no. The cost of putting right your own faulty work is usually excluded. Damage that work causes to other property may be covered, depending on the wording.

How much cover should a small business hold?

Start with any minimum a contract, lease or venue requires, then test it against the worst plausible property damage your work could cause. If a client specifies $2,000,000, holding less means you do not meet the contract. If your work could damage a building worth far more, a contract minimum alone may be too low.

Does it cover my employees if they are injured?

Not as its main purpose. ACC covers most accidental injuries, and employers liability is the separate cover for some employee claims ACC does not cover. You still need to meet your health and safety obligations regardless of insurance.

What is the difference between public liability and professional indemnity?

Public liability is about accidental injury to a third party or damage to their property. Professional indemnity is about financial loss caused by your advice, design or professional service. Many consultants need professional indemnity as the primary cover and public liability alongside it.

How do I prove I am insured?

Ask for a certificate of currency showing the insured name, period of cover and limit. Venues usually ask for it by name.

Sources

• Business.govt.nz, governance, risk and getting insured: https://www.business.govt.nz/strategy-and-performance/governance/laying-the-groundwork-for-good-governance
• ACC, injuries the no fault scheme covers: https://www.acc.co.nz/im-injured/what-we-cover/injuries-we-cover
• ACC, overview of cover: https://www.acc.co.nz/im-injured/what-we-cover
• MBIE, external review of ACC: https://www.mbie.govt.nz/dmsdocument/31713-external-review-of-accident-compensation-corporation
• Insurance Council of New Zealand, Your First Guide to Business Insurance: http://icnz.org.nz/wp-content/uploads/2023/01/IC_smallbusiness_v11.pdf
• NZI, business liability cover: https://www.nzi.co.nz/business-cover/liability-cover
• Tower Insurance, business liability cover: https://www.tower.co.nz/business-insurance/business-liability/
• NZ Transport Agency, insurance for professional services contracts: https://www.nzta.govt.nz/roads-and-rail/highways-information-portal/technical-disciplines/insurance/professional-services
• Whakatane District Council, fees, bonds and insurance: https://www.whakatane.govt.nz/node/2632
• Consumer Protection, poor quality or incomplete work: https://www.consumerprotection.govt.nz/general-help/common-consumer-issues/poor-quality-or-incomplete-work
• Financial Markets Authority, insurance and dispute resolution: https://www.fma.govt.nz/consumer/everyday-finance/disputes-and-consumer-protection/

Disclaimer

This article is general information only. It is not insurance, legal or financial advice and does not recommend any product or provider. Wordings, limits and exclusions differ between insurers. Read your own wording and schedule, and get advice from a licensed broker, insurer or financial adviser before you buy or renew.