Public Liability Insurance

What is Public Liability Insurance?

Public liability insurance protects your business against claims made by third parties — customers, visitors, contractors, or members of the public — who suffer bodily injury or property damage as a result of your business activities. It is one of the most fundamental covers for any business that operates premises, employs staff, or interacts with clients and customers.

Whether you run a retail or hospitality business open to the public, a professional services firm meeting clients in person, or a construction and trades business working on third-party property, public liability insurance is your first line of financial defence.

Why Businesses Need Public Liability Cover

New Zealand's civil liability framework allows individuals and businesses to sue for negligence. While ACC covers personal injury from accidents, it does not extinguish all civil claims — and property damage claims are entirely outside ACC's scope. A single liability claim can quickly escalate into a six-figure legal dispute.

Public liability covers the full cost of managing a claim:

• Legal fees: Your defence counsel from first notification through to resolution
• Investigation costs: Expert witnesses, site investigations, technical reports
• Court costs: Filing fees, hearing costs, and any adverse cost orders
• Compensation: Settlement amounts or court-awarded damages

Without cover, businesses must fund these costs from operating cash or personal assets. For many SMEs, a single significant claim would be existential.

What Public Liability Insurance Covers in Practice

Bodily Injury Claims

A customer slips on a wet floor in your premises and suffers a fractured hip. ACC covers their medical treatment, but they sue for pain and suffering, consequential financial losses, and costs not covered by ACC. Your public liability policy funds the defence of the claim and any compensation awarded.

Property Damage Claims

A plumber working at a client's home accidentally causes a water leak that destroys the client's hardwood flooring and damages the apartment below. The repair costs run to $45,000. Without public liability insurance, the plumber funds this from personal savings.

Product Liability Claims

A food manufacturer supplies contaminated product that causes illness to multiple consumers. The resulting claims — individual compensation, regulatory costs, and third-party losses — are covered under the product liability section of the public liability policy.

Legal Defence Costs: Often the Largest Component

Even where your business is not found liable, legal defence costs for a significant claim can reach $50,000–$150,000. Public liability insurance covers these costs from the moment a claim is made, regardless of outcome.

Public Liability vs. Professional Indemnity: Understanding the Difference

Public liability covers physical injury and property damage claims. Professional indemnity insurance covers financial loss claims arising from your professional advice or services. Most professional services businesses need both:

• A consultant who trips a client in their office — public liability
• A consultant whose advice leads to a client making a poor investment — professional indemnity
• A tradesperson who damages a client's property while working — public liability
• A tradesperson whose design error causes the works to fail — professional indemnity

Choosing the Right Limit of Indemnity

The limit of indemnity is the maximum your insurer will pay in respect of any one claim (or series of related claims). Common limits in New Zealand range from $1 million to $20 million. Choosing the right limit depends on:

Contractual Requirements

Many commercial leases, client contracts, and government procurement requirements specify minimum public liability limits. Common thresholds:

• Commercial leases: $1–2 million minimum
• Government contracts: $5–10 million
• Local authority permits and licences: $2–5 million
• Large corporate supply chain requirements: $5–20 million

Nature and Scale of Operations

A small home-based business with minimal public interaction needs less cover than a large retailer with thousands of weekly customers, a construction company working on multi-million-dollar projects, or an events business operating in public spaces.

Industry Risk Profile

High-risk industries — construction, manufacturing, events, healthcare — require higher limits than lower-risk professional services or home-based businesses. A specialist broker can assess your specific exposure and recommend an appropriate limit.

Policy Exclusions to Be Aware Of

Standard NZ public liability policies typically exclude:

• Contractual liability beyond what you would face at common law
• Damage to property in your care, custody, or control (covered separately)
• Bodily injury covered by ACC (personal injury accident claims)
• Intentional or criminal acts
• Professional errors and omissions (covered by professional indemnity)
• Pollution (may be available as an extension for higher-risk businesses)

Understanding what is excluded is as important as understanding what is covered. A broker can review exclusions and identify whether extensions are available and appropriate for your business.

Public Liability for Specific Business Types

Retail and Hospitality

Retail and hospitality businesses typically need $2–5 million cover. Liquor-licensed venues should confirm host liquor liability is included. Food businesses need product liability as part of their public liability cover.

Construction and Trades

Construction and trades businesses typically need $2–10 million. Government and large commercial contracts often require $10–20 million. Subcontractors should carry their own cover — do not assume a principal contractor's policy protects your work.

Professional Services

Professional services firms meeting clients in person need public liability alongside their professional indemnity. $2–5 million is typical. Some clients require higher limits as a contract condition.

Technology and IT Businesses

Technology companies visiting client sites carry public liability exposure. $2 million is a standard minimum for most tech clients.

Manufacturing

Manufacturers need public liability with product liability included. Limits typically start at $5 million and can reach $20 million or more for exporters and high-risk product categories.

How Premiums Are Calculated

Public liability premiums are influenced by:

• Business type and activities: Higher-risk operations attract higher premiums
• Revenue: A proxy for the scale of your operations and exposure
• Number of employees: More staff means more potential for incidents
• Claims history: Prior claims are a key premium driver
• Limit of indemnity: Higher limits attract higher premiums
• Policy excess: A higher excess reduces the premium

Most small businesses can expect annual premiums of $500–$3,000 for a standalone public liability policy. Combined packages including statutory and employers liability are often more cost-effective.

Getting the Right Cover

Public liability policies are not one-size-fits-all. The right policy depends on your industry, the size of your premises, the nature of your client interactions, and your contractual obligations. A licensed insurance broker can review your specific risk profile and arrange cover from New Zealand's leading commercial insurers — comparing price, terms, and insurer quality to find the best fit for your business.

See also: professional indemnity insurance, statutory liability insurance, employers liability insurance, and commercial property insurance.