WorkSafe NZ and Sole Traders: Understanding Your HSWA Obligations

The Health and Safety at Work Act 2015 (HSWA) fundamentally changed New Zealand's workplace safety landscape. For sole traders, it created specific obligations and real exposure to prosecution — even for unintentional breaches. This article explains what the law requires of you and how statutory liability insurance addresses the financial consequences.

HSWA Basics: How It Applies to Sole Traders

Under HSWA, a Person Conducting a Business or Undertaking (PCBU) has primary duties for health and safety. If you are self-employed and have any workers — employees, contractors, or even volunteers — you are a PCBU.

Even if you work entirely alone, you may be a PCBU in relation to: - Contractors or subcontractors you engage - Workers of other PCBUs who are at your worksite - Members of the public who might be affected by your work

The primary duty of a PCBU is to ensure, so far as is reasonably practicable, the health and safety of: - Workers who work for the business - Other workers whose work is influenced or directed by the business - Other people at risk from the business's work

"So far as is reasonably practicable" is the key qualifier — the law doesn't demand perfection, but it does demand genuine and proportionate effort.

What Reasonably Practicable Means in Practice

WorkSafe assesses "reasonably practicable" by weighing: - The likelihood of a hazard or risk occurring - The degree of harm that could result - What is known about the hazard and the risk - The availability and suitability of ways to eliminate or minimise the risk - The cost of eliminating or minimising the risk (but cost can't be the dominant reason for not acting)

For a tradie working at heights, this means: What are the real risks? What does industry guidance say? What are the costs of appropriate edge protection vs the risk of someone falling? If a fall occurs and you had not taken reasonably practicable steps, you may be in breach regardless of whether the specific incident was foreseeable.

The Three Categories of HSWA Offences

Category 3 offences: Failure to comply with a duty without exposing someone to risk of death or serious harm. Fine up to $50,000 for an individual.

Category 2 offences: Failure to comply with a duty that exposes someone to risk of death or serious harm. Fine up to $300,000 for an individual, or up to $1.5 million for a PCBU that's a company.

Category 1 offences (most serious): Reckless conduct that puts others at risk of death or serious harm. Fine up to $600,000 for an individual and/or up to 5 years imprisonment.

Note: Category 1 offences involve recklessness — something beyond mere negligence. Categories 2 and 3 can be triggered by conduct that was well-intentioned but fell short.

What Triggers a WorkSafe Investigation?

WorkSafe NZ initiates investigations following: - A workplace accident resulting in serious harm (fractures, burns, amputations, death) - A near-miss incident that is notifiable under the Act - A complaint from a worker or person affected by the work - A proactive WorkSafe site visit (less common for small sole traders)

For sole traders, the most common trigger is a workplace accident. If a subcontractor or client visitor is seriously injured at your worksite, expect a WorkSafe investigation regardless of whether you believe you did everything right.

The Cost of an Investigation

Even if WorkSafe finds no breach or decides not to prosecute, an investigation has costs: - Legal advice to prepare for WorkSafe interviews: $3,000–$15,000 - Preparation of documentation and responses: $2,000–$10,000 - Expert witnesses if technical issues are in dispute: $5,000–$25,000

If WorkSafe does prosecute: - Full legal defence: $30,000–$200,000 - Expert witnesses and evidence: $15,000–$60,000 - Any resulting fine: up to $600,000 for Category 1

Statutory liability insurance covers your legal defence costs and, where the breach is unintentional, any fines. The policy does not cover intentional or reckless conduct — but for a sole trader operating in good faith who suffers an unexpected incident, it provides essential protection.

Common HSWA Gaps for Sole Traders

Based on WorkSafe enforcement activity, the most common areas where sole traders fall short:

Working at heights: Inadequate edge protection, improper ladder use, failure to assess fall risk adequately.

Hazardous substances: Not having safety data sheets for hazardous products, inadequate storage, failure to provide PPE.

Electrical safety: Work near live services, inadequate isolation procedures.

Excavation and trenching: Failure to shore trenches, not locating underground services before digging.

Asbestos: Failure to identify potential asbestos before disturbing old building materials, inadequate management when asbestos is found.

Fatigue: Managing work hours, especially for sole traders who push long hours.

Practical HSWA Compliance Steps

You don't need a formal safety management system to comply with HSWA as a small sole trader, but you do need genuine effort:

1. Identify hazards relevant to your work before each job 2. Assess risks — how likely is harm, how serious would it be? 3. Control risks — eliminate where possible, otherwise minimise 4. Document what hazards you've identified and how you've addressed them (even a simple log) 5. Train yourself and any workers in the specific hazards of your work 6. Notify WorkSafe of notifiable events (serious injuries, near-misses involving plant or substance)

The WorkSafe website provides free guidance for small businesses and sole traders in a range of industries.

Getting Statutory Liability Insurance

Statutory liability is typically available as part of a Business Pack or bundled with public liability cover. Standalone statutory liability policies are also available.

When comparing policies, check: - Which statutes are covered (HSWA, Privacy Act, Fair Trading Act, Consumer Guarantees Act, Employment Relations Act) - Whether investigation costs are covered even without prosecution - The limit (typically $250,000–$1 million for sole traders) - Any exclusion for known non-compliances at inception

An adviser can compare options from NZ's main business insurers and recommend the appropriate limit based on the nature of your work.