Work health and safety law applies to every business with workers, from a two-person office to a construction site, and the core duty is broad: as a “person conducting a business or undertaking” you must ensure, so far as is reasonably practicable, the health and safety of your workers and others affected by your work. That includes a dimension many SMEs have not caught up with, psychosocial hazards (stress, bullying, unreasonable workload), which are now squarely within WHS duties and backed by specific codes. The challenge for an SME is not understanding that WHS matters. It is right-sizing the response: doing enough to meet a genuine duty without over-engineering a system built for a large industrial employer. A serious incident can cost far more than prevention. Beyond human harm, workers compensation premium spikes, legal costs and downtime can run to tens of thousands of dollars for a modest SME and much more where permanent impairment is involved. This guide sets out a proportionate baseline. It is general information only, not safety or legal advice.
Published: July 2026
Under the harmonised WHS laws (in force across most of Australia), the business, as a person conducting a business or undertaking, owes a primary duty of care: to ensure, so far as is reasonably practicable, the health and safety of workers while they are at work, and that others (customers, visitors, the public) are not put at risk by the work. “So far as is reasonably practicable” is the key phrase. It does not demand the impossible or the disproportionate, but it does require the business to take the steps a reasonable business in its position would take, weighing the likelihood and severity of harm against what it would take to eliminate or minimise it.
Officers of the business (including directors, and in a small company often the owner) have a separate due diligence duty: to take reasonable steps to ensure the business complies, which means they cannot simply delegate safety and look away. And workers have their own duties to take reasonable care and follow reasonable instructions. The point for an SME owner is that the duty is real, personal at the officer level, and cannot be entirely outsourced, but it is also proportionate to the actual risk of the actual business.
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The mistake SMEs make in both directions is either ignoring WHS (assuming it is for big or dangerous businesses) or over-engineering it (buying a heavy safety-management system built for a large industrial site). The right approach is proportionate, and the proportion is set by the real hazards of the specific business.
A low-risk office business owes the same primary duty but faces different hazards: ergonomics, slips and trips, electrical safety of equipment, psychosocial factors like workload and bullying, and emergency procedures. A proportionate baseline is modest: sensible workstation setup, basic hazard identification, a simple incident process, reasonable emergency arrangements, and, increasingly importantly, attention to the psychosocial environment.
A site-based or physical business (trades, construction, warehousing, manufacturing) faces higher-consequence physical hazards: plant and equipment, working at heights, manual handling, vehicles, hazardous substances, and owes a correspondingly more substantial response: proper risk assessments, safe work method statements where required, plant and equipment safety, training and supervision, and the site-specific controls its work demands.
The baseline scales with the hazard, which is exactly what “reasonably practicable” means. An office business implementing a construction-grade safety system has wasted effort. A construction business running an office-grade one has a serious gap. Match the response to the real risk.
A 22-person professional services firm ignores chronic overload in one team. Over 18 months, two senior staff resign citing burnout. Replacement cost at roughly $35,000 each (recruitment, ramp-up, lost billable capacity) is about $70,000, before any workers compensation psychological injury claim. A proportionate workload review, role redesign and manager training might have cost $5,000 to $10,000 in time and support. Psychosocial WHS is not soft. It is risk management with a P&L.
A small trades business skips documented risk assessment for a routine working-at-heights task. A fall causes serious injury. Direct costs (excess, downtime, temporary labour, legal support) exceed $40,000 in year one, and the workers compensation premium trajectory worsens for years. The SWMS and training that were “too much paperwork” would have been cheaper than the incident.
The development SME employers most often have not absorbed is that psychosocial hazards are now explicitly part of WHS duties, supported by specific regulations and codes of practice. Psychosocial hazards are the aspects of work that can cause psychological harm: unreasonable workload and time pressure, bullying and harassment, exposure to traumatic content or aggression, poor support, role conflict, low control. The duty to manage risks “so far as is reasonably practicable” now clearly extends to these psychological hazards, not just physical ones.
For an SME, this means the WHS baseline is no longer complete if it only addresses trips, plant and first aid. It must also give reasonable attention to the psychosocial environment: identifying foreseeable psychosocial risks (a role with chronic overload, a known bullying issue, a customer-facing role exposed to aggression), and taking reasonable steps to manage them. This is both a legal development and, handled well, a genuine benefit, because the same factors that create psychosocial risk also drive turnover and lost productivity. See also the true cost of hiring an employee in Australia and the employee cost calculator when costing turnover driven by poor psychosocial conditions.
A proportionate WHS baseline for a typical SME, scaled up for higher-hazard businesses, looks like:
WHS is one of those obligations where the goal is genuine, proportionate compliance: enough to meet a real duty and, more importantly, to actually keep people safe, without drowning a small business in paperwork built for a large one. The connection to the finance and HR function is closer than it looks: workers compensation premiums, incident costs, the productivity and turnover effects of the psychosocial environment, and the record-keeping all sit alongside the people-management the business already does. Getting the baseline right, sized to the real hazards, covering the psychosocial dimension, documented proportionately, and backed by the required workers compensation cover, is part of running the business properly. Because WHS is a serious legal duty with personal officer obligations and significant penalties, and because the right level of response depends on the specific business and its jurisdiction, specific WHS obligations should be confirmed with a qualified WHS professional or adviser.
Do WHS laws apply to small businesses?
Yes. The primary duty of care applies to every “person conducting a business or undertaking”, from a small office to a large site. The duty is to ensure, so far as is reasonably practicable, the health and safety of workers and others affected by the work. It is proportionate to the real risk, but it always applies.
What does “so far as is reasonably practicable” mean?
That the business must take the steps a reasonable business in its position would take, weighing the likelihood and severity of harm against what it would take to eliminate or minimise it. It does not demand the impossible or the disproportionate, but it does require genuine, proportionate action.
Are directors personally responsible for WHS?
Officers, including directors and often the owner in a small company, have a due diligence duty to take reasonable steps to ensure the business complies. They cannot simply delegate safety and look away. This is a personal obligation distinct from the business’s primary duty.
What are psychosocial hazards?
Aspects of work that can cause psychological harm: unreasonable workload and time pressure, bullying and harassment, exposure to aggression or trauma, poor support, role conflict and low control. They are now explicitly part of WHS duties, supported by specific regulations and codes, so managing them is part of the duty.
How much WHS does a small office business need?
A proportionate baseline: sensible ergonomics, basic hazard identification, a simple incident process, reasonable emergency arrangements, worker consultation, and attention to the psychosocial environment. An office does not need a construction-grade safety system, but it does owe the same primary duty scaled to its hazards.
How is a site-based business different?
Higher-consequence physical hazards (plant, heights, manual handling, vehicles, hazardous substances) mean a more substantial response: proper risk assessments, safe work method statements where required, plant and equipment safety, and training and supervision. The baseline scales up with the hazard.
What is the minimum an SME should have in place?
Understanding of the duty and the business’s real hazards, reasonable controls for each significant hazard, basic documentation (safety policy, incident reporting, emergency procedures, and risk assessments for higher-risk work), worker consultation, attention to psychosocial risks, officer due diligence, and the required workers compensation cover.
Does WHS apply to contractors and visitors?
The primary duty extends to ensuring others are not put at risk by the work, and workers for WHS purposes can include more than traditional employees depending on the arrangement. Contractor and multi-PCBU settings need careful attention.
How does WHS connect to workers compensation?
They are related but separate. WHS is the duty to keep people safe. Workers compensation is the insurance and claims system when injury or illness occurs. Strong WHS reduces claims risk. Required workers compensation cover remains a legal obligation for employers.
Is this safety advice?
No. This is general information. WHS is a serious legal duty with personal officer obligations, significant penalties, and requirements that vary by jurisdiction and business type. Specific WHS obligations should be confirmed with a qualified WHS professional or adviser.
Scale Suite is a Sydney-based provider of outsourced finance teams and fractional CFO services for Australian SMEs. We deliver weekly bookkeeping, payroll, BAS/IAS lodgement, cashflow reporting, management accounts, and strategic fractional CFO oversight, all as a fully embedded team that works inside your business.
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We review and check this guide periodically. At the time of writing (July 2026), all information was current. Scale Suite is a registered BAS Agent, not a licensed tax advisor or financial advisor. This content is general information only and does not constitute professional tax, financial, or legal advice. Some details may change over time.
Scale Suite is a Sydney-based provider of outsourced finance and HR services for Australian SMEs. We deliver bookkeeping, financial reporting, payroll processing, fractional CFO support, recruitment, employee onboarding, people and culture support, and fractional HR oversight, all as a fully embedded team that works inside your business.
Employment Hero Gold Partner, CA-qualified, and Xero Certified, we replace fragmented finance and HR processes with one responsive, senior-level function at a fraction of the cost of full-time hires. We serve growing businesses across Sydney, Melbourne, Brisbane, and Perth, with packages starting from $1,500 per month and no lock-in contracts.
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