First Aid Requirements for Small Businesses in Australia: A 2026 Guide.

A green box on the wall isn't first aid. It's a green box.

This is the part of WHS most small business owners get wrong — and it's not because they're cutting corners. It's because they were never told what "first aid" actually means under the law. They bought a kit, hung it on the wall, ticked the box in their head, and moved on.

Then a worker has a real injury — a deep cut on a job site, a chemical splash in the eyes, a slip with a serious head knock — and suddenly it's clear the business never had a first aid plan. They had a box.

Here's what Australian WHS law actually requires of you, in plain English. And what to do if your current setup doesn't measure up.

The legal duty: it's broader than you think

Under the model WHS Regulations, every PCBU - that's any person conducting a business or undertaking, from sole traders right up to large companies - must ensure that workers have access to first aid equipment, facilities, and trained first aiders.

If you're in Victoria, you're under the OHS Act 2004 rather than the harmonised WHS framework. The equivalent duty falls on the employer, self-employed person, or person with management or control of the workplace. The substance is the same - appropriate first aid for the risks at your workplace - the legal label is just different.

The duty isn't "have a kit." The duty is to provide first aid that's appropriate to the workplace. Whether that's a small office or a 20-person construction site, the question is the same: if a worker is injured here, can they get effective first aid quickly?

A regulator won't ask whether you bought a kit. They'll ask:

• Did you assess the hazards in your workplace?

• Did you decide how many first aiders, what kits, and what facilities you needed based on those hazards?

• Are your first aiders actually trained and current?

• Are kits stocked, accessible, and signposted?

• Have you got it written down somewhere, so you can prove you thought about it?

If the answer to any of those is "no" or "I'm not sure," you've got a gap.

The Code of Practice - what regulators expect

The model Code of Practice - First Aid in the Workplace, published by Safe Work Australia, sets out what regulators consider reasonable. Codes of practice aren't legislation, but courts treat them as evidence of what's "reasonably practicable" - the legal test for meeting your WHS duty. If you can show you followed the Code, you've got a strong defence. If you can't, you're starting on the back foot.

Here's what the Code says, in plain terms.

How many first aiders you need

These are guidance ratios, not strict legal minimums - but they're what regulators expect unless you can justify something different:

• Low-risk workplaces (offices, retail, light commercial): at least one trained first aider per 50 workers.

• High-risk workplaces (construction, manufacturing, transport, agriculture, warehousing): at least one per 25 workers.

• Remote or isolated high-risk work: more than that- generally one per 10 workers, plus contingency for the time it would take emergency services to arrive.

Coverage matters more than ratio. If you've got one first aider but they only work Mondays, you're not actually covered Tuesday through Friday. The Code expects first aid to be available across all shifts and all work locations.

What kit you need

The Code doesn't require one specific kit - it requires kits that match the hazards in your workplace.

A standard portable kit is fine for a low-risk office. A construction site needs trauma supplies, splints, and eye-irrigation. A commercial kitchen needs burn dressings. A landscaping crew working away from base needs a portable kit in every vehicle.

If you've got one kit on the wall and workers across three sites, that's not adequate. If your kit hasn't been opened in two years, the contents have probably expired.

First aid rooms

A dedicated first aid room is recommended for low-risk workplaces with 200 or more workers, or high-risk workplaces with 100 or more. Most small businesses won't need one - but if you're growing, this is a threshold worth knowing.

Training currency

First aid training has a shelf life. Under nationally recognised competencies:

• CPR is refreshed every 12 months.

• Provide First Aid is renewed every three years.

If your first aider got their certificate in 2022 and hasn't refreshed CPR since, they're not current. And if anything happens, that lack of currency will be one of the first things the regulator notices.

"But we're a small business - does this really apply to us?"

Yes.

Australian WHS law applies to every PCBU. There's no small-business exemption from the duty to provide first aid. The size of your operation changes what's reasonable to provide — a sole trader doesn't need a first aid room — but it doesn't change whether the duty exists.

If anything, small businesses face this risk more acutely, not less. A larger business has WHS staff, induction programs, and standing first aid arrangements. A small business often has none of that, but exactly the same legal duty. The gap between obligation and reality is where regulators find their easy prosecutions.

The penalty if you get it wrong

Failing to comply with your WHS duty is a Category 3 offence at minimum. The regulator doesn't have to prove anyone was actually exposed to risk — only that you failed to meet the duty.

Penalties for officers and PCBUs run into six figures across most jurisdictions. If a worker is exposed to risk of serious injury, that's a Category 2 offence and the figures climb significantly. Reckless conduct - Category 1 - can result in millions of dollars in fines, plus jail time for individuals.

But here's the part most owners miss: the penalty isn't really the worst-case scenario. The worst-case scenario is that a worker doesn't get the help they need in the first few minutes after a serious injury. Penalties come and go. Outcomes for workers don't.

Three things you actually need to do

If you're not sure your first aid setup would survive a regulator's questions - or worse, an actual incident - here's where to start.

1. Run a first aid needs assessment

Walk through your workplace. List the hazards. Count the workers. Note the shifts, the sites, the remote work. That tells you what kits you need, where they go, how many first aiders, and whether you need anything specialised (eye-wash, burn dressings, defibrillator).

Write the assessment down. That document is your evidence that you thought about first aid systematically - not that you guessed.

2. Audit your first aiders

Get the certificates out. Check the dates. CPR every 12 months, full first aid every three years. If anyone's lapsed, book the refresher. If you don't have enough first aiders to meet the Code's ratios across your shifts, identify who needs to be trained and book them in.

3. Open and audit every kit

Every kit. Every site. Every vehicle.

Throw out anything expired. Replace what's missing. Match the contents to the actual hazards in that location - not what the kit came with five years ago. Confirm the kits are signposted and accessible during all working hours.

Then put a date in the diary to do it again in six months. Kits don't restock themselves.

How this fits into your WHS Management System

Doing the assessment, training first aiders, and stocking the kits is the practical part. The legal part is being able to prove it.

That's where a documented first aid procedure earns its keep. A WHS Manual / WHS Management System gives you the procedure (so the steps don't live in your head), the forms (so the records are kept the same way every time), and the review schedule (so the system stays current). When a regulator or insurer asks for evidence, you've got it in one place.

If your current setup is a kit and a hopeful look around the room, this is the gap to close.

The free Toolbox Talk

We've put together a free First Aid Toolbox Talk you can run with your workers this week. It's a short, practical session - 10 minutes max that walks through what's in your kit, who the first aiders are, and what to do in an emergency.

It's the easiest first step toward closing the gap.

Download the free First Aid Toolbox Talk

Get the full system

If you want a complete First Aid procedure — needs assessment templates, kit checklists, training records, review forms, and signage guidance — built into a full WHS Manual / WHS Management System aligned to Australian regulations, that's exactly what we make.

Everything OHS has been making WHS documentation for Australian small and medium businesses since 2008. Over 12,000 businesses trust us, with 59 five-star Google reviews. No subscriptions. No platform to learn. Expert-made, industry-specific documents, ready to use today.