Public liability insurance for Australian tradies: $5m, $10m or $20m?

Every American page about this subject is written about a policy Australians do not buy. The cover is the same animal; the name is not. Ask an Australian broker for general liability and you will get a pause and then a correction, because here the product is public liability insurance, and the questions that hang off it — how much cover, who decides, what it really costs — have Australian answers that no amount of currency-swapping produces.

This page is the operator’s version of those answers, assembled on 24 August 2026. Where the number belongs to a state revenue office we quote the state. Where it belongs to a broker’s own book we name the broker and repeat their caveat. Where we could not reach a source, the number is not here at all.

Nobody is making you buy it. Everybody is making you buy it.

Start with what the law actually says, because most trades pages get this backwards in both directions. The Australian Government’s business.gov.au lists the insurances you may need by law, and there are three common ones: public liability, “which some states and territories need for certain occupations”; workers compensation, “if you have employees”; and third party personal injury insurance, “if your business uses motor vehicles”. Read that ordering carefully. Public liability is the conditional one. The other two are the ones that reliably catch a growing crew.

So the honest headline for a solo lawn mowing or pest control operator is that no general Australian law compels you to hold public liability cover — though for pest control specifically, check the licence your state actually requires first, since several states fold an insurance floor into the technician licence itself rather than leaving it to the contract. BizCover says the same thing from the selling side of the counter: while it is not a legal requirement in Australia for most businesses, it “may be a contractual requirement to have before you are allowed ‘on site’”.

That is the whole mechanism. The law is quiet and the contract is loud. A strata committee, a shopping centre, a builder, a council, a commercial landlord — each of them writes a minimum limit into the paperwork, and the certificate is what gets you through the gate. Which means the practical question is never “do I need it” but “what number does this particular client’s contract say”, and that number is set by somebody who has never met you.

business.gov.au’s own definition of what the policy does is worth keeping in front of you while you read the rest of this: it “covers you if someone dies, gets injured or has their property damaged because of your negligence”. Third party. Because of you. It is not cover for your own gear — a stolen mower or a written-off blower is a different policy — and it is not cover for the job you did badly, which is professional indemnity territory.

The tier ladder, resolved the right way round

Australian public liability is sold in three limits, and every page you will read presents them as a menu without saying who chooses. The choosing is the useful part.

The ceiling set by regulation is lower than most operators assume. Trade Risk, a broker that specialises in Australian trades, states flatly that of all the different trade licences in Australia — electrical, plumbing and the rest — it has never seen one with a minimum requirement higher than $5 million. If a licence condition is what is pushing you, $5 million is where it stops.

Everything above that is commercial. From the same broker: some builders require that their subcontractors hold at least $10 million, and if you are working in shopping centres or other public areas, your contract may stipulate $20 million. BizCover offers the same three limits and notes that cover levels vary by occupation.

The split is the interesting number. If roughly a quarter of tradies buying through one broker’s site are on $20 million, that is not a quarter of tradies being careful — that is a quarter of tradies who have signed something. The tier tells you what work someone does.

Two practical consequences. First, if you are chasing commercial or retail work for the first time, the limit is a cost of entry you should price before you tender, not after you win. Second, upgrading mid-term is normal and usually cheap relative to the job that triggered it, so do not let a $5 million policy become the reason you decline a centre contract.

The line on the invoice that is not the premium

Here is where an Australian page has to stop borrowing from American ones entirely, because the tax furniture is different and it is not small.

Two things sit on top of a public liability premium in Australia. The first is GST: a tax of 10% on most goods, services and other items sold or consumed here. The second is state insurance duty, and it is charged by the state, at the state’s rate, on the premium — including, in several states, on the GST. Revenue NSW says duty is calculated on the premium paid and that a premium “may include a fire service levy, an emergency service levy and GST”.

The rates diverge, and one of them is moving.

The illustration takes $600 as the base premium because that is the figure Trade Risk itself uses, describing it as “pretty typical for a tradie’s public liability”. Add GST to get $660, then apply the state’s rate. Queensland and Tasmania state outright that duty is charged on the GST-inclusive premium; for New South Wales and Victoria we are assuming the same stacking rather than asserting it, so read the three lines off your own renewal notice, which will show them separately. One more step is ours rather than the regulator’s: Revenue NSW never writes the words public liability, it defines Type A as whatever is not Type B or Type C, and public liability appears in neither list — so the 9% is reached by elimination. Victoria is the opposite case, its revenue office naming public and product liability in the class outright. Tasmania and Victoria are about twenty dollars apart on an identical policy, and the gap widens every year, because Victoria’s business insurance duty is being abolished by annual one-point steps: 9% from 1 July 2024, 8% from 1 July 2025, 7% from 1 July 2026, and onward to zero on or after 1 July 2033. A Victorian operator’s renewal quote should be falling on the duty line alone, and if it is not, that is a question for the broker.

One more piece of arithmetic that changes the answer. If you are registered for GST — mandatory once turnover hits $75,000 — the GST component is a credit, not a cost, and business.gov.au notes that tax invoices are precisely the documents that let a customer claim full GST credits. The duty is not recoverable. So the real annual cost of that $600 policy is closer to $659.40 in New South Wales and Queensland, $666.00 in Tasmania and $646.20 in Victoria. Confirm the treatment with your accountant before you rely on it; insurance has its own GST wrinkles.

We did not reach a published rate for Western Australia, South Australia, the Northern Territory or the ACT this session, so those states are absent from the table rather than estimated.

The market is moving the other way from the one you are reading about

One more thing worth knowing before you accept a renewal quietly: the direction of travel here is the opposite of the direction in most of the American commentary an Australian operator ends up reading. Marsh’s Global Insurance Market Index for the second quarter of 2026 reports global insurance rates down 6%, an eighth consecutive quarter of reductions — and the Pacific region down 13%, the steepest fall of any region it tracks. The exception is the United States, where casualty rates rose 7% on claims severity and litigation pressures, against a global casualty rise of 2%.

Two honest qualifications. Marsh measures renewal rates across a large brokered commercial book, not solo-tradie policies, so nobody should expect 13% to appear on their own notice. And a falling market is a reason to test the market, not a reason to assume your broker has already passed it on. But it does mean that a US page telling you liability premiums are climbing relentlessly is describing a market you are not in.

What the contract actually asks you to produce

The limit is only half of an insurance clause. The other half is evidence, and the Australian wording is its own small trap: what a principal usually wants is a certificate of currency — the insurer’s confirmation that the policy is live right now, with the limit and the period on its face. It plays the same role a certificate of insurance plays on a US job, and the same failure mode applies: it expires, and it expires quietly, usually the week you are mid-job on the account that demanded it.

Three things worth reading in the clause before you sign, all of which change what you have to buy rather than merely what you have to prove:

• The limit, and whether it is per occurrence or in the aggregate. Two very different promises can both be written as “$20 million”.
• Whether the principal must be noted on the policy. Being named as an interested party is an insurer request, not a paperwork step you can do yourself the night before.
• How long the cover has to survive the job. Some contracts require the policy to stay on foot after practical completion, which is a renewal obligation, not a purchase.

Our service agreement clauses guide covers the general anatomy of these terms from the operator’s side. It is written against US contract norms, so read the structure and ignore the statutory references — the insurance clause is the part that travels.

Pricing the premium back into your quotes

A premium you cannot recover is a margin leak, and this is where the AU/US gap closes: the maths is the same everywhere, only the labels change.

Public liability is a fixed annual cost you carry whether the phone rings or not, which makes it overhead rather than labour burden — it does not attach to a worker’s hours the way workers compensation does. The overhead recovery rate calculator turns the annual figure into a per-hour loading you can add to a rate, and the labour burden rate calculator handles the workers compensation side once you have staff. Both are US-built and currency-agnostic; enter your figures in dollars and the arithmetic does not care which dollars they are.

Two Australian habits to keep while you do it. Consumers here expect prices quoted GST-inclusive, so the number on the quote is the number they pay — build the loading in before you display it, not after. And the document itself is a quote, not an estimate: the word “estimate” barely appears in Australian trade conversation, and using it invites the wrong conversation about whether the price is fixed. Our quote versus estimate guide sets out the distinction, again from a US vantage, but the underlying commitment question is the same one your customer is asking.

If you price mowing rounds, the AU/NZ calculator is where you load the premium into your hourly rate in dollars and GST that are already yours, rather than the US-units lawn care pricing calculator. Rubbish removal operators fold the same loading into a per-cubic-metre rate instead — see rubbish removal pricing, GST included. The one seasonal warning worth stating outright: our insurance renewal guide is written for a northern-hemisphere Q4, when the work slows and there is time to shop the policy. In Australia, October to December is the top of the season. Your renewal review belongs in the winter trough — roughly June to August — not in the busiest quarter of your year.

New Zealand is a different risk, not a different currency

The temptation is to treat New Zealand as Australia with a different exchange rate. The liability logic will not survive that.

ACC states that its no-fault scheme covers everyone in New Zealand if they are injured in an accident. The personal-injury claim that drives a great deal of Australian public liability thinking therefore does not run the same way there, and New Zealand liability conversations lean much harder on damage to other people’s property — the water blaster through the weatherboard, the mower stone through the neighbour’s window. We could not reach New Zealand’s statutory provisions on personal-injury proceedings this session, so we are describing ACC’s own framing rather than the legal mechanism; treat the detail as a question for a New Zealand broker.

The tax furniture shifts too. Inland Revenue charges GST at 15%, not 10%, and frames its guidance around taxable supply information rather than the Australian tax-invoice wording. And the vocabulary moves with it: a New Zealand residential property is a section, so the job is section mowing and the quote is per section, which matters if you are localising a price list rather than just a policy.

We found no New Zealand public liability premium figures we could attribute to a source this session, so there are none on this page.

What this page does not tell you

Three deliberate gaps, stated rather than filled.

We do not name a state trade licence that mandates public liability. Several regulator sites were unreachable from here on 24 August 2026, and a licensing claim is exactly the kind of claim that should not rest on a broker’s summary — so the licence point appears only as what Trade Risk and BizCover report, attributed to them. Check your own licence conditions with your regulator.

We do not publish a premium benchmark. The two figures on this page belong to two brokers’ own customer books, with their own stated methodology and their own caveats, and neither is a market rate. Get three quotes.

And we do not tell you what limit to buy. That is written in a contract we have not read. What this page can do is stop the number surprising you: the ladder is $5 million, $10 million, $20 million; the law stops at the first rung; the other two are commercial decisions somebody else has already made about you; and whichever one you land on, the state will take up to another ten per cent of it on the way past.

Our other Australian compliance work sits in the same lane — the pool barrier rules by state page is the same exercise applied to a standard that fractured across eight jurisdictions, and the AU/NZ pool season opening hub inverts the calendar for operators reading northern-hemisphere seasonal advice. If you want the American comparison for contrast, the lawn care business insurance guide shows what the same conversation looks like where the policy is called general liability and the licensing hooks are per state rather than per contract.