Guide · Updated July 2026

Insurance requirements for Australian government tenders

What cover you need, what limits to expect, and the certificate mistakes that eliminate otherwise strong bids.

Insurance is the most common reason a technically capable business loses a government tender on compliance rather than merit. The requirements are not complicated, but they are absolute — a bid with insufficient cover or a lapsed certificate is non-conforming and is not scored.

This guide covers the types of cover Australian government buyers require, typical limits, and the specific mistakes that cost businesses contracts.

Public liability insurance

The universal requirement. Public liability covers third party injury and property damage arising from your work, and every Australian government tender will specify a minimum limit.

ContextTypical minimum limit
Local council, low-risk services$10m
Council construction and works contracts$10m–$20m
State agency services and maintenance$20m
Health, education and construction projects$20m
Major infrastructure, rail corridor, correctional facilities$20m–$50m+

These are indicative and the tender document always governs. The practical point is that $20m is the common state agency benchmark, so a business carrying $10m will be excluded from a large share of state work until it increases cover. Brokers can usually arrange an increase within days, but not within hours — which is why insurance must be checked at the start of a tender period, not the end.

Professional indemnity insurance

Required where you provide advice, design or professional services rather than physical work. It covers loss arising from negligent professional advice or design error.

Who needs it: consultants, engineers, architects, ICT and software suppliers, project managers, trainers, auditors, and increasingly any contractor providing design-and-construct services or compliance certification.

Typical limits run $1m to $5m for smaller consulting engagements, $5m to $10m for substantial professional services, and higher for engineering design on major projects or ICT work on critical systems. This is the cover most commonly overlooked, because trade businesses assume it does not apply to them — then find it required because their scope includes design or certification. Our ACT ICT tenders guide covers the professional indemnity and security expectations in the Commonwealth technology market.

Workers compensation

Mandatory wherever you have employees, and administered differently in each jurisdiction. You must be registered in the state where the work is performed, which catches businesses operating across borders.

JurisdictionScheme
New South Walesicare NSW
VictoriaWorkSafe Victoria
QueenslandWorkCover Queensland
Western AustraliaApproved insurers under WorkCover WA
South AustraliaReturnToWorkSA
Tasmania, NT, ACTLicensed insurers under each territory or state scheme

Buyers require a current certificate of currency. If you engage subcontractors, expect to be asked to verify their cover as well, and note that in some jurisdictions deemed-worker provisions can make you liable for subcontractors you treated as independent.

Contract works insurance

Required on construction contracts, covering the works themselves during construction against damage, fire and weather. The sum insured must match the contract value, and the tender may specify whether you or the principal arranges it.

On larger projects the principal sometimes takes out a principal-arranged policy covering all contractors, in which case you must not double-insure — read the contract carefully, because assuming the wrong party is responsible leaves the works uninsured. Our NSW construction tenders guide covers the typical package on state building work.

Motor vehicle and plant insurance

Comprehensive motor vehicle cover for company vehicles, and separate plant and equipment cover for mobile plant, which sits outside public liability. Civil and earthmoving contractors should expect plant cover to be specified, as covered in our WA civil tenders guide.

Other cover you may be asked for

The five mistakes that cost contracts

  1. Insufficient limit. The tender requires $20m and you carry $10m. Non-conforming, not scored. Check on day one.
  2. Expired certificate. Your certificate of currency lapsed during the tender period, or expires before the contract starts. Buyers check the dates.
  3. Wrong insured entity. The certificate names a related company, a trustee, or a former trading name rather than the entity submitting the bid. This is common in trust structures and is treated as non-compliance.
  4. Missing professional indemnity. Assumed inapplicable, then required because the scope includes design, certification or advice.
  5. Wrong jurisdiction for workers comp. Registered in one state, performing work in another. Each state's scheme is separate.

Practical process

Build insurance into your bid process rather than treating it as paperwork at the end:

Note that carrying higher limits is not automatically better — premiums are a real cost and over-insuring for the work you actually pursue erodes margin. Match cover to the contracts you are targeting, which you can gauge by reviewing live opportunities on our tender feeds or sector pages like cleaning tenders.

Insurance failures are catalogued alongside the other common eliminations in why tenders get rejected, and the certificate list appears in the tender response checklist.

Frequently asked questions

How much public liability insurance do I need for government tenders?

$20m covers the large majority of Australian state agency work, while $10m is often sufficient for council and lower-risk contracts. Major infrastructure, rail and correctional work can require more. The tender document always governs, so check the specified limit before anything else.

Do I need professional indemnity if I am a trade business?

Usually not for pure construct-only work, but yes if your scope includes design, engineering, compliance certification or advice. Design-and-construct contracts commonly require it. Read the scope carefully, because assuming it does not apply is a frequent and costly error.

Can I get insurance limits increased during a tender period?

Often yes, within days, but not within hours. Brokers need time to arrange additional cover and issue an updated certificate. This is precisely why insurance requirements should be verified in the first hours of a tender period rather than during final assembly.

Does my certificate of currency need to cover the whole contract term?

It must be current at submission, and buyers will require you to maintain cover throughout the contract. Policies renew annually, so you will typically provide updated certificates each year. A certificate expiring shortly after submission may prompt a request for confirmation of renewal.

Am I responsible for my subcontractors' insurance?

Generally yes, in the sense that the head contract makes you responsible for ensuring subcontractors carry appropriate cover, and buyers may ask you to verify it. Some jurisdictions also have deemed-worker provisions that can make you liable for workers compensation for subcontractors you regarded as independent.

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