Additional Insured Endorsements: When Clients Require Them

·11 min read

Additional Insured Endorsements: When Clients Require Them

If you run a business that contracts with larger organisations, government agencies, or property owners, you’ve likely encountered a contract clause requiring you to name them as an “additional insured” on your public liability insurance policy. This request is not merely a bureaucratic formality—it fundamentally alters the legal relationship between your insurer, your client, and you. In Australia, the Insurance Contracts Act 1984 (Cth) governs how such endorsements operate, and getting them wrong can leave you exposed to liability that should have been covered. This article explains what additional insured endorsements are, when clients legitimately require them, and how to navigate the legal and practical pitfalls they present.

What Is an Additional Insured Endorsement?

An additional insured endorsement extends coverage under your public liability policy to a third party—typically your client—for liability arising out of your business activities. It does not make that client a full policyholder; instead, it grants them specific protection within the scope of your policy’s terms and conditions.

The Insurance Contracts Act 1984 (Cth) does not explicitly define additional insured endorsements, but section 48 provides that a third party can claim directly under an insurance contract if they are specified as a person to whom the cover extends. This is the statutory foundation for such endorsements. State civil liability acts, such as the Civil Liability Act 2002 (NSW) or the Wrongful Life Act 2003 (Vic), further shape how liability is apportioned when multiple parties are insured under the same policy.

In practice, an additional insured endorsement means that if your client is sued for something related to your work—say, a subcontractor’s negligence on a construction site—they can rely on your policy for defence costs and indemnity, rather than their own. However, this protection is not unlimited. The endorsement typically excludes liability arising solely from the client’s own negligence, unless that negligence is directly connected to your activities.

Common Scenarios Where Clients Require It

Clients typically require additional insured endorsements in high-risk industries or where they have significant exposure to third-party claims. Common examples include:

When Is It Legitimate for Clients to Require an Additional Insured Endorsement?

Not every request for an additional insured endorsement is reasonable or even enforceable. As a business owner, you need to assess whether the request aligns with standard industry practice and contractual risk allocation.

Industry Standards and Contractual Necessity

In many sectors, additional insured endorsements are standard. For instance, the Work Health and Safety Act 2011 (Cth) and its state counterparts impose a duty on all parties in a supply chain to ensure safety. A head contractor may legitimately require subcontractors to name them as additional insureds to cover liability arising from the subcontractor’s work, because the head contractor could be vicariously liable for the subcontractor’s negligence.

Similarly, property owners often require tenants to name them as additional insureds because the owner may be sued under occupiers’ liability laws—such as the Civil Liability Act 2002 (NSW) section 5B—for injuries occurring on the premises, even if the tenant caused the hazard.

Red Flags: Unreasonable or Overbroad Requests

Be cautious if a client demands to be named as an additional insured for all activities, including those unrelated to your work. For example, a client asking to be added to your policy for “any claim arising from the premises” is likely overreaching. In a Queensland tribunal case, a subcontractor was found not liable for a claim where the head contractor’s own negligence was the sole cause, and the endorsement was deemed void for lack of insurable interest. If the client has no insurable interest in your operations, the endorsement may be unenforceable under the Insurance Contracts Act 1984 (Cth) section 17, which requires utmost good faith.

How Additional Insured Endorsements Affect Your Policy

Adding another party to your policy is not a simple administrative tick. It changes your premium, your coverage limits, and your relationship with your insurer.

Premium and Coverage Implications

Most insurers charge an additional premium for each named additional insured. For a small business, this can range from $400 to $2,000 per year, depending on the risk profile. Some policies cap the number of additional insureds or require separate endorsements for each client. If you have multiple clients requesting this, the cumulative cost can be significant.

Coverage limits are another critical factor. The additional insured typically shares your policy’s aggregate limit, meaning that a claim made by or against the additional insured reduces the total cover available for your own claims. This can leave you underinsured if you have multiple claims in a single policy period.

Notification and Claims Handling

Under the Insurance Contracts Act 1984 (Cth) section 54, an insurer cannot refuse a claim based on a breach of duty that did not cause the loss. However, if you fail to notify your insurer of an additional insured endorsement, the insurer may argue that the risk has changed materially, potentially voiding the policy. Always disclose additional insureds at inception or when a contract is signed.

In claims handling, the additional insured has the right to be notified of any claim that may affect them. This can complicate settlement negotiations, as the client may have different interests—for example, they may want to settle quickly to protect their reputation, while you may prefer to fight the claim.

Even with proper disclosure, additional insured endorsements can create legal traps. Understanding these pitfalls can save you from costly disputes.

The “No Greater Rights” Principle

A standard additional insured endorsement provides no greater rights than those available to you as the named insured. This means that if your policy excludes certain risks—such as liability arising from professional advice or pollution—the additional insured cannot claim under it for those risks. In a 2024 AFCA determination, a subcontractor’s insurer successfully denied cover to a head contractor because the claim arose from the head contractor’s own design work, which was excluded under the subcontractor’s policy.

Waiver of Subrogation

Many additional insured endorsements include a waiver of subrogation, meaning your insurer cannot sue the additional insured to recover amounts paid on a claim. This is standard in construction contracts, where the head contractor wants to avoid being sued by the subcontractor’s insurer after a settlement. However, you should confirm whether your policy includes this waiver, as it can affect your insurer’s ability to recover costs from negligent third parties.

State-by-State Differences

Australian states have varying laws on liability apportionment. For example:

If you operate across multiple states, ensure your policy covers all relevant jurisdictions. Some insurers offer cross-jurisdiction endorsements, but these typically cost an extra $200–$600 per year.

Practical Steps for Business Owners

Navigating additional insured endorsements requires proactive management. Here are actionable steps to protect your business.

1. Review Contracts Before Signing

Never agree to an additional insured requirement without reading the full contract clause. Look for:

If the clause is vague, ask for clarification. A client who refuses to define the scope may be trying to shift all liability onto you.

2. Notify Your Insurer in Writing

When you agree to name a client as an additional insured, send a written notification to your insurer, including:

Do not rely on verbal agreements. Insurers may require a formal endorsement form, and failure to comply can void cover.

3. Compare Policies from Different Insurers

Not all insurers handle additional insured endorsements the same way. Some charge a flat fee per endorsement; others include a certain number in the base premium. Platforms like BizCover allow you to compare policies side by side, but you should still read the product disclosure statement (PDS) carefully. Look for clauses that limit the number of additional insureds or exclude certain types of clients.

4. Consider a Separate Policy for High-Risk Clients

If a client demands extensive coverage—such as being named as an additional insured on a primary, non-contributory basis with a waiver of subrogation—you may be better off purchasing a separate policy for that contract. This keeps your main policy intact and avoids sharing limits. The cost can be $1,000–$3,000 per year, but it may be worth it for large contracts.

5. Keep Records of All Endorsements

Maintain a log of all additional insured endorsements, including the date, client name, and policy number. This is crucial for claims handling. In the event of a dispute, you can demonstrate that the endorsement was properly issued and that the client was notified of any policy changes.

FAQ: Additional Insured Endorsements

What is the difference between an additional insured and a named insured?

A named insured is the primary policyholder who pays the premium and has full control over the policy. An additional insured is a third party added to the policy for specific coverage, typically without the right to cancel or modify the policy. The additional insured cannot claim for losses that arise solely from their own negligence.

Do I have to name every client as an additional insured?

No. You should only agree to name a client as an additional insured if it is required by contract and reasonable under industry practice. If a client demands it without a contractual basis, you can refuse. However, some clients may walk away if you do not comply, so weigh the business risk.

What happens if I forget to add a client as an additional insured?

If a claim arises and the client was not added, they may sue you for breach of contract. Your insurer may also deny cover if the omission was a material non-disclosure. To avoid this, set up a system to add additional insureds as soon as a contract is signed.

Can an additional insured make a claim directly against my insurer?

Yes, under section 48 of the Insurance Contracts Act 1984 (Cth), an additional insured can claim directly under your policy. However, they must prove that the claim falls within the scope of the endorsement and that they have an insurable interest in the subject matter.

How does an additional insured endorsement affect my premium?

Most insurers charge an additional premium for each named additional insured, typically $400–$2,000 per year for small businesses. Some policies include a certain number of endorsements in the base premium, so check your PDS.

What is a waiver of subrogation, and why do clients ask for it?

A waiver of subrogation prevents your insurer from suing the additional insured to recover amounts paid on a claim. Clients ask for this to avoid being sued by your insurer after a settlement. It is common in construction contracts but can increase your premium.

Are there state-specific laws I need to consider?

Yes. Each state has its own civil liability laws that affect how liability is apportioned. For example, New South Wales and Victoria have different rules on proportionate liability. If you operate in multiple states, ensure your policy covers all relevant jurisdictions.

Can I use platforms like BizCover to add additional insureds?

Yes, many online brokers allow you to add additional insureds during the application process or mid-policy. However, you must ensure the endorsement is properly documented. Always keep a copy of the endorsement form for your records.

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