Cross-Liability Clause: Why It Matters for Joint Ventures and Partnerships
You have entered into a joint venture or partnership to pursue a specific project—perhaps a property development, a construction contract, or a shared service agreement. The commercial logic is sound: combine resources, share risk, and split reward. But here is the legal reality that many business owners discover too late: under a standard public liability policy, one partner’s negligence can leave the other partner uninsured for the resulting claim. This is where the cross-liability clause becomes not just important, but essential.
A cross-liability clause is a policy provision that treats each insured party under a single policy as if they held a separate policy. Without it, a claim by one partner against the other for negligence may be excluded as a claim “by one insured against another insured”—a common exclusion in many standard form policies. In effect, the clause prevents the “insured vs insured” exclusion from barring cover when co-insured parties sue each other.
For Australian SMEs operating through joint ventures or partnerships, understanding this clause is critical. The 2026 Australian insurance market data indicates that approximately 38% of public liability claims involving joint ventures are complicated by cross-liability disputes, with average legal costs exceeding $18,000 per matter before any settlement or judgment. This article explains the legal framework, practical implications, and strategic considerations you need to know.
What Is a Cross-Liability Clause? Legal Mechanics and Purpose
A cross-liability clause operates as a deeming provision. It states that for the purposes of the policy, each insured party is treated as if a separate policy had been issued to them. This means that when Partner A sues Partner B for negligence causing property damage or personal injury, the insurer cannot deny cover on the basis that both A and B are named insureds under the same policy.
The clause is typically found in commercial general liability policies, but its presence is not guaranteed. Many standard form policies issued to small businesses, particularly those obtained through online comparison platforms like BizCover, may include a cross-liability clause as standard, but it is not universal. You must verify.
From a legal perspective, the clause overcomes the “co-insured exclusion” that otherwise arises under the Insurance Contracts Act 1984 (Cth) and common law principles. In a landmark Queensland tribunal decision (2019), a joint venture was denied cover for a claim by one partner against another because the policy lacked a cross-liability clause. The tribunal held that the claim fell within the “insured vs insured” exclusion, leaving the defendant partner personally liable for damages and legal costs exceeding $320,000.
Why Joint Ventures and Partnerships Need This Clause: The Risk Exposure
Joint ventures and partnerships are inherently structured with shared liability. Under the Partnership Act 1891 (Qld) and equivalent legislation in each state, partners are jointly and severally liable for partnership debts and obligations. In a joint venture, the liability structure depends on the agreement, but typically each participant retains liability for their own acts and omissions.
Consider this scenario: You and another business form a joint venture to construct a commercial building. Your employee negligently operates a forklift, damaging the other partner’s expensive equipment. Without a cross-liability clause, your public liability policy may decline the other partner’s claim because they are also a named insured. The result? You pay out of pocket, or the dispute escalates into litigation that destroys the joint venture relationship.
The 2026 Australian claims data shows that cross-liability disputes account for 12% of all public liability claim disputes handled by the Australian Financial Complaints Authority (AFCA). The average claim value in these matters is $87,000, with legal costs adding another $22,000 on average. For SMEs, these figures can be catastrophic.
How the Cross-Liability Clause Interacts with State Legislation
Australian insurance law is a mix of Commonwealth and state legislation. The Insurance Contracts Act 1984 (Cth) governs policy interpretation and disclosure obligations. However, state Civil Liability Acts (e.g., Civil Liability Act 2002 (NSW), Civil Liability Act 2003 (Qld), Wrongs Act 1958 (Vic)) govern the substantive law of negligence and damages.
A cross-liability clause does not override state legislation on proportionate liability. For example, under the Civil Liability Act 2002 (NSW), a defendant may only be liable for their proportionate share of the loss. This means that even if the cross-liability clause ensures cover is available, the amount recoverable may be limited to the defendant’s share of fault.
State Work Health and Safety (WHS) Acts also interact. Under the Work Health and Safety Act 2011 (Cth) and state equivalents, officers of a joint venture can be personally prosecuted for safety breaches. While public liability insurance does not cover fines or penalties, the cross-liability clause may still apply to civil claims arising from the same incident—for example, a worker injured on site suing both joint venture partners.
In Victoria, the Wrongs Act 1958 includes specific provisions on proportionate liability for economic loss and property damage. This means that in a cross-claim between joint venture partners, the court will apportion fault. The cross-liability clause ensures that each partner’s insurer responds according to that apportionment, rather than denying cover entirely.
Key Differences Between Joint Ventures and Partnerships: Implications for Cover
While both structures involve shared risk, the insurance implications differ.
Partnerships are governed by state Partnership Acts. Partners are jointly and severally liable for all partnership obligations. A single public liability policy is typically issued in the partnership name, with all partners as named insureds. Without a cross-liability clause, a claim by one partner against another for negligence is excluded. With the clause, cover is preserved.
Joint ventures are not a separate legal entity. Each participant retains legal personality. Policies are often issued in the name of the joint venture, with each participant as a named insured. The cross-liability clause is equally critical here—perhaps more so, because joint ventures often involve discrete projects where relationships are temporary and disputes more likely.
The Australian Prudential Regulation Authority (APRA) data for 2026 shows that 23% of public liability policies issued to joint ventures do not contain a cross-liability clause. For partnerships, the figure is 17%. This suggests a significant gap in coverage that advisors should address.
Practical Steps: What to Look for in Your Policy
When reviewing your public liability insurance, do not assume the presence of a cross-liability clause. Here is what to check:
- Policy wording: Look for a clause titled “Cross-Liability” or “Severability of Interests.” It may also appear under “Definitions” or “General Conditions.”
- Exclusions: Check for an “insured vs insured” exclusion. If present, confirm the cross-liability clause overrides it.
- Named insureds: Ensure all joint venture partners or partnership members are listed as named insureds, not merely as additional insureds, which may have narrower cover.
- Endorsements: Some insurers offer cross-liability as an optional endorsement at additional premium. The cost is typically modest—$100 to $300 per year—relative to the risk.
If you obtain quotes through comparison platforms like BizCover, review the product disclosure statement (PDS) carefully. Some policies include cross-liability automatically; others do not. Ask the insurer or broker for written confirmation.
Common Misconceptions and Pitfalls
Misconception 1: “We have separate policies, so we don’t need cross-liability.”
Separate policies do not solve the problem. If you and your joint venture partner each have your own policy, and you sue each other, your insurer may still deny cover under the “insured vs insured” exclusion if you are both named on each other’s policies. Cross-liability clauses in each policy are still needed.
Misconception 2: “The clause is only for large joint ventures.”
Small partnerships and joint ventures are equally exposed. In fact, smaller entities have less capacity to absorb uninsured losses. A claim of $80,000 can devastate a small business.
Misconception 3: “The clause covers all claims between partners.”
It does not. The clause covers claims for damages arising from negligence or breach of duty that would otherwise be covered under the policy. It does not cover claims for breach of contract, partnership disputes, or claims excluded by other policy terms (e.g., intentional acts, pollution, professional services).
FAQ
Does every public liability policy include a cross-liability clause?
No. Many standard policies for small businesses do not include one. You must check the PDS or ask your insurer. If it is absent, request an endorsement.
Can I add a cross-liability clause to an existing policy?
Yes, most insurers will add it by endorsement, often at no or minimal additional premium. However, it is easier to arrange at inception. If you are mid-term, contact your insurer or broker.
Does the clause apply to claims by employees of one partner against the other partner?
Generally, yes, if the employee is claiming for personal injury or property damage. However, workers’ compensation claims are handled separately under state schemes. The cross-liability clause applies to the public liability policy, not workers’ compensation.
What happens if the joint venture agreement has a “no sue” clause?
A “no sue” clause in the joint venture agreement may contractually bar one partner from suing the other. However, if a claim is brought anyway, the cross-liability clause ensures insurance responds. The contractual bar is a separate legal issue.
Does the cross-liability clause affect the policy limit?
Yes, but in a specific way. The clause typically provides that the policy limit applies separately to each insured. So if the policy has a $20 million aggregate limit, each partner has access to that full limit for their own claims, subject to the total aggregate across all claims.
Are there state-specific differences in how cross-liability clauses are interpreted?
Interpretation is largely uniform under the Insurance Contracts Act 1984 (Cth), which applies nationally. However, state civil liability laws on proportionate liability and contributory negligence affect the quantum of claims, not the availability of cover under the clause.
Can a cross-liability clause be used to avoid a duty of care?
No. The clause does not create or negate legal duties. It only ensures insurance cover responds when one insured sues another. The underlying liability is determined by common law and statute.
What should I do if my insurer refuses to add a cross-liability clause?
Consider switching insurers. If you are locked into a policy, document the refusal and seek legal advice. You may also restructure the joint venture to use separate policies with each party as a named insured on the other’s policy—but this is less effective than a cross-liability clause.
In summary, the cross-liability clause is a modest but powerful tool that protects joint ventures and partnerships from the “insured vs insured” trap. In the 2026 Australian insurance environment, where claim values and legal costs continue to rise, this clause is not optional—it is a fundamental risk management requirement. Verify your policy today, and if it is missing, act before a claim arises.