Australia: Proportionate liability: model legislation released that may affect insurers

Last Updated: 18 March 2014
Article by Alissa Anderson

In response to the insurance crisis of 2002, each Australian jurisdiction introduced its own proportionate liability legislation; however, inconsistencies between the jurisdictions' legislation and the lack of clarity of some key provisions have been the subject of criticism and uncertainty. These issues led the Standing Council on Law and Justice (formerly the Standing Committee of Attorneys-General) to undertake an extensive review of the regime.

As a result of this review, the Standing Committee released its draft Model Proportionate Liability provisions on 16 September 2011 (see our article, Are you paying your fair share? Proposed changes to proportionate liability in Australia). Following public consultation on the draft provisions, the Standing Council released its revised draft model legislation in October 2013. Each state and territory will need to introduce the model legislation into their own jurisdiction to achieve consistency and clarify key provisions.

Proportionate liability involves a defendant only compensating a claimant for the proportion of damage they are responsible for. This protects marginally liable defendants with "deep pockets", such as those with insurance, from being liable for the whole of the loss suffered. Proportionate liability effectively shifts the risk of recovery from other defendants—who may be unavailable, insolvent or poor—from the defendant to the claimant.

What is an apportionable claim?

Under the draft legislation, an apportionable claim is a claim for economic loss or damage to property and it is an action for damages:

  • where a failure to take reasonable care is an element of the claimant's action, or
  • where there are statutory misleading or deceptive conduct claims.

Proportionate liability is not intended to apply to claims based on breach of strict or absolute contractual obligations.

The following claims are excluded from the proportionate liability regime:

  • agency
  • claims under prescribed legislation, as tailored by each jurisdiction
  • consumer claims, and
  • exemplary/punitive damages
  • intentional or fraudulent conduct
  • liability excluded by other legislation, and
  • vicarious liability and the liability of a partner.

Who is a concurrent wrongdoer?

A concurrent wrongdoer is defined as one of two or more persons:

  • whose conduct caused the same or "substantially or materially similar" loss or damage, and
  • who, if sued, would have been liable for the loss or damage.

The draft legislation is intended to incorporate the High Court's reasoning in Hunt & Hunt, meaning that people may be concurrent wrongdoers even if they cause the loss or damage in different ways (see our article, High Court gives guidance on proportionate liability).

Requirement of notification

The draft legislation requires the defendant to:

  • provide the claimant with information about the identity, location and circumstances giving rise to their belief that any other person is a possible concurrent wrongdoer, and
  • notify the other possible concurrent wrongdoers and the court.

If the defendant alleges that there is another concurrent wrongdoer in a proceeding, the defendant bears the onus of establishing a prima facie case against them.

After receiving this notice, and if there was a reasonable opportunity to include the person as a defendant in the earlier proceedings, the claimant will only be able to bring subsequent proceedings against that concurrent wrongdoer with the leave of the court

Further, in those subsequent proceedings, the first judgment acts as:

  • a cap of the claimant's damages
  • the minimum proportionate liability of each concurrent wrongdoer who was a party to the first proceeding, and
  • the minimum contributory negligence of the claimant.

Apportioning liability

When apportioning liability, the court:

  • must consider the comparative responsibility of any concurrent wrongdoer joined to the proceedings
  • may consider the comparative responsibility of concurrent wrongdoers who are not joined, and
  • is to consider what is "just and equitable" having regard to the defendant's responsibility for the loss or damage.

Early settlement

To encourage early settlements, the draft provisions prevent a concurrent wrongdoer who settles with a claimant from being exposed to contribution claims from other concurrent wrongdoers.

Contracting out

Contracting out is prohibited under the draft legislation. However, there is an exception for agreements for one concurrent wrongdoer to contribute to the damages recoverable from, or to indemnify, another concurrent wrongdoer.


The draft legislation gives individual jurisdictions the option to exclude the proportionate liability regime from arbitral tribunals or other entities capable of making a binding determination, unless they are a court or tribunal.


Insurers need to monitor the development of this legislation given its potential impact on their liability, and ability to recover from other parties. Further, as the legislation may override any contractual risk allocation, insurers will need to ensure their risk assessment position reflects the regime that is ultimately passed.

The content of this article is intended to provide a general guide to the subject matter. Specialist advice should be sought about your specific circumstances.

To print this article, all you need is to be registered on

Click to Login as an existing user or Register so you can print this article.

Alissa Anderson
Some comments from our readers…
“The articles are extremely timely and highly applicable”
“I often find critical information not available elsewhere”
“As in-house counsel, Mondaq’s service is of great value”

Mondaq Advice Centre (MACs)
Up-coming Events Search
Font Size:
Mondaq on Twitter
Register for Access and our Free Biweekly Alert for
This service is completely free. Access 250,000 archived articles from 100+ countries and get a personalised email twice a week covering developments (and yes, our lawyers like to think you’ve read our Disclaimer).
Email Address
Company Name
Confirm Password
Mondaq Topics -- Select your Interests
 Law Performance
 Law Practice
 Media & IT
 Real Estate
 Wealth Mgt
Asia Pacific
European Union
Latin America
Middle East
United States
Worldwide Updates
Check to state you have read and
agree to our Terms and Conditions

Terms & Conditions and Privacy Statement (the Website) is owned and managed by Mondaq Ltd and as a user you are granted a non-exclusive, revocable license to access the Website under its terms and conditions of use. Your use of the Website constitutes your agreement to the following terms and conditions of use. Mondaq Ltd may terminate your use of the Website if you are in breach of these terms and conditions or if Mondaq Ltd decides to terminate your license of use for whatever reason.

Use of

You may use the Website but are required to register as a user if you wish to read the full text of the content and articles available (the Content). You may not modify, publish, transmit, transfer or sell, reproduce, create derivative works from, distribute, perform, link, display, or in any way exploit any of the Content, in whole or in part, except as expressly permitted in these terms & conditions or with the prior written consent of Mondaq Ltd. You may not use electronic or other means to extract details or information about’s content, users or contributors in order to offer them any services or products which compete directly or indirectly with Mondaq Ltd’s services and products.


Mondaq Ltd and/or its respective suppliers make no representations about the suitability of the information contained in the documents and related graphics published on this server for any purpose. All such documents and related graphics are provided "as is" without warranty of any kind. Mondaq Ltd and/or its respective suppliers hereby disclaim all warranties and conditions with regard to this information, including all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement. In no event shall Mondaq Ltd and/or its respective suppliers be liable for any special, indirect or consequential damages or any damages whatsoever resulting from loss of use, data or profits, whether in an action of contract, negligence or other tortious action, arising out of or in connection with the use or performance of information available from this server.

The documents and related graphics published on this server could include technical inaccuracies or typographical errors. Changes are periodically added to the information herein. Mondaq Ltd and/or its respective suppliers may make improvements and/or changes in the product(s) and/or the program(s) described herein at any time.


Mondaq Ltd requires you to register and provide information that personally identifies you, including what sort of information you are interested in, for three primary purposes:

  • To allow you to personalize the Mondaq websites you are visiting.
  • To enable features such as password reminder, newsletter alerts, email a colleague, and linking from Mondaq (and its affiliate sites) to your website.
  • To produce demographic feedback for our information providers who provide information free for your use.

Mondaq (and its affiliate sites) do not sell or provide your details to third parties other than information providers. The reason we provide our information providers with this information is so that they can measure the response their articles are receiving and provide you with information about their products and services.

If you do not want us to provide your name and email address you may opt out by clicking here .

If you do not wish to receive any future announcements of products and services offered by Mondaq by clicking here .

Information Collection and Use

We require site users to register with Mondaq (and its affiliate sites) to view the free information on the site. We also collect information from our users at several different points on the websites: this is so that we can customise the sites according to individual usage, provide 'session-aware' functionality, and ensure that content is acquired and developed appropriately. This gives us an overall picture of our user profiles, which in turn shows to our Editorial Contributors the type of person they are reaching by posting articles on Mondaq (and its affiliate sites) – meaning more free content for registered users.

We are only able to provide the material on the Mondaq (and its affiliate sites) site free to site visitors because we can pass on information about the pages that users are viewing and the personal information users provide to us (e.g. email addresses) to reputable contributing firms such as law firms who author those pages. We do not sell or rent information to anyone else other than the authors of those pages, who may change from time to time. Should you wish us not to disclose your details to any of these parties, please tick the box above or tick the box marked "Opt out of Registration Information Disclosure" on the Your Profile page. We and our author organisations may only contact you via email or other means if you allow us to do so. Users can opt out of contact when they register on the site, or send an email to with “no disclosure” in the subject heading

Mondaq News Alerts

In order to receive Mondaq News Alerts, users have to complete a separate registration form. This is a personalised service where users choose regions and topics of interest and we send it only to those users who have requested it. Users can stop receiving these Alerts by going to the Mondaq News Alerts page and deselecting all interest areas. In the same way users can amend their personal preferences to add or remove subject areas.


A cookie is a small text file written to a user’s hard drive that contains an identifying user number. The cookies do not contain any personal information about users. We use the cookie so users do not have to log in every time they use the service and the cookie will automatically expire if you do not visit the Mondaq website (or its affiliate sites) for 12 months. We also use the cookie to personalise a user's experience of the site (for example to show information specific to a user's region). As the Mondaq sites are fully personalised and cookies are essential to its core technology the site will function unpredictably with browsers that do not support cookies - or where cookies are disabled (in these circumstances we advise you to attempt to locate the information you require elsewhere on the web). However if you are concerned about the presence of a Mondaq cookie on your machine you can also choose to expire the cookie immediately (remove it) by selecting the 'Log Off' menu option as the last thing you do when you use the site.

Some of our business partners may use cookies on our site (for example, advertisers). However, we have no access to or control over these cookies and we are not aware of any at present that do so.

Log Files

We use IP addresses to analyse trends, administer the site, track movement, and gather broad demographic information for aggregate use. IP addresses are not linked to personally identifiable information.


This web site contains links to other sites. Please be aware that Mondaq (or its affiliate sites) are not responsible for the privacy practices of such other sites. We encourage our users to be aware when they leave our site and to read the privacy statements of these third party sites. This privacy statement applies solely to information collected by this Web site.

Surveys & Contests

From time-to-time our site requests information from users via surveys or contests. Participation in these surveys or contests is completely voluntary and the user therefore has a choice whether or not to disclose any information requested. Information requested may include contact information (such as name and delivery address), and demographic information (such as postcode, age level). Contact information will be used to notify the winners and award prizes. Survey information will be used for purposes of monitoring or improving the functionality of the site.


If a user elects to use our referral service for informing a friend about our site, we ask them for the friend’s name and email address. Mondaq stores this information and may contact the friend to invite them to register with Mondaq, but they will not be contacted more than once. The friend may contact Mondaq to request the removal of this information from our database.


This website takes every reasonable precaution to protect our users’ information. When users submit sensitive information via the website, your information is protected using firewalls and other security technology. If you have any questions about the security at our website, you can send an email to

Correcting/Updating Personal Information

If a user’s personally identifiable information changes (such as postcode), or if a user no longer desires our service, we will endeavour to provide a way to correct, update or remove that user’s personal data provided to us. This can usually be done at the “Your Profile” page or by sending an email to

Notification of Changes

If we decide to change our Terms & Conditions or Privacy Policy, we will post those changes on our site so our users are always aware of what information we collect, how we use it, and under what circumstances, if any, we disclose it. If at any point we decide to use personally identifiable information in a manner different from that stated at the time it was collected, we will notify users by way of an email. Users will have a choice as to whether or not we use their information in this different manner. We will use information in accordance with the privacy policy under which the information was collected.

How to contact Mondaq

You can contact us with comments or queries at

If for some reason you believe Mondaq Ltd. has not adhered to these principles, please notify us by e-mail at and we will use commercially reasonable efforts to determine and correct the problem promptly.