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MAC Act Legacy Claims, Dispute Resolution Options in Greater Sydney

If you have a legacy claim under the Motor Accidents Compensation Act 1999 (MAC Act) in New South Wales, you may be facing a dispute over your compensation. This article explains the options for resolving such disputes, including internal reviews, mediation, and court action, and outlines the practical steps you can take to resolve conflicts over your claim.

Current as at 30 October 2026

MAC Act Legacy Claims, Dispute Resolution Options in Greater Sydney

If you have a legacy claim under the Motor Accidents Compensation Act 1999 (MAC Act) in New South Wales, you may be facing a dispute over your compensation. Understanding your options for resolving such disputes is essential. This article explains the process for resolving MAC Act legacy claims, how the State Insurance Regulatory Authority (SIRA) handles such cases, and the practical steps you can take to resolve conflicts over your compensation.

Understanding MAC Act Legacy Claims

The MAC Act was the previous scheme for motor accident compensation in NSW before it was replaced by the Motor Accident Injuries Act 2017 (MAIA) on 1 December 2017. Claims made under the MAC Act are now referred to as 'legacy claims'. These claims are still subject to the rules of the MAC Act, which may differ from the current MAIA scheme.

If you have a legacy claim, you may be entitled to certain benefits, such as weekly income payments, treatment and care benefits, or lump sum compensation, depending on the nature of your injury. However, disputes can arise over the amount of compensation you are owed or the eligibility of your claim.

Dispute Resolution Options for MAC Act Claims

If you are facing a dispute over your MAC Act legacy claim, there are several options available to you. These include:

  • Internal review by SIRA - You can request an internal review of your claim by SIRA. This is the first step in resolving a dispute.
  • Mediation - SIRA may offer mediation as a way to resolve disputes without going to court.
  • Court action - If you are not satisfied with the outcome of an internal review or mediation, you may be able to take your claim to court.

How SIRA Handles MAC Act Disputes

SIRA is responsible for administering the MAC Act and resolving disputes under the scheme. When a dispute arises, SIRA will typically conduct an internal review of the claim. This involves reviewing the evidence, including medical records, accident reports, and any correspondence with the insurer.

If the internal review does not resolve the dispute, you may be able to request mediation. Mediation is a process where a neutral third party helps you and the insurer reach an agreement. If mediation fails, you may be able to take your claim to court.

Practical Steps to Resolve MAC Act Disputes

If you are facing a dispute over your MAC Act legacy claim, there are several practical steps you can take to resolve the issue. These include:

  • Gather all relevant evidence - This includes medical records, accident reports, witness statements, and any correspondence with the insurer.
  • Request an internal review - You can request an internal review of your claim by SIRA. This is the first step in resolving a dispute.
  • Consider mediation - SIRA may offer mediation as a way to resolve disputes without going to court.
  • Seek legal advice - If you are not satisfied with the outcome of an internal review or mediation, you may want to seek legal advice to explore your options for taking your claim to court.

Example: Resolving a MAC Act Dispute

Let’s say you were involved in a motor accident in 2015 and made a claim under the MAC Act. You received weekly income payments for 52 weeks, but your claim was denied after that period. You believe you are entitled to additional compensation because your injury has not fully recovered. You can request an internal review of your claim by SIRA. If the internal review does not resolve the dispute, you may be able to request mediation or take your claim to court.

When to Seek Legal Advice

If you are facing a dispute over your MAC Act legacy claim, it is important to seek legal advice as soon as possible. A solicitor who specialises in motor accident claims can help you understand your options and ensure that your rights are protected.

Time Limits and Procedural Requirements

If you are not satisfied with the outcome of an internal review or mediation, you may need to take your claim to court within a specific timeframe. It is important to seek legal advice as soon as possible to ensure that you do not miss any deadlines.

Next Steps

If you have a MAC Act legacy claim and are facing a dispute over your compensation, it is important to understand your options for resolving the issue. You can request an internal review of your claim by SIRA, consider mediation, or take your claim to court. It is also important to seek legal advice as soon as possible to ensure that your rights are protected.

Every claim depends on its own facts. To request contact about your circumstances, complete the quick, no obligation enquiry form.

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