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MAC Act Legacy Claims in NSW: How CTP Insurers Decide Compensation (Ashfield)

Legacy MAC Act claims in NSW are assessed under the old framework, but insurers apply different rules than for newer CTP claims. This article explains how insurers evaluate these claims, what evidence matters, and steps to challenge a decision. Contact LegalAdvice.com.au for tailored advice.

Current as at 23 August 2026

How NSW CTP Insurers Assess MAC Act Legacy Claims

If you've been injured in a motor accident before 2017 and are seeking compensation under the old Motor Accident Claims Act (MAC Act), you may be dealing with a 'legacy claim'. These claims are now assessed under the current Compulsory Third Party (CTP) scheme, but insurers apply different rules than for newer claims. This article explains how insurers evaluate legacy MAC Act claims, what evidence matters, and steps to challenge a decision.

Legal Framework for MAC Act Legacy Claims

The Motor Accident Injuries Act 2017 (MAIA) replaced the MAC Act in 2017, but legacy claims are still processed under the old framework. Key differences include:

  • Threshold injuries: Under the MAC Act, injuries like soft tissue damage (e.g., whiplash) were eligible for benefits, but the new scheme requires a 'threshold injury' with specific clinical signs (e.g., spinal nerve-root injury). Insurers must assess whether your injury meets the old MAC Act's criteria.
  • Benefits structure: Legacy claims may qualify for weekly income payments, treatment benefits, or lump sum damages depending on injury severity. Insurers use the Motor Accident Guidelines to determine eligibility.
  • SIRA's role: The State Insurance Regulatory Authority (SIRA) oversees CTP claims and provides official guidance on legacy claims. Their website explains how to submit claims and dispute decisions.

Evidence and Practical Steps for Claimants

Insurers evaluate legacy claims based on medical evidence and accident details. Key documents include:

  • Medical records proving injury (e.g., MRI scans, doctor notes)
  • Accident reports from police or witnesses
  • Evidence of income loss or treatment costs
  • Correspondence with insurers

If your injury meets the MAC Act's threshold (e.g., a spinal nerve-root injury with neurological signs), you may be eligible for benefits. However, insurers may dispute claims by arguing your injury doesn't meet the old criteria.

Time Limits and Dispute Options

Legacy claims must be submitted within 52 weeks of the accident unless the injury wasn't immediately apparent. If your claim is rejected, you can:

  • Request a review from the insurer
  • Submit a formal dispute to SIRA
  • Seek mediation through the NSW Civil and Administrative Tribunal (NCAT)

Note: The 52-week rule applies to 'only injuries' (i.e., injuries that don't exceed the threshold). If your injury is above threshold, benefits may continue beyond 52 weeks.

Example: How an Insurer Might Decide a Legacy Claim

Consider a 2015 car accident where a passenger sustained soft tissue damage. Under the MAC Act, this injury would qualify for benefits. However, under the new scheme, the insurer might argue the injury doesn't meet the current 'threshold injury' definition (e.g., no spinal nerve-root involvement). This could affect your entitlement to ongoing payments.

When to Seek Legal Advice

If your insurer denies your claim or disputes the injury's severity, consult a solicitor. They can help you:

  • Challenge the insurer's assessment of your injury
  • Submit a formal dispute with evidence
  • Explore options for compensation beyond statutory benefits

Next Steps

CTP insurers assess legacy MAC Act claims based on the old framework, but the new scheme applies different rules. To understand your options, gather medical evidence, review the insurer's decision, and seek advice if needed. Every claim depends on its own facts. To request contact about your circumstances, complete the quick, no obligation enquiry form.

Prepared using automated research and drafting tools and checked through LegalAdvice editorial and source-validation controls. This page is general information, not personalised legal advice.

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