What is whole person impairment NSW?

In NSW, Whole Person Impairment (WPI) is a percentage assessed under the SIRA NSW Workers Compensation Guidelines for the Evaluation of Permanent Impairment (Workers Comp) or the Motor Accident Permanent Impairment Guidelines (CTP). It's determined by an accredited medical assessor following structured chapter-by-chapter assessment of each affected body region. Used to determine lump-sum compensation under Section 66 and to gate access to common-law damages above 15% WPI.

What is the WPI threshold in NSW?

Two key thresholds in NSW workers compensation: 11% WPI is the minimum for any lump-sum permanent impairment payment under Section 66; 15% WPI opens access to common-law work injury damages claims against the employer. For psychiatric injuries the threshold is 15% WPI under Section 65A. For NSW motor accidents (CTP), 10% WPI is the threshold for non-economic loss damages under the Motor Accident Injuries Act 2017.

How much is each percent of WPI worth in NSW?

Under the NSW workers compensation Section 66 schedule (2024-25), payments scale with severity tier - approximately $3,000 per WPI point in the 11-20% tier, around $5,000 per point in the 21-30% tier, increasing further at higher tiers. The schedule CPI-indexes annually. Above 15% WPI, common-law damages run separately and can be much larger - your matched specialist assesses both pathways.

What is the NSW WPI Table?

The 'WPI Table' refers to the NSW workers compensation Section 66 lump sum schedule - a published schedule that tells you the dollar amount payable for each WPI percentage band, updated annually with CPI indexation. Your matched NSW workers comp specialist can pull the current schedule and tell you what your specific WPI band is worth.

NSW Whole Person Impairment Calculator: WPI Payouts NSW

Q: How do I dispute a NSW WPI assessment?

NSW workers comp WPI disputes go to the Personal Injury Commission (PIC), which appoints a Medical Assessor (an accredited specialist) to provide an independent rating. Either party can lodge a Medical Dispute Application. The Medical Assessor's certificate is generally binding on the parties and the trustee. Many WPI disputes settle on the new rating; others proceed to PIC for further determination.

NSW WPI calculator

NSW WPI scheme overview

NSW operates two parallel WPI assessment streams:

Workers compensation - assessed under the NSW Workers Compensation Guidelines for the Evaluation of Permanent Impairment (issued by SIRA, currently in 4th edition or later). Used for Section 66 lump-sum permanent impairment compensation under the Workers Compensation Act 1987.
Motor accidents (CTP) - assessed under the Motor Accident Permanent Impairment Guidelines (issued by SIRA). Used to determine eligibility for non-economic loss damages under the Motor Accident Injuries Act 2017.

Both schemes use accredited medical assessors. The substantive methodology is similar (both based on AMA Guides 4th/5th editions with NSW modifications) but the scheme rules, thresholds, and dispute pathways differ.

SIRA Guidelines methodology

Maximum medical improvement (MMI). Your prognosis must have stabilised. Premature assessment understates true impairment.
Accredited assessor selection. Each body region has a specialty - orthopaedic for spine and joints, neurologist for brain/nerves, psychiatrist for mental health, ophthalmologist for vision, audiologist/ENT for hearing.
Objective and clinical assessment. Range of motion, neurological deficit, imaging findings, treating clinician records.
Apportionment. Pre-existing impairment is deducted. Where pre-injury condition is similar to claimed injury, apportionment can substantially reduce the rating.
Combined Values Chart. Multiple body regions are combined per the chart, not added.
Psychiatric WPI separately. Psychiatric WPI is assessed using PIRS (Psychiatric Impairment Rating Scale) and paid separately from physical WPI - critical for dual-injury matters.

NSW WPI thresholds

Scheme / claim type	Threshold
Workers comp Section 66 lump sum (physical)	11% WPI minimum
Workers comp Section 65A lump sum (psychiatric)	15% WPI minimum
Workers comp common-law work injury damages	15% WPI threshold
NSW CTP non-economic loss damages	10% WPI threshold
Lifetime Care and Support Scheme (catastrophic)	Catastrophic injury per LTCS Authority criteria

NSW WPI payout table 2024-25 (workers compensation, Section 66)

WPI band	Approximate lump sum	Approx. per-percent rate
11% (minimum)	$28,000	$2,545/pp
15%	$45,000	$3,000/pp
20%	$72,000	$3,600/pp
25%	$110,000	$4,400/pp
30%	$170,000	$5,667/pp
40%	$280,000	$7,000/pp
50%	$420,000	$8,400/pp
60%	$560,000	$9,333/pp
70%	$650,000	$9,286/pp
75%+	$700,000+ (max)	capped

These figures are approximate and CPI-index annually. Your matched specialist can confirm exact current amounts. Psychiatric Section 65A lump sums use a separate scale.

Above 15% WPI: common-law work injury damages

Reaching 15% WPI in NSW workers comp opens a separate, often much larger, claim path: common-law work injury damages. Unlike the statutory Section 66 lump sum, common-law damages cover:

Past and future loss of earnings (typically discounted to present value)
Past and future medical expenses
Past and future care needs
Loss of superannuation
Out-of-pocket expenses

Common-law claims require proof of negligence by the employer (breach of duty of care) and run alongside the workers comp lump sum (subject to refunds of certain weekly benefits). They typically settle 18-36 months after the WPI assessment. Six-figure to seven-figure outcomes are common for serious injuries.

Disputing a NSW WPI assessment

WPI disputes go to the Personal Injury Commission (PIC). Either party can lodge a Medical Dispute Application; the PIC appoints an accredited Medical Assessor who issues a binding certificate. Common reasons to dispute:

Original assessor sat just below a threshold (10% rather than 11%, or 14% rather than 15%)
Pre-existing apportionment too aggressive
Body regions inadequately assessed
Combined Values Chart applied incorrectly
Psychiatric WPI inadequately assessed

Many disputes qualify for Independent Review Office (IRO) funded representation - your legal costs are paid by IRO if you're eligible. We can connect you with an IRO Approved Lawyer free.

Free NSW WPI claim assessment A NSW workers comp specialist will assess your matter and arrange formal WPI assessment when timing is right →