Key Takeaway
The average backfilling period for workers' compensation claims in Australia is 7 weeks (49 days) for serious workplace injuries requiring temporary staff replacement.¹ However, mental health-related claims are a significant outlier, averaging 27 weeks — nearly four times longer.³
The Distribution of Backfilling Duration
Australian compensation data reveals a bimodal distribution in claim durations:²
| Duration Category | Proportion of Claims |
|---|---|
| 1–59 days (short-term) | 58% |
| 60+ days (extended) | 42% |
Most workplace incidents resolve within the 7-week median, allowing organisations to manage coverage through temporary staffing or overtime redistribution. However, the 42% of cases requiring extended backfilling represent a disproportionate share of total compensation expenses, creating compound operational and financial pressure beyond simple temporary staffing costs.²
Mental Health Claims: A Critical Outlier
Mental health-related claims present a fundamentally different backfilling challenge:³
| Metric | All Claims | Mental Health Claims |
|---|---|---|
| Average duration | 7 weeks | 27 weeks |
| Median claim payment | $14,500 | $45,900 |
This nearly four-fold increase in duration fundamentally alters staffing economics. Combined with the fact that mental health claims have grown 60% since 2000,³ their extended duration represents a critical — and growing — factor in workforce planning calculations.
Workforce Planning Implications
- Short-term claims (58%): Manageable through temporary staffing arrangements, overtime redistribution, or internal backfill.
- Extended claims (42%): Require more sophisticated workforce planning, including longer-term contract arrangements and role redesign.
- Mental health claims: Demand dedicated return-to-work strategies and proactive psychosocial risk management to reduce both incidence and duration.
Frequently Asked Questions
How long does the average workers' compensation claim last in Australia?
The average backfilling period for serious workers' compensation claims is 7 weeks (49 days). However, 42% of claims extend beyond 60 days.
How long do mental health workers' compensation claims last?
Mental health-related workers' compensation claims average 27 weeks — nearly four times longer than the overall 7-week average — with median payments of $45,900 compared to $14,500 for all claims.
What percentage of workers' compensation claims require extended backfilling?
42% of lost-time workers' compensation claims extend beyond 60 days, representing a disproportionate share of total compensation costs and requiring more sophisticated workforce planning.
References
- Safe Work Australia, National Data Set for Compensation-based Statistics.
- WorkCover Western Australia, Workers' Compensation in Western Australia — Industry Statistical Information 2019/20 to 2022/23.
- Safe Work Australia, Mental Health and the Workplace.