Workers compensation case note
Therikildsen v Deemann Pty Ltd [2026] NSWPIC 138: when a serious work injury claim fails on worker status
Therikildsen v Deemann Pty Ltd [2026] NSWPIC 138 is a sharp reminder that some claims rise or fall before weekly payments, medical expenses, or impairment are ever properly reached. The applicant suffered a very serious eye and facial injury during plumbing work, but the claim still failed because he did not prove he was a worker or deemed worker at the date of injury.
Key lesson
A serious workplace injury is not enough by itself if worker status is not proven.
This case matters because many real-world arrangements are messy: no payslips, irregular transfers, invoice-style payments, informal promises about wages, and poor paperwork. That mess can become fatal when the insurer or employer later disputes whether there was employment at all.
Decision snapshot
- • injury date: 5 April 2021
- • issue: worker / deemed worker status
- • result: applicant failed on that threshold issue
- • outcome: award for the respondent
What happened?
The applicant was a qualified plumber who said he was working for Deemann Pty Ltd when an oxygen regulator exploded on 5 April 2021, causing major injuries to his face, nose, and right eye. The medical consequences were serious. Multiple surgeries followed and the evidence described long-term visual impact.
The practical complication was not whether the accident happened. It was whether the applicant was legally within the NSW workers compensation scheme as a worker or deemed worker at the time. The arrangement described in the evidence was highly informal: discussions about going “on wages”, irregular payments, earlier invoicing, no payslips, no superannuation, and a blurred relationship between business, licence use, and day-to-day work.
Why the case matters
This is exactly the kind of factual setup that appears in real disputes. A person may be clearly doing work. They may even be central to the business. They may be injured on site in front of others. But if the legal character of the arrangement is loose, undocumented, or contradictory, the worker-status fight can become the whole case.
That is why Therikildsen matters beyond its own facts. It shows that threshold questions can destroy an otherwise substantial claim. Weekly payments, section 60 medical expenses, and even large impairment allegations can all become irrelevant if the worker-status foundation is not made out.
The legal issue
The Commission had to decide whether the applicant was a worker under the legislation, or alternatively a deemed worker. The catchwords and determinations make the result clear: the applicant failed his onus on that issue. Once that happened, the claim for weekly compensation and section 60 medical expenses failed, and there was an award for the respondent.
From a claimant perspective, the critical point is that the onus mattered. It was not enough to show a serious injury during work activity. The applicant had to prove the legal character of the relationship at the injury date.
Why messy payment arrangements are dangerous
One of the strongest practical lessons from the case is how dangerous informal payment structures can be. The evidence referred to invoices, irregular transfers, promises of future wages, lack of payslips, lack of superannuation, and payment descriptions that did not cleanly match an employment arrangement.
Workers often assume that if the employer says “you’re covered” or “I’ll put you on wages next week”, that will be enough later. It may not be. When the relationship is attacked after the injury, vague verbal understandings can be far weaker than people expect.
Practical takeaway
If there is any doubt about who employed you, whether you were on wages, whether you were invoicing, or whether you were really a contractor, do not leave that issue sitting in the background. It can become the core dispute. Worker status is not admin trivia. It can decide whether the scheme applies at all.
If your insurer or employer is starting to argue you were not a worker, the claim needs to be mapped carefully and early through the workers compensation service hub, the claim denied guide, or the PIC disputes guide.
AustLII source
Read the full decision on AustLII: Therikildsen v Deemann Pty Ltd [2026] NSWPIC 138.
Frequently asked questions
Can a workers compensation claim fail even if the injury clearly happened while doing work?
Yes. Therikildsen shows that a serious injury at a work site is not enough by itself. The applicant still has to prove they were a worker or deemed worker under the legislation at the time of injury.
Does an earlier insurer acceptance automatically protect the claim forever?
Not necessarily. This case shows that worker status can still become a central dispute and, if the applicant cannot prove it on the evidence, the claim can fail despite an earlier acceptance position.
Why is worker status so important?
Because if you are not a worker or deemed worker under the NSW scheme, the rest of the compensation claim usually falls away, including weekly payments and section 60 medical expenses.