Casual employment gives Australian businesses flexibility, but the rules around moving a casual employee into permanent work have shifted. Since 26 August 2024, the National Employment Standards moved away from the old casual conversion model and into an employee choice pathway.
That change has led to one practical question in payroll, HR and operations teams: when do you actually have to offer a casual employee permanent work?
For most employers, the answer is no longer “automatically after a set period”. You do not have to offer permanent work to every casual employee. What you do have to do is respond correctly when an eligible casual employee gives a written notice asking to change to full-time or part-time employment.
How casual conversion rules changed in Australia
Under the current rules, the trigger usually comes from the employee, not the employer. That is the core shift.
The old expectation that an employer may need to make an offer after a period of regular service is no longer the main pathway under the NES.
The employee choice pathway started on 26 August 2024. An eligible casual employee can now notify their employer in writing that they want to change to permanent employment if they believe they no longer meet the definition of a casual employee.
That makes the process more targeted. Instead of reviewing every long-term casual and deciding whether an offer is due, employers now need a clear internal process for receiving, assessing and answering employee notices.
When employers must respond to a casual employee request
The point at which an employer must act is when an eligible casual employee gives written notice seeking full-time or part-time work. Eligibility depends on service length and whether the employee believes they no longer fit the casual definition.
Before looking at the finer points, this quick reference table sets out the current position.
| Issue | Most employers | Small business employers |
|---|---|---|
| Who starts the process? | Employee gives written notice | Employee gives written notice |
| Minimum service | 6 months | 12 months |
| Need to offer permanent work automatically? | No | No |
| Response deadline | Within 21 days | Within 21 days |
| Can refusal occur? | Yes, on limited statutory grounds | Yes, on limited statutory grounds |
| Earliest employee choice access for casuals employed before 26 August 2024 | 26 February 2025 | 26 August 2025 |
A small business employer for this purpose is one with fewer than 15 employees. When counting employees, a casual is only counted if they are a regular casual employee.
This means the real compliance question is not “Have they worked regular hours for a while?” on its own. The sharper question is “Have they given an eligible written notice, and can we lawfully accept or refuse it?”
What counts as a casual employee under the Fair Work Act
The Fair Work Act does not treat the word “casual” as a label that can simply stay in place forever because it appears in a contract. The test looks at whether there is a firm advance commitment to continuing and indefinite work, and whether the employee is entitled to a casual loading or a specific casual pay rate.
The law also says the assessment must focus on the real substance, practical reality, and true nature of the employment relationship. So the written contract still matters, but so does the way the work is actually performed over time.
An employee may start as a genuine casual and later work in a pattern that looks much more settled and ongoing. That does not automatically make them permanent, but it can support their view that they no longer meet the casual definition.
Signs that should prompt a closer review include:
- Regular weekly hours
- Ongoing roster expectations
- Repeating shifts over a long period
- Little real choice about accepting work
- Casual loading still paid, but the work pattern looking stable and indefinite
No single factor decides the issue by itself. A regular pattern is relevant, though the legal test still comes back to whether there is truly no firm advance commitment to ongoing work.
Employer response obligations and the 21 day timeframe
Once a written notice is received, the employer must do more than file it away for later. There is a set process, and timing matters.
The employer must discuss the notice with the employee and then give a written response within 21 days. That response should either accept the change or refuse it on a lawful ground. Silence, delay, or a casual verbal answer is a risky approach.
A practical internal process often includes:
- Receive the written notice: record the date it was received
- Discuss the request: talk through the employee’s current pattern of work and the form of permanent role sought
- Assess eligibility: check service length, small business status, and whether the employee still appears to meet the casual definition
- Check industrial settings: review the relevant award, enterprise agreement, classification and minimum hours rules
- Issue the written response: accept or refuse within 21 days, with clear reasons if refusing
This is where payroll and HR need to work together. A change to full-time or part-time status affects leave accruals, public holidays, ordinary hours, overtime, superannuation processing and reporting settings. A rushed answer without a system review can create fresh compliance issues even if the decision itself is sound.
What happens if there is a dispute about employee choice
If the issue is not resolved at workplace level, the Fair Work Commission can deal with disputes about whether a casual employee may change to full-time or part-time employment.
Grounds for refusing a casual employee choice notice
An employer can refuse a written notice, but only on limited grounds set by law. This is not a broad discretion to say no because permanent employment feels inconvenient.
One refusal ground is that the employee still meets the casual definition. If the real substance of the relationship still shows no firm advance commitment to continuing and indefinite work, refusal may be open.
Another ground is fair and reasonable operational grounds. That phrase is narrower than many employers first assume. It should be assessed carefully and tied to actual operational facts, not general preference.
A third ground applies where accepting the notice would mean breaching a law that requires a particular recruitment or selection process. In some sectors, that may include a merit-based selection process for an ongoing role.
Operational grounds may include issues like these:
- Genuine inability to provide stable part-time or full-time hours
- A role structure that depends on ad hoc demand
- A clear mismatch between the employee’s requested change and available ongoing work
- A legal barrier tied to a required recruitment process
The safer approach is to write reasons that are specific, evidence-based and linked to the legislation. A short refusal that says “business needs do not support conversion” without detail may not hold up well if challenged.
Why “fair and reasonable operational grounds” needs care
This ground should not become a default template. If a casual has worked regular, predictable hours for a long time, and those hours are likely to continue, an employer should think carefully before relying on operational reasons to refuse.
Transition dates for employees hired before 26 August 2024
The commencement dates matter for long-serving casuals who were already employed when the law changed.
If a casual employee was employed before 26 August 2024, and the employer is not a small business employer, the employee choice pathway became available to them from 26 February 2025. If the employer is a small business employer, the pathway became available from 26 August 2025.
That timing has practical value. It explains why a business may now be seeing written notices from casual employees whose working patterns have looked stable for quite some time.
Payroll and rostering actions after a casual employee changes status
If the employer accepts the notice, the next step is not just a contract letter. The payroll setup must also change correctly from the effective date.
A move from casual to permanent status usually means the business needs to confirm ordinary hours, employment type, leave treatment, pay rates, public holiday handling and award or agreement settings. Casual loading is a key part of this review, because the pay basis for permanent employees is different.
Payroll teams should also check employee self-service settings, roster templates, reporting lines and manager approvals. A status change that sits on paper but not in the system can quickly produce inaccurate payslips, leave balances and STP data.
For businesses with larger casual cohorts, this is where a structured process helps most. An onshore payroll team with award interpretation capability can review the employee’s pattern, confirm the right setup and reduce the chance of a dispute being turned into a pay compliance problem.
No. Since 26 August 2024, there’s no automatic conversion. An eligible casual employee must give written notice under the employee choice pathway, and the employer then has 21 days to respond.
21 days from receiving the written notice. The response must be in writing and must either accept the change or refuse it on one of the lawful grounds.
Yes, on limited grounds — for example if the employee still meets the legal definition of casual, or if there are genuine operational grounds. Small business employers (fewer than 15 employees) also have a longer minimum service requirement (12 months vs 6) before an employee is eligible to make a request.
The notice isn’t automatically accepted, but a missed deadline increases dispute risk. If the matter isn’t resolved at the workplace level, the employee can take it to the Fair Work Commission.
From 26 February 2025 for most employers, and from 26 August 2025 for small business employers.
Recordkeeping for casual conversion rules and employee choice notices
The strongest defence in any casual conversion dispute is often the quality of the recordkeeping. Keep the employee’s written notice, the discussion notes, service calculations, roster history, contract terms, payroll settings review and the written response.
If the notice is refused, the file should clearly show why. If the notice is accepted, the file should show when the change took effect and how payroll, leave, superannuation and hours arrangements were updated.
