Providing notice to casual employees and your obligations as an Australian employer

The obligation in one paragraph

Every time you change a roster, cancel a shift, stand staff down or end a casual engagement, notice rules apply. The twist is that the statutory termination notice rules in the Fair Work Act 2009 (Cth) mostly do not apply to casuals at all. The real duties come from elsewhere: modern awards and enterprise agreements that govern rosters and cancellations, the terms of your own contracts, the casual conversion provisions, and the requirement to hand each casual the Casual Employment Information Statement. Get one of these wrong and you face underpayment claims, unfair dismissal applications and Fair Work Ombudsman (FWO) penalties that now run into the hundreds of thousands of dollars per contravention.

This guide sets out who these obligations apply to, the triggers that bring them into play, each duty in turn, and the practical steps that keep a casual workforce compliant.

Who these obligations apply to and when they bite

Four factors decide which of these obligations apply to you:

National system employers: Most private sector employers in Australia, from sole traders to large companies, are national system employers covered by the Fair Work Act 2009 (Cth) and its National Employment Standards (NES). The notice duties below operate alongside those standards.
Casual employees: Under s 15A of the Fair Work Act, an employee is a casual only if the relationship involves no firm advance commitment to continuing and indefinite work, and the employee receives a casual loading or a specific casual rate of pay. Since the 2024 amendments, the test looks at the real substance of the relationship, not just the label in the contract.
Small business employers: A business with fewer than 15 employees, counting regular casuals only, is a small business employer under s 23 of the Act. Size matters here because it changes the casual conversion timeline and some information statement obligations.
Award and agreement coverage: Which modern award or enterprise agreement covers the role decides most of the roster and cancellation notice questions, because the NES itself is largely silent on them.

Casual employment is engagement by engagement. Each shift offered and accepted is a separate engagement, and that shapes what notice means in each scenario below.

Duty 1: Confirm who is actually a casual

Before any notice question, get the classification right. Since March 2021 the Act has defined casual employment, and from 26 August 2024 the definition was sharpened. Under s 15A there are two limbs. First, the employment relationship must be characterised by an absence of a firm advance commitment to continuing and indefinite work, assessed on the real substance, practical reality and true nature of the relationship. Second, the employee must be entitled to a casual loading or a specific casual rate under a fair work instrument or their contract.

A regular work pattern does not by itself make a worker permanent. If you roster someone the same hours every week for years, they can still be a casual under s 15A so long as there is genuinely no firm advance commitment. But if the practical reality is that you guarantee ongoing work, the label on the contract will not save you. A worker who is really a permanent employee is entitled to the full NES package, including written notice of termination under s 117, redundancy pay, paid leave and the rest, and the casual loading is not a substitute for those entitlements.

Misclassification is the most expensive notice mistake you can make, because it is not just a notice problem. It is an underpayment problem that compounds over the whole period of employment.

Duty 2: Ending a casual engagement

The NES gives casuals no statutory notice of termination. Section 117 of the Act requires employers to give written notice of termination, or payment in lieu, to employees generally, but s 123(1)(c) excludes casual employees from the whole notice of termination and redundancy pay division. Ending a casual engagement by simply not offering further shifts is lawful under the NES, and no notice period or redundancy pay is owed there.

That is not the end of the analysis. Three other sources of obligation can bite:

Contracts and instruments: If your contract, a modern award or an enterprise agreement promises a notice period, a process for ending an ongoing roster cycle, or a payout, you must honour it. A promise to give a week's notice to a casual who has worked a set roster for a year is enforceable.
Unfair dismissal: A casual who has been employed on a regular and systematic basis, with a reasonable expectation of continuing employment on that basis, can count that service toward the minimum employment period of six months (12 months for a small business employer) and bring an unfair dismissal claim. The test sits in s 384(2)(a) of the Act. "No notice needed" does not mean "no process needed", and a poorly handled ending can still be harsh, unjust or unreasonable.
General protections: Casuals are protected against adverse action for exercising a workplace right. Ending an engagement because an employee gave a casual conversion notice, or to avoid a conversion obligation, is expressly prohibited.

On the way out, pay everything owed: all hours worked at the correct rate including loading, any award allowances, and any accrued entitlements. Casuals generally do not accrue annual or personal leave because the loading compensates for those, but underpaying the hours actually worked is still a contravention.

Duty 3: Roster changes and shift cancellations

When you move a shift, change start or finish times, or cancel work entirely, the award or enterprise agreement does the talking. The NES does not set a national roster notice period. Instead, individual instruments commonly include:

Roster posting rules: many awards require rosters to be published a set number of days before work begins
Change notice periods: minimum hours or days of notice before a published roster can be altered
Consultation obligations: some instruments require you to consult, genuinely consider the employee's views, and record the discussion
Minimum engagement payments: if a shift is shortened or cancelled, many awards require payment for a minimum number of hours
Travel and reporting allowances: an employee who has already travelled to or reported at the workplace may be owed pay or an allowance even if no work follows.

The specific figures differ from award to award, so the duty is to check the applicable instrument before you act, not after. Where the award is silent, the safe course is to give the longest practical written notice you can, explain the reason, and keep a dated record. Consistent roster posting and change practices also reduce disputes, because employees who can see the pattern can plan around it.

Duty 4: Stand down is a narrow power

Standing employees down without pay is available only in limited circumstances. Under s 524 of the Act, you may stand down an employee during a period in which they cannot usefully be employed because of industrial action you did not organise or engage in, a breakdown of machinery or equipment you cannot reasonably be held responsible for, or a stoppage of work for any cause for which you cannot reasonably be held responsible.

For casuals, stand down is usually the wrong tool. A casual who is not rostered or engaged in the affected period has no shift to stand down from, and a casual who is rostered is better dealt with under the award's shift cancellation and minimum engagement rules. If you do rely on stand down, the test is strict and evidence-based: you must be able to show the stoppage, that it was not your fault, and that employees could not be usefully employed. Get advice before proceeding on a stand down plan, because a wrongful stand down means the affected employees are owed their pay.

Duty 5: Respond to casual conversion notices within 21 days

This is the notice obligation that is genuinely new and easy to miss. Since 26 August 2024, the old conversion framework was replaced by an employee choice pathway under ss 66A to 66M of the Act. A casual who has been employed for at least six months, or 12 months with a small business employer, and who believes they no longer meet the casual definition, can give you written notice that they want to change to permanent employment.

When a notice arrives you must:

Consult first: Discuss what would change, including whether the employee would be full-time or part-time, the new hours of work, and when the change would take effect.
Respond in writing within 21 days: Accept the change or refuse it, with reasons.
Limit refusals to the statutory grounds: You can refuse only if the employee still meets the casual definition, there are fair and reasonable operational grounds (such as substantial changes to how work is organised, significant impacts on the business, or award compliance problems), or accepting would breach a legally required recruitment or selection process.
Apply an accepted change promptly: It takes effect from the first day of the first full pay period after your response, unless you and the employee agree otherwise.

You cannot reduce an employee's hours, change their pattern of work, or terminate them to avoid a conversion obligation, and an employee who exercises these rights is protected against adverse action. If the 21-day window lapses without a proper response, the employee can take the dispute to the Fair Work Commission, and any later cut to their hours will look like retaliation.

Duty 6: Give the Casual Employment Information Statement on time

A separate, easy-to-miss obligation: under s 125B of the Act, you must give each casual the Casual Employment Information Statement before or as soon as practicable after they start, again as soon as practicable after six months of employment, and again at 12 months and at the end of each subsequent 12-month period. Small business employers are exempt from the six-month and later 12-month repeats. The statement is how casuals learn about the employee choice pathway, so it feeds directly into the conversion duty above.

What non-compliance costs

The FWO can investigate a complaint, issue compliance notices, accept enforceable undertakings, and take employers to court. The stakes have risen sharply:

Higher penalties: Since the 2024 amendments, maximum civil penalties for contraventions of selected civil remedy provisions, which include the NES, are up to five times higher for employers with 15 or more employees. At current penalty unit values, a standard contravention by a non-small-business body corporate can attract up to $469,500, and a serious contravention, one that is knowing or reckless, up to $4,695,000.
Criminal exposure: From 1 January 2025, intentionally underpaying wages or entitlements can be a criminal offence, punishable by fines and imprisonment. Honest mistakes are not offences, but deliberate short payment is.
Underpayment back-pay: Any amounts wrongly withheld, including minimum engagement pay for cancelled shifts, must be repaid, and courts can order interest.
Dismissal claims: Unfair dismissal compensation and adverse action penalties sit on top, and both are open to long-term regular casuals despite the "no notice" rule.

A compliance checklist for casual notice

Run through these items for each casual role:

Map coverage: Identify the award or agreement covering each casual role and note its roster posting, change notice, consultation, minimum engagement and cancellation clauses on one page.
Diarise conversion deadlines: Respond to every employee choice notice within 21 days, after genuine consultation, in writing, with reasons grounded in the statutory grounds.
Publish and record rosters: Post rosters on a consistent cycle and keep copies, change notices and acknowledgements.
Standardise cancellations: Set a policy for how shifts are cancelled, what minimum engagement pay applies and how it is recorded, and train managers on it.
Use one notice channel: Email, SMS or an app, but one consistent channel with dated records.
Hand out the information statement: At commencement, six months, 12 months and annually, subject to the small business exemptions.
Review twice a year: Refresh award summaries, contract templates and this checklist, and confirm your documents reflect how you actually roster and notify.

When a lawyer should be involved

A lawyer helps when coverage is unclear, such as which award applies or whether a worker is genuinely casual under s 15A, and when drafting casual contracts, rostering rules and shift cancellation policies. Get advice before standing anyone down, and as soon as the FWO, a compliance notice or a claim letter arrives. A practitioner can run the award-by-award comparison for you and build the internal notice matrix managers actually use, so the duties stop living in one person's head.

The duty employers miss most

The 21-day conversion response is the notice obligation that catches businesses by surprise. It is new, it is triggered by a document an employee can send at any time after six months, and silence is a breach that usually only becomes visible later, when the employee disputes a cut to their hours. If you take one action this week, pull your casual list, note each start date, and diarise the six-month and 12-month marks so every employee choice notice gets a consulted, written and on-time answer. The rest of casual notice law rewards the same habit: know your award, put changes in writing, and keep the records.