If you roster casual staff, you’ve probably asked yourself: can I ask a casual employee for a medical certificate? It’s a fair question - especially when you’re juggling last‑minute shift changes, safety obligations and a need for consistent processes across your team.
In Australia, casual employees don’t receive paid sick leave, so the rules around “evidence” (for example, medical certificates or statutory declarations) can feel unclear. The good news is there are clear situations where you can request proof of illness or injury - and some important boundaries to respect so you stay compliant and fair.
This guide steps through when you can ask for a certificate, what the Fair Work Act says, how awards and contracts fit in, and practical tips for handling privacy and discrimination risks. Our aim is to help you set up simple, consistent practices that protect your business and your people.
What Counts As A Casual Employee In Australia?
Casual employees work without a firm advance commitment to continuing and indefinite work. Shifts can vary week to week, and each engagement is generally treated as a separate period of employment. Casuals don’t receive paid annual leave or paid personal/carer’s leave, but they usually receive casual loading to compensate for those entitlements.
Because there’s no paid personal leave for casuals, some employers assume medical certificates are irrelevant. In reality, there are several circumstances where it’s reasonable - and lawful - to ask your casual staff to provide evidence for an absence.
When Can You Ask A Casual For A Medical Certificate?
Casuals don’t have a blanket obligation under the National Employment Standards (NES) to provide medical certificates. However, you can ask for evidence in specific situations, including:
- If an applicable Modern Award or enterprise agreement permits or requires you to request evidence for an absence due to illness, injury, carer’s responsibilities or compassionate circumstances.
- If your workplace policy or Employment Contract for casuals says evidence is required to confirm an inability to work a rostered shift (paid or unpaid).
- Where a casual requests NES entitlements that are available to them - for example, unpaid carer’s leave, compassionate leave, or paid family and domestic violence leave - and the law or the award allows you to ask for evidence.
- If it’s reasonable in the circumstances to verify that the absence is genuine (for example, recurring short‑notice non‑attendance on peak trading days).
Reasonableness matters. Requests should be consistent across comparable situations, clearly communicated in advance, and limited to what’s necessary to verify the absence. You generally don’t need to know the diagnosis - only that the employee was unfit for work for the period stated.
Common, Lawful Reasons To Request Evidence
- Work health and safety: confirming fitness to return to work following illness or injury, or after a specified period away. If you’re unsure where the line sits, see our guidance on requesting medical clearance.
- Attendance and rostering: managing last‑minute gaps fairly and transparently across your team.
- Preventing misuse: deterring non‑genuine non‑attendance without penalising genuine illness or caring responsibilities.
On the flip side, avoid using certificate requests as a disciplinary tool, and don’t single out individuals for stricter rules unless there is a clear, documented reason that you would apply consistently in similar cases.
What Does The Fair Work Act Say About Evidence For Casuals?
The Fair Work Act 2009 (Cth) sets out minimum entitlements (the NES) and interacts with awards and agreements. For casuals, key points include:
- No paid personal/carer’s leave: casuals don’t accrue paid sick leave under the NES, so they don’t have to supply evidence to “access” paid personal leave.
- Unpaid carer’s leave: casuals are entitled to 2 days of unpaid carer’s leave per occasion to care for an immediate family or household member. You can ask for evidence that would satisfy a reasonable person (for example, a medical certificate or statutory declaration).
- Compassionate leave: casuals are entitled to 2 days of unpaid compassionate leave per occasion for a serious illness, injury or death of a close family or household member. Evidence can be requested.
- Family and domestic violence leave: employees (including casuals) are entitled to 10 days of paid family and domestic violence leave per 12‑month period, with evidence permitted where reasonably required to satisfy you the leave is for the purpose set out in the Act.
Beyond the NES, many awards allow you to request evidence for an absence due to illness or injury - even where no paid leave is involved - provided the request is reasonable and consistent with the award terms.
Awards And Enterprise Agreements
Modern Awards and enterprise agreements often include detailed evidence rules. For example, they may say an employer can ask any employee (including casuals) to provide evidence that would satisfy a reasonable person that the employee was not fit for work during a particular period, or that they needed to care for someone.
Always check the instrument that covers your workplace before finalising your approach. If your award sets a higher or different standard than your policy, the award will generally prevail. If you’re juggling short‑notice changes, it may also help to revisit your notice requirements for casual employees to ensure your rostering practices align with your obligations.
Policies, Contracts And Process: Getting Your Settings Right
The most practical way to manage certificates is to spell out your approach up front - in your casual contracts and your policies - and then apply those settings consistently.
Contracts
Include a clear, reasonable clause in your casual contracts stating when evidence may be required for absences due to illness, injury or caring responsibilities, and what forms of evidence you will accept (for example, a doctor’s certificate, pharmacist certificate or statutory declaration). Avoid language that implies absolute discretion or blanket demands regardless of context.
Policies And Staff Handbook
Your attendance and leave policy, or your staff handbook, should explain who to notify, when to notify, what evidence may be requested and how it should be submitted. Keep it simple, fair and easy to follow, and make sure supervisors are trained to apply it in the same way across the team.
- A medical certificate from a registered health practitioner (GP, nurse practitioner, psychologist, dentist - depending on the illness/injury - or a pharmacist certificate where permitted).
- A statutory declaration confirming the employee was unfit for work or needed to provide care.
- Other written evidence expressly permitted in your award, agreement or policy.
Certificates usually only need to confirm unfitness for work (or caring need) for specific dates. They do not need to include a diagnosis or detailed health information. If you suspect fraud, address it respectfully and privately, and seek advice before taking any adverse action.
Medical evidence is sensitive. It must be handled with care - but there’s also a common misconception that every employer must have a public‑facing privacy policy for employee medical records. Here’s the practical position.
Privacy Act: Small Business And Employee Records Exemptions
- Small business threshold: many businesses with annual turnover of $3 million or less are exempt from the Australian Privacy Principles (APPs) under the Privacy Act 1988 (Cth), unless an exception applies (for example, health service providers or businesses that trade in personal information).
- Employee records exemption: for APP entities, the APPs generally don’t apply to “employee records” when handled in direct relation to a current or former employment relationship. This exemption is limited - it doesn’t cover job applicants, contractors or how you handle customer data.
Even where an exemption applies, you still have legal duties around confidentiality, workplace safety, discrimination and record‑keeping. It’s best practice to collect only what you need, restrict access to those who need to know, and store records securely.
If you do collect personal information in a way that brings you within the APPs (for example, because you exceed the turnover threshold or you run an online store collecting customer data), you’ll likely need a clear, accessible Privacy Policy for customer and website data and should implement internal protocols for staff records.
Discrimination And Fairness
Requests for evidence must never be used to disadvantage someone because of a protected attribute (for example, disability, pregnancy, family responsibilities or age). Apply your rules consistently, ask only for what you need to verify the absence, and ensure any follow‑up conversations are respectful and confidential. If issues escalate, it can be helpful to get advice about your discrimination obligations before taking action.
Practical Scenarios And Employer FAQs
“Can I require a certificate for every casual absence?”
Generally, it’s better to set a clear rule in your policy or award‑compliant contract - for example, evidence may be required where a casual is absent on a rostered day due to illness or injury, or where unpaid carer’s leave or compassionate leave is requested. Blanket, inflexible rules (like “every single absence must have a doctor’s certificate, no exceptions”) can be unreasonable in practice and hard to administer. Reasonableness and consistency are key.
“What if a casual calls in sick for a same‑day shift?”
Your policy should explain who to notify and when, and whether evidence may be requested. If you commonly receive last‑minute calls on high‑demand days, you might adopt a rule that evidence can be required for same‑day absences on weekends or public holidays, applied consistently across roles. For context around rostering obligations, review your award and your approach to notice requirements for casuals.
“Can I refuse a medical certificate?”
Approach refusals with caution. If a certificate appears facially valid and covers the relevant dates, it will usually be unreasonable to reject it without clear evidence of fraud or serious inconsistency. If you have concerns, discuss them privately with the employee and seek legal advice before treating the absence as unauthorised.
“What about recurring short absences without certificates?”
Use your policy framework. If your settings allow you to request evidence in certain patterns (for example, multiple Monday absences in a month), apply that consistently. Consider whether a fitness for work discussion is appropriate - in some cases, asking for medical clearance following a period of illness is the right tool to support both the employee and your safety obligations.
“Do certificates have to come from a doctor?”
Not always. Awards, agreements and policies often allow a statutory declaration, and some employers accept pharmacist certificates for short absences. Check the instrument covering your workplace and name the acceptable options in your policy and contracts.
“Can a casual take sick leave without a certificate?”
Casuals don’t have paid sick leave under the NES, and your policy may allow evidence‑free absences below a certain threshold. Still, for some entitlements and in some circumstances, evidence is required or may reasonably be requested. For an employee perspective on evidence, you might also find it useful to read about sick days without a certificate to understand common concerns.
“How should I store medical certificates?”
Keep them secure and accessible only to those who need to know. Retain for an appropriate period in line with your record‑keeping requirements and any applicable award. Avoid emailing certificates around; instead, use a secure HR inbox or system with restricted access.
“Do I need employees to include their diagnosis?”
No. A certificate confirming unfitness for work for specified dates is usually sufficient. Asking for more information than you need can raise discrimination and privacy risks and can damage trust with your staff.
“What else should my policy cover?”
Clarity helps everyone. Alongside evidence settings, cover notification timelines (who to contact and by when), how to submit certificates, whether you accept pharmacist certificates or statutory declarations, any patterns where evidence is automatically requested, and your expectations around fitness to return to work after certain absences.
Step-By-Step: Putting A Compliant Process In Place
1) Confirm Your Coverage
Identify the Modern Award or enterprise agreement that applies to your casuals. Note any specific evidence rules, notice requirements and definitions you need to mirror in your policies and contracts.
2) Update Your Contracts
Include a clear clause in your casual contracts outlining when evidence may be requested and acceptable forms of evidence. Ensure the clause aligns with your award and is reasonable and non‑discriminatory in practice. If you haven’t updated your casual templates in a while, consider refreshing your Employment Contract to reflect current best practice.
3) Refresh Your Policy And Train Supervisors
Set out a simple, consistent process in your attendance/leave policy or staff handbook. Train roster managers on how to apply it and how to handle sensitive conversations.
4) Set Up Secure Storage
Decide how you’ll collect, store and restrict access to medical certificates. Even if the Privacy Act’s APPs don’t apply to your handling of employee records, it’s prudent to treat health information confidentially and store it securely.
5) Monitor Patterns And Adjust
Keep an eye on recurring issues (for example, spikes in last‑minute non‑attendance) and adjust your rostering, notice expectations and evidence settings within the boundaries of your award and policy. When concerns arise, address them early and respectfully.
6) Safety First
For higher‑risk roles or after particular illnesses or injuries, consider whether you should request a fitness for work assessment to meet your health and safety obligations. Balance operational needs with reasonable adjustments and support where appropriate.
Key Takeaways
- Casual employees don’t get paid personal leave under the NES, but you can lawfully request evidence for certain absences - especially where your award, agreement, policy or contract permits it and it’s reasonable in the circumstances.
- Casuals are entitled to unpaid carer’s leave and unpaid compassionate leave, and they also have access to paid family and domestic violence leave - you may request evidence in line with the Fair Work Act and any applicable award.
- Make your approach clear in your casual contracts and policies, apply it consistently, and accept reasonable evidence such as medical certificates or statutory declarations without demanding diagnoses.
- Handle health information carefully. Even if Privacy Act exemptions apply (small business or employee records), keep records confidential, collect only what you need and store them securely.
- Train supervisors to apply your settings fairly and to escalate concerns appropriately, including where a medical clearance may be needed to support safety.
- If you’re unsure about an award clause, a pattern of absences or a disputed certificate, getting tailored advice early will help you resolve the issue and avoid unnecessary risk.
If you’d like a consultation on managing medical certificates for casuals, updating your contracts and policies, or handling a tricky situation with a current employee, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no‑obligations chat.
