Can You Be Forced To Work When Sick? Employer Obligations And Rights

No one starts a business hoping to end up in a dispute about sick leave. But when you’re short-staffed, facing customer deadlines, or trying to keep the doors open, it’s easy for “Can you still come in?” to become a default response.

The problem is that what feels like a practical request can quickly become a legal and HR risk. If a team member says they’re unwell and they feel forced to work when sick in Australia, you may be stepping into issues under the Fair Work Act, work health and safety (WHS) laws, discrimination laws, and your own policies and contracts.

This article is written for small business owners and managers. We’ll walk through what you can (and can’t) do when an employee is sick, what “forcing” work can look like in practice, and how to set up a simple, legally safer process that protects your team and your business.

What Does “Forced To Work When Sick” Mean For Employers?

In many workplaces, “forced” doesn’t look like a direct threat. It can be much more subtle, for example:

• implying there will be consequences if the person doesn’t attend (loss of shifts, fewer hours, disciplinary action)
• rejecting a sick leave request without a lawful reason or without properly considering the employee’s entitlement and evidence
• pressuring an employee to work despite a medical certificate or other evidence
• creating a culture where employees feel they can’t take leave without being “punished”
• asking employees to “work from home” while on sick leave, or to monitor emails and calls while they say they’re unfit

From a small business perspective, the key legal risk is not just what you intended, but how your actions (and messages) could reasonably be perceived. A text like “If you don’t come in, don’t bother coming back next week” can quickly escalate into allegations of adverse action or unfair treatment.

It’s also worth remembering that “sick” doesn’t always mean a visible cold or flu. It can include physical injury, mental health conditions, and chronic illnesses. Your obligations don’t disappear just because the symptoms aren’t obvious.

Can You Require An Employee To Come To Work If They Say They’re Sick?

In most cases, if an employee is unfit for work due to illness or injury (and they follow your workplace process, including providing evidence where it’s reasonably required), you should not be requiring them to attend work.

Instead, the legal and practical focus should be on:

• what leave they are entitled to (paid personal/carer’s leave, unpaid leave, or other arrangements)
• what evidence you can reasonably request
• how you manage operational impacts (rostering, shift coverage, workload)

Personal/Carer’s Leave Basics (Why This Matters)

Under the National Employment Standards (NES), full-time and part-time employees can access paid personal/carer’s leave when they are unfit for work because of illness or injury. Casual employees generally don’t get paid sick leave, but they still have workplace protections and may be entitled to unpaid leave in certain situations.

Even if a team member isn’t entitled to paid personal leave (for example, casuals), pressuring them to work while unwell can still trigger serious issues, including WHS risks and potential general protections claims.

Evidence: When Can You Ask For A Medical Certificate Or Statutory Declaration?

You can generally ask an employee to provide evidence that would satisfy a reasonable person that they were genuinely sick or injured and unfit for work. Common forms of evidence include a medical certificate or a statutory declaration.

If your employee doesn’t have immediate access to a doctor, it may be appropriate to accept a statutory declaration (depending on your workplace rules and the circumstances). In some workplaces, you may choose to provide guidance on statutory declarations for sick leave so your process stays consistent.

Be careful about setting “blanket rules” (like requiring a certificate for every single day off) if they’re not supported by an award, enterprise agreement, or your contract/policy framework. Overly rigid approaches can create conflict and may be unreasonable in practice.

“Work From Home Instead” Isn’t Always A Safe Option

If someone is genuinely unfit for work, asking them to work from home may still be inappropriate. It can also blur payroll, leave, and workers compensation issues.

A better approach is to ask a simple question: “Are you well enough to work today?” If the answer is no, treat it as leave (or another agreed arrangement), not a remote work day.

Key Employer Obligations When A Staff Member Is Sick

When an employee calls in sick, your obligations aren’t limited to approving leave. You also need to manage legal risk across safety, fairness, privacy, and workplace relations.

1. Work Health And Safety (WHS): Don’t Create A Safety Risk

As an employer, you have a duty to provide a safe workplace. If you pressure sick employees to work, you can increase the risk of:

• workplace accidents (fatigue, reduced concentration)
• infectious disease spread (impacting other staff and customers)
• psychological injury (stress, burnout, anxiety)

For customer-facing businesses (hospitality, retail, health, childcare), the reputational and operational fallout from an outbreak can be huge. It’s often more costly than rearranging a roster for one day.

2. Follow The Fair Work Act And Your Industrial Instrument

Your minimum obligations will depend on what covers the employee:

• the NES (applies to most employees)
• a modern award
• an enterprise agreement
• their individual employment contract

This is where many small businesses get caught out. For example, cancellation of shifts, notice requirements, and evidence rules can differ depending on the award and contract terms.

If you rely heavily on casuals, make sure your approach to roster changes and cancellations is aligned with your broader shift cancellation policy and any applicable award terms.

3. Don’t Take “Adverse Action” Against Employees Who Are Sick

One of the biggest legal risks in “forced to work when sick in Australia” situations is when an employee believes they were punished for taking sick leave (or asking for it).

Examples of adverse action risks can include:

• cutting shifts because someone took sick leave
• demoting them or reducing their hours because they were away sick
• threatening dismissal for using leave
• treating them differently after they provide a medical certificate

Even if you’re frustrated about last-minute absences, be very careful about how you respond. Focus on the process (evidence, planning, operational coverage), not punishment.

4. Handle Medical Information Carefully

If an employee tells you they’re sick, you should avoid digging into unnecessary details. In most cases, you only need to know that they are unfit for work and (if relevant) the expected timeframe for return.

If you need more information to manage risk (for example, fitness to perform specific duties), you can consider requesting medical clearance in a lawful and proportionate way. This is particularly relevant where safety is involved or where duties are physically demanding. The key is to request information that is relevant to the role and the risk, not a broad “tell me everything.”

Where this comes up, it helps to understand when employers can ask for medical clearance to return to work.

Practical Steps: What Should You Do When Someone Calls In Sick?

The best “legal protection” is often a calm, consistent process that you apply the same way every time. Here’s a practical approach that works well for many small businesses.

Step 1: Confirm They’re Unfit And Ask About Urgency

Keep it simple and respectful:

• “Thanks for letting me know. Are you unfit to work today?”
• “Do you have an estimate of when you might be back?”

Avoid guilt-driven responses (even if you’re stressed). Written messages can become evidence later.

Step 2: Confirm Evidence Requirements (If Relevant)

If evidence is required (for example, under an award, contract, policy, or because the absence is on a high-impact day), ask for it in a neutral way:

• “No problem. Can you please provide a medical certificate or statutory declaration when you’re able?”

If you’ve had issues with misuse of sick leave, you can still request evidence. But consistency matters. Selectively requesting evidence from one employee and not others can look unfair or discriminatory.

Step 3: Record The Absence Properly

Make sure your payroll/HR records reflect:

• the date and hours missed
• the leave type used (paid personal leave, unpaid leave, annual leave by agreement, etc.)
• whether evidence was requested/received

Good records help you stay compliant, respond to disputes, and spot patterns that might require a performance conversation (handled carefully and lawfully).

Step 4: Manage The Roster Without Retaliation

It’s okay to manage operational needs. What you should avoid is responding in a way that looks like punishment.

For casual teams, this can be tricky, because shifts can change more frequently. If you need to cancel or change shifts due to illness-related rostering impacts, make sure you comply with any notice requirements and your own written rules. Many businesses formalise this in a clear roster/shift policy and align it with their contracts.

Step 5: If It’s Ongoing, Consider A Fit-For-Work Plan

If illness is recurring or long-term, you may need to manage capacity and safety, not just attendance.

This can include:

• temporary adjustments to duties
• reduced hours by agreement (and consistent with legal requirements)
• requesting medical clearance or functional capacity information
• a structured return-to-work plan

If you’re unsure, this is one of those moments where tailored advice is important, because missteps can lead to claims (for example, discrimination or unfair dismissal).

How To Reduce The Risk Of “Forcing” Sick Staff To Work (Without Losing Control Of Your Business)

Small business owners often ask: “If I can’t push back on sick leave, won’t my business fall apart?”

You can absolutely run a reliable operation without pressuring sick employees to work. The goal is to set expectations, clarify processes, and create coverage systems that don’t rely on guilt.

Use Clear Employment Contracts From Day One

A good employment contract can help set clear expectations about:

• hours of work and rostering processes
• leave requests and evidence requirements
• pay, penalty rates (if relevant), and classification
• confidentiality and workplace conduct

If you employ staff (including casuals), having a properly tailored Employment Contract is one of the simplest ways to reduce confusion and disputes.

Create A Simple “Sick Leave And Absence” Process

Your process doesn’t need to be complicated. A one-page policy or handbook section can cover:

• who to notify and by what time
• how to notify (phone call vs SMS vs app)
• when evidence is required
• how leave is recorded
• what happens if someone is frequently unwell (support steps, check-ins, and expectations)

Consistency is the real win here. When every manager handles it differently, employees can claim they were treated unfairly.

Train Managers Not To “Solve” Sick Leave With Pressure

If you have supervisors or team leaders, a quick training session can prevent a lot of trouble.

Focus training on:

• approved language (supportive, neutral messaging)
• when to request evidence
• what not to say in writing
• when to escalate to the business owner or HR support

This matters because many disputes start with a single poorly worded text message.

Be Careful With Stand Downs, Suspensions, And “Investigations” Linked To Sick Leave

If you suspect misuse of sick leave, it can be tempting to go straight to disciplinary action.

But if your response is too heavy-handed, or timed around the leave request, it can create legal risk. If you’re considering standing someone down or suspending them pending investigation, do it carefully and lawfully. In these situations, having a clear process (and advice) is crucial.

For context on how sensitive this can be, see standing down an employee pending investigation.

Common Scenarios Small Businesses Face (And How To Handle Them)

“They’re Sick Again And It’s Always On A Friday”

Patterns can be frustrating, and you’re not expected to ignore genuine operational issues.

What you can do:

• apply a consistent evidence rule (for example, evidence required for absences before/after public holidays or for single-day absences, if your system supports it)
• hold a supportive check-in meeting (focus on wellbeing and expectations)
• document concerns neutrally (avoid assuming dishonesty)

What to avoid:

• threats like “If you’re sick again, you’re fired”
• cutting shifts purely as retaliation for using leave

“They Say They’re Sick But I Saw Them Out Socialising”

This doesn’t automatically mean the employee wasn’t unfit for work. Some illnesses allow limited activity but not work duties, and some people may be recovering.

If you genuinely suspect misconduct, handle it as a process issue:

• request evidence
• ask for an explanation
• investigate proportionately
• keep notes

Try not to “prosecute” the employee in the moment. Overreacting is a common cause of claims.

“They’re Casual So They Don’t Get Sick Leave, So Can I Expect Them To Work?”

Casual employees generally don’t receive paid personal/carer’s leave, but that doesn’t mean you can pressure them to work while unwell.

From a business perspective, two practical points matter:

• WHS and safety obligations still apply
• your roster change and cancellation approach should be consistent and lawful

It’s also important to be clear about casual expectations in writing, including notice and shift acceptance rules. If you’re reviewing your casual arrangements, you may also want to understand notice requirements for casual employees.

“Can I Ask Them To Use Annual Leave Instead Of Sick Leave?”

You can’t generally force an employee to use annual leave when they’re sick if they are entitled to paid personal/carer’s leave and can provide evidence when required.

However, where paid personal leave is exhausted (or where the employee is casual), parties sometimes agree to annual leave, unpaid leave, or alternative arrangements. Any approach should be documented and applied fairly.

Key Takeaways

• If an employee is genuinely unfit for work (and meets any reasonable evidence requirements), requiring them to attend can create legal and safety risks and may contribute to complaints about being forced to work when sick in Australia.
• You can usually request reasonable evidence (like a medical certificate or statutory declaration), but you should apply your approach consistently across your team.
• Pressuring employees to work while sick can trigger WHS issues, adverse action/general protections risks, and disputes about fairness and treatment.
• A clear process (notification, evidence, record-keeping, and roster management) is one of the best ways to protect your business while supporting your team.
• Well-drafted contracts and policies help set expectations early and reduce the chance of conflict when sick leave issues arise.

If you’d like help reviewing your sick leave processes, employment contracts, or workplace policies, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.