Work Limitations: Employer Legal Obligations And Reasonable Adjustments In Australia

As a small business owner, you’re likely juggling a lot at once: customers, cash flow, rostering, and keeping your team running smoothly.

So when an employee tells you they have work limitations (or you notice signs they can’t safely perform parts of their role), it can feel like you’re suddenly managing a mix of operational pressure and legal risk at the same time.

The good news is: most work limitation situations are manageable if you approach them in a structured way. With the right steps, you can support your worker, keep your workplace safe, and reduce the risk of disputes.

Below, we break down what “work limitation” means in an Australian workplace, what your legal obligations are, how to assess and document limitations properly, and what “reasonable adjustments” can look like in practice.

Note: This article provides general information only and doesn’t take into account your specific circumstances. Employment, WHS and discrimination obligations can differ depending on the state or territory you operate in, the relevant award/enterprise agreement, and the facts of the situation.

What Is A Work Limitation In The Workplace?

A work limitation is any restriction that affects what an employee can do at work, how they do it, or how long they can do it for.

Work limitations can be:

• Temporary (for example: a back injury expected to resolve in 4-6 weeks)
• Long-term or permanent (for example: a chronic medical condition)
• Physical (for example: no heavy lifting, no prolonged standing, limited driving)
• Psychological (for example: limitations on exposure to high-stress tasks, reduced customer-facing work for a period)
• Cognitive (for example: reduced ability to multitask, need for clearer instructions)

In practice, you might see work limitation issues arise through:

• a medical certificate or doctor’s note with restrictions
• a return-to-work plan after an injury
• an employee disclosure (for example, “I can’t do the opening shift anymore due to treatment”)
• a performance issue that may be linked to health
• a workplace incident, injury, or near miss

Why “Work Limitation” Matters For Employers

From an employer perspective, work limitation isn’t just an HR issue - it’s often a work health and safety (WHS) issue, a Fair Work issue, and sometimes a discrimination or confidentiality issue too.

Handled well, work limitations can be a normal part of managing a diverse workforce. Handled poorly, they can lead to:

• workplace injuries or aggravated conditions
• workers compensation claims
• general protections or discrimination claims
• unfair dismissal risk if termination is mishandled
• lost productivity and team conflict

What Are Your Legal Obligations As An Employer?

There isn’t one single “work limitation law” in Australia. Instead, your obligations typically sit across a few key legal areas.

1) Work Health And Safety (WHS): Providing A Safe Workplace

As an employer, you have a duty to provide a safe working environment and safe systems of work. That includes making sure an employee isn’t doing work that puts them (or others) at risk due to a known work limitation.

This often means you need to:

• identify hazards linked to the limitation (for example, fatigue, manual handling risks, driving risks)
• assess the risk (likelihood and severity)
• put controls in place (for example, lifting aids, modified duties, supervision)
• review and adjust controls over time

WHS duties can be strict in the sense that you can’t “contract out” of them, and you can’t ignore them because you’re short-staffed.

It can be helpful to think of work limitation management as part of your overall duty of care approach - you’re actively reducing foreseeable risks, not waiting until something goes wrong.

2) Fair Work Obligations: Managing The Employment Relationship Properly

Even where WHS is the main driver, you still need to manage the employment relationship lawfully - including how you communicate, roster, and direct the employee.

Your Employment Contract and any relevant modern award or enterprise agreement can affect what you can direct an employee to do (and the process for changes to duties or hours).

For example, if someone’s work limitation prevents them from doing their usual duties, you’ll usually need to consider:

• whether you can offer suitable alternative duties
• whether reduced hours are appropriate and lawful
• whether leave applies (paid personal leave, unpaid leave, annual leave by agreement)
• how you’ll manage performance expectations fairly

3) Anti-Discrimination: Avoiding Unlawful Treatment

Work limitation issues often overlap with disability discrimination laws (at federal and state/territory levels). Depending on the circumstances and the applicable law, “disability” can include physical, psychological and medical conditions - and it can sometimes include conditions that are temporary, episodic or controlled (for example, by medication).

While the details vary depending on jurisdiction and circumstances, a common theme is that you should not treat an employee unfavourably because of a disability, and you may need to consider reasonable adjustments to enable them to do the job - as long as those adjustments don’t create “unjustifiable hardship” for the business.

In other words, a work limitation doesn’t automatically mean “they can’t do the job”. The key is working through what can reasonably be done to keep them working safely and effectively.

4) Privacy And Confidentiality: Handling Medical Information Carefully

Work limitations often involve sensitive medical information. Exactly what legal obligations apply will depend on factors like whether you’re covered by the federal Privacy Act and what state/territory laws apply. Either way, it’s best practice to treat health information as confidential and share it only with those who genuinely need to know.

Practically, this means:

• collecting only what’s necessary (for example, restrictions rather than full diagnosis)
• storing documents securely
• avoiding “team-wide announcements” about someone’s medical condition
• keeping conversations factual and respectful

How To Assess And Document A Work Limitation (Step-By-Step)

When you’re managing a work limitation, your process matters. Clear steps reduce confusion, help you make consistent decisions, and create a paper trail if issues escalate later.

Step 1: Clarify The Limitation (Without Over-Collecting Medical Details)

Start with what you actually need to know for work purposes:

• What tasks can’t the employee do right now?
• Are there limits on hours, shift length, lifting, travel, standing, or stress exposure?
• Is it temporary or ongoing?
• When should the situation be reviewed?

If the employee provides a certificate that’s vague (for example, “light duties only”), it’s usually reasonable to ask for clarification about functional restrictions (not necessarily a diagnosis).

Where appropriate, you may request medical clearance or additional information to confirm they are fit to perform certain duties safely - especially if safety risks are involved. The key is making sure your request is reasonable and connected to the inherent requirements of the role.

This topic can get nuanced, particularly where mental health or confidentiality concerns are involved. If you’re unsure about what you can ask for and when, medical clearance guidance is a useful starting point for employers.

Step 2: Identify The Inherent Requirements Of The Role

Inherent requirements are the essential duties of a job - what the role genuinely needs someone to do.

For example:

• For a café all-rounder: prolonged standing, customer service, carrying trays, cleaning tasks
• For a delivery driver: safe driving, loading/unloading within safe limits, following routes and schedules
• For an admin role: keyboard work, phone communication, attention to detail, handling confidential information

This step matters because many legal questions come back to: can the employee perform the inherent requirements, with reasonable adjustments?

Step 3: Consult With The Employee (And Keep It Collaborative)

Even if you’re under pressure, try not to treat a work limitation as “the employee’s problem”. A consultative approach is usually safer and more effective.

In a practical meeting, you can cover:

• what the employee feels they can do safely
• possible modifications to duties or hours
• what supports would help (for example, more frequent breaks, different equipment, changed workstation)
• timeframes and review dates

Keep notes of the discussion, confirm outcomes in writing, and set a review point so the arrangement doesn’t drift indefinitely.

Step 4: Put Changes In Writing (Even If They’re Temporary)

When duties, hours, or reporting lines change due to a work limitation, document it.

This might be in the form of:

• a written temporary variation letter
• a return-to-work plan
• an email confirming modified duties and the review date

Also consider whether your Workplace Policy documents should set out how your business handles fitness-for-work concerns, medical information, and modified duties arrangements.

What Reasonable Adjustments Can You Make?

“Reasonable adjustments” means changes you make to help an employee work safely and perform their role, despite a work limitation.

There isn’t a single list that applies to every workplace - what’s reasonable depends on your business size, resources, the role, the limitation, and what adjustments are actually effective.

Common Examples Of Reasonable Adjustments

• Modified duties: temporarily removing heavy lifting, ladder work, repetitive tasks, or high-risk tasks
• Modified hours: shorter shifts, later starts, avoiding night shifts, or graduated return to full hours
• Workstation changes: ergonomic equipment, sit/stand desk, alternative seating
• More breaks: extra short breaks to manage pain, fatigue, medication side effects, or concentration
• Additional supervision or buddying: particularly for high-risk tasks during recovery
• Temporary reassignment: moving the employee into a suitable role if available
• Training and clearer instructions: where a cognitive limitation or fatigue affects processing

What Makes An Adjustment “Reasonable” For A Small Business?

For small businesses, the biggest concern is often, “We want to support them, but we can’t redesign the whole business around one role.”

That’s a valid concern - and “reasonable” doesn’t mean “unlimited”. Reasonableness often involves balancing:

• the safety risk if the adjustment isn’t made
• the cost and practicality of the adjustment
• the impact on your operations and other staff
• the length of time the adjustment is needed
• whether the adjustment actually helps the employee perform the job

A useful way to approach this is to consider options in tiers:

• Low cost / easy changes: duty swaps within a team, minor roster changes, ergonomic tweaks
• Moderate changes: temporary role redesign, additional training, short-term extra staffing
• High impact changes: major restructure or long-term inability to perform core duties

When you can show you’ve genuinely considered workable options, you’re in a much stronger position - even if not every option is feasible.

Managing Performance, Leave And Fitness For Work

Work limitations often bring up difficult management questions: What if the employee can’t do key parts of the job? What if performance drops? What if other staff are frustrated?

These issues can be managed - but it’s important to keep the legal risk front of mind.

Setting Fair Expectations (And Avoiding “Set And Forget”)

Modified duties arrangements should be reviewed. If you don’t set review points, temporary work limitation adjustments can accidentally become permanent - and that’s where confusion, inconsistency, and disputes can creep in.

Try using a simple cadence:

• agree on modified duties and expected outcomes
• set a review date (for example, 2-4 weeks)
• request updated medical information if needed
• adjust the plan based on evidence (not assumptions)

When Can You Direct Someone Not To Work?

Sometimes, the safest option is that the employee should not perform certain work until clearance is obtained - for example, after a serious incident, if there is impairment, or if you have reasonable concerns about safety.

However, you should be careful about how you do this, especially around pay and process. Depending on the circumstances, options can include directing the employee to perform safe alternative duties, requiring them to take leave (where lawful), or (in limited situations) using a lawful stand down. Whether the employee is paid will depend on the legal basis for the direction and the employee’s entitlements (including any award/enterprise agreement terms and the Fair Work Act).

If you’re navigating a complex situation (for example, safety concerns, conflicting medical information, or misconduct issues intertwined with a work limitation), it may be worth getting advice early. In some cases, the question becomes whether standing down is appropriate, or whether another approach is safer.

Leave Options During A Work Limitation

Depending on the circumstances, an employee may use:

• paid personal/carer’s leave (if eligible and the leave requirements are met)
• annual leave by agreement
• unpaid leave (by agreement)
• a mix of partial work and partial leave arrangements

Be cautious about pressuring employees to use annual leave for health-related absences, and always check any award-specific rules that might apply.

If The Employee Can’t Perform The Role Long-Term

Sometimes, after genuine efforts at adjustments and time to recover, it becomes clear the employee cannot perform the inherent requirements of the role (even with reasonable adjustments).

This is where you need to move very carefully. Ending employment in this context can carry elevated risk (unfair dismissal, discrimination, general protections), particularly if the employee’s condition is ongoing or could be considered a disability.

If you reach this stage, you’ll usually want a clear evidence base:

• the inherent requirements of the role are documented
• medical evidence supports that they can’t safely perform those requirements
• reasonable adjustments were genuinely considered (and tried where feasible)
• consultation occurred and was properly documented
• you have considered redeployment options if available

Because this is such a sensitive area, it’s wise to get tailored advice before taking action. Termination decisions linked to health conditions are rarely “one size fits all”, and the facts matter.

If you’re considering next steps, including whether termination is lawful, it may help to understand the legal framework around termination on medical grounds first.

Practical Tip: Reduce Confusion With Clear Workplace Systems

Work limitations often become messy when there’s no consistent internal process. A few simple systems can make a big difference, such as:

• a written procedure for requesting and reviewing medical certificates and restrictions
• standard modified duties templates
• manager training on what to say (and what not to say)
• a clear approach to breaks, fatigue management, and reporting discomfort early

Where breaks and fatigue are relevant to a work limitation (for example, recovery from injury, medication side effects, or stress-related limitations), make sure your supervisors understand baseline break obligations and what flexibility may be needed. Many businesses find it helpful to have a consistent baseline understanding of Fair Work breaks alongside WHS risk management.

Key Takeaways

• A work limitation is any restriction that affects an employee’s ability to safely perform parts of their role, and it can be temporary or ongoing.
• Your obligations usually sit across WHS duties, Fair Work requirements, anti-discrimination principles, and careful handling of medical information.
• A good process includes clarifying the restriction, identifying inherent requirements, consulting with the employee, and documenting any temporary changes.
• Reasonable adjustments often include modified duties, adjusted hours, workstation changes, additional breaks, or temporary reassignment - what’s “reasonable” depends on your business and the situation.
• If an employee can’t perform the inherent requirements long-term, you should proceed carefully and ensure you have evidence, consultation records, and proper consideration of adjustments before making decisions.

If you’d like help managing a work limitation issue in your business (including reasonable adjustments, medical clearance processes, or termination risk), you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.