Can an Employer Refuse Sick Leave in Australia?

An employer generally cannot refuse paid sick leave when an eligible employee is unable to work because of illness or injury, has accrued paid personal/carer's leave, gives notice as soon as practicable and provides reasonable evidence when requested. An employer can still check whether those conditions are met. It may decline payment if there is no paid balance, question evidence that is incomplete or unreliable, or dispute an absence that is not connected to work incapacity.

The word “refuse” can therefore hide several different issues: denial of the entitlement, rejection of a document, non-payment, a request for more evidence or concern about fitness and safety. Identifying the precise issue is the first step.

This article gives general information about the national workplace relations system, not legal advice. Awards, enterprise agreements, public sector rules, contracts and individual circumstances can affect the outcome.

Key Points

• Paid sick leave is a National Employment Standards entitlement for eligible full-time and part-time employees.
• The employee must be unable to work because of personal illness or injury and have accrued leave available.
• The employee must notify the employer as soon as practicable and indicate the expected absence period.
• An employer can ask for evidence for one day or less, and the evidence must satisfy a reasonable person.
• The requested evidence type must be reasonable, with any award or registered agreement requirements taken into account.
• An online medical certificate should be assessed by its practitioner, content and reliability—not rejected solely because the consultation occurred remotely.
• A valid certificate does not guarantee payment when the employee has no accrued paid balance.
• Disciplining an employee for exercising a workplace right or taking protected illness absence can raise separate legal issues.

Medical Certificates

When Sick Leave Is an Entitlement

Under the National Employment Standards, full-time and part-time employees can use accrued paid personal/carer's leave when they cannot work because of personal illness or injury. The condition can be physical or psychological, temporary or recurring. The legal focus is incapacity for work, not whether a manager considers the illness serious.

The Fair Work Ombudsman's paid sick leave guidance confirms that eligible employees can take the leave when personal illness or injury prevents work. Full-time employees accrue the equivalent of 10 days each year and part-time employees accrue a pro-rata amount based on ordinary hours.

If the employee meets the conditions, an employer should not say “we do not allow sick leave during busy periods” or force annual leave merely because the roster is difficult to cover. Operational inconvenience does not remove the entitlement.

Being new to the role does not automatically remove the entitlement either. The guide to taking sick leave during probation explains notice, evidence and dismissal concerns during that early employment period.

Dociva's sick leave entitlements pillar explains accrual and eligibility. The recommended guide on surgery and sick leave addresses the common misconception that planned treatment cannot produce genuine incapacity.

When an Employer Can Ask Questions

An employer can ask when the employee became unavailable, how long they expect to be absent and whether evidence will be provided. If the document does not cover the full claimed period, lacks practitioner details, appears altered or contradicts other information, the employer can seek clarification.

The employer is not required to ignore obvious reliability concerns. At the same time, concern should be investigated proportionately. A worker should have an opportunity to correct an administrative error or explain a mismatch before being accused of dishonesty.

An employer can also distinguish attendance from incapacity. A routine medical appointment does not automatically mean an employee is entitled to paid sick leave for an entire day. The employee must be unable to work because of illness or injury.

Dociva's article on when an employer can ask for a medical certificate is the assigned evidence pillar. For document disputes, see when employers may question or reject a certificate.

Notice and Evidence Requirements

An employee must notify the employer as soon as practicable, which can be after leave starts if earlier notice was not possible. They must also state the period, or expected period, away.

The Fair Work notice and medical certificates page says employers can require evidence for as little as one day or less. Medical certificates and statutory declarations are examples, but there is no strict universal evidence type. The evidence must convince a reasonable person that the employee was genuinely entitled to leave.

An award or registered agreement may specify when evidence is due or what form it should take. Employees should check the rule before assuming that a verbal explanation or pharmacy receipt will be enough.

If the employee fails to provide requested reasonable evidence, they may not be entitled to payment. Dociva's guides to sick leave without a certificate and what happens when evidence is not provided explain the practical consequences.

Can an Employer Refuse an Online Medical Certificate?

A certificate is not inherently invalid because the assessment occurred by telehealth. The relevant questions are whether it was issued by an appropriate registered practitioner after a proper consultation, appears genuine, covers the relevant dates and supports the claimed incapacity.

The Medical Board of Australia's Good medical practice code applies across settings and requires doctors to be honest, verify certificate content and sign only documents they believe accurate. Remote care does not lower that professional standard.

An employer can make a limited authenticity check or ask for missing information, but a blanket “all online certificates are rejected” policy may fail to consider whether the particular evidence satisfies a reasonable person. The employee can ask which feature of the document is considered deficient.

Dociva's article on online medical certificates in Australia explains medium-neutral validity. A telehealth certificate is still subject to clinical assessment and can be declined by the practitioner.

No Balance Versus No Entitlement

Paid sick leave can only be paid from accrued hours unless a more generous workplace instrument permits leave in advance or provides another entitlement. A valid illness and certificate do not create hours that have not accrued.

If a permanent employee has no paid balance, they can ask whether annual leave, unpaid leave, leave in advance or another arrangement is available. Annual leave is not automatically substituted; it is generally taken by agreement.

Casual employees do not accrue paid sick leave under the National Employment Standards. A casual worker can still notify an employer that illness prevents attendance, but the minimum entitlement does not require paid sick leave. Awards, agreements or contracts may add benefits.

Payroll should explain whether the absence is being refused, approved as unpaid or moved to another category. Clear language reduces the risk of treating a lack of payment as a finding that the illness was not genuine.

Can an Employer Direct a Sick Employee to Work?

An employer should not direct an employee to perform work that reliable evidence says they cannot safely do. If the employer has a genuine concern about the certificate, it can seek clarification through a lawful and proportionate process.

An employee should not attend while medically unfit simply because a manager challenges the leave. They should respond promptly, provide reasonable evidence and seek advice if threatened with discipline. In an emergency or severe illness, immediate healthcare takes priority.

Where the concern is infectious disease, workplace health and safety, healthcare infection control or public health requirements may affect the return date. The issue may be fitness to return rather than entitlement to the past absence.

If an employee is fit for some duties but not all, a capacity assessment or modified-duty plan may be appropriate. A standard sick leave certificate does not necessarily describe safe return-to-work restrictions.

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Workplace Protections and Longer Absences

The Fair Work Ombudsman's protections at work guidance explains that workplace rights are protected and adverse action can include dismissal, detrimental changes or withholding legal entitlements. The reason for an employer's action matters.

There are also specific protections for temporary absence because of illness or injury. These are not unlimited. The Fair Work guidance on long periods of sick leave explains how evidence, absence length and remaining paid sick leave affect one protection from dismissal, while other unfair dismissal, discrimination, workers compensation or general protections may continue.

An employer facing a long or repeated absence should obtain advice rather than treating a leave dispute as a simple attendance problem. An employee should keep certificates, notices, leave balances and written responses.

This article does not determine whether a particular warning, refusal or dismissal is lawful. Those questions require the complete evidence and individual legal advice.

Australian Examples

Properly supported absence: Fatima is full-time, has accrued leave, reports influenza before her shift and supplies a requested certificate. The employer cannot properly refuse the entitlement simply because two colleagues are already away.

Uncovered dates: George submits evidence for Tuesday but claims Monday to Thursday. The employer can ask for evidence addressing the remaining days and withhold a decision while the gap is clarified.

No paid balance: Hana is genuinely unfit and has a valid certificate but has exhausted paid personal leave. The employer can decline paid sick leave while discussing annual leave or unpaid leave options.

Online certificate: Isaac provides a certificate from an identifiable Australian registered doctor following telehealth assessment. The employer should evaluate the actual document and applicable evidence rule rather than rejecting it merely because it was delivered electronically.

Routine appointment: Jade attends a planned check-up but remains fit for her shift. She may need annual leave or an agreed roster change; appointment attendance alone does not establish sick leave incapacity.

What to Do if Sick Leave Is Refused

1. Ask whether the issue is eligibility, paid balance, notice, evidence, dates, authenticity or fitness to return.
2. Request the applicable award, agreement, contract or policy rule.
3. Provide missing reasonable evidence promptly without unnecessary diagnosis detail.
4. Do not alter a certificate; ask the issuing clinic to correct a genuine error.
5. Keep your roster, leave balance, notices, certificate and employer responses.
6. Ask whether another leave category is proposed when no paid balance remains.
7. Use the workplace grievance or dispute procedure.
8. Contact HR, a union, the Fair Work Ombudsman or an employment lawyer for an unresolved serious dispute.

Do not resign or ignore formal correspondence without advice. A short written chronology can help an adviser distinguish the leave entitlement from later performance or disciplinary issues.

More of Our Services

Using Dociva

Dociva currently accepts online sick-leave medical certificate requests for its listed single-day and multi-day products. Each request is independently assessed by an Australian registered medical practitioner; an employer's demand does not guarantee that a document will be issued.

Dociva does not provide backdated medical certificates. Seek assessment promptly, provide accurate symptom and work-impact information, and remain available for phone or video contact if the practitioner considers it necessary.

To request assessment, use the Dociva medical certificate application. Call 000 for severe breathing difficulty, chest pain, signs of stroke, collapse, major bleeding or another emergency instead of delaying urgent care for evidence.

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