How long is a medical certificate valid for in Australia?

Question

Accepted Answer

There’s no fixed limit. A medical certificate is valid for the exact dates your practitioner writes on it, based on their clinical assessment of your condition. This could be one day or several months.

Typical validity periods by leave type

Absence type Typical duration Clinical assessment required Common examples Short-term personal leave 1-3 days Basic assessment confirming you cannot work due to a common, self-limiting illness. Cold, flu, migraine, gastro.Carer’s leave 1-3 days Confirms an immediate family member or household member needs your care due to illness, injury, or an emergency.Caring for a sick child or a partner recovering from minor surgery.Extended medical leave 1-4 daysMore detailed clinical review, often with a follow-up plan or referral.Post-surgical recovery, a significant infection or mental health leave.Long term/ WorkCover Up to 14 or 28 days per certificate Comprehensive assessment tied to a workers&#8217; compensation claim. By law, initial WorkCover certificates are usually capped at 14 days, with subsequent certificates generally lasting up to 28 days before requiring review. Serious injury, minor surgery recovery, or a chronic condition needing extended time off.

Rules governing medical certificate validity

There is no fixed legal limit, but several rules affect how long a certificate is valid.

Doctor’s discretion: The dates on your certificate depend on your condition. Your GP or Nurse Practitioner will decide the dates based on their clinical assessment.

Employer notice and evidence: Under the Fair Work Act, your employer can ask for evidence when you take sick or carer’s leave, even for a day or less. Your workplace may have additional requirements, so check your workplace policy or agreement.

Certificate expiry and extensions: If you are still unwell after your certificate expires, consult your healthcare practitioner again for a new assessment. They may issue a new certificate if needed. Certificates generally cannot be backdated.

Multiple jobs: If you have more than one job, you may need a separate certificate for each employer. Your healthcare practitioner will assess whether you can do the specific duties of each job, rather than simply stating that you are unfit for all work.

Hola Health provides a doctor&#8217;s certificate online via telehealth (also known as a medical certificate), if clinically appropriate. Australian employers generally recognise certificates, and they&#8217;re available 24/7. If approved, we deliver your certificate by email or SMS, usually within minutes.

Absence type	Typical duration	Clinical assessment required	Common examples
Short-term personal leave	1-3 days	Basic assessment confirming you cannot work due to a common, self-limiting illness.	Cold, flu, migraine, gastro.
Carer’s leave	1-3 days	Confirms an immediate family member or household member needs your care due to illness, injury, or an emergency.	Caring for a sick child or a partner recovering from minor surgery.
Extended medical leave	1-4 days	More detailed clinical review, often with a follow-up plan or referral.	Post-surgical recovery, a significant infection or mental health leave.
Long term/ WorkCover	Up to 14 or 28 days per certificate	Comprehensive assessment tied to a workers’ compensation claim. By law, initial WorkCover certificates are usually capped at 14 days, with subsequent certificates generally lasting up to 28 days before requiring review.	Serious injury, minor surgery recovery, or a chronic condition needing extended time off.

How long is a medical certificate valid for in Australia?

Typical validity periods by leave type

Rules governing medical certificate validity

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