Published on Mar 11, 2025
Taking extended time off work due to illness or injury can be challenging. You might be worried about your job security, finances, or how to stay in the loop at work while you recover. Extended sick leave – whether it's a few weeks or several months – is sometimes necessary to focus on your health. The good news is that in Australia there are systems in place to support you during this time, and there are steps you can take to manage your leave effectively.
In this article, we'll take a friendly, down-to-earth look at how to manage an extended sick leave. We'll cover what extended sick leave means and its implications, your workplace rights and responsibilities, practical tips for taking care of yourself, how to keep communication open with your employer, and planning for a smooth return to work. Along the way, we'll also touch on important topics like medical certificates (for instance, how a medical certificate online Australia can be used when seeing a doctor in person is tough) and point you toward useful resources. Let's dive in!
Extended sick leave generally refers to a longer-than-usual absence from work due to health reasons. We’re not talking about a day or two off for a cold – this is about longer-term illnesses or injuries that might keep you away from your job for an extended period. It could be a continuous stretch of leave (say, recovering from surgery or undergoing cancer treatment), or it might be recurrent absences that add up over time due to a chronic condition.
In Australia, if you're a part-time or full-time employee and you get sick, you are entitled to take sick leave – it's one of your 11 basic employee rights included in the National Employment Standards (NES).. You can take sick leave if you have an illness, injury or an unexpected emergency (this includes mental health conditions or pregnancy-related illness). Under the NES, full-time workers accrue 10 days of paid sick leave per year, and part-time workers get a pro-rata (proportional) amount. Any unused sick leave carries over into the next year. Usually, a typical bout of illness might only use a few of those days. But if you’re dealing with a serious health issue, you could easily use up all your paid sick leave and still need more time off.
So, what happens if you need to be off work longer than your sick leave covers? This is where extended sick leave comes in. It often means moving from paid leave to unpaid leave once your paid entitlements run out. Many Australians face this situation each year – for example, managing a long-term health condition significantly increases the likelihood of taking extended time off work. In other words, you're not alone if you find yourself needing a lengthy absence; it's a common challenge and there are established ways to handle it.
Taking extended sick leave can have several implications:
The key is understanding your rights and having a plan. Extended sick leave is meant to help you recover without the added stress of work, so using it when you need it is actually a smart move for your long-term health – and even for your employer (since returning too soon could make things worse). Next, let's talk about what you and your employer should expect from each other during a long illness-related absence.
When you're on extended sick leave, both you and your employer have certain rights and responsibilities. It's important to know these so you can ensure you're being treated fairly and that you're fulfilling your obligations on your end too.
Your right to take sick leave: If you're sick or injured and can't work, you are entitled to take sick leave. This is a basic employee right in Australia. You should notify your employer as soon as possible that you're taking sick leave and let them know roughly how long you'll be away (if you know). Sometimes you might not know how long you'll need – it's okay to say that and then keep your employer updated as things progress.
Paid vs unpaid leave: While you have sick leave accrued, your time off will be paid as normal. But if you run out of paid sick leave, you can usually take additional time off as unpaid leave. There isn't a fixed "extended sick leave" allowance in the NES beyond your paid leave, but employers often grant unpaid sick leave if you have a genuine medical need. In fact, your employment contract or company policy might allow extra unpaid sick leave for long-term illnesses. You might also be able to use other accrued leave types – for example, annual leave or long service leave – to continue getting paid while you're off, if you choose and if your employer agrees. Always check your contract or enterprise agreement: employers can give more generous leave than the legal minimum, but they can't give you less.
Job protection: One big worry is, "Can I get fired for being on sick leave for too long?" Australian law provides protection, but with some limits. Under the Fair Work Act, an employer cannot dismiss you because you are absent due to illness in the short term, as long as you provide evidence. Specifically, if you’re away for less than 3 consecutive months (or a total of less than 3 months over the last 12 months) and you have evidence (like medical certificates) for that period, you're protected from dismissal due to your absence. If you are using paid sick leave, you're also protected no matter how long you're away.
However, if your absence extends beyond 3 months and you've exhausted any paid sick leave, that specific protection no longer automatically applies. This means that after 3+ months of continuous absence (or 3+ months total in a year of off-and-on absences), an employer could legally consider ending your employment if you have no paid leave left and you still can’t perform your job. But – and this is important – they must still handle it fairly and lawfully. Even after that period, other protections kick in. For example, it could be unlawful to sack you because of a disability (which can include a long-term illness) under anti-discrimination laws. State and territory workers’ compensation laws (if your injury or illness is work-related) may also protect your position. And any dismissal can be challenged as unfair if it's harsh or unreasonable. In short, employers should be very cautious about terminating someone who’s on extended sick leave, and most will try to work with you before it ever gets to that point.
Notice and medical evidence: As an employee, you have a responsibility to keep your employer informed and provide proof of your illness when required. Let your boss or HR know you're sick as soon as you can – this might even be after you've already left work or missed a day, which is okay. While a quick phone call or email is fine for the initial notification, you'll typically need to provide a medical certificate if you take more than a couple of days off in a row. In fact, your employer has the right to ask for evidence for as little as one day off if they choose. This evidence usually means a medical certificate from a doctor or a statutory declaration (a written, sworn statement) confirming you're unfit for work. For extended leave, expect to provide medical certificates covering your time away – for example, a certificate might say you need two weeks off, and if you end up needing more, you'll give another certificate to cover the next period, and so on. If you don't give your employer reasonable evidence when they ask, you might not be entitled to be paid for your sick leave, so it's in your best interest to get that paperwork in.
Privacy of your medical information: A common concern is how much you need to tell your employer about your illness. The short answer is: not more than you're comfortable with. You do not have to divulge all the details of your medical condition to your employer if you don't want to. Typically, a medical certificate simply states that you're unfit for work (and maybe broadly that it's due to illness or injury) and the dates you should be off – it doesn't need to list the specific diagnosis. It's perfectly fine to keep details private. Your employer should respect your privacy and keep any information you do share confidential. They are not allowed to share your health information with others without your consent. So if you're worried about office gossip, know that your medical info is on a need-to-know basis. You might choose to tell your colleagues something like "I'm taking some time off for health reasons" without specifics, and that's entirely up to you.
Employer responsibilities: On the flip side, what should your employer be doing? Firstly, they should allow you to take your entitled sick leave. They shouldn’t pressure you to work if you're clearly unwell and have followed the correct process. They also must treat you fairly – no disadvantaging you because of your illness. In fact, treating an employee less favorably due to a health condition could be a form of unlawful discrimination. Employers are generally expected to make "reasonable adjustments" for employees who have illnesses or disabilities. This means if you're able to work some but not all of your normal duties (or hours), they should see if changes can be made to help you continue working or to support your return. For example, an employer might temporarily modify your workload, provide flexible hours, or even allow work from home if that's feasible. We’ll talk more about planning a return to work with adjustments later. Importantly, your employer should also keep your job open for you (at least for that protected period of 3 months, and hopefully longer if there's progress toward you coming back). They might hire a temp or redistribute duties in the meantime, but it should be understood that it's your position to return to once you're well.
Knowing these rights and responsibilities helps set the stage. You know what you're entitled to, what you need to do, and that there are legal safety nets in place. Next, let's get into the practical side: managing your health and the necessary paperwork during a long leave.
Managing an extended sick leave isn't just about feeling unwell and staying in bed; there's also a bit of paperwork involved. Staying organized with documentation will make your life (and your employer’s life) much easier, and it can ensure you get all your entitlements.
Get the right medical certificates: As mentioned, you'll likely need a medical certificate covering your absence. When you visit your doctor, explain that you need a certificate for work stating that you are unfit for duties and how long you’ll be off (or when you'll be reviewed next). Doctors in Australia are very used to writing these – it's a normal part of managing sick leave. If you're seeing specialists or being hospitalized, those doctors can also provide certificates or reports. Make sure the certificate has the basic info: date, that you were examined, the doctor’s details, and how long you're advised to be off work.
Frequency of certificates: For extended absences, you might not get one certificate to cover the entire period all at once. Often, it's managed in chunks – for instance, your GP might certify you for the next three weeks and then want a follow-up to reassess you. After a review, they might extend your leave further. This approach is actually helpful because it gives both you and your employer an updated idea of your condition as time goes on. Always send your medical certificates to your employer (usually to your manager or HR) as soon as you can, so they have them on record.
Medical certificates online: These days, you might not even have to go into the clinic for a certificate if you're too sick to travel. It’s possible to obtain a medical certificate online in Australia. Online medical certificates are legally recognised in Australia as long as they're issued by a registered doctor or other qualified practitioner. In practice, that means an online certificate from a legitimate service (with a real consultation) is as good as one from a clinic. Just make sure any certificate you submit – online or paper – has all the required details and would convince a reasonable person that you genuinely needed the time off. In short, it should be credible medical evidence of your illness.
Keep personal records: It's a good idea to maintain your own folder (physical or digital) of all your documentation – medical certificates, any forms you submitted, emails about your leave, etc. This helps you keep track of dates and also serves as a backup in case anything gets lost. It can be surprisingly easy to forget exactly when you started your leave or how many certificates you've provided if you're off for months, so staying organized will help.
Know your company's process: Check your employee handbook or ask HR about your company's preferred process for sick leave documentation. Some workplaces have specific forms or an online system for submitting leave. Others might require you to email your medical certificates to a particular person or upload them somewhere. Follow the proper channels so nothing slips through the cracks. If you're unsure, just ask – it shows you're being proactive and responsible.
One thing to avoid is going silent without updating your employer. If your certificate covers up to a certain date and you realize you won't be back by then, be proactive: go back to your doctor for an extension and inform your employer as soon as possible. Regular, clear paperwork not only keeps you in the right, it also signals to your employer that you're managing your absence responsibly.
Being away from work due to illness means your top priority should be your health. It sounds obvious, but it's easy to let worries about work or other stressors distract from recovery. Here are some tips to help you look after yourself during your extended sick leave (remember, this time is for you to get better):
Above all, remember that extended sick leave is about getting you back to full health. Taking care of yourself is your main "job" during this period. Being kind to yourself mentally and physically will help you heal faster. Recovery often isn't linear – there are good days and bad days – so celebrate the good and be gentle on the bad.
Maintaining some communication with your employer during your extended sick leave can make a big difference. It helps manage expectations on both sides and keeps you connected to your workplace (so it’s not a total mystery what you’ll be coming back to). The key is finding the right balance – you don't need to be in daily contact (you're on leave, after all!), but you also don't want to disappear for months with no updates. Here are some tips for keeping the lines open in a low-stress way:
By keeping communication open and clear, you're showing your employer that you're responsible and that you care about your job, even though you can't be there right now. Most employers will appreciate that. It also sets the stage for a smoother transition when you're ready to return because you'll both be on the same page.
When the day finally comes that you’re ready (or cleared by your doctor) to return to work, it's often both exciting and a bit nerve-wracking. You might worry about catching up or how you'll readjust to the work routine. Planning ahead can alleviate a lot of these concerns. Here's how to approach your return after an extended sick leave:
A well-planned return sets you up to get back to work smoothly and with confidence. It's often a good idea to have a follow-up chat with your manager after a few weeks back, just to make sure everything is going well for both you and them. By taking it step by step, you’ll be back in the groove before you know it, bringing your experience and resilience gained from this challenging time.
Managing an extended sick leave can certainly be stressful, but with the right approach and support, you can get through it while protecting both your health and your job. Knowing your entitlements and keeping a good rapport with your employer will ease a lot of worries. Hopefully, the time off gives you the chance to recuperate fully, and when you do go back to work, you'll be ready to hit the ground running (or at least walking briskly!).
Remember: Your well-being is the top priority. Jobs and careers span decades, and a few months away to heal is a worthwhile investment in your future. Take care of yourself, use the resources available, and don't be afraid to ask for help or information at any stage. You’ve got this, and there are plenty of people and policies out there to support you on the journey back to wellness and work.
Q: How long can I be on sick leave before I risk losing my job?
If you provide proper medical evidence, you are generally protected from being fired because of your absence for up to 3 months (consecutively, or a total of 3 months over 12 months). As long as you're within that period or still using paid sick leave, your employer cannot terminate you just for being sick. After 3 months, if you've used all your paid sick leave, that specific protection ends – but even then, an employer must consider other laws (like anti-discrimination laws) and follow a fair process. They can’t simply fire you without a good reason and proper procedure.
Q: Do I get paid during an extended sick leave?
You’ll get your normal pay as long as you have paid sick leave available (those days you’ve accrued). Once your sick leave balance runs out, any additional time off is usually unpaid unless you use other paid leave like annual leave, if your employer agrees. Some workplaces or awards might offer extra paid leave in special circumstances, but generally, beyond your accrued personal (sick) leave, it becomes leave without pay.
Q: What if I run out of sick leave – can I use other leave types?
Possibly, yes. You can talk to your employer about using annual leave or even long service leave (if you’re eligible for it) to cover some of your time off once sick leave is exhausted. Many employers are flexible about this since it allows you to continue being paid. It really depends on your company’s policies and your own leave balances. Always discuss the options with HR or your manager; they’ll usually help you make use of any leave you have accrued to get through your recovery period.
Q: Do I need to give my employer medical certificates for a long sick leave?
Yes, typically you do. Employers can ask for a medical certificate to verify your illness, and it’s standard practice for extended absences. You should provide a doctor’s certificate covering the dates you're off work (and update it if your leave gets extended beyond the original timeframe). This documentation is what entitles you to sick leave and also protects you under sick leave provisions. Without it, your employer could refuse to pay sick leave, or even consider your absence as unauthorized, so make sure to keep those certificates coming as needed.
Q: Can my employer fire me while I'm on extended sick leave?
Not just for being on sick leave in the short term, no. As mentioned, if you’ve been on sick leave for less than 3 months and have provided the required evidence, they cannot fire you simply because of your illness. If you’re absent beyond 3 months and you’ve run out of paid leave, legally they could contemplate termination, but they must still follow fair procedures and ensure they’re not violating any other protections. It’s a last resort; most employers will try to work something out (like adjustments or a longer leave) before considering dismissal. And if they do terminate after a long absence, you may have grounds to challenge it if it’s not handled properly.
Q: How much detail about my illness do I have to share with my employer?
Only as much as you’re comfortable with. You need to inform them that you're unfit for work and roughly how long you’ll be off, and provide medical certificates as proof. But you don’t have to disclose your exact diagnosis or personal medical details if you prefer not to. A medical certificate usually doesn’t state the specific condition, just that you’re under medical care and for how long you should be off. Your privacy is protected by law, so your employer shouldn’t push for more information than necessary.
Q: What can I do to make the most of my time on sick leave?
Focus on recovery and self-care. Follow your doctors’ advice, establish healthy routines (eat well, rest, do light exercise if you can), and tend to your mental well-being. Stay connected with friends and family so you don’t feel too isolated. You could also use the time to catch up on books, shows, or a hobby you enjoy – something relaxing that keeps your spirits up. Try not to worry about work; if it helps, arrange a periodic check-in with a colleague just so you feel in the loop, but otherwise allow yourself to step away. Think of this time as an investment in getting better.
Q: How should I prepare for returning to work after a long illness?
A bit of planning goes a long way. Keep your employer in the loop about roughly when you expect to return, and discuss any adjustments you might need (for example, lighter duties or flexible hours initially). Make sure to get the okay from your doctor that you’re fit to return, and ask for a medical clearance letter if your work requires one. Before you go back, you might reach out to a colleague or your manager to get up to speed on any changes at work. On your first days back, take it slow and don’t hesitate to ask for support or refreshers on things you missed. The goal is to ease back in smoothly, so plan with that mindset.
Q: What if I come back to work and realize I’m not fully ready?
If you return and find you’re struggling, let your employer know sooner rather than later. Maybe you came back full-time and it’s too exhausting, or certain tasks are harder than expected. It’s better to have an honest conversation and see if you can adjust your work arrangement than to suffer in silence. You might be able to temporarily reduce your hours, adjust your duties, or even take a bit more time off if absolutely necessary (with your doctor’s support). Remember, your health comes first. Open communication is key here – most employers will want to help you succeed rather than see you relapse.
This medical blog provides general information and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult with your regular doctor for specific medical concerns. The content is based on the knowledge available at the time of publication and may change. While we strive for accuracy, we make no warranties regarding completeness or reliability. Use the information at your own risk. Links to other websites are provided for convenience and do not imply endorsement. The views expressed are those of the authors and not necessarily representative of any institutions.
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