Parental Leave Notice to Your Employer: The 10-Week and 4-Week Rules, and What to Do If You Are Late

Unpaid parental leave has a paperwork rule most people meet too late: your employer needs written notice at least 10 weeks before the leave starts, and your dates confirmed again at least 4 weeks before. Count it back from a real due date and the first deadline lands earlier than expected. A baby due on 1 March 2027, with leave starting six weeks before the birth, puts the notice date at 9 November 2026. That was Monday of this week.

Claim Done writes that notice from your answers for a flat A$29: the first parental leave notice to your employer, or the follow-up letter confirming or changing your dates. You read it before anything goes anywhere. This guide covers who is entitled, what the notice must say, the dates that catch people out, and what to do if you have already missed the 10 weeks.

Who is entitled to unpaid parental leave

The rules come from the National Employment Standards, and the Fair Work Ombudsman sets them out on its Applying for parental leave page (last updated 2 September 2026). You are eligible if you have, or will have, responsibility for the care of a child and you have worked for your employer for at least 12 months. The 12 months is measured before the date or expected date of birth if you are pregnant, before the date of the adoption, or when the leave starts.

Casuals are not shut out. A casual employee must have worked for the employer on a regular and systematic basis for at least 12 months, and have a reasonable expectation of that work continuing had it not been for the birth or adoption.

Partners qualify on the same test. So do adoptive parents, where the child is under 16. If you are having another child and have stayed with the same employer, you do not need to work a fresh 12 months first.

Not there yet? You can still write to your employer. It is a request, not a notice, and the wording should say so.

What the 10-week notice has to say

The Ombudsman’s list is short. Your notice needs to:

• be in writing
• say how much leave you want to take
• give the start and finish dates, if you are taking continuous leave
• state the total number of days you intend to take, if you are taking flexible parental leave.

That is the whole legal content. The Ombudsman lists section 74 of the Fair Work Act 2009 among the sources for that page, and nothing in its summary asks you to justify the leave, explain your plans for childcare, or promise anything about your return.

Where notices go wrong is in the dates. “From early February for about a year” is not a start and finish date. “From Monday 18 January 2027 to Friday 14 January 2028” is. A manager, a payroll officer and a replacement hired on a fixed-term contract will all work from the dates in your letter, so write them the way you would want them read back to you in twelve months.

A conversation with your manager does not count, and neither does a message in the team chat saying you are expecting. Tell them in person first if you like. Then put it in writing and keep a copy.

The 4-week confirmation most people forget

The second deadline gets less attention and causes more arguments. At least 4 weeks before continuous leave is due to start, you have to confirm your start and end dates with your employer, along with any changes to them.

Run the March example forward. Leave starting 18 January 2027 means the confirmation is due by 21 December 2026, which for many workplaces is the last working Monday before the Christmas shutdown. Send it the week before. An inbox nobody opens until January is a poor place for a deadline.

The same date matters to partners. A partner planning to start leave on a 1 March due date owes their own 10-week notice by 21 December 2026.

When your leave can start

According to the Ombudsman’s Types of parental leave page, a pregnant employee taking continuous leave can start it up to 6 weeks before the expected birth, or earlier if the employer agrees. The leave has to end within 24 months of the birth. A partner’s leave must start and end within those same 24 months. Adoption leave starts on the date of placement, or later where the employee has or will have responsibility for the child’s care.

The entitlement is up to 12 months of unpaid leave, with a right to request up to 12 months more. Each parent has their own 12 months, and they do not have to take it at the same time.

One thing to plan for: if you want to keep working inside the last 6 weeks before your due date, your employer can ask for a medical certificate, to be provided within 7 days, saying whether you are fit for work. No certificate, or a certificate saying you are not fit, and the employer can direct you to start your leave.

Flexible days: the second notice

Part of the 12 months can be taken as single days or short blocks instead of one stretch. The cap depends on the child’s date of birth or placement: up to 120 days for 1 July 2025 to 30 June 2026, and up to 130 days on or after 1 July 2026. Flexible days can be used until the child’s second birthday, including after you are back at work.

Two notices apply here. Your 10-week notice must state the total number of flexible days you intend to take. Then you give at least 4 weeks’ notice of the specific days. Once given, a flexible day can be changed if your employer agrees.

People returning part-time use these days for the daycare transition, vaccinations and appointments. If that is your plan, name the total now. Adding it later depends on your employer’s goodwill.

If you cannot give 10 weeks

Babies arrive early, adoptions move fast, and some people simply did not know the rule. The Ombudsman is clear on this point: if you cannot give 10 weeks’ notice, you give notice as soon as possible, which may be after the leave has started, and you are still entitled to take the leave. Its own example is a premature birth.

So a late notice is not a lost entitlement. It is a reason to send the letter today instead of next week, with the dates as they now stand.

Evidence, extensions and your job

Your employer can ask for evidence of the expected date of birth, such as a medical certificate, or of the date of placement and the age of an adopted child. Provide it when asked. The Ombudsman’s page says an employee who does not provide requested evidence will not be entitled to the leave, which is why a good notice offers it up front.

Planned for less than 12 months and want longer? You can extend up to the 12 months by written notice at least 4 weeks before your current end date, with the new end date in it. Going beyond 12 months is a request, also in writing and also at least 4 weeks out. Your employer must answer in writing within 21 days and can refuse only on reasonable business grounds after genuinely trying to reach agreement. The detail is on the Ombudsman’s Extending parental leave page. If you want different hours when you come back, that is a separate request with its own rules, covered in our guide to flexible work requests and the 21-day rule.

At the end of the leave you are entitled to come back to the job you had before, even if someone else has been filling it.

Parental Leave Pay is a separate claim

The notice to your employer is about time off. Money is a different process. Leave under the National Employment Standards is unpaid, and the Australian Government’s Parental Leave Pay is claimed from Services Australia, which has its own income test, work test and claiming timeframes. Your employer may also have a paid scheme in your contract or enterprise agreement, usually with its own form.

Giving your employer notice does not lodge a claim with Services Australia, and claiming the payment does not give your employer notice. Do both.

Getting the notice written

You can write this letter yourself, and the Fair Work Ombudsman publishes a free template. What Claim Done adds is a letter built around your situation instead of blanks to fill in. You answer a short set of questions: which letter you need, how long you have worked there, the due or placement date, who it goes to, and your dates or flexible days. Claim Done’s document engine produces a notice that states your leave as dates, says it is given under section 74 where the 12-month rule is met, commits to the 4-week confirmation, and offers evidence if your employer wants it. If you are under 12 months, it is written as a polite request instead.

The tone is warm and businesslike, friendly or formal as you choose. No threats and no jargon, because this is a letter to people you will work with again.

It costs A$29, once, with no subscription. Claim Done is not a law firm. You review and approve the letter, then we email it for you or you download it and send it yourself. Other document prices are on the pricing page.

If your leave starts in the first quarter of 2027, your 10 weeks are either running or already due. Start your parental leave notice on Claim Done, answer the questions in a few minutes, and have dated written notice with your employer today.

Frequently asked questions

How much notice do I have to give my employer for parental leave in Australia?

The Fair Work Ombudsman says an employee has to give at least 10 weeks' written notice before starting unpaid parental leave. Then, at least 4 weeks before continuous leave starts, you confirm your start and end dates and any changes. If you are taking flexible days, you also give at least 4 weeks' notice of the specific days.

What happens if I give less than 10 weeks' notice of parental leave?

You give notice as soon as possible, which the Fair Work Ombudsman says may even be after the leave has started. An employee who cannot give the full notice is still entitled to take the leave as long as notice is given as soon as possible. A premature birth is the Ombudsman's own example.

Does a parental leave notice have to be in writing?

Yes. The notice has to be in writing, say how much leave you want to take, and give the start and finish dates for continuous leave or the total number of days for flexible leave. Telling your manager in a meeting is a sensible courtesy, but it is the written notice that meets the rule.

Can my employer ask for proof of my due date?

Yes. An employer can ask for evidence of the expected date of birth, such as a medical certificate, or of the date of placement and the age of an adopted child. The Fair Work Ombudsman says an employee who does not provide the evidence asked for will not be entitled to the leave, so provide it promptly.

Is giving notice to my employer the same as claiming Parental Leave Pay?

No. The notice to your employer is about unpaid leave under the National Employment Standards. Parental Leave Pay is an Australian Government payment claimed separately from Services Australia, with its own tests and claiming timeframes. You need to do both.