How Long Do You Have to Be Separated Before You Can Divorce in Australia?

The rule is simple on paper. One year of separation, then you can apply for divorce.

What trips people up is everything around that rule. What counts as separation? Does living together mean you’re not separated? What if you tried to work things out for a few weeks? And what does divorce actually settle, and what does it leave completely untouched?

Most people assume divorce is the first step. It isn’t. It’s usually one of the last. The decisions that genuinely shape your financial future and your children’s lives happen long before a divorce order is granted, and they happen on a different timeline entirely.

There’s also a common assumption that if you’re still under the same roof, the clock hasn’t started. That’s not how Australian family law works, and believing it can cost you months.

By the end of this article, you’ll understand exactly when you can apply, how the 12 months is counted in practice, and what you should actually be doing while you wait.

What does separation mean in Australian family law?

Separation happens the moment one or both spouses decide the marriage is over and act on that decision. There’s no paperwork to file, no court to notify and no formal process to begin. It can happen even if your spouse disagrees with the decision.

Australian family law operates on the basis of no-fault divorce. The court doesn’t ask why the marriage ended or who was responsible. The only thing it needs to know is that the marriage has broken down irretrievably, which it proves by looking at whether you’ve been separated for 12 months.

What matters is that the separation is genuine. A change in the practical arrangements of your lives, how you live, how you relate to each other, how you hold yourselves out to the world.

Think about what you stopped doing. Sleeping in the same bed. Cooking for each other. Going to events together as a couple. Sharing finances. Those things, taken together, help establish that a relationship has ended in a real sense, not just in name.

Can you be separated and still live under one roof?

Yes, and this surprises more people than you’d expect.

When someone calls convinced they can’t start the clock because they’re still living together, the answer is almost always: the clock may already be running.

Living separately under the same roof is recognised under Australian family law. It requires you to show that despite sharing an address, the relationship had genuinely ended. Courts look at a combination of factors: whether you slept separately, whether you cooked and ate together, whether you socialised as a couple, whether friends and family knew the relationship was over, and whether you still shared finances.

No single factor is decisive. It’s the overall picture that counts.

The practical consequence is that your 12 months can be running from a much earlier date than you realised, even if you haven’t moved out yet.

What you do need, particularly for separation under one roof, is an affidavit of separation. This is a sworn statement, usually supported by a similar statement from someone who knew you both, explaining how your day-to-day life changed and from when. If you’ve separated in this way, document it now. Don’t wait until you apply.

What happens if you get back together for a while?

A single reconciliation attempt of up to three months doesn’t automatically reset the 12-month clock. The months before the reconciliation and the months after it can be added together, as long as the total separation period reaches 12 months.

If the reconciliation lasted more than three months, you generally need to start counting again from the date the relationship ended the second time.

This is one of the areas where the 12-month rule catches people off guard. A couple separates, tries again for five months, then separates again. That five-month period wipes the earlier separation. The clock restarts from the second separation date.

It’s worth being clear about this with yourself. Did you genuinely attempt reconciliation, or were you simply still living together for logistical reasons? The answer matters, and the court can ask.

When can you apply for divorce after separation?

You can apply once you’ve been separated for 12 months continuously, up to and including the date you file your divorce application.

The application is made to the Federal Circuit and Family Court of Australia. You file online through the Commonwealth Courts Portal. If you’re applying jointly with your spouse, the process is more straightforward. If you’re applying on your own, there are service requirements to meet: your spouse must be formally served with the application.

The court doesn’t require you to attend a hearing in most cases. If there are no children under 18, the divorce will generally be determined on the papers. If there are children under 18, the court needs to be satisfied that proper arrangements have been made for them, though this doesn’t mean you attend a hearing. Attendance is not required regardless of whether there are children under 18.

The divorce order takes effect one month and one day after it’s granted.

How long does a divorce take in Australia once you apply?

From the date you file, you’re typically looking at three to five months to receive the divorce order, depending on the court’s workload.

Once the order is granted, it takes effect one month and one day later. So from the end of your 12-month separation period, allow five to six months to hold a divorce order in your hand, though it can be shorter or longer depending on timing and the court’s lists.

That means most people are looking at around 14 to 16 months from the date of separation before the divorce is finalised.

This timeline matters if you want to remarry. But in terms of property and parenting, this timeline is largely irrelevant. Those matters don’t need to wait for divorce, and in some cases they urgently shouldn’t.

Do you need to sort out property settlement before you divorce?

No. But here’s the thing most people get wrong about this.

Property settlement doesn’t depend on divorce. You can start it the day you separate. In fact, waiting until the divorce is done before addressing property is one of the more expensive mistakes people make.

What many people don’t know is that once your divorce order takes effect, you have 12 months to apply for property settlement through the court. After that, you generally lose the right to make a court application without leave. That leave is not guaranteed.

So the divorce order doesn’t resolve your property matters. It sets a deadline for resolving them. If you’ve had your divorce order for 11 months and haven’t dealt with the property, that’s a problem.

Superannuation is part of property settlement too. It doesn’t transfer automatically. If you want to split a superannuation interest, that needs to be done through a formal agreement or court order.

What happens to the children if you separate and divorce?

Parenting arrangements are completely separate from divorce. The court doesn’t deal with them as part of your divorce application.

Australian family law doesn’t use the term “custody”. Instead, it talks about parental responsibility, and about where the children live and how much time they spend with each parent. Both parents generally retain parental responsibility for major long-term decisions about the children’s lives unless a court orders otherwise.

If you and your former spouse can agree on arrangements, those can be documented in a parenting plan or, more formally, in consent orders made by the court. If you can’t agree, either parent can apply to the court for parenting orders.

The only question the court asks is what arrangements are in the best interests of the children. Not which parent behaved better, not who earns more, not who moved out first.

If there are safety concerns, including family violence or risk to a child, the usual processes change. Applications can be made urgently, and the court has powers to act quickly where a child’s safety is at risk.

You don’t need to wait for divorce to sort out parenting arrangements. In fact, having clarity around the children’s living arrangements early is usually better for everyone, including the children.

How much does it cost to get a divorce in Australia?

There is a court filing fee to apply for divorce. The fee changes periodically and varies depending on whether a reduced fee applies in your circumstances. We’d recommend checking the current fee directly with the Federal Circuit and Family Court of Australia or asking us, because publishing a number here that’s out of date helps no one.

Beyond the filing fee, your costs depend on whether you handle the application yourself or engage a lawyer to assist. A straightforward joint application where both parties agree is at the simpler, lower-cost end. A sole application where your spouse is difficult to serve, or where there are complications around the separation date, will cost more.

The divorce itself, as a legal process, is usually the least expensive part of a separation. Property settlement and parenting matters are where costs can become significant.

Do you need a lawyer to apply for divorce?

No. You can apply for divorce yourself through the Commonwealth Courts Portal.

Whether you should is a different question.

For a joint application where the separation date is clear, the marriage was short, and there are no children or complications, many people manage the process without a lawyer. The forms are straightforward.

Where you should get advice: if your separation date is uncertain, if you separated under one roof, if there were reconciliation periods, if you’re unsure your 12 months has run, or if you think the other party will dispute the application.

You should also get advice if you haven’t thought through the property and parenting questions yet. Divorce is one piece of a larger picture, and a lawyer who only processes your divorce without asking about the rest isn’t doing you a service.

What evidence do you need to prove separation?

For a standard sole application where the separation date is obvious and uncontested, the application form itself carries most of the weight. You make a declaration about the date of separation and the court takes that at face value in most cases.

Where evidence becomes important:

• Separation under one roof: You’ll need an affidavit explaining how your day-to-day life changed, supported by a corroborating affidavit from someone with first-hand knowledge of your situation.
• Disputed separation dates: If your spouse claims the relationship ended on a different date, you may need to provide documentary evidence, such as correspondence, financial records or statements from people who knew you both.
• Marriages of less than two years: See below.

Evidence doesn’t have to be formal or complicated. Text messages, emails, records showing changed financial arrangements, or a statutory declaration from a friend who knew about the separation can all be relevant.

Can you divorce if you were married less than two years?

Yes, but there’s an additional step.

If your marriage was less than two years old, you need to either attend counselling and provide a certificate confirming you’ve done so, or get leave from the court to apply for divorce without doing so. The court will grant leave in certain circumstances, including where there has been family violence.

This requirement catches some people off guard. If your marriage was short, check this rule before you file.

What is the difference between separation, divorce, and property settlement?

These three things are related but they are not the same, and confusing them causes real problems.

Separation is the end of your relationship. It’s a fact, not a legal process. It’s the date your marriage functionally ended.

Divorce is the legal dissolution of the marriage. It ends your status as a married person. It does not divide your property, deal with your superannuation or sort out arrangements for your children.

Property settlement is the process of dividing what you and your spouse own and owe. It can happen at any time after separation. It doesn’t require divorce, but once your divorce order takes effect, you have 12 months to apply to the court if you haven’t already agreed.

People often put property settlement off until after the divorce is done. That feels logical, but it creates a risk. The deadline after divorce is real and the consequences of missing it are significant.

What should you do next if you are separating?

The honest answer for someone trying to work out where to start is this: work out your separation date, document it, and get advice on the full picture sooner rather than later.

The 12-month period before you can apply for divorce isn’t dead time. It’s usually the most important period in your family law matter. Property questions, parenting questions, superannuation questions and financial support questions are all live during that time.

If you’re not sure where any of this lands for your situation, that’s a conversation worth having now rather than in 12 months when some of your options may have narrowed.

A few things worth doing now, regardless of where you are in the process:

• Write down the date you separated and note how you know that’s the date.
• If you’re still living together, document what has changed in your day-to-day arrangements.
• Don’t make major financial decisions, such as selling assets, taking on debt or moving money, without getting advice first.
• If there are children, think about what arrangements will work in practice and whether those need to be formalised.
• If there are safety concerns, speak to a lawyer about your options urgently.

You don’t have to have it all worked out before you make a call. You just need to start.

Book a confidential, no-obligation chat with the C + K Family Lawyers team to talk through your situation and work out what needs to happen next.

Frequently asked questions about separation and divorce

How do I prove the date we separated? In most cases, your own declaration on the divorce application is sufficient. Where the date is disputed or where you separated under one roof, you’ll need an affidavit and, ideally, a supporting statement from someone who knew your situation at the time. Documents with dates attached, text messages, emails, changed financial records, are all useful.

Can my spouse stop me from getting a divorce? No. Under Australian family law, one spouse cannot prevent the other from obtaining a divorce. If the only requirement is 12 months of separation, and that’s satisfied, the court will grant the divorce regardless of whether the other party consents or opposes it.

What if I don’t know where my spouse is? You can still apply for divorce. There are provisions for substituted service, where you serve the application by other means, or in some cases, the court can dispense with service altogether. Get advice if you can’t locate your spouse, because the process has specific steps that need to be followed correctly.

Does divorce affect my will or my superannuation beneficiary nominations? Yes, in important ways. A divorce order can affect the operation of a will made during the marriage and may affect certain beneficiary nominations. You should review your estate planning documents as soon as possible after separation, and again once the divorce is finalised.

How does family violence affect the divorce or separation process? Family violence doesn’t change the 12-month separation requirement, but it can affect how the process is managed practically. Safety planning, urgent parenting orders, domestic violence orders through the Queensland Magistrates Court, and careful management of service of documents are all relevant. If family violence is a factor in your situation, tell your lawyer at the outset.

This article is general information only and is not legal advice. Family law outcomes depend on your individual circumstances. For advice about your situation, speak with a qualified family lawyer.