Is a 50/50 Property Split Automatic After Separation?
Author: Andrea Hooper
Founder I Separation Specialist
One of the most common assumptions about property settlement is:
“We just split everything 50/50, don't we?”
Sometimes an equal division may be appropriate. But there is no automatic rule in Australian family law that property must be divided 50/50 after separation. Nor is there a standard percentage that applies to every marriage or de facto relationship. Instead, the outcome depends on the circumstances.
Where does the idea of 50/50 come from?
It makes intuitive sense. Two people have shared a relationship, so dividing everything equally can feel like the obvious starting point. And for some couples, after considering the relevant factors, 50/50 may indeed be an appropriate outcome.
But family law does not simply say: “Add everything up and give each person half.”
Under the current property-settlement framework, the Court must identify the parties' property and liabilities, consider their contributions, assess relevant current and future circumstances and only make an order if the overall result is just and equitable.
So the question isn't: “What is the standard split?”
It is: “What does a fair outcome look like in these circumstances?”
The first question is: what is the financial position?
Before anyone can meaningfully discuss percentages, you need to know what the percentage is being applied to. Consider a couple who say: “We're happy with 50/50.”
That agreement doesn't tell us much unless we also know:
If one person thinks the net financial position is $1 million and the other thinks it is $1.4 million, agreeing on 50/50 hasn't actually resolved the problem.
This is why the first part of a sound property settlement is disclosure and an accurate financial picture.
Contributions don't mean “who earned the most?”
After the property and liabilities have been identified, contributions are considered. Financial contributions matter.
But they are only one part of the picture.
The Family Law Act specifically recognises:
This is an important concept. One person may have earned significantly more income. The other may have spent more time caring for children, managing the household or supporting the family in ways that enabled the higher-income earner to work.
Family law does not simply add up everyone's wages over the relationship and award property accordingly.
What about assets someone owned before the relationship?
Assets brought into the relationship can be relevant to the contributions assessment.
For example, one person may have entered the relationship with:
That does not necessarily mean they simply “get that asset back” dollar-for-dollar at the end. Nor does it mean the contribution is irrelevant. Its significance depends on the circumstances, including the nature and length of the relationship and what happened financially over time.
This is an area where individual legal advice is particularly useful because seemingly similar relationships can produce very different assessments.
What about an inheritance or money from parents?
The same principle applies. An inheritance or substantial financial gift from family can be relevant. But there isn't a universal rule such as: “Inheritance is excluded from the property settlement.” or “Everything becomes 50/50 once you're married.”
When the contribution was received, how it was used, the length and circumstances of the relationship, and the broader financial position can all matter.
Then the law looks forward, not just backward
Even after contributions have been considered, the analysisis not necessarily finished. The Court must also consider relevant current and future circumstances.
The legislation includes factors such as:
This can be particularly important where separation leaves two people in very different positions.
A simple example
Imagine a couple who have been together for 20 years.
During the relationship:
At separation, however:
That does not automatically mean the lower-income person receives a particular additional percentage. But those current and future circumstances may be relevant when considering the overall settlement.
That is why: equal contributions do not necessarily mean an equal final division.
What if one person earned almost all the money?
Higher earnings can be an important financial contribution. But the assessment does not stop there. Imagine a long relationship where one person worked in a demanding, highly paid career while the other:
Looking only at income would ignore significant contributions recognised by family law. The legislation expressly includes contributions as homemaker and parent alongside financial and other non-financial contributions.
What if one person didn't work?
The answer is not automatically: “They didn't contribute financially, so they receive less.”
Why they were not working matters. They may have:
Again, this is why the circumstances of the relationship matter more than a simple mathematical formula.
Can family violence affect the property settlement?
Yes, where its economic effect is relevant. Since 10 June 2025, the Family Law Act expressly recognises the economic impact of family violence within the property-settlement framework.
It can be relevant to:
Economic or financial abuse is also expressly recognised within the family-violence framework. This does not create an automatic percentage adjustment whenever family violence is alleged. Its relevance depends on the evidence and the economic effect in the particular circumstances.
So should we start negotiations by arguing about percentages?
Usually, there is a more useful starting point. Before debating: 50/50 versus 55/45 versus 60/40
first establish:
1. What is the financial position?
Complete disclosure and agree on the balance sheet.
2. What contributions may be relevant?
Understand the history of the relationship.
3. What current and future circumstances matter?
Look at the position each person is moving into.
4. What do different settlement scenarios actually look like?
Model the outcomes.
5. What does each person's independent legal advice say?
Understand the legal context.
Only then does a percentage become genuinely meaningful.
Why scenarios can be more useful than percentages
Suppose the total net property position, including the way you have chosen to treat superannuation, is $2 million.
A 55/45 division sounds straightforward. But there may be dozens of ways to implement it.
One person might:
Or:
Or:
Each may produce a similar percentage. But they can create very different financial futures. That is why at Simplify we don't see the percentage as the whole settlement. It is one part of the settlement.
Fair doesn't always mean identical
This can be a difficult idea during separation because people naturally compare outcomes.
“Why are they getting more?” can quickly become emotionally loaded. But a property settlement isn't necessarily trying to ensure both people leave with identical assets, incomes or lifestyles. It is considering the parties' property and liabilities, their contributions, their relevant current and future circumstances, and whether the overall outcome is just and equitable.
Sometimes that produces 50/50. Sometimes it does not.
And “not automatic” works both ways
It's equally important not to assume that because one person:
they will necessarily receive significantly more than 50%. Likewise, having greater care of children or a lower income does not automatically produce a particular percentage adjustment. There are no reliable shortcut calculations. That is why statements such as: “My friend got 70%, so I should too” or: “I paid for the house, so it's mine” can send negotiations in the wrong direction.
Another person's settlement tells you very little about your own unless their circumstances are genuinely comparable, and even then, individual legal advice matters.
What if we both genuinely want 50/50?
You can absolutely explore that outcome. An amicable process isn't about trying to persuade people to claim more from each other. If you have completed proper disclosure, understand the financial position, understand your legal options and both independently choose an equal settlement, that may be entirely workable. The point is not that 50/50 is wrong. The point is that 50/50 should be an informed outcome, not an assumed rule.
If you intend to formalise the agreement through Consent Orders, the Court still needs to be satisfied that the proposed financial orders are just and equitable.
The Simplify approach
One of the reasons we create a clear balance sheet and model settlement scenarios is to move the conversation away from: “What percentage do I deserve?” and toward: “What does this settlement actually mean for each of us?”
That allows couples to consider:
The percentage still matters. But it sits inside a much bigger picture.
The short answer
There is no automatic 50/50 rule for property settlement after separation. Amicable does NOT = 50/50.
The process considers:
property and liabilities → contributions → current and future circumstances → whether the overall outcome is just and equitable.
For some couples, that may result in an equal division.
For others, it may not.
The aim is not to find the standard percentage. It is to arrive at an informed, workable and legally appropriate settlement for your circumstances.
This article provides general information only and is not legal advice. Property-settlement outcomes are highly dependent on individual circumstances. Different legislation applies to some de facto property matters in Western Australia. You should obtain independent legal advice about your own circumstances.