If you are expecting or have already received an inheritance, protecting it from a future property settlement is a legitimate concern. Under Australian family law, an inheritance is not automatically quarantined from the asset pool. In the right circumstances, a court can treat it as property available for division. A prenup, or binding financial agreement, gives you a way to define how that inheritance is treated before a dispute ever arises.
How Australian law treats inheritance in a relationship
Many people assume that money or property left to them by a family member stays separate from the relationship. That assumption is not always correct. Under the Family Law Act 1975, the Family Court considers all assets owned by either party when determining what is available for property settlement. An inheritance received before or during a relationship can be brought into the asset pool, particularly if it has been used to pay down a shared mortgage, fund a joint lifestyle, or otherwise become intertwined with shared finances.
The timing and size of the inheritance, how long the relationship lasted, and how the money was used all influence whether a court will treat it as a joint resource or as a contribution belonging predominantly to one party. The longer the relationship and the more the inheritance was spent on shared expenses, the harder it becomes to argue it should be ring-fenced.
What a prenup can do to protect an inheritance
A binding financial agreement lets couples set out, in advance, how specific assets will be treated if the relationship ends. When it comes to inheritance, a well-drafted prenup can specify that any inheritance received by either party, whether before or during the relationship, remains the sole property of that person. It can also address how the investment returns or growth generated by inherited funds are treated.
This matters because courts are not bound to follow the ordinary asset-splitting approach when a valid BFA is in place. If the agreement satisfies all legal requirements, it effectively removes the inherited assets from the pool the court would otherwise consider. You can learn more about exactly what a prenup can and cannot do in Australia to understand the boundaries of this protection.
Anticipated inheritances versus received inheritances
There is an important distinction between an inheritance you have already received and one you expect to receive in the future. Courts can take anticipated inheritances into account when assessing a party's financial resources, but they cannot include them in the asset pool until the money or property has actually passed to you.
A prenup can address both situations. For an existing inheritance, it can declare that asset off-limits. For a future inheritance, it can include a clause stating that any inheritance received during the relationship will be treated as separate property. The clause needs to be drafted carefully to hold up under scrutiny, which is one reason why specialist legal advice is non-negotiable.
Requirements that determine whether the agreement will hold
A prenup that protects inheritance is only as good as its legal foundations. Under the Family Law Act, a binding financial agreement must meet strict procedural requirements to be enforceable. Both parties must receive independent legal advice from separately qualified family lawyers before signing. Each lawyer must provide a signed statement confirming the advice was given. The agreement must be in writing and signed by both parties.
Beyond procedure, the agreement must not have been obtained through duress, undue influence, or unconscionable conduct. If one party was pressured to sign, or if the agreement was presented at the last minute without adequate time for review, a court may set it aside entirely. Poor drafting is another common reason agreements fail, particularly where inherited assets are not described with enough precision.
Protecting inherited property specifically
If your inheritance includes real estate rather than cash, the protection strategy becomes more nuanced. Property that is kept entirely separate from the relationship is easier to protect. The difficulties arise when inherited property becomes the family home, is renovated using joint funds, or is transferred into joint names. Each of those steps weakens the argument that the asset remains separate.
A prenup can anticipate these scenarios and include provisions addressing what happens if inherited property is used jointly. For example, it can specify that any increase in the property's value attributable to joint contributions will be calculated and offset, while the underlying asset remains with the original recipient. This level of detail is where experienced family law drafting pays for itself.
When a prenup alone is not enough
A prenup is most effective when it works alongside good financial habits. Keeping inherited funds in a separate account, avoiding commingling with joint savings, and maintaining clear records of the inheritance's origin all reinforce the protections the agreement provides. If a dispute arises, documentary evidence of how the inheritance was managed can be the difference between a successful argument and one that falls short.
It is also worth reviewing your agreement periodically. A prenup drafted before children were born, before a significant increase in the inheritance's value, or before a long period of cohabitation may no longer reflect the parties' circumstances. Courts can look at whether the agreement remains fair in light of what actually happened during the relationship.
Getting proper advice before you act
If protecting an inheritance is your priority, the starting point is a conversation with a family lawyer who understands binding financial agreements in depth. A prenup that has been carefully tailored to your asset position is far more effective than a generic template. Whether you are entering a new relationship or have been together for some time, the process for obtaining one follows a clear legal pathway. Understanding how to get a prenup in Australia is a practical first step toward securing that protection.
Inheritance represents the accumulated effort of people you care about. With the right agreement in place, you can enter a relationship with genuine financial confidence, knowing that what was passed to you is protected regardless of how the future unfolds.