Prenup After Marriage: 6 Important Questions Answered

prenup after marriage | Melbourne Family Lawyers

Prenup After Marriage: Is It Possible?

So, you’ve tied the knot, but you’re wondering if it’s too late to get a prenup. Good news! It’s never too late. In Australia, you can get a postnuptial agreement, which is essentially a prenup, but after you’ve said “I do.” 

Prenup vs. Postnup: What’s the Difference?

A Binding Financial Agreement (BFA), colloquially referred to as a “pre-nup”, is a legally enforceable agreement between married or de facto couples. These agreements can be entered into at any stage of your relationship.

Regarding safeguarding your financial future in a marriage, you have two main options: a prenuptial agreement (prenup) and a postnuptial agreement (postnup). While they serve similar purposes, the timing and certain legal aspects can differ.


  • Prenup: Created before marriage.
  • Postnup: Created after marriage.

Assets and Debts

Both agreements typically list all the property each person owns and any debts and specify what each person’s property rights will be after the marriage.


  • Prenup: Generally set in stone unless mutually amended.
  • Postnup: This can be more flexible and adjusted as circumstances change, like the birth of a child or the acquisition of significant assets.

Legal Standing

In Australia, both prenups and postnups are legally binding if drafted correctly. However, they can be set aside by the Family Court under specific conditions, such as non-disclosure of assets.

🔑 Key Takeaway: While prenups and postnups serve similar purposes, their creation’s timing and flexibility can differ. Both are legally binding in Australia but can be set aside under certain conditions.

What is a Postnuptial Agreement?

A postnuptial agreement, or prenup after marriage, is a legal contract between spouses after marriage.

It outlines how assets and property will be divided in the event of a separation or divorce.

Like a prenup, a postnup can protect individual assets, inheritance, and even cover spousal maintenance.

Key Takeaway: A postnuptial agreement is like a prenup but comes into play after marriage. It’s a legal way to decide how assets will be divided if things go south.

Why Consider a Postnup?

Financial Harmony

One of the main reasons couples opt for a postnup, or prenup after marriage, is to achieve financial harmony.

If you are concerned about your partner’s debts or financial responsibilities, a postnup can help by clearly defining what belongs to whom.

A Way Out

A postnup or prenup after marriage, can be a safety net, providing a clear path for asset division if the marriage ends.

It can also outline provisions for children, such as college education contributions.

Peace of Mind

Knowing that you have a financial plan in place can offer peace of mind, making the marriage more stable and less stressful.

Key Takeaway: From financial harmony to peace of mind, a postnup can offer various benefits contributing to a healthier marriage.

How to Get a Postnup in Australia

Legal Requirements

Australia has strict requirements for valid postnuptial agreements. It’s crucial to consult a lawyer experienced in family law to ensure the agreement is legally binding.

Full Disclosure

Both parties must fully disclose their assets.

This process of financial disclosure is crucial in getting an accurate overview of the assets and liabilities in the property pool, and also determining the overall value of the assets.

Any dishonesty can nullify the agreement.

Consider Future Changes

This prenup after marriage can also include provisions for future changes, like having children or receiving an inheritance.

Key Takeaway: Engaging a lawyer is essential for drafting a valid postnup. Full disclosure and consideration of future changes are also crucial elements.

Can Postnups Be Set Aside?

In Australia, the Family Court can set aside a postnuptial agreement under certain conditions, such as non-disclosure of assets or if the agreement is not just and equitable.

Key Takeaway: While generally binding, postnups or prenup after marriage, can be set aside by the court under specific conditions. Make sure your agreement is rock-solid to avoid this.

Seek Legal Advice From A Qualified Lawyer

Whether you’re just starting your marital journey or have been married for years, a postnuptial agreement or a prenup after marriage is a financial lifebuoy.

It’s not just a piece of paper; it’s a roadmap for navigating the often complex terrain of marital finances.

But here’s the kicker: don’t go through it alone. In Australia, the legal landscape for postnuptial agreements is intricate, and a misstep could render your agreement null and void.

That’s why seeking legal advice from a qualified family lawyer is crucial. They can guide you through the legal requirements, ensuring your agreement is as watertight as possible.

So, if you missed the chance for a prenup, fret not. 

Key Takeaway: A postnuptial agreement or prenup after marriage is more than just a safety net; it’s a financial plan for your marriage.

However, the importance of seeking expert legal advice must be considered. It ensures that your agreement stands up to legal scrutiny, offering genuine security for both parties.

Director of Melbourne Family Lawyers, Hayder manages the practice and oversees the running of all of the files in the practice. Hayder has an astute eye for case strategy and running particularly complex matters in the family law system.

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