Common Law Prenup Template for Australia

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What is a Common Law Prenup?

The Common Law Prenup, formally known as a Binding Financial Agreement (BFA) in Australia, is a crucial document for parties planning to marry who wish to establish clear financial arrangements in advance. It is particularly relevant for individuals with significant assets, business interests, expected inheritances, or those entering second marriages. The agreement must comply with the Family Law Act 1975 (Cth) and requires both parties to receive independent legal advice. It typically includes comprehensive details of all assets, liabilities, and financial resources of both parties, provisions for property division, and arrangements for financial support in case of relationship breakdown. The document must be carefully drafted to ensure enforceability and should be prepared well in advance of the marriage to avoid any suggestion of duress.

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Frequently Asked Questions

Are prenuptial agreements legally binding in Australia?

Yes, prenuptial agreements are legally binding in Australia when properly executed as Binding Financial Agreements (BFAs) under sections 90B-90KA of the Family Law Act 1975 (Cth). Both parties must receive independent legal advice and the agreement must be signed and witnessed correctly to be enforceable in Australian courts.

Can my prenup be challenged in Australian courts if it's missing required elements?

Yes, a prenuptial agreement can be set aside by Australian courts if it lacks required elements such as independent legal advice certificates, proper witnessing, or full financial disclosure. The Family Court may also overturn agreements that are unconscionable, obtained through duress, or where circumstances have changed significantly since signing.

How long before my wedding should I start preparing a prenup in Australia?

You should start preparing your prenuptial agreement at least 3-6 months before your wedding date in Australia. This allows adequate time for both parties to obtain independent legal advice, negotiate terms, make revisions, and ensure all Family Law Act requirements are met without rushing the process.

How is an Australian prenup different from a cohabitation agreement?

An Australian prenup (BFA before marriage) only takes effect after you marry and governs financial arrangements during marriage and potential divorce. A cohabitation agreement applies to de facto relationships and takes effect immediately, covering property and financial matters while living together without being married.

Must we disclose all assets and debts in our Australian prenup?

Yes, full and frank disclosure of all assets, liabilities, and financial circumstances is required under Australian law when creating a Binding Financial Agreement. Failure to disclose material information can result in the agreement being set aside by the Family Court, making complete transparency essential.

Can I include inheritance and future business interests in my Australian prenup?

Yes, you can include provisions for inheritances, future business interests, and expected financial gains in your Australian prenup. The Family Law Act allows BFAs to cover both existing and future property, making it particularly valuable for protecting anticipated inheritances and business growth.

Does my prenup automatically become invalid if I move interstate in Australia?

No, your prenuptial agreement remains valid if you move to another Australian state or territory, as it's governed by federal law under the Family Law Act 1975 (Cth). However, you should review the agreement with a local family lawyer to ensure it still meets your needs and circumstances in your new location.

Reviewed by

Swetha Meenal

Legal Engineer, GenieAI

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A lawyer, legal researcher and legal tech founder, Swetha has built AI products deployed inside Tier 1 firms and enterprises. She ensures GenieAI's alignment with the latest regulation and executes testing on the legal robustness of Genie output.

Reviewed by

Imad Mohammed Nazar

Legal Engineer, GenieAI

Imad Mohammed Nazar profile photo

A Skadden-trained M&A lawyer, Imad advised on cross-border transactions and contractual risk before moving into legal AI. He reviews GenieAI's output for compliance and enforceability across our 150+ supported jurisdictions, as well as facilitating external benchmarking.

Jurisdiction

Australia

Publisher

GenieAI

Sector

Business

Cost

Free to use

Last updated

About the Common Law Prenup

A Common Law Prenup, known legally in Australia as a Binding Financial Agreement (BFA), is a contract that allows you and your partner to agree on how your assets, debts, and financial resources will be divided if your marriage ends. This document operates under the Family Law Act 1975 and provides couples with certainty about their financial arrangements, protecting individual assets acquired before marriage while establishing clear rules for jointly acquired property.

When do you need this document?

You should consider a Common Law Prenup if you're bringing significant assets into the marriage, such as property, investments, or business interests. It's particularly valuable for second marriages where you want to protect assets for children from previous relationships, or if you expect to receive substantial inheritances. High-earning professionals, business owners, and individuals with family wealth often use prenups to maintain financial independence and avoid lengthy property disputes in case of separation. The agreement is also useful when there's a significant income disparity between partners or when one party has substantial debts you want to keep separate.

Key legal considerations

Your prenup must include comprehensive financial disclosure from both parties, covering all assets, liabilities, superannuation, and income sources. The agreement should clearly define separate property versus marital property, specify how jointly acquired assets will be divided, and address spousal maintenance arrangements. You must both receive independent legal advice before signing, and this advice must be acknowledged in writing within the document. The agreement cannot override your obligations to support children, and it must be fair and reasonable at the time of signing. Consider including sunset clauses that trigger review after certain milestones like having children or after a specific number of years.

Legal requirements in Australia

Under the Family Law Act 1975, your prenup must be in writing and signed by both parties in the presence of independent legal practitioners who have provided advice about the agreement's effect. Each lawyer must provide a signed certificate confirming they've given this advice. The agreement must demonstrate that both parties entered into it freely and voluntarily, with full understanding of its implications. Courts can set aside prenups if they find evidence of duress, undue influence, fraud, or if one party failed to disclose material financial information. The document must be executed at least 28 days before the marriage ceremony, though longer timeframes are recommended to avoid claims of pressure. Regular review and potential updates ensure your agreement remains relevant as circumstances change.

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