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A Domestic Partnership Agreement — also known as a De Facto Financial Agreement — is a legally significant document under which two de facto partners set out their respective financial rights and obligations during their relationship and, critically, on the breakdown of that relationship. In Australia, the Family Law Act 1975 (Cth) was substantially amended in 2009 to extend the federal financial settlement framework to de facto couples in all states and territories except Western Australia (which operates under its own Family Court Act 1997 (WA)). Part VIIIAB of the Family Law Act 1975 (Cth) governs de facto financial agreements and property orders, providing de facto partners with substantially the same rights and obligations as married couples in relation to property settlement and spousal maintenance. A de facto relationship is defined in section 4AA of the Family Law Act 1975 (Cth) as a relationship between two persons who are not legally married to each other, are not related by family, and have a relationship as a couple living together on a genuine domestic basis. In determining whether a de facto relationship exists, courts consider a range of factors including the duration of the relationship, the nature and extent of the common residence, the degree of financial dependence or interdependence, the ownership and use of property, the degree of mutual commitment to a shared life, the care and support of children, and the reputation and public aspects of the relationship. There is no prescribed minimum period for a de facto relationship to exist, but the court generally requires at least two years of cohabitation before it will make property orders in favour of a de facto partner, subject to exceptions under section 90SB of the Family Law Act 1975 (Cth) (such as where there is a child of the relationship or where a party has made substantial contributions). A Domestic Partnership Agreement made under Part VIIIAB of the Family Law Act 1975 (Cth) — also known as a binding financial agreement — can be made before the de facto relationship commences (a 'pre-nuptial equivalent'), during the de facto relationship, or after separation. To constitute a binding financial agreement under section 90UC of the Act and thereby oust the jurisdiction of the Federal Circuit and Family Court of Australia to make a property order under section 90SM, the agreement must meet strict formal requirements: it must be in writing, it must be signed by both parties, and — most critically — each party must have received independent legal advice from a solicitor about the effect of the agreement on their rights and whether the agreement is advantageous, before signing. Each party's solicitor must provide a signed certificate of independent legal advice, which is attached to the agreement. Without meeting these requirements, the document will not have binding financial agreement status and will not oust the court's jurisdiction, though it may still have evidentiary value as to the parties' intentions. A Domestic Partnership Agreement typically addresses several interconnected areas of financial life. The first is the identification and protection of each partner's separate property — the assets each partner brings to the relationship from before it commenced, or assets received during the relationship by gift or inheritance. Separate property provisions typically state that these assets remain each partner's individual property on the breakdown of the relationship, regardless of how long the relationship lasts. The second area is the treatment of property acquired jointly during the relationship — how jointly-acquired assets, joint accounts, a shared home and other shared financial interests will be dealt with. The third area is the treatment of superannuation. Under Australian law, superannuation is treated as a specific type of financial resource and can be the subject of splitting orders when a de facto relationship ends, under section 90MT and related provisions of the Family Law Act 1975 (Cth). A Domestic Partnership Agreement can include provisions dealing with superannuation, including an agreement by each party to keep their own superannuation or a more complex arrangement involving splitting of contributions made during the relationship. The fourth area is maintenance — commonly called de facto maintenance or spousal maintenance in the Australian context. Under section 90SF of the Family Law Act 1975 (Cth), a de facto partner may apply for maintenance if they are unable to support themselves adequately following the breakdown of the de facto relationship and the other party has the capacity to pay. A Domestic Partnership Agreement can include an agreement that neither party will seek maintenance from the other, which, if included in a binding financial agreement under section 90UC, will oust the court's maintenance jurisdiction. The fifth area is financial arrangements during the relationship itself — how household expenses will be shared, how income will be managed, and how joint debts and liabilities will be handled. While these provisions do not generally need court approval, including them provides clarity and reduces the potential for financial disputes during the relationship. Property settlement for de facto couples in Western Australia is governed by the Family Court Act 1997 (WA), which has its own provisions and procedural requirements that differ from the federal framework. Western Australian de facto couples should seek advice from a solicitor admitted in Western Australia about the specific requirements that apply to them. All other Australian states and territories follow the federal framework under Part VIIIAB of the Family Law Act 1975 (Cth).

What Is a Domestic Partnership Agreement (Australia)?

A Domestic Partnership Agreement — also known as a De Facto Financial Agreement — is a written document in which two de facto partners set out their respective financial rights and obligations, both during their relationship and on its breakdown. In Australia, de facto couples have substantial financial rights and obligations under the Family Law Act 1975 (Cth), and a Domestic Partnership Agreement enables those couples to organise their financial affairs on terms they have chosen, rather than leaving those affairs to be determined by a court if the relationship later ends.

The legal framework for de facto financial agreements in Australia is set out in Part VIIIAB of the Family Law Act 1975 (Cth). This Part was introduced in 2009 to extend the federal property and maintenance framework — previously available only to married couples — to de facto couples in all states and territories except Western Australia. Under section 4AA of the Family Law Act 1975 (Cth), a de facto relationship is a relationship between two persons who are not married to each other, are not related by family, and have a relationship as a couple living together on a genuine domestic basis. Same-sex couples are expressly included in this definition.

A Domestic Partnership Agreement made under Part VIIIAB will, if it complies with the formal requirements of section 90UB (pre-relationship), section 90UC (during relationship) or section 90UD (post-separation), constitute a binding financial agreement and oust the jurisdiction of the Federal Circuit and Family Court of Australia to make a property settlement order or maintenance order in respect of the de facto relationship. This means that if the relationship ends, the agreed terms — not a court's assessment — will determine the financial outcome. The practical benefit is certainty: both partners know from the outset of the relationship, or from the date of the agreement, how their finances will be handled if the relationship ends.

The core formal requirement for a binding financial agreement is independent legal advice. Before signing, each party must receive advice from their own independently retained solicitor about the effect of the agreement on their rights and whether the agreement is, or is not, advantageous. Each party's solicitor must sign a certificate confirming that this advice was given. Without these certificates, the agreement does not have binding financial agreement status and the court retains its general jurisdiction over property settlement.

When Do You Need a Domestic Partnership Agreement (Australia)?

A Domestic Partnership Agreement is appropriate for any de facto couple in Australia who wish to provide clarity and certainty about their financial arrangements — both during the relationship and if it ends. The three main circumstances in which it is used correspond to the three types of agreement under Part VIIIAB of the Family Law Act 1975 (Cth).

The first circumstance is before cohabitation commences — the equivalent of a pre-nuptial agreement for de facto couples. An agreement made before the relationship begins under section 90UB can specify how separate property brought to the relationship will be treated, and what the financial outcome will be if the relationship ends. This is particularly relevant when one partner has substantially more assets than the other, when one partner owns real property, or when one partner has children from a previous relationship and wishes to ensure their assets are preserved for those children.

The second circumstance is during the de facto relationship — an agreement made under section 90UC at any time during cohabitation. Partners who did not enter into an agreement before the relationship commenced may wish to do so once they are established as a couple — for example, when they purchase property together, when one partner makes a significant career change, or simply when they decide they want the certainty that a written financial agreement provides.

The third circumstance is following separation — an agreement made under section 90UD to deal with the financial consequences of the breakdown of the de facto relationship, without the need for court proceedings. A post-separation agreement can resolve the division of property, superannuation and maintenance by consent, providing a far faster, cheaper and less adversarial outcome than contested court proceedings.

A Domestic Partnership Agreement is also relevant when a de facto couple is planning to marry. If the parties subsequently marry, the agreement made under Part VIIIAB will no longer apply to the marriage, and a new agreement under Part VIIIA of the Family Law Act 1975 (Cth) — a binding financial agreement for married couples — would be needed. Many couples use the occasion of their engagement to review and update their financial agreement.

What to Include in Your Domestic Partnership Agreement (Australia)

A comprehensive Domestic Partnership Agreement for Australia should address the following key elements.

The first element is the identification of the parties: full legal names, dates of birth, addresses and contact details. The Agreement should identify the state or territory in which the parties live together and the date on which cohabitation commenced.

The second element is the background to the Agreement: a statement of the nature of the relationship (de facto relationship within the meaning of section 4AA of the Family Law Act 1975 (Cth)), the stage at which the Agreement is being made (pre-relationship, during the relationship, or post-separation), and an acknowledgement that the parties are entering the Agreement freely and having been given the opportunity to obtain independent legal advice.

The third element is Partner 1's separate property: a detailed list of the assets Partner 1 brings to the relationship or has received by gift or inheritance during it, with an acknowledgement by Partner 2 that these assets are Partner 1's sole property. This should include real property (with the address and approximate current value), superannuation (with the fund name and approximate balance), savings, investments and other significant assets.

The fourth element is Partner 2's separate property: the equivalent list for Partner 2, acknowledged by Partner 1.

The fifth element is joint and relationship property: how property acquired jointly during the relationship will be owned and dealt with.

The sixth element is financial arrangements during the relationship: how household expenses, income and joint debts are to be managed.

The seventh element is property division on separation: the core provision of a binding financial agreement — how the combined asset pool will be divided if the de facto relationship ends. This should be specific and exhaustive.

The eighth element is superannuation: how each partner's superannuation interests — including contributions made during the relationship — are to be dealt with on separation.

The ninth element (optional) is de facto maintenance: whether maintenance will be paid on separation, by whom, and for how long — or an agreement waiving maintenance claims.

The tenth element is dispute resolution, a review clause, and governing law provisions. The Agreement should also include the formal requirements for a binding financial agreement: confirmation that each party has received independent legal advice and a reference to the solicitor certificates that must be attached.

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