When couples in Australia move in together or plan to marry, understanding how to protect their financial interests becomes crucial. This article explains the differences between binding financial agreements and cohabitation agreements, helping you determine which legal document suits your situation.
The Key Differences Between BFAs and Cohabitation Agreements
Binding financial agreements and cohabitation agreements serve different purposes in Australian law, and understanding these distinctions is essential for making the right choice. A binding financial agreement (BFA) is a legally recognised document under the Family Law Act 1975 that allows couples to determine how their assets, liabilities and financial resources will be divided if their relationship ends. These agreements can be made before marriage, during marriage, after separation, or before, during or after a de facto relationship. The key characteristic of a BFA is that it overrides the usual property settlement provisions under the Family Law Act, provided it meets strict legal requirements including independent legal advice for both parties.
A cohabitation agreement, on the other hand, is essentially a contract between two people who are living together but are not married or in a de facto relationship recognised under family law. These agreements are governed by general contract law principles rather than the Family Law Act. Cohabitation agreements typically address matters such as how household expenses will be shared, who owns which assets brought into the relationship, and how jointly acquired property will be divided if the relationship ends. While they can be useful documents, they do not carry the same weight as a BFA when it comes to family law proceedings.
The most significant difference lies in their legal enforceability and the circumstances under which they apply. A properly executed BFA can prevent either party from making a claim for property settlement under the Family Law Act, whereas a cohabitation agreement is simply a contract that can be enforced like any other agreement. If your relationship meets the definition of a de facto relationship under Australian law, generally requiring two years of living together or having a child together, then you fall under the Family Law Act’s jurisdiction, and a BFA would be the appropriate document. If you’re simply sharing accommodation without the relationship meeting the de facto criteria, a cohabitation agreement might suffice.
When a Binding Financial Agreement Is the Right Choice
For Married Couples and De Facto Relationships
If you are planning to marry or are already married, a BFA is the only option available to you for protecting your financial interests outside of a court order. Marriage automatically brings you under the jurisdiction of the Family Law Act, and only a BFA can override the property settlement provisions that would otherwise apply. The agreement allows you to decide in advance how your assets will be divided, which can save significant time, money and emotional stress if the relationship ends. Many people refer to these as prenuptial agreements when made before marriage, though they all fall under the same legal framework.
For de facto couples in Australia, the situation is slightly more complex but equally important. Once your relationship meets the criteria for a de facto relationship under the Family Law Act—typically two years of living together, or less if you have a child together or made substantial contributions—you become subject to the same property settlement laws as married couples. At this point, a BFA becomes the appropriate legal instrument to protect your financial interests. A simple cohabitation agreement would not be sufficient to prevent a claim under the Family Law Act once your relationship qualifies as de facto.
When You Have Significant Assets or Liabilities
A BFA is particularly important when one or both parties bring substantial assets into the relationship, such as property, business interests, investments or inheritances. The agreement can protect these pre-relationship assets and specify that they remain with their original owner if the relationship ends. This is especially relevant when there is a significant imbalance in the financial positions of the two parties entering the relationship. Without a BFA, these assets could be considered part of the relationship property pool and subject to division according to contributions and future needs, regardless of when they were acquired.
Similarly, if one party has significant debts or liabilities, a BFA can cover debt and future liabilities to protect the other party from being held responsible for these obligations. The agreement can clearly delineate which debts belong to which party and ensure that each person remains responsible only for their own financial commitments. This protection is particularly valuable when one partner has business debts or other substantial liabilities that could otherwise impact the other party’s financial position.
When a Cohabitation Agreement Might Be Sufficient
For Casual Living Arrangements
A cohabitation agreement can be appropriate when two people are sharing accommodation but their relationship does not meet the criteria for a de facto relationship under the Family Law Act. This might include situations where housemates are sharing expenses but maintaining separate romantic lives, or couples in the early stages of a relationship who have not yet lived together for two years and do not have children together. In these circumstances, the Family Law Act does not apply, and a simple contractual agreement can govern the financial arrangements between the parties.
These agreements are useful for clarifying practical matters such as how rent and utilities will be split, who is responsible for various household expenses, and what happens to jointly purchased items if one person moves out. They provide a clear framework for the living arrangement and can help prevent disputes about money and property. However, it’s important to understand that if your relationship evolves into a de facto relationship, a cohabitation agreement may no longer provide adequate protection, and you should consider upgrading to a BFA.
When Legal Formality Is Not Required
Cohabitation agreements can be simpler and less expensive to create than BFAs because they do not require the same level of legal formality. Unlike a BFA, which requires each party to receive independent legal advice and comply with strict requirements under the Family Law Act, a cohabitation agreement is simply a contract that can be drafted and signed by the parties themselves. While it is still advisable to seek legal advice, the mandatory requirements are far less stringent. This makes cohabitation agreements a more accessible option for people in casual living arrangements who want some level of documentation without the expense of a full BFA.
However, this simplicity comes with limitations. Because cohabitation agreements are not governed by the Family Law Act, they cannot override family law property settlement provisions if your relationship does qualify as de facto. They also may not be as comprehensive in addressing the complexities of financial arrangements in intimate relationships. If there is any possibility that your relationship might be considered de facto, investing in a properly executed BFA is the safer choice for ensuring your financial interests are protected.
Important Considerations When Choosing Between the Two
Understanding De Facto Relationship Status
One of the most critical factors in deciding between a BFA and a cohabitation agreement is understanding whether your relationship qualifies as de facto under Australian law. The Family Law Act considers several factors when determining de facto status, including the duration of the relationship, whether you live together, the degree of financial dependence or interdependence, whether you have a sexual relationship, whether you have children together, and how you present yourselves to others. If your relationship meets these criteria, you fall under the Family Law Act, and only a BFA can provide proper protection from property settlement claims.
Many couples mistakenly believe that simply calling their relationship something other than de facto or keeping their finances separate will exempt them from the Family Law Act. This is not the case. The courts look at the substance of the relationship, not what you call it. If you have been living together in an intimate relationship for two years or more, you are likely considered de facto regardless of your intentions or how you describe the relationship. This is why seeking legal advice about your relationship status is so important before deciding which type of agreement to pursue.
The Importance of Proper Legal Advice
For a BFA to be legally binding and enforceable, the Family Law Act requires that both parties receive independent legal advice before signing the agreement. This means each person must consult with their own solicitor who will explain the advantages and disadvantages of the agreement and how it will affect their rights. This requirement exists to ensure that both parties fully understand what they are agreeing to and are not being pressured or misled. A BFA that does not meet these requirements can be set aside by the court, rendering it worthless.
While cohabitation agreements do not have the same mandatory legal advice requirement, obtaining legal guidance is still highly recommended. A solicitor can help ensure that your agreement is properly drafted, covers all necessary issues, and is likely to be enforceable if a dispute arises. They can also advise you on whether a cohabitation agreement is actually sufficient for your situation or whether you should be considering a BFA instead. The cost of legal advice upfront is minimal compared to the potential costs of disputes and litigation later if your agreement is found to be inadequate or unenforceable.
Timing and Future Changes
The timing of when you create your agreement can impact which option is appropriate. If you are about to move in together but have not yet established a de facto relationship, you might start with a cohabitation agreement and later upgrade to a BFA once your relationship meets the de facto criteria. However, this approach has risks, as determining the exact point when a relationship becomes de facto can be difficult, and you may find yourself in a grey area where your cohabitation agreement is no longer sufficient but you have not yet created a BFA.
It’s also important to consider that circumstances change over time. A relationship that starts as a casual living arrangement may evolve into a committed de facto relationship. Assets and liabilities can change significantly during a relationship. Children may be born. For these reasons, it’s worth reviewing your agreement periodically and updating it as needed. A BFA can be made at any point during a relationship, not just at the beginning, so even if you start with a cohabitation agreement, you can always transition to a BFA when your circumstances warrant the additional protection.
Financial Implications and Asset Protection
How Each Agreement Protects Your Assets
The level of asset protection offered by each type of agreement differs substantially. A BFA, when properly executed, provides strong protection for your assets by completely opting out of the Family Law Act’s property settlement regime. This means that if your relationship ends, neither party can apply to the court for a property settlement—the BFA governs how everything is divided. This certainty is valuable for protecting pre-relationship assets, business interests, inheritances and other property you want to keep separate from the relationship. The agreement can specify exactly what happens to every asset and liability, leaving nothing to chance or future court interpretation.
A cohabitation agreement, by contrast, only provides protection based on contract law principles. If your relationship is determined to be de facto, the agreement may not prevent a property settlement claim under the Family Law Act. The cohabitation agreement might be considered as evidence of your intentions and financial arrangements, but it cannot override the statutory provisions that apply to de facto relationships. This means that even if you have a cohabitation agreement stating that certain assets remain separate, a court could still order a different division of property if it determines that your relationship was de facto and that a different outcome is just and equitable.
Addressing Superannuation and Future Earnings
One advantage of a BFA is that it can address superannuation entitlements, which are considered property under the Family Law Act. The agreement can specify how superannuation will be split if the relationship ends, providing certainty about these often substantial assets. Superannuation splitting is a complex area of family law, and a BFA allows you to determine the outcome in advance rather than leaving it to future negotiation or litigation. This is particularly important when one party has significantly greater superannuation than the other, or when one party has made career sacrifices that have affected their superannuation accumulation.
A cohabitation agreement can address how current assets and expenses are managed, but it cannot bind the parties regarding future property or superannuation in the way a BFA can. While you could include provisions about future intentions in a cohabitation agreement, these may not be enforceable if the relationship becomes de facto and falls under the Family Law Act. This limitation makes cohabitation agreements less suitable for people who want comprehensive protection for all aspects of their financial lives, including retirement savings and potential future earnings.
Legal Requirements and Enforceability
What Makes a BFA Legally Valid
For a BFA to be legally binding and enforceable, it must meet several strict requirements set out in the Family Law Act. Both parties must sign the agreement, and each party’s signature must be witnessed by a legal practitioner who is not witnessing the other party’s signature. Before signing, each party must receive independent legal advice from a qualified family law practitioner about the effect of the agreement on their rights and the advantages and disadvantages of making the agreement. Each legal practitioner must provide a signed statement confirming that this advice was given. The agreement must also include these certificates of independent legal advice.
The content of a BFA must be fair and reasonable at the time it is made, though the courts have limited power to set aside agreements that were properly executed. The agreement should disclose all relevant financial circumstances of both parties to avoid later claims of non-disclosure. While there is some flexibility in what a BFA can contain, it cannot include provisions about children, as matters affecting children’s welfare are always subject to the court’s jurisdiction. If a BFA fails to meet these formal requirements, it can be set aside, which is why professional legal assistance is essential when creating these agreements.
Enforceability of Cohabitation Agreements
Cohabitation agreements are enforced according to general contract law principles, which means they must meet the basic requirements of any valid contract. The agreement must involve an offer and acceptance, there must be consideration (something of value exchanged between the parties), the parties must intend to create legal relations, and the terms must be sufficiently certain and not contrary to public policy. Unlike BFAs, there is no requirement for independent legal advice, formal witnessing, or certificates from solicitors, though having these elements can strengthen the agreement’s enforceability.
The main enforceability concern with cohabitation agreements is that they may be overridden if the relationship is found to be de facto. Even a properly drafted cohabitation agreement cannot prevent the application of the Family Law Act to a relationship that meets the definition of de facto. Additionally, if the terms of a cohabitation agreement are found to be unconscionable or were entered into under duress or undue influence, they may not be enforced. Courts can also refuse to enforce contract terms that are fundamentally unfair or contrary to public policy, though they generally allow parties considerable freedom to determine their own arrangements.
Practical Steps for Implementation
Starting the Conversation With Your Partner
Discussing the need for either a BFA or cohabitation agreement with your partner can be challenging, as it requires addressing the possibility that the relationship might end. However, approaching the conversation thoughtfully can help frame these agreements as practical planning tools rather than signs of mistrust. Focus on the benefits of clarity and certainty, explaining that having a clear understanding of financial arrangements actually reduces stress and potential conflict. Many people find it helpful to present the agreement as a way to protect both parties fairly, rather than one person protecting themselves from the other.
Timing is important when raising this topic. For couples planning to marry, discussions about a prenuptial agreement should happen well before the wedding day to avoid claims of pressure or duress. For couples moving in together, the conversation should occur before or shortly after cohabitation begins, while both parties still have clear perspectives on their separate financial positions. Being open about your own assets, liabilities and concerns, and encouraging your partner to share theirs, creates a foundation of transparency that makes the agreement process smoother and more equitable.
Gathering Financial Information
Whether you are creating a BFA or a cohabitation agreement, you will need to compile comprehensive information about your financial situation. This includes details of all assets such as real estate, vehicles, bank accounts, investments, superannuation, business interests and personal property of significant value. You should also document all liabilities including mortgages, personal loans, credit card debts, tax liabilities and any other financial obligations. For a BFA, this disclosure is particularly important, as failing to disclose assets or liabilities can potentially result in the agreement being set aside later.
It is also helpful to clarify which assets you are bringing into the relationship and which are acquired during the relationship. This distinction is relevant for both types of agreements, as it helps determine what each party might reasonably expect to retain if the relationship ends. Documents such as property titles, bank statements, loan agreements, superannuation statements and business valuations provide the evidence needed to support your financial disclosure. Being thorough and honest at this stage prevents disputes later and ensures that any agreement you create is based on accurate information.
Working With Legal Professionals
Engaging qualified legal professionals is essential for BFAs and highly advisable for cohabitation agreements. For a BFA, you are legally required to obtain independent legal advice, which means you and your partner must each consult with your own solicitor. Your solicitor will review the proposed agreement, explain how it affects your legal rights, identify any concerns or unfair provisions, and ensure you understand what you are signing. They will also ensure that the agreement meets all formal requirements under the Family Law Act so that it will be legally binding and enforceable.
Even for a cohabitation agreement, consulting with a solicitor can help ensure that your agreement is properly drafted and appropriate for your circumstances. A legal professional can advise whether a cohabitation agreement is sufficient or whether you should be considering a BFA instead. They can help you include all necessary provisions, use clear and enforceable language, and avoid common pitfalls that might render the agreement ineffective. While it may be tempting to use a template or create an agreement without legal assistance to save money, the potential cost of an inadequate agreement far exceeds the cost of proper legal advice.
Common Mistakes to Avoid
Assuming Your Relationship Status
One of the most common mistakes people make is assuming they know their relationship status under the Family Law Act without seeking proper advice. Many couples believe they are not in a de facto relationship simply because they keep their finances separate, maintain separate bedrooms, or do not consider themselves to be in a committed relationship. However, the legal definition of de facto relationship considers multiple factors, and couples may be surprised to learn that their relationship meets the criteria. Using a cohabitation agreement when you are actually in a de facto relationship leaves you without proper protection, as the agreement may not prevent property settlement claims under the Family Law Act.
Conversely, some couples assume they need a BFA when their living arrangement is genuinely casual and does not meet the de facto criteria. While there is no harm in having more protection than necessary, a BFA is more expensive and time-consuming to create than a cohabitation agreement, and may be unnecessarily formal for your situation. The key is to accurately assess your relationship status with the help of a legal professional who can evaluate all the relevant factors and advise you on which type of agreement is appropriate.
Leaving Important Matters Unaddressed
Another common mistake is creating an agreement that does not adequately cover all relevant financial matters. Some couples focus only on major assets like property and ignore other important considerations such as superannuation, business interests, personal property, debts and future inheritances. A comprehensive agreement should address what happens to all assets and liabilities, including those acquired during the relationship, and should consider various scenarios such as separation, death, bankruptcy or significant changes in circumstances. Failing to address these matters leaves gaps that can lead to disputes and litigation later.
It is also important not to overlook practical matters such as how household expenses will be managed during the relationship, who is responsible for specific bills and debts, and how joint purchases will be treated. While these day-to-day financial arrangements may seem less important than addressing what happens if the relationship ends, they actually prevent many of the common conflicts that arise in relationships. A well-drafted agreement covers both the ongoing financial management of the relationship and the division of property if the relationship ends, providing comprehensive protection and clarity.
Using Templates Without Legal Advice
With the availability of legal templates online, many couples are tempted to create their own BFA or cohabitation agreement without professional legal assistance. While templates can provide a starting point, they are not tailored to your specific circumstances and may not comply with current legal requirements. For BFAs in particular, using a template without legal advice means the agreement will not meet the mandatory requirement for independent legal advice, rendering it invalid and unenforceable. Even if you draft an agreement using a template, it must be reviewed by separate lawyers for each party and meet all formal requirements to be legally binding.
Cohabitation agreements created from templates face similar risks. A generic template may not address the specific issues relevant to your situation, may use language that is unclear or unenforceable, or may include provisions that are not suitable for your relationship. Legal requirements and case law are constantly evolving, and a template that was appropriate when it was created may not reflect current legal standards. The cost of having a solicitor review and tailor a template to your circumstances is modest compared to the potential cost of litigation over an inadequate agreement, making professional legal assistance a worthwhile investment.
Need Help Determining the Right Agreement for Your Situation?
Choosing between a binding financial agreement and a cohabitation agreement depends on your specific relationship status, financial circumstances and protection needs. Understanding which document is right for you requires careful consideration of these factors and knowledge of how Australian family law applies to your situation.
As BFA lawyers, we can help you determine whether you need a BFA or a cohabitation agreement and create a document that properly protects your interests. Contact our team today by calling 1300 529 888.