A binding financial agreement usually costs a few thousand dollars per person at the simple end, and tens of thousands per person when the finances are complicated.
The reason the range is that wide is that you are not paying for a document. You are paying for two lawyers, because the law requires each party to get independent advice before signing, and for the work of pinning down what you both actually own.
Cost is driven by complexity, not page count. A salary, a home and a super balance is a different job from a company, a family trust, a self managed super fund and an inheritance somebody disputes.
The mistake people make is shopping on price alone. A cheap agreement that gets set aside years later costs far more than the fee you saved.
So is your situation genuinely straightforward, or does it just feel that way?
Below we break down what drives the fee, when a fixed price is realistic, and what you should be asking before you engage anyone.
Key Takeaways
- Each party needs their own lawyer. The total cost is usually the sum of both parties’ legal fees, not just yours.
- Complexity drives cost more than document length. Businesses, trusts and unresolved disputes push fees up significantly.
- A fixed fee is possible for straightforward agreements. But “straightforward” has a specific meaning and your situation may not meet it.
- A BFA is often cheaper than contested court proceedings. The comparison matters when you’re deciding which path to take.
- Independent legal advice is not optional. Without it, the agreement cannot be valid.
- Preparation saves money. Arriving organised with clear financial disclosure can meaningfully reduce your legal fees.
How much does a binding financial agreement cost in Australia?
A binding financial agreement (BFA) is a private contract made under the Family Law Act. It sets out how property, financial resources and sometimes spousal maintenance are divided between you and your former partner. It can be made before a relationship starts, during the relationship, or after separation.
The cost is not one number. Here’s a realistic way to think about it.
For a straightforward agreement, where both parties broadly agree on terms, assets are simple (think one property, superannuation, and modest savings), and there is no business or trust in the mix, total legal fees for both parties combined typically sit in the range of several thousand dollars to around fifteen thousand dollars. That is a rough guide, not a quote.
For a moderately complex agreement, with two or three properties, a self-managed super fund, or some back-and-forth on terms, that total can move into the twenty to forty thousand dollar range, or beyond.
For genuinely complex matters, such as family trusts, business interests, overseas assets or significant dispute about what each party is entitled to, costs can extend well into five figures per person.
One thing most people don’t realise: those figures are usually per person. Each party needs their own independent lawyer. So when someone advertises a BFA for a low headline number, ask yourself whether that covers both parties. Often it doesn’t.
Key Point: When you see a BFA price quoted online, check whether it is per party or total. The answer will often double your expected cost.
What does a BFA cost if both parties need independent legal advice?
Independent legal advice is not a formality. It is a legal requirement.
For a BFA to be valid under the Family Law Act, each party must receive independent legal advice from their own lawyer. That lawyer must advise them on the effect of the agreement, and the advantages and disadvantages of signing it. Both lawyers then sign a certificate confirming that advice was given.
If this step is skipped or done carelessly, the whole agreement is at risk of being set aside later. That matters because the point of a BFA is certainty. An agreement that can be unravelled doesn’t give you what you paid for.
In practice, this means you cannot share a lawyer with your former partner. You each need your own. The cost of the independent legal advice is separate from the cost of drafting the agreement itself.
One common pattern: one party’s lawyer drafts the agreement, and the other party’s lawyer reviews it and provides the independent advice. In that scenario, the drafting costs sit with one party’s legal bill, and the review costs sit with the other’s. Sometimes those costs are shared by agreement. Sometimes they are not.
If you’re the party receiving an agreement drafted by the other side’s lawyer, you can expect to pay less in legal fees overall. But review is not rubber-stamping. A good lawyer reviewing a BFA for you will scrutinise every clause, not just initial it.
Expert Tip: If your former partner’s lawyer has drafted the agreement and you’re being asked to sign it, take your time with independent advice. The drafting was done for their client, not yours.
Why do binding financial agreement costs vary so much?
The honest answer is that the cost reflects the work involved, and the work involved depends almost entirely on your circumstances.
Three things drive cost more than anything else.
First, the complexity of your assets. A single jointly-owned home and two super accounts is a different problem from a family discretionary trust, a small business with goodwill, a mortgage and rental properties. The more pieces there are, the more drafting and reviewing is required, and the more time lawyers spend understanding the structure before they can protect you inside it.
Second, the level of dispute between you and your former partner. If you both arrive knowing roughly what a fair outcome looks like and are prepared to agree to it, the legal work is contained. If there is real disagreement about who gets what, that disagreement has to be worked through before the agreement can be drafted. Every round of negotiation adds cost.
Third, how prepared you are. Poor financial disclosure, missing documents, last-minute changes to what you want, or a change of position after the first draft is reviewed: all of these add hours to the file.
The difference between a clean matter and a chaotic one can be significant, even when the underlying assets are almost identical.
Key Point: Disagreement is the biggest cost driver that clients underestimate. Every back-and-forth between the parties’ lawyers costs time, and time costs money.
What is included in a fixed-fee binding financial agreement?
Some firms, including this one, offer fixed-fee arrangements for BFAs. The appeal is obvious: you know what you’re paying before you start.
But “fixed fee” needs to be unpacked. A fixed fee for a BFA typically covers:
- An initial advice session about whether a BFA is appropriate for your situation
- Drafting the agreement based on the instructions and financial information you provide
- One or two rounds of amendments based on reasonable feedback
- The independent legal advice session and signing of the certificate
What a fixed fee usually does not cover:
- Significant negotiation between parties who can’t agree on terms
- Valuation advice or forensic accounting for business or trust interests
- Multiple rounds of redrafting caused by changing instructions
- Litigation if the agreement is later challenged
The word “straightforward” carries a lot of weight in any fixed-fee offer. Ask the firm you are speaking with exactly what “straightforward” means to them. If your situation includes a business, a trust, a complicated super arrangement, or genuine disagreement about terms, it may not qualify.
Expert Tip: Before accepting a fixed-fee quote, describe your assets in full and ask the lawyer to confirm in writing that your matter falls within the fixed-fee scope. This protects you from unexpected bills later.
How much does a BFA cost if there are property, business, or trust structures?
This is where the gap between a simple BFA and a complex one becomes meaningful.
A business interest doesn’t just add one line to an agreement. It raises questions about valuation, what happens to goodwill, how income from the business is treated, and what happens if the business is sold after the agreement is signed. All of that has to be addressed in the document, and the lawyers on both sides have to understand the structure well enough to advise on it.
A family trust is even more involved. Trusts often have multiple beneficiaries, and the family court’s treatment of trust assets has developed through years of case law. An agreement that doesn’t grapple properly with the trust structure may not protect you the way you think it does.
If there are multiple properties, self-managed super funds, or overseas assets, you should expect costs to increase accordingly.
A realistic scenario: you and your former partner own a home together, have separate super, and one of you runs a small business. Total legal fees for both parties in a matter like that, where there is reasonable goodwill and broad agreement on terms, might sit somewhere in the twenty to thirty-five thousand dollar range. If there is real dispute, or if the business valuation becomes contested, that figure can rise considerably.
That’s not a scare figure. It’s a calibration. The cost reflects what’s at stake, and what’s at stake is often significant.
Key Point: Business and trust interests don’t just complicate the drafting. They can require input from accountants or valuers, and that specialist advice is a separate cost on top of legal fees.
How much does it cost to get a BFA reviewed by a second lawyer?
If your former partner’s lawyer has drafted the agreement and you’re being asked to review and sign it, you need your own lawyer to advise you before you do.
The cost of that review typically sits lower than the cost of drafting, because the document already exists. For a straightforward agreement, independent legal advice and review might cost between fifteen hundred and four thousand dollars. For something complex, where your lawyer needs to work through trust clauses, business provisions or unusual terms, expect more.
This is not a cost you should try to avoid or minimise. The independent advice is what makes the agreement valid. More than that, it’s what protects you. If the agreement has a problem, you want your lawyer to find it before you sign, not after.
Expert Tip: If you’re being asked to sign an agreement quickly, slow down. Speed in a BFA signing process is rarely in the signing party’s interest. Ask for enough time to get proper advice.
Can you get a binding financial agreement for a de facto relationship or after separation?
Yes, on both counts.
A BFA is available to married couples, de facto couples, and people who have already separated. The Family Law Act sets out slightly different provisions depending on the type of relationship and when the agreement is made, but the practical process and cost structure are broadly similar.
A de facto relationship agreement, sometimes called a cohabitation agreement, works on the same principles as an agreement between married parties. The requirement for independent legal advice applies equally.
An agreement made after separation is sometimes called a separation agreement or post-separation financial agreement. This is often what people mean when they talk about formalising “who gets what” after a relationship ends. A BFA is one way to do that. Consent orders are another. Which one suits your situation depends on a range of factors, including whether you want the matter dealt with privately or through the court process.
If your relationship was a de facto one, be aware that there are time limits on bringing property settlement claims. Getting advice early matters.
Key Point: De facto couples have access to the same BFA process as married couples. The time limits for property claims after a de facto relationship ends are different from those for marriage, so don’t assume you have unlimited time to formalise things.
How long does it take to prepare a binding financial agreement?
In a straightforward matter where both parties are organised and in agreement on terms, a BFA can sometimes be prepared and signed within four to six weeks.
In practice, delays are common. They come from waiting for financial disclosure from the other party, scheduling advice appointments, negotiating terms, and redrafting after feedback.
A realistic timeline for a moderately complex matter is two to four months.
If there is significant dispute, or if either party is slow to provide information, the timeline can stretch further.
One thing that compresses the timeline most reliably: both parties arriving with their financial information already organised and their expectations already realistic.
If you’re in a situation where you need a BFA completed quickly, for example before a settlement date on a property, be upfront about that at your first appointment. Urgency is manageable, but it needs to be flagged early and it can sometimes affect the fee structure.
Expert Tip: Don’t let a looming settlement date be the thing that forces a rushed agreement. Plan the BFA process early enough that you have time to think clearly, not just sign quickly.
What happens if the other person does not agree to the BFA?
A BFA cannot be forced on anyone. Both parties have to agree to sign it. If your former partner refuses to engage, disputes the terms entirely, or won’t participate in the process, a BFA is not an option.
In that situation, you have a different conversation to have, usually about property settlement through consent orders or, if agreement remains impossible, through contested proceedings in the Federal Circuit and Family Court of Australia.
If the other person is willing to negotiate but you haven’t yet agreed on terms, that negotiation can happen, but it comes at a cost. Each round of offers and counteroffers, each exchange between the parties’ lawyers, adds to the total fees.
The parties who spend the least on a BFA are generally those who have already worked out the broad shape of their agreement and come to their lawyers to formalise it, not to fight it out.
Key Point: A BFA requires consent. If the other party won’t sign, you’ll need to consider alternative paths to formalising your property settlement.
What are the risks of choosing the cheapest BFA option?
This is worth being direct about.
A BFA that is later set aside gives you nothing. It doesn’t protect you. The money you spent on it is gone, and you’re back at the beginning, often in a worse position because time has passed and circumstances have changed.
The Family Law Act sets out specific requirements for a BFA to be valid. If independent legal advice was not properly given, if there was pressure or duress in the signing process, if material financial information was not disclosed, or if the agreement is found to be unjust in all the circumstances, a court can set it aside.
An online template, completed without proper legal involvement on both sides, may satisfy none of those requirements. A cheap document that hasn’t been properly tailored to your circumstances may fail on the facts even if it looks complete on the page.
The cost of litigation to set aside, or to defend a challenge to, a BFA can easily exceed the amount you saved by going cheap in the first place.
This isn’t an argument for spending more than you need to. It’s an argument for spending enough to do it properly.
Key Point: The cheapest BFA is only cheap if it holds. If it’s challenged and set aside, you’ve paid twice: once for the document, and again to deal with the fallout.
Is a binding financial agreement cheaper than going to court or using consent orders?
It depends on how much you fight.
Consent orders are made by filing an application with the Federal Circuit and Family Court of Australia. Both parties agree to the terms, the court reviews them and makes orders. The process is court-supervised, which some people prefer. Court filing fees apply and legal fees for preparing the documentation apply. For a reasonably simple property settlement where parties agree, consent orders can be a cost-effective option.
Contested court proceedings are a different matter entirely. A contested property trial can cost each party tens of thousands of dollars in legal fees, take years to reach a final hearing, and produce an outcome that neither party chose. Measured against that, a well-drafted BFA starts to look like a modest investment in certainty.
A BFA and consent orders are not mutually exclusive for all purposes. They address things slightly differently. A BFA is a private contract. Consent orders are court orders. The right choice depends on your specific circumstances, which is a conversation worth having with a lawyer rather than resolving off a comparison article.
If your situation involves a genuine property dispute that can’t be resolved by agreement, neither a BFA nor consent orders will resolve it without negotiation first. The cost of that negotiation is the same regardless of which instrument you ultimately use to record the outcome.
Expert Tip: If you and your former partner are broadly in agreement, the most cost-effective path is almost always to formalise that agreement properly, whether through a BFA or consent orders, rather than let matters drift and risk a later dispute.
What should you bring to keep BFA legal costs down?
Preparation is money.
When you arrive at your first appointment with a lawyer, the more information you have ready, the less time the lawyer spends chasing it. And time is what you’re paying for.
Bring:
- A list of all assets, including properties, vehicles, bank accounts, investments and superannuation, with current approximate values
- A list of all debts, including mortgages, personal loans and credit cards
- Your three most recent payslips and your former partner’s if you have them
- Your most recent tax return
- Super fund statements for both parties
- Any existing agreements, financial documents or correspondence about the separation
- Your honest assessment of what you think a fair outcome looks like
Arriving with that information doesn’t just save cost. It also means your first appointment is a genuine strategy conversation, not an information-gathering exercise.
Expert Tip: The single thing that saves the most in legal fees is knowing what you want and being realistic about it. If you arrive clear-headed about your own position, your lawyer can focus on protecting it rather than helping you work it out.
When should you get legal advice about a binding financial agreement?
The honest answer is: earlier than you think.
If you’re in the middle of a separation and haven’t yet formalised your property arrangements, getting advice now is almost always better than waiting. The longer things stay informal, the harder they can become to resolve, and in some situations time limits can affect your options.
If you’re in a de facto relationship and thinking about an agreement before disputes arise, now is also the right time. An agreement made when the relationship is solid and both parties are thinking clearly is far easier to negotiate than one drafted in the middle of a separation.
If someone has handed you a BFA to sign, get advice before you do. Not after.
And if money is tight, say so. A good family lawyer will have a conversation with you about what you can afford and what level of service makes sense for your situation. That’s a practical conversation, not an embarrassing one.
You can book a confidential, no-obligation chat with the C + K Family Lawyers team to talk through your circumstances and get a clear sense of what your options look like and what they might cost.
Frequently asked questions
Do I have to pay for my former partner’s legal costs as well as my own?
Generally, no. Each party is responsible for their own legal fees. However, the total cost of getting a BFA done involves both parties’ legal fees. Sometimes parties agree to share costs, or the party who instigated the agreement covers some of the other party’s costs. That’s a matter for negotiation.
What if we already have a handshake deal, does that count?
No. An informal arrangement has no legal force under the Family Law Act. Without a properly executed BFA or consent orders, either party can make a formal claim later. The handshake deal protects neither of you.
Can my former partner and I use the same lawyer to save money?
No. Each party must have their own independent lawyer. Using the same lawyer is not permitted for a BFA and would invalidate the independent legal advice requirement.
Is a prenup the same as a binding financial agreement?
In Australia, what other countries call a prenuptial agreement is a BFA made before marriage or the commencement of a de facto relationship. The legal instrument is the same. Prenup cost Australia searches often refer to this kind of agreement, which follows the same process and similar cost structure as any other BFA.
What if my situation changes after we sign the BFA?
A BFA can be varied or terminated by a later written agreement, provided both parties consent and both again receive independent legal advice. It can also be set aside by a court in defined circumstances. If your circumstances change significantly, it’s worth reviewing the agreement with a lawyer.
What to do next
If you’re reading this late at night trying to make sense of your options, the most useful thing you can do tomorrow morning is make a call.
Not to commit to anything. Not to start a fight. Just to sit across from someone who has seen this before and hear, plainly, what your situation looks like and what it’s likely to cost to resolve it properly.
A binding financial agreement done well gives you something worth paying for: certainty, finality, and the ability to move forward without the threat of a reopened dispute hanging over you.
Done badly, it gives you none of that.
Get in touch with the C + K Family Lawyers team for a confidential, no-obligation conversation about your situation. We’ll give you a straight answer.
This article is general information only and is not legal advice. Family law outcomes depend on your individual circumstances. For advice about your situation, speak with a qualified family lawyer.
About the Author
Christopher (Chris) Jones is the Principal Lawyer and co-founder of CK Family Lawyers, a Queensland family law firm. Chris advises on divorce, property settlement, parenting arrangements, binding financial agreements, mediation and domestic violence matters. After working in legal environments where clients felt depersonalised and lost in jargon, he co-founded the firm with Krystina Jones on the belief that people deserve family lawyers who genuinely care, and he works directly with his clients throughout their matters.
