Binding Financial Agreement Cost Calculator
Estimate the cost of a binding financial agreement (a 'prenup' or post-nup) in Australia. Choose when it is made and the complexity. Each party must get independent legal advice.
Your binding financial agreement details
Your estimate sits within the typical range.
A binding financial agreement is only valid if BOTH parties get independent legal advice, so budget for two lawyers, not one, it is a legal requirement, not an upsell.
A BFA sets out how assets are divided if the relationship ends. It is only binding if strict requirements are met, including independent legal advice for each party, so do it properly or it can be set aside.
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Estimated breakdown for your configuration
💰 Ways to save
- Agree the terms between yourselves first, then have them drafted, cheaper than negotiating through lawyers.
- Keep the asset structure simple where you can, complexity drives the drafting fee.
How we estimate this
A binding financial agreement in Australia typically costs $1,500 to $12,000 in 2026 depending on complexity. A simple prenup with clear assets is at the low end; a complex agreement with trusts, business and super reaches the top.
Pricing reviewed: October 2026.
Understanding binding financial agreement costs in Australia
A binding financial agreement in Australia typically costs $1,500 to $12,000 in 2026 depending on complexity. A simple prenup with clear assets is at the low end; a complex agreement with trusts, business and super reaches the top.
A BFA is only valid if both parties receive independent legal advice, so you are paying for two lawyers. Done properly, it sets out asset division clearly; done poorly, it can be set aside by a court.
Frequently asked questions
How much does a binding financial agreement cost in Australia?
Typically $1,500 to $12,000 in 2026 depending on complexity. It includes independent legal advice for both parties, which is a legal requirement for the agreement to be valid.
Do both parties need their own lawyer for a BFA?
Yes. A binding financial agreement is only valid if each party receives independent legal advice, so you must budget for two lawyers, not one.
Are you a family law firm?
Everyone on this page is working out what binding financial agreement costs because they are ready to hire. Put your business right beneath the calculator, in your state, so you are who they find. From $50/mo.