Prenup Cost Calculator
Estimate the cost of a prenup (binding financial agreement). Use the options below for an indicative 2026 Australian price, then get written quotes to confirm.
Your prenup details
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A prenup only binds if both parties get independent legal advice and it is properly drafted, do not cut corners with a template, a flawed agreement is worthless when you need it.
💰 Ways to save
- Get at least two or three written quotes, prices vary widely between providers.
- Ask exactly what is and is not included so you are comparing like for like.
- Bundle related work into one visit or order to share fixed call-out and setup costs.
How we estimate this
A prenup, or binding financial agreement, in Australia typically costs around $800 to $2,000 in 2026 for a simple agreement, rising to $3,000 to $6,000 for complex estates with both parties independently advised.
Pricing reviewed: November 2026.
Understanding prenup costs in Australia
A prenup, or binding financial agreement, in Australia typically costs around $800 to $2,000 in 2026 for a simple agreement, rising to $3,000 to $6,000 for complex estates with both parties independently advised.
A binding financial agreement sets out how assets are split if the relationship ends. To be enforceable each party needs independent legal advice, so budget for two lawyers and proper drafting.
Frequently asked questions
How much does a prenup cost in Australia?
Roughly $800 to $2,000 in 2026 for a simple binding financial agreement, and $3,000 to $6,000 for complex estates with both parties independently advised.
Does a prenup need both people to have lawyers?
Yes. For a binding financial agreement to be enforceable in Australia, each party must receive independent legal advice. An agreement without it can be set aside.
Are you a family lawyer?
Everyone on this page is working out what prenup 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.