Can a property settlement be 80/20 in Australia?

What does an 80/20 property settlement mean?

Usually, it means one person receives 80% and the other receives 20% of an identified net property pool. “Net” matters: it is the property included in the settlement less the liabilities included in that pool. The parties also need to be clear about whether superannuation is inside the combined percentage or being considered separately.

These figures show arithmetic only, not a likely legal outcome. They also show why an error in the pool matters: leaving out a debt, superannuation interest or valuable asset changes both shares.

Is 80/20 a recognised starting point?

No. The current Family Law Act 1975 and official guidance use a case-specific process rather than a starting percentage:

For marriages and de facto relationships governed by the Commonwealth Act, changes applying from 10 June 2025 expressly require the economic effect of family violence to be considered where relevant to contributions or current and future circumstances. This is not a fixed loading, compensation or punishment, and it does not translate particular conduct into an automatic percentage. If family violence or economic abuse may be relevant, seek independent legal and safety advice.

Start with the full guide to the factors that affect a property settlement, then compare the smaller departures explained in the 60/40 guide and 70/30 guide.

What could support a substantial departure from equality?

An 80/20 proposal needs an explanation based on the whole financial picture. Depending on the evidence, a substantial departure could be argued from contributions, current and future circumstances, or the combined effect of both. No single item below produces a set adjustment.

A marked difference in overall contributions

Relevant evidence may include property brought into the relationship, contributions made during it, post-separation contributions, and homemaking and parenting work. The weight of an initial asset or later contribution depends on its value, timing, use and the rest of the relationship history—not simply whose name appeared on a document.

A significant difference in current and future circumstances

Evidence about health, earning capacity, financial resources, liabilities and the care and housing needs of children may support an adjustment where it is just and equitable. The practical effect of a percentage also depends on the size and composition of the pool: 20% of a large, liquid pool is different from 20% of a small or inaccessible one.

Several considerations pointing in the same direction

Sometimes contribution evidence and current or future circumstances are both material. They still must be assessed without double counting and without treating the desired percentage as the starting assumption. Complex issues involving family violence, trusts, companies, bankruptcy, overseas assets, disputed disclosure or unusual superannuation interests require tailored legal advice.

Three practical traps hidden by the same 80/20 label

For example, an agreed 80% share of a $1 million net pool might combine $650,000 of net home equity, $100,000 cash and $50,000 superannuation. The other 20% might be $50,000 cash and $150,000 superannuation. The arithmetic reaches $800,000 and $200,000, but it says nothing by itself about refinancing, immediate cash flow, transaction costs, tax or whether the legal framework supports that outcome.

Evidence to check before relying on 80/20

1. Define the pool. List the property, debts, superannuation interests and financial resources being considered, with a consistent valuation date.
2. Document contributions. Gather records for initial property, inheritances, gifts, loan repayments, renovations, parenting, homemaking and relevant post-separation changes.
3. Support current and future circumstances. Use evidence for income, health, earning capacity, financial resources, liabilities, care arrangements and housing needs.
4. Calculate both net shares. State who receives each asset and liability, not just the headline percentage.
5. Stress-test implementation. Check finance approval, transfer or sale steps, payment dates, superannuation requirements and what happens if a step cannot be completed.
6. Choose the legal pathway. An informal agreement is different from binding consent orders or a financial agreement.

How can an 80/20 agreement be formalised?

If both people agree, they can ask the Court to make financial consent orders without a hearing. The application requires financial disclosure, everyone required to do something under the proposed orders must agree, and the Court considers whether the financial terms are just and equitable. Once made, consent orders are legally binding and can only be changed in limited circumstances.

A financial agreement is a different option with strict independent legal-advice requirements. Read how consent orders work and compare the costs of formalising a property agreement before choosing a path.

Frequently asked questions

Related property-settlement guides

• Understand what affects a property settlement in Australia.
• Compare a 70/30 property settlement without assuming either result.
• See why a 50/50 property settlement is possible but never automatic.
• Check the property-settlement time limit after divorce.
• Use divorce settlement examples to see why a percentage alone is not a prediction.
• Use the free property settlement calculator to organise a starting estimate.

Primary sources and important note

This guide was checked on 3 August 2026 against compilation C101 of the current Family Law Act 1975, dated 10 June 2025, including sections 79 and 90SM; the Attorney-General's Department's property-law changes fact sheet published 13 January 2025 and property framework summary published 26 February 2025; and the Court's current financial and property overview, guidance for couples who have agreed and orders guidance.

General information only. This page is not legal advice, a court prediction or a statement of entitlement. The examples are simplified illustrations. Get independent legal, financial and tax advice for your circumstances, especially for family violence, businesses, trusts, overseas assets, bankruptcy, disputed disclosure, tax or unusual superannuation interests. For de facto couples whose property matters are governed in Western Australia, non-superannuation property adjustment is generally dealt with under the Family Court Act 1997 (WA), not sections 79 or 90SM of the Commonwealth Act. The 10 June 2025 Commonwealth property-framework amendments therefore do not apply to those WA non-superannuation claims in the same way. Superannuation splitting for WA de facto couples is governed by Part VIIIC of the Commonwealth Family Law Act 1975, which contains its own decision-making provisions. Get WA-specific advice because the applicable pathway and eligibility depend on the facts.