Written by

Steven Lee

Mortgage Director, ODIN Mortgage & Tax

10+ years in Australian banking and mortgage lending

Last reviewed

Updated on: September 12, 2026 View profile →

Mixed-nationality couples buying property in Australia, where one partner holds Australian citizenship or permanent residency and the other is a foreign national, have access to a specific title and loan structure that can eliminate the foreign buyer stamp duty surcharge entirely. By placing the Australian spouse as the sole owner on title while listing both partners as borrowers on the mortgage, eligible couples can save AUD $70,000-$90,000 in stamp duty costs without reducing their combined borrowing capacity. This is not a workaround; it is a legally recognised structure accepted by major Australian lenders and widely used in estate and tax planning. The difference between using it and not using it is almost entirely a matter of whether your broker, lawyer, and tax advisor are coordinating as a team.

Why Do Mixed-Nationality Couples Face a Stamp Duty Problem?

Foreign nationals purchasing residential property in Australia are subject to a stamp duty surcharge on top of standard transfer duty. This surcharge is applied at the state level and varies by jurisdiction, but in major property markets like New South Wales, Victoria, and Queensland, it can add tens of thousands of dollars to the upfront cost of a purchase. For a couple buying a property in the AUD $1.5 million to $2 million range, this surcharge routinely reaches AUD $70,000 to $90,000.

The problem for mixed-nationality couples is that the surcharge is typically triggered by the foreign national’s ownership interest in the property. Even if only one member of a couple is a foreign national, placing both names on the title can attract the full surcharge in many states. This is the structural issue. It is not inevitable; it is a consequence of how the title is registered, not an inherent cost of the purchase.

What Is the Optimised Structure for Mixed-Nationality Couples?

The optimised approach separates title ownership from loan liability, two things that are commonly assumed to go together but are legally distinct.

Standard Approach (What Most Couples Do by Default)

• Both spouses listed as co-owners on title
• Both spouses listed as co-borrowers on the mortgage
• Result: Foreign buyer stamp duty surcharge applies because the foreign national holds an ownership interest

Optimised Approach (What Mixed-Nationality Couples Should Consider)

• Australian spouse listed as sole owner on title
• Both spouses listed as joint borrowers on the mortgage
• Result: No stamp duty surcharge, because no foreign national holds a legal ownership interest in the property
• Both incomes still count toward the lender’s serviceability assessment

The savings are material. Depending on the state and property value, eliminating the surcharge can save AUD $70,000 to $90,000 at the point of purchase. That is capital that stays in your pocket rather than going to a state revenue office.

How Does the Legal Mechanics of This Structure Work?

Understanding the legal separation between ownership and liability is the foundation of this strategy.

The critical point is that being a borrower and being an owner are entirely separate legal relationships. A joint borrower is fully liable for the mortgage debt, has their income assessed by the lender, and is equally responsible for repayments, but does not hold a registered ownership interest in the land. This is not an unusual arrangement in Australian mortgage law; it is routinely used in family lending, guarantor structures, and estate planning.

Which Lenders Accept This Structure?

Major Australian lenders, including ANZ, Westpac, CBA, and HSBC, accept the one-on-title, two-on-loan structure. This is not a niche or non-conforming product. It is a mainstream lending arrangement.

However, there are lender-specific requirements worth noting:

• Some lenders may request a solicitor’s letter confirming that both parties have received independent legal advice and understand the arrangement. This is standard practice and should not be treated as a red flag.
• Income documentation requirements for the foreign national borrower will still apply. The lender needs to verify both incomes for serviceability purposes, even though only one spouse is on title.
• Foreign income treatment varies by lender and currency. How a lender shades or discounts overseas income affects borrowing capacity, regardless of title structure.
• Borrowing power, loan-to-value ratios, and approval outcomes depend on individual circumstances, lender policy, and the specific foreign income profile involved.

Lender policies on these matters are subject to change. Working with a broker who holds current, lender-specific data on foreign income treatment is not optional; it is the difference between a smooth approval and an avoidable decline.

What Are the Tax Implications of This Structure?

Because all tax consequences sit with the title holder, the Australian spouse needs to understand what they are taking on before settlement.

• Capital gains tax: When the property is sold, CGT is assessed on the title holder’s gain. If the property is a primary residence, the main residence CGT exemption may apply, subject to eligibility and the Australian Tax Office’s conditions at the time of sale.
• Negative gearing: If the property is an investment, rental losses and interest deductions flow to the title holder’s tax return only. The foreign spouse cannot claim these deductions.
• Depreciation: Depreciation schedules apply to the title holder. For high-value properties, this can be a meaningful annual deduction.
• Land tax: Land tax obligations, where applicable, sit with the title holder and vary by state.

The tax implications of this structure are not uniformly positive or negative; they depend heavily on the Australian spouse’s overall tax position, residency status, and the intended use of the property. This is precisely why mortgage strategy, tax planning, and legal advice need to be coordinated before the structure is finalised, not after settlement.

What Are the Estate Planning Risks and How Should They Be Managed?

This is the part of the conversation that most couples miss. When the property is held solely in the Australian spouse’s name, it forms part of their estate. If the Australian spouse dies, the property does not automatically pass to the foreign spouse; it passes according to the will or intestacy laws of the relevant state.

This creates a specific risk that needs to be managed proactively:

• Ensure the Australian spouse’s will explicitly and accurately reflects the intended outcome for the property.
• Consider whether the foreign spouse’s visa status or residency position affects their ability to inherit and hold Australian residential property.
• Review the estate plan periodically, especially if residency status changes.
• The mortgage remains a joint liability even upon the title holder’s death. This has implications for the estate and should be discussed with a lawyer who understands both the mortgage and the will.

These are not reasons to avoid the structure. They are reasons to enter it with proper legal preparation. A lawyer who understands the arrangement will make sure your documentation reflects your intentions.

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