Australia: High Court confirms surcharge land tax on foreign-owned land despite non-discrimination clauses in Australia's international tax treaties

G Global 120E T2 Pty Ltd v Commissioner of State Revenue [2025] HCA 39

In brief

On 15 October 2025, the High Court of Australia handed down its decision in G Global 120E T2 Pty Ltd v Commissioner of State Revenue [2025] HCA 39.

The High Court unanimously upheld the validity of certain 2024 legislative amendments that retroactively and on a go-forward basis removed inconsistencies between the Commonwealth legislation which implemented Australia's international tax treaties and State and Territory taxation laws which imposed surcharge rates of taxation on foreign entities. 

This decision upholds the status quo —that any surcharge land tax imposed on or after 1 January 2018 on foreign entities (including foreign incorporated, foreign-owned, and foreign-controlled entities) is not inconsistent with Australia's obligations under international tax treaties.


Contents

Key takeaways

  • The High Court's decision removes any ambiguity as to the validity of surcharge land taxes or additional obligations imposed on foreign landowners by the State and Territory Revenue Offices, despite the existence of non-discrimination clauses in international tax treaties which Australia has concluded which require foreign taxpayers to be subject to not more burdensome taxation than Australian taxpayers.
  • The decision also suggests that any surcharge rates or additional obligations in relation to other types of taxes that may be imposed by the States and Territories on foreign persons (for example, surcharge stamp duty) may be valid.
  • Currently:
    • The States of Victoria and Queensland impose surcharge land tax on foreign or "absentee" entities in respect of all land owned in those states.
    • The States and Territories of New South Wales, Australian Capital Territory and Tasmania impose surcharge land tax in respect of residential land only.
  • Foreign entities who purchase or own Australian land should ensure they keep up to date with their obligations in respect of foreign surcharge State and Territory taxes, including specific notification requirements required by some Revenue Offices.

If you require any advice regarding compliance with these obligations, or advice more generally as to surcharge land taxes and stamp duty, please let us know.

In more detail

Background

The case concerned two separate sets of proceedings:

  • The first concerned the imposition of foreign surcharge land tax in Queensland on two Australian incorporated companies, G Global 120E T2 Pty Ltd and G Global 180Q Pty Ltd ("GG Entities"), which held Queensland land on trust for separate unit trusts ("GG Trusts"). The shares in the GG Entities and units in the GG Trusts were ultimately owned and controlled by a German parent company. Accordingly, the GG Entities sought to appeal against surcharge rates imposed due to their foreign status in respect of land tax assessments for the 2020-2021 and 2021-2022 financial years.
  • The second concerned the imposition of absentee owner surcharge land tax in Victoria on Mr Francis Stott, a citizen of New Zealand. Mr Stott sought to appeal against the assessments for the 2016 to 2024 land tax years and also the requirement to lodge a notice of his status as an absentee owner with the Victorian State Revenue Office. 

Legislative framework

Relevantly, Germany and New Zealand both have bilateral treaties with Australia ("International Treaties") which contained non-discrimination clauses prohibiting the imposition of 'any taxation or any requirement connected therewith which is other or more burdensome' than those to which nationals or similar entities of Australia are subjected, on nationals of or entities controlled by residents of Germany and New Zealand ("Non-Discrimination Clauses"). These clauses were said to apply to 'taxes of every kind and description.' The International Treaties were given force of law by section 5(1) of the International Tax Agreements Act 1953 (Cth) (ITAA).

Under the Land Tax Act 2010 (Qld) (QLTA), there is an additional 3% surcharge land tax rate imposed in addition to general land tax rates on all taxable land owned by absentee individuals, foreign corporations, and trustees of foreign trusts. As both "foreign corporations" and "trustees of foreign trusts" within the meaning of the QLTA, the GG Entities were assessed to foreign surcharge land tax.

Under the Land Tax Act 2005 (Vic) (VLTA), an "absentee owner" of land is required to lodge a written notice of their status as absentee owner with the State Revenue Office, Victoria. There is also an additional 4% surcharge land tax imposed in addition to general land tax rates on all taxable land owned by absentee owners. As an owner of land who was neither an Australian citizen nor Australian resident, and was absent from Australia between 2015 and 2023, Mr. Stott was an "absentee owner" for the purposes of the VLTA.

2024 amendments to the ITAA

On 8 April 2024, section 5(3) was inserted into the ITAA by the Treasury Laws Amendment (Foreign Investment) Act 2024 (Cth) ("2024 Amendment"). The 2024 Amendment confined the effect of the Non-Discrimination Clauses to Australian tax, which is relevantly defined as income tax and fringe benefits tax. This amendment effectively excluded the operation of the International Treaties upon other taxes imposed by the Commonwealth, or the States or Territories, and did so retroactively in relation to taxes payable on or after 1 January 2018.

Decision

The High Court found the following:

  • Prior to the 2024 Amendment, the surcharge land tax imposed by the QLTA and VLTA on foreign and absentee landowners respectively and additional reporting requirements imposed on absentee owners by the VLTA were inoperative due to their inconsistency with the ITAA, which gave legal effect to the Non-Discrimination Clauses.
  • The 2024 Amendment was valid and supported by the external affairs power under the Constitution as section 5 of the ITAA when read in its amended form is not substantially inconsistent with the International Treaties it seeks to implement despite limiting their domestic effect to Australian tax.
  • The 2024 Amendment was a valid retroactive amendment to section 5 of the ITAA such that the taxes imposed by the QLTA and VLTA at additional surcharge rates that were previously inoperative are revived and payable.

* * * * *

Prepared with assistance from Nicholas Tse, Associate.


Copyright © 2025 Baker & McKenzie. All rights reserved. Ownership: This documentation and content (Content) is a proprietary resource owned exclusively by Baker McKenzie (meaning Baker & McKenzie International and its member firms). The Content is protected under international copyright conventions. Use of this Content does not of itself create a contractual relationship, nor any attorney/client relationship, between Baker McKenzie and any person. Non-reliance and exclusion: All Content is for informational purposes only and may not reflect the most current legal and regulatory developments. All summaries of the laws, regulations and practice are subject to change. The Content is not offered as legal or professional advice for any specific matter. It is not intended to be a substitute for reference to (and compliance with) the detailed provisions of applicable laws, rules, regulations or forms. Legal advice should always be sought before taking any action or refraining from taking any action based on any Content. Baker McKenzie and the editors and the contributing authors do not guarantee the accuracy of the Content and expressly disclaim any and all liability to any person in respect of the consequences of anything done or permitted to be done or omitted to be done wholly or partly in reliance upon the whole or any part of the Content. The Content may contain links to external websites and external websites may link to the Content. Baker McKenzie is not responsible for the content or operation of any such external sites and disclaims all liability, howsoever occurring, in respect of the content or operation of any such external websites. Attorney Advertising: This Content may qualify as “Attorney Advertising” requiring notice in some jurisdictions. To the extent that this Content may qualify as Attorney Advertising, PRIOR RESULTS DO NOT GUARANTEE A SIMILAR OUTCOME. Reproduction: Reproduction of reasonable portions of the Content is permitted provided that (i) such reproductions are made available free of charge and for non-commercial purposes, (ii) such reproductions are properly attributed to Baker McKenzie, (iii) the portion of the Content being reproduced is not altered or made available in a manner that modifies the Content or presents the Content being reproduced in a false light and (iv) notice is made to the disclaimers included on the Content. The permission to re-copy does not allow for incorporation of any substantial portion of the Content in any work or publication, whether in hard copy, electronic or any other form or for commercial purposes.