Treasury Laws Amendment (Tax Reform No. 1) Bill 2026

High-Level Summary
This package of bills introduces significant reforms to Australia's tax system, specifically targeting housing affordability and tax fairness. Key measures include replacing the 50% Capital Gains Tax (CGT) discount with cost base indexation, restricting negative gearing to new residential builds, and introducing a new tax offset and standard deduction for workers. The reforms aim to address the growing gap between house prices and incomes, which has made it increasingly difficult for younger Australians to enter the property market. By reallocating tax incentives away from established housing and toward new supply, the government seeks to improve housing availability while providing cost-of-living relief to resident workers.

Summary

The Bills implement the "Tax Reform – Boosting Home Ownership" measure announced in the 2026-27 Budget. The reforms are structured across four primary schedules:

  • Schedule 1: Replaces the 50% CGT discount for individuals and trusts with cost base indexation for gains accruing from 1 July 2027, to "ensure only real gains are subject to taxation" [Explanatory Memorandum page 7]. It also introduces a 30% minimum tax on capital gains to ensure they face a rate "commensurate with the tax rate paid by most workers" [Explanatory Memorandum page 7]. Notably, pre-CGT assets (acquired before 1985) will be brought into the CGT net for gains accruing after 1 July 2027.
  • Schedule 2: Restricts negative gearing for residential dwellings to new builds for properties acquired after 12 May 2026. Net rental losses on established dwellings will be "quarantined" and only available to deduct against residential rental income or capital gains [Explanatory Memorandum page 9].
  • Schedule 3: Introduces the "Working Australians tax offset" (WATO), providing a non-refundable offset of up to $250 for resident individuals earning labour income.
  • Schedule 4: Introduces a $1,000 standard deduction for work-related expenses for residents with labour income, intended to "cut red tape and make tax time quicker and easier" [Explanatory Memorandum page 101].

The government contends these measures will "level the playing field for first home buyers" and make the tax system "fairer and more sustainable" [Explanatory Memorandum page 8].


Argument For
Normative Bases
  1. Egalitarianism
  2. Utilitarian Ground Truth
  3. Pro-Democracy

The proposed reforms represent a necessary correction to systemic distortions in the Australian economy that have long disadvantaged younger generations and low-to-middle income earners. By replacing the arbitrary 50% Capital Gains Tax (CGT) discount with cost base indexation, the Bill ensures that the tax system distinguishes between genuine wealth creation and mere inflationary gains, realigning the regime with its original policy intent [Judgment].

Furthermore, the restriction of negative gearing to new builds is a targeted intervention designed to address the housing crisis. As noted in the explanatory memorandum, current settings "favour leveraged investment in existing housing, putting upward pressure on prices and directing capital away from potentially more productive uses" [Explanatory Memorandum page 8]. By incentivising investment in new supply while removing the tax-subsidised advantage of investors in the established market, the Bill "levels the playing field for first home buyers" [Explanatory Memorandum page 8]. This promotes horizontal equity by ensuring that income from assets is not taxed significantly more lightly than income from labour [Judgment].

Finally, the introduction of the Working Australians tax offset and the $1,000 standard deduction for work-related expenses provides tangible cost-of-living relief and significant administrative simplification. These measures "cut red tape and make tax time quicker and easier" [Explanatory Memorandum page 95], reflecting a utilitarian benefit to the majority of the workforce.


Argument Against
Normative Bases
  1. Propertarianism
  2. Individual Autonomy
  3. Value-Neutral / Epistemic Objection

The primary objection to this legislative package centers on the erosion of investment certainty and the potential for unintended consequences in the rental market. Bringing pre-CGT assets—those acquired before 1985—into the tax net for future gains represents a significant shift in the "rules of the game" for long-term holders, potentially undermining the principle of stable property rights [Judgment].

Critics argue that restricting negative gearing to new builds may inadvertently tighten the rental market. By discouraging investment in established dwellings, the policy could lead to a reduction in the overall pool of rental properties, thereby driving up rents for those least able to afford them [Judgment]. The assumption that capital will seamlessly flow into new construction ignores the higher risks and longer lead times associated with development compared to purchasing existing assets.

Additionally, the introduction of a 30% minimum tax on capital gains creates a "tax floor" that may discourage capital mobility. Investors may be less likely to sell assets and reallocate capital to more productive ventures if they face a high minimum tax rate regardless of their current marginal income level. While the Bill seeks to simplify tax for workers, the new "quarantining" rules for rental losses introduce a complex new layer of accounting for property owners, potentially offsetting any gains in simplicity achieved by the standard deduction [Judgment].


Date:

2026-05-28

Status:

Passed Both Houses

Sponsor:

Unspecified

Portfolio:

Treasury

Categories:

Taxation, Housing Policy, Labour

Timeline:
28/05/2026
25/06/2026

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