The Economy, Stupid The Most Explosive Tax Debate in Australia Is Back
Feb 19, 2026
Cathal Leslie, a Gen Z economist with Treasury, OECD and AI sector experience, and Brendan Coates, Grattan Institute housing and economic security lead, debate Australia’s 50% capital gains tax discount. They explore how the discount shaped investment toward housing, who benefits, reform options like halving or targeting the concession, and likely political outcomes. The conversation focuses on effects for prices, rents and social housing.
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Origin And Logic Of The 50 Percent Capital Gains Discount
- Australia taxes only half of capital gains since 1999, replacing inflation indexing with a flat 50% discount to simplify compliance.
- The Howard-era policy aimed to spur risky investment but instead created a large, broad concession across assets including housing.
Housing Gains Come From External Factors Not Owner Risk
- Housing gains often arise from external forces like population growth or zoning changes rather than owner effort.
- Cathal Leslie argues that because owners can sit passively and reap gains, housing is less risky than startups and thus less deserving of a large discount.
Leverage Multiplies The Value Of The Discount
- The 50% discount combined with full deductibility of investment costs amplified leveraged returns for property investors.
- Brendan Coates notes borrowing 80% with 6% house growth can deliver 25–30% returns, making the discount far too generous.