Australia trims retrospective capital gains tax plan after NZ Super Fund protest

Australia proposed widening its capital gains tax to include assets like wind farms and transmission infrastructure and to backdate the change to 2006, the year the tax was introduced. The New Zealand Superannuation Fund, overseeing NZ$89.9 billion in assets, partnered with Canada’s Public Sector Pension Investment Board to raise concerns that retroactive taxation would undermine Australia’s standing as a stable investment jurisdiction and create an unfair gap between foreign investors and domestic super funds.

After pressure, the government retained the broadened asset base but scrapped the retrospective component, limiting the reform to future transactions from October 1. New Zealand’s Inland Revenue, which initially withheld its briefing over diplomatic sensitivities, warned the original proposal could erode confidence in Australia and shift capital flows toward New Zealand. Officials also noted that only renewable-energy assets would retain a concession, raising further competitiveness issues.