May 29, 2026 – 7.00pmA former Treasury insider has accused Jim Chalmers’ department of being selective in using Organisation for Economic Co-operation and Development research to argue the Albanese government’s higher capital gains tax will not deter risky investments.In a staunch defence of the budget on Thursday, Treasury secretary Jenny Wilkinson rejected criticism from business and investors that replacing the 50 per cent discount on capital gains with an inflation indexation model would hurt productive investment and deter risk-taking by companies.Subscribe to gift this articleGift 5 articles to anyone you choose each month when you subscribe.Subscribe nowAlready a subscriber? Fetching latest articles