May 29, 2026 – 4.00pmThe pivot from a flat capital gains tax discount to a complex hybrid indexation model will require a colossal wave of asset valuations and spark a high-stakes scramble to shield past investment gains before the rules change.Hundreds of thousands of taxpayers may seek professional valuations of millions of assets including shares, property, private businesses and collectables ahead of the July 1, 2027 deadline, H&R Block director of tax communications Mark Chapman says.Subscribe to gift this articleGift 5 articles to anyone you choose each month when you subscribe.Subscribe nowAlready a subscriber? Joanna MatherEditor - wealth, work, wellnessJoanna Mather joined the AFR as an education reporter in 2008. She spent four years in the Canberra press gallery before becoming superannuation reporter in 2016, deputy news director in 2021 and wealth editor in 2023.Fetching latest articles