Business organisations in Australia unite to oppose proposed capital gains tax changes, urging scrutiny through a Senate inquiry. Reporting from PerthNow and Michael West describes how the groups argue the federal government is moving quickly on the measures, leaving businesses insufficient time to assess the impact and prepare for any changes. The proposed tax settings are described as contentious, with business representatives seeking to have the issue examined formally rather than debated only through consultations or announcements. Both outlets state that the dispute is expected to feature in the Senate inquiry process, where submissions and evidence can be presented by industry and business stakeholders. While the coverage focuses on the business campaign against the changes and the claim of rushed implementation, it does not include detailed positions from the federal government within the supplied excerpts. Overall, the reports agree that business groups are coordinating their efforts and using parliamentary scrutiny to challenge or influence the proposed capital gains tax reforms.