Organization	12 Months Ended
Jun. 30, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	Note 1. Organization Nature of operations and corporate information IREN Limited (“Company” or “Parent Entity”) and the entities it controlled at the end of, or during, the year (collectively the “Group”) is a vertically integrated AI Cloud platform, d data centers, compute and software for AI training and inference.

The entire disclosure for the nature of an entity's business, major products or services, principal markets including location, and the relative importance of its operations in each business and the basis for the determination, including but not limited to, assets, revenues, or earnings. For an entity that has not commenced principal operations, disclosures about the risks and uncertainties related to the activities in which the entity is currently engaged and an understanding of what those activities are being directed toward.

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