This book is the definitive, annotated compendium of the Income-tax Rules, including all amendments notified up to the IT (Amendment) Rules 2026. Each rule is annotated with landmark judicial pronouncements from the Supreme Court, High Courts, and the ITAT, alongside CBDT Circulars, Notifications, and Instructions—placed at the exact point of contextual relevance. The book features detailed action points attached to prescribed forms, comprehensive depreciation rate tables from AY 1984-85 onwards, the compiled text of related law provisions, and associated rules and schemes, including the e-Dispute Resolution Scheme 2022. Rules amended during 2024–2026 are marked in italics for quick identification. This publication functions as a comprehensive working reference for tax practitioners, advocates, corporate compliance teams, income-tax officers, academic researchers, and non-resident assessees.