International Taxation Ready Reckoner is a practice-oriented guide to taxing cross-border transactions under the new Income-tax Act 2025, as amended by the Finance Act 2026 and read with the Income-tax Rules 2026. Designed as a true reckoner rather than a sprawling commentary, it restates the entire field in the new statute’s language and section numbers, enabling advisers trained on the 1961 Act to shift to the new framework without losing their footing. It is built around the questions professionals actually face: Is this income taxable in India? How do the IT Act and the DTAA interact? Does the treaty benefit survive PE, GAAR and the PPT? It answers them through a repeatable method: read the residence position, read the treaty, then work through each income stream under both the Act and the DTAA, side by side. Across 25 chapters in five practical blocks, it draws on the UN and OECD Model Conventions, India’s bilateral treaties, up-to-date case law and an end-to-end case study. Authored by CA. Daksha Baxi and Adv. Surajkumar Shetty, this 4th Edition is the dependable first reference for CAs, tax lawyers, in-house teams and anyone responsible for withholding tax on payments to non-residents.