India's New Income Tax Act 2025 is Live — 15 Changes Every Investor Must Know (April 2026)
If you filed your income tax return last year using terms like Assessment Year and Previous Year — those terms no longer exist in Indian law from April 2026. Here is what changed and what it means for you as an investor. 1. New Income Tax Act, 2025 Comes into Effect The old Income Tax Act, 1961 is being replaced by a new, simplified Income Tax Act from Tax Year starting 1 April 2026 . Important note — the ITR you will file this July 2026 for income earned in FY 2025-26 still follows the old 1961 Act rules. The new Act applies to income earned from April 1 2026 onwards. 2. “Assessment Year” and “Previous Year” Replaced by “Tax Year” Earlier there were two confusing terms: Previous Year Assessment Year Now there will be only Tax Year , which means simply: 1 April to 31 March This makes the system easier to understand. 3. Fully Pre-Filled ITR Forms Your ITR will already have most information filled: Salary income Interest income Mutual fund capital ...