Here are 20 significant income tax rule changes for the Financial Year 2025–26 (Assessment Year 2026–27). 1. Revised Income Tax Slabs Under New Regime:Effective April 1, 2025, the new tax regime introduces updated slabs ₹0–₹4 lakh: 0%, ₹4–₹8 lakh: 5%, ₹8–₹12 lakh: 10%, ₹12–₹16 lakh15%, ₹16–₹20 lakh: 20%, ₹20–₹24 lakh: 25%, and above ₹24 lakh: […]