
New Delhi, March 24, 2026: The start of the new financial year on April 1, 2026, marks a historic milestone in India’s fiscal history. This date sees the formal transition from the six-decade-old Income Tax Act of 1961 to the Income Tax Act, 2025. While the government has focused on “continuity with simplification,” several structural changes, revised limits, and new compliance requirements will significantly impact salaried employees, investors, and businesses.
Here are the top 10 key income tax changes coming into effect from April 1, 2026.
The biggest change is the complete replacement of the 1961 Act with the Income Tax Act, 2025. This isn’t just a renumbering exercise; it is a structural overhaul aimed at simplifying language and removing redundant provisions. The goal is to reduce litigation and make the tax code more “user-friendly” for the common taxpayer.
In a major move to eliminate confusion, the terms “Previous Year” (PY) and “Assessment Year” (AY) are being retired. From April 1, 2026, India will follow a unified “Tax Year” system.
While tax slabs remain largely unchanged from the previous year, the enhanced Section 87A rebate and Standard Deduction create a massive relief window for the middle class.
After decades of stagnant limits, the new rules provide a long-overdue revision to tax-exempt allowances:
Previously, only the four “metro” cities (Delhi, Mumbai, Kolkata, Chennai) qualified for a 50% HRA (House Rent Allowance) deduction. Starting April 1, 2026, four more cities join this list:
Investors and traders in the derivatives segment will face higher transaction costs. The Securities Transaction Tax (STT) has been revised upward:
The Central Board of Direct Taxes (CBDT) has notified entirely new forms. Familiar forms have been replaced to align with the new Act:
Small business owners and professionals (non-audit cases) get a breather. The deadline for filing ITR-3 and ITR-4 has been extended by a month:
The multi-tier Tax Collected at Source (TCS) structure for the Liberalized Remittance Scheme (LRS) has been simplified:
To prevent the misuse of HRA claims, the new rules introduce a mandatory disclosure. If your annual rent exceeds ₹1 lakh and you are renting from a relative (parents, spouse, etc.), you must now disclose the nature of the relationship and the landlord’s PAN in the new Form 124.
| Change Category | Old Limit/Rule | New Rule (From April 1, 2026) |
| Education Allowance | ₹100 / month | ₹3,000 / month |
| Hostel Allowance | ₹300 / month | ₹9,000 / month |
| STT on Futures | 0.02% | 0.05% |
| TCS (LRS/Tours) | 5% to 20% | Flat 2% |
| ITR-3/4 Deadline | July 31 | August 31 |