What Changed in the Legal Framework
- The Income-tax Act, 1961 was formally repealed effective 01 April 2026; the Income-tax Act, 2025 is the governing law for all Tax Years 2026-27 and beyond. (incometax.gov.in)
- Transitional provisions ensure that for all tax years beginning before 1 April 2026, assessments, appeals, notices etc. continue under the old system. That means any income earned during FY 2025-26 (Assessment Year 2026-27) is handled under the old Act. (incometax.gov.in)
Key Compliance Deadlines & Return Types
- Filing for AY 2026-27 (income in FY 2025-26) must still use ITR forms prescribed under the old Act (ITR-1, ITR-2 etc.), with due dates 31 July 2026 for most returns, or 31 August 2026 where audit obligations apply. (incometax.gov.in)
- For Tax Year 2026-27 income, advance tax obligations, TDS obligations, and return filing under the new Act begin from 1 April 2026 onwards—but the actual return filing will take place well after the close of that tax year. (incometax.gov.in)
New Features to Monitor
- Concept of ‘Tax Year’ replaces “Previous Year”/“Assessment Year” terminologies — simplifying or aligning references throughout. (incometax.gov.in)
- Consolidation of presumptive taxation schemes like Sections 44AD, 44ADA, 44AE into a single section in the new Act (Section 58). (incometax.gov.in)
- Unified section for returns: original, belated, revised, updated returns all fall under Section 263 in the 2025 Act. Timespans for revised / updated returns are different. (incometax.gov.in)
What to Do Right Now: Actionable Steps
- Audit your income types for FY 2025-26: ensure all foreign income, dividends, capital gains etc. are properly reported under old Act forms. Misreporting due to unfamiliarity with rules may draw notices.
- Watch Forms and Rules: Rules (e.g. Income-tax Rules, 2026) have been amended (e.g. via Notification No. 97/2026) for search and requisition cases, new appendices etc.—read the specific Rules affecting your case. (incometax.gov.in)
- Keep documentation: For those seeking benefits in IFSC (per other article), but also general taxpayers, maintain proof of foreign asset disclosure, receipts, TDS certificates etc.
- Plan audits appropriately early, especially for businesses. Form ITR-5, ITR-7 etc. have new / updated utilities and formats announced recently. (incometax.gov.in)
Enforcement and Penalties
- Failure to comply with new rules on TDS, failure to submit Form 1(N) where required, or misapplication of exemptions may lead to disallowance of deductions, demand notices, or penalties. The retrospective nature of some changes means even earlier payments could be under scrutiny.
- Belated and updated return time-limits have changed under new Act: updated return may be filed within 48 months from end of following financial year. (incometax.gov.in)
Practical Example
Case of Mr. X with mix of foreign income + service payments
- FY 2025-26 (ends 31 March 2026): use old Act for return in July 2026; include foreign dividends, interest etc. under Schedule FA / equivalent under old forms.
- From 1 April 2026: any income in TY 2026-27 reported under new Act; make sure foreign asset disclosures continue; for IFSC-related income use new rules if eligible.
Bottom line: The transition to the 2025 Act simplifies structure and introduces new kinds of exemptions (especially IFSC-related), but neglecting the rules or missing deadlines can be costly. Start early, review your eligibility, document everything.