Prasenjit Bhowmik 
India’s income tax framework is undergoing significant changes this March, with crucial deadlines converging and the new Income Tax Act, 2025 set to take effect from April 1, 2026. Taxpayers, businesses, and professionals must prepare for compliance obligations that will influence both domestic and international filings.
Advance Tax Final Instalment – March 15, 2026
The final instalment of advance tax for FY 2025–26 is due by Sunday, March 15, 2026.
- Applicability: Individuals and businesses with net tax liability exceeding ₹10,000 after TDS/TCS credits.
- Payment flexibility: Online portals remain operational despite the deadline falling on a Sunday.
- Impact: Ensures timely revenue collection for the government and avoids interest under Sections 234B and 234C.
Foreign Tax Credit (FTC) Filing – March 31, 2026
Indian residents earning foreign income must file Form 67 by March 31, 2026 to claim FTC for FY 2024–25.
- Purpose: Relief from double taxation under DTAAs.
- Risk: Non-filing may lead to denial of FTC benefits.
- Global relevance: Strengthens India’s compliance with international tax norms.
Budget 2026 – Income Tax Reforms
The Union Budget 2026 introduced sweeping reforms under the Income Tax Act, 2025, effective April 1, 2026.
- Simplification: Redundant provisions removed, language modernized.
- ITR filing: Correction window extended until March 31 each year.
- Corporate tax: MAT reduced, STT increased to balance revenue.
- Crypto taxation: Stricter reporting norms and penalties.
- Foreign asset disclosure: Special compliance route for small taxpayers.
Comparative Overview of Compliance Requirements
| Requirement | Deadline/Effective Date | Key Impact |
|---|---|---|
| Advance Tax (Final Instalment) | March 15, 2026 | Mandatory if liability > ₹10,000 |
| Foreign Tax Credit (Form 67) | March 31, 2026 | Relief from double taxation |
| ITR Correction Window | March 31, 2026 | Extended compliance flexibility |
| New Income Tax Act, 2025 | April 1, 2026 | Simplified tax law framework |
| Crypto Reporting Penalties | April 1, 2026 | Stricter compliance enforcement |
Analytical Insights
- March crunch: Multiple deadlines make March a high-pressure month for taxpayers.
- Digital facilitation: Online systems ensure compliance even on non-working days.
- Global taxpayers: FTC filing emphasizes India’s integration with global tax practices.
- Future outlook: The new Act promises reduced litigation, simplified compliance, and enhanced transparency.
Disclaimer
This article is intended for informational purposes only and does not constitute professional tax advice. Readers should consult certified tax professionals or official government notifications before making financial or compliance-related decisions. The information provided is based on current updates as of March 2026 and may be subject to change.
