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March 2026 marks the end of Financial Year (FY) 2025–26, making it a critical deadline for taxpayers to complete key financial and income-tax related actions. Missing these timelines can lead to higher penalties, loss of deductions, or non-compliance issues. Below are some of the activities to be completed before March 2026
To know the list of activities you should have performed after Jan 01st 2025, refer Money and taxes: Checklist After January 01st 2025
To know the list of activities you should have performed before Dec 31st 2025, refer Money and taxes: Checklist before December 31st

Income Tax Return Filing- Updated Return
After this date, filing an updated return for this year will no longer be allowed. | |
Revised Additional Tax on ITR-U (Post 31 March 2026)If updated returns are filed after 31 March 2026, the additional tax payable for other assessment years will be as follows:
Earlier compliance helps minimize penalty exposure. Refer Updated Return (ITR-U) u/s 139(8A) Income Tax Guide for more information | |
Tax Planning for FY 2025–26As Financial Year 2025–26 is nearing its end, taxpayers have limited time left to complete tax-saving investments. Proper tax planning is essential to reduce tax liability and maximize eligible deductions before the financial year closes on 31/03/2026. Taxpayers opting for the old tax regime must complete eligible investments like deductions under Sections 80C, 80D, 80G, 80CCD, 24 etc on or before 31/03/2026 to claim tax benefits. Plan your tax-saving investments with EZTax.in to select the most beneficial tax regime and optimize your tax liability before the deadline. Learn more on Best Income Tax Saving Investment Options in India | |
Advance Tax Payment for FY 2025-2615th March 2026 / 31st March 2026 is the due date for payment of advance taxes for last quarter of FY 2025-26. The taxpayers are required to pay the advance tax before the due date to avoid interest u/s 424 of IT Act 2025 (u/s 234B of IT Act 1961). Learn more on Advance Tax: What, When & How to Pay? | |
Application for Lower deduction of TDS (Form 13)NRI's who are selling the properties in FY 2025-26 can apply for lower deduction of TDS by 15th March 2026. Otherwise, they need to file the tax returns and claim the refund once the IT Filing starts EZTax specializes in NRI TDS planning & Form 13 filing. Learn more on How to Submit Form 13 ? | |
Tax Loss harvesting
Plan your tax loss harvesting effectively with EZTax.in to optimize capital gains tax before year-end. Learn more on Taxation on — Futures & Options (FOs) Trading | |
Opt for Composition Scheme for FY 2026-27The taxpayer who wants to convert from regular GST to Composition scheme for FY 2026-27 can change between 05th Feb 2026 to 31st March 2026. As this is a 1-time window given by GST department, the desired taxpayers are required to utilize the option EZTax evaluates whether composition scheme suits your business model. Refer Indian Budget 2026 | Pre-Budget Expectations for more information | |
TDS/TCS correction from FY 2018-19(Q4) to FY 2023-24 (Q3)TDS/TCS corrections can be filed within 2 years from the end of the financial year in which the statement is required to be filed as per new changes in Income Tax Act. As per this, the taxpayers are required to file their TDS/TCS corrections before 31st March 2026. EZTax helps with full TDS reconciliation and correction filing. Refer TDS or TCS Correction for more information |
Disclaimer: This article provides an overview and general guidance, not exhaustive for brevity. Please refer Income Tax Act, GST Act, Companies Act and other tax compliance acts, Rules, and Notifications for details.