New Delhi, March 31, 2026: Today marks the final day of the Financial Year 2025-26 in India — a crucial deadline that every taxpayer, investor, and business owner must pay close attention to. March 31, 2026 is not just the last day of the fiscal year; it is the cutoff for a range of important tax-saving investments, compliance filings, and financial decisions whose window closes permanently at midnight tonight. Missing today’s deadline could mean losing valuable deductions, paying penalties, and facing interest charges that will add to your tax burden for the year.

The financial year in India runs from April 1 to March 31. All income earned, investments made, and expenses incurred between April 1, 2025 and March 31, 2026 fall within FY 2025-26. The corresponding Assessment Year (AY) will be 2026-27. Today is your last chance to take advantage of any pending tax-saving opportunities for this fiscal year. Here is a comprehensive guide to everything you need to do before midnight tonight.

1. Last Day for Section 80C Tax-Saving Investments

Section 80C of the Income Tax Act allows deductions up to Rs 1.5 lakh per year on specified investments and expenses. Today, March 31, 2026, is the absolute last day to make these investments for FY 2025-26. If you have not yet utilised your full Rs 1.5 lakh Section 80C limit, you must invest before tonight. Qualifying instruments include:

• ELSS (Equity Linked Savings Schemes): Tax-saving mutual funds that offer the dual benefit of potential market returns and tax deductions. With a 3-year lock-in period, ELSS is popular for long-term wealth creation.
• PPF (Public Provident Fund): A government-backed savings scheme with a 15-year tenure offering tax-free returns. Contributions made by March 31 will qualify for FY25-26 deductions.
• Life Insurance Premiums: Premiums paid for life insurance policies covering yourself, your spouse, or dependent children qualify under 80C.
• NPS (National Pension System): Contributions to NPS Tier-1 accounts qualify under Section 80C and additionally under Section 80CCD(1B), allowing an extra Rs 50,000 deduction over and above the 80C limit.
• Tax-Saving Fixed Deposits: 5-year tax-saving FDs with banks qualify under 80C. Note that premature withdrawals are not permitted.
• Sukanya Samriddhi Yojana: For parents of girl children, contributions to SSY accounts qualify under 80C and the returns are fully tax-free.

2. Advance Tax Payment Deadline

If you have tax liability exceeding Rs 10,000 for the financial year and you earn income beyond just salary (such as from business, profession, capital gains, or other sources), you are required to pay advance tax in four instalments during the year. The final instalment of advance tax was due on March 15, 2026. If you missed it or underpaid, today is critical: paying any outstanding advance tax today rather than waiting for the final ITR deadline will help minimise interest liability under Sections 234B and 234C, which charge 1% per month on the outstanding tax. Taxpayers who pay adequate advance tax before March 31 significantly reduce their interest burden.

3. Last Chance to File Updated Income Tax Return (ITR-U)

The Income Tax Department allows taxpayers to file an Updated Return under Section 139(8A) to correct errors or omissions in previously filed returns. March 31, 2026 could be the last date to file updated returns for certain assessment years. If you need to disclose any income that was missed in your original return, or correct any errors that may expose you to scrutiny, today may be your final opportunity to do so voluntarily. Filing an updated return and paying the applicable additional tax is far preferable to facing a tax notice and penalty later. Taxpayers are strongly advised to consult their chartered accountant immediately if they believe their earlier returns had any omissions or errors.

4. GST Annual Return and Compliance

For businesses registered under the Goods and Services Tax (GST), March 31 is a critical compliance date. Businesses must ensure that all pending GST returns for FY 2025-26 are filed on time to avoid penalties and interest. Key GST compliance actions required by today include: reconciling input tax credit claims with GSTR-2B data, ensuring that any pending credit notes or adjustments are reflected in the final returns of the financial year, and verifying that e-invoicing requirements are being met. Businesses whose annual turnover exceeds Rs 5 crore must file GSTR-9 (Annual Return) by December 31, 2026, but the underlying data reconciliation must start now while the FY 2025-26 books are fresh.

5. Health Insurance Premium (Section 80D) and Other Deductions

Beyond Section 80C, March 31 is also the last day to make several other deductible payments for FY 2025-26. Section 80D allows deductions of up to Rs 25,000 for health insurance premiums paid for self and family, and an additional Rs 25,000 for premiums paid for parents (Rs 50,000 if parents are senior citizens). If you have not yet paid your health insurance premium for the year, doing so today before midnight will ensure you can claim this deduction. Similarly, donations to eligible charities under Section 80G qualify for deductions, and any donations made today will be eligible for FY 2025-26.

6. Capital Gains Harvesting

Savvy investors use the year-end to engage in “tax-loss harvesting” — selling investments that are currently at a loss to book capital losses that can be set off against capital gains. Similarly, investors who want to “harvest” long-term capital gains of up to Rs 1.25 lakh in equity (which is exempt from tax under the current regime) may want to sell and rebuy qualifying investments before midnight tonight to utilise this exemption for FY 2025-26. Any losses booked today can be carried forward for up to 8 assessment years to set off against future capital gains.

What to Expect in FY 2026-27

As FY 2025-26 closes, taxpayers should also look ahead to the new financial year that begins tomorrow, April 1, 2026. The new financial year will bring the full implementation of several Budget 2026-27 measures announced by Finance Minister Nirmala Sitharaman in February. Key changes include revised tax slab rates under the new tax regime that have been made more attractive to encourage adoption, new rules for TDS on various types of income, and changes in GST rates on selected goods and services. The government’s Viksit Bharat-G RAM G scheme allocation of Rs 95,692 crore for FY 2026-27 will also begin disbursement from April 1.

Today is a day for financial discipline. With the clock ticking toward midnight, every Indian taxpayer should urgently review their financial position for FY 2025-26 and take any necessary actions to minimise their tax liability while remaining fully compliant. A quick call to your chartered accountant, financial advisor, or tax consultant today could save you a significant amount in taxes and penalties. Remember: tax planning done before March 31 is smart planning; tax problems discovered after March 31 are expensive problems. Act before midnight tonight.