March 31 Tax Deadline: Last Chance to Save Tax Under Old Regime

The Clock Is Ticking on Your Tax Savings

March 31, 2026 isn't just another financial year-end. It's potentially the last time you can save tax the way you've always done.

Here's why: the new Income Tax Act 2025 comes into effect from April 1, 2026. Under the new default regime, most of the deductions you've relied on — 80C, 80D, HRA, home loan interest — either disappear or are significantly reduced.

So if you haven't maxed out your tax-saving investments for FY25-26, you have less than 16 days left. Let's make every one count.

Your Complete Tax-Saving Checklist

1. Section 80C — Up to ₹1.5 Lakh Deduction

This is the big one. Under Section 80C, you can claim deductions up to ₹1,50,000 by investing in any of these:

Investment	Lock-in	Returns	Best For
ELSS Mutual Funds	3 years	12-15%*	Growth + tax saving
PPF	15 years	7.10%	Safe, tax-free returns
5-Year Tax Saver FD	5 years	6-6.5%	Zero-risk investors
NSC	5 years	7.70%	Guaranteed returns
Sukanya Samriddhi	21 years	8.20%	Girl child savings
Life Insurance	Varies	4-6%	Protection + savings

*ELSS returns are market-linked and not guaranteed.

Pro tip: If you haven't invested the full ₹1.5 lakh yet, ELSS gives you the shortest lock-in (3 years) with the highest potential returns. You can start a SIP today and it counts toward this year's deduction.

Don't forget: Your children's school/college tuition fees (up to 2 children) and home loan principal repayment also count under 80C.

2. Section 80D — Health Insurance Premium

You can claim deductions for health insurance premiums:

• For yourself & family: Up to ₹25,000
• For parents (below 60): Additional ₹25,000
• For senior citizen parents: Additional ₹50,000
• Maximum possible: Up to ₹75,000 total deduction

If you haven't bought or renewed your health insurance policy this year, do it before March 31. It's both smart tax planning and essential protection — especially with digital fraud and health emergencies on the rise.

3. Section 80CCD(1B) — NPS Extra ₹50,000

This is the most underused tax-saving tool. Over and above the ₹1.5 lakh under 80C, you can claim an additional ₹50,000 deduction by investing in the National Pension System.

That's a total of ₹2 lakh in deductions (₹1.5L under 80C + ₹50K under 80CCD(1B)). At the 30% tax bracket, that saves you ₹62,400 in tax.

Use our NPS Calculator to see how much your pension corpus would grow.

4. Section 24(b) — Home Loan Interest

If you have a home loan, you can claim up to ₹2 lakh deduction on interest paid. Make sure you:

• Download your annual interest certificate from your bank
• Submit it to your employer's payroll team
• Include it in your ITR filing

Check your EMI breakdown with our EMI Calculator.

5. PPF & SSY Minimum Deposits

If you have a PPF or Sukanya Samriddhi account, you must deposit the minimum amount before March 31 to keep the account active:

• PPF minimum: ₹500 per year
• Sukanya Samriddhi minimum: ₹250 per year

Missing this deadline can result in account deactivation and penalties. Use our PPF Calculator to plan your deposits.

Advance Tax: March 15 Deadline

Important: If you have tax liability beyond what's deducted at source (TDS), you must pay 100% of your advance tax by March 15, 2026. Missing this deadline means interest charges under Sections 234B and 234C.

This particularly applies to:

• Freelancers and consultants
• People with capital gains from stocks or mutual funds
• Rental income earners
• Anyone with income from multiple sources

Why This Year Is Different: The New Income Tax Act

Starting April 1, 2026, India gets a completely new Income Tax Act. Under the new default regime:

• Section 80C deductions — significantly restricted
• HRA exemption — reduced or eliminated
• Home loan interest (Section 24b) — limited
• Standard deduction — increased to ₹75,000 (from ₹50,000)
• NPS employer contribution — increased to 14% (from 10%)

While the new regime has lower tax rates, it offers far fewer deductions. If you've been using the old tax regime with heavy deductions, this is genuinely your last opportunity to maximise savings the traditional way.

Use our Tax Calculator to compare both regimes and see which saves you more.

8 Things to Do Before March 31

1. Check your 80C status — have you invested the full ₹1.5 lakh?
2. Renew health insurance — claim 80D deduction
3. Top up NPS — grab the extra ₹50K deduction
4. Deposit in PPF/SSY — at least the minimum to keep accounts active
5. Download home loan certificate — claim interest under Section 24(b)
6. Submit investment proofs — give your employer the documents
7. Pay advance tax — due by March 15 to avoid interest
8. Review your ITR plan — decide old vs new regime before the year ends

Quick Action Plan Based on Your Situation

If You Have ₹1.5 Lakh to Invest

Put ₹1 lakh in ELSS (best growth potential, 3-year lock-in) + ₹50,000 in NPS (extra deduction). Total deduction: ₹2 lakh. Tax saved: ~₹62,400.

If You Only Have ₹50,000

Put it all in NPS under 80CCD(1B). This is the most tax-efficient move since it's an additional deduction beyond 80C. Tax saved: ~₹15,600.

If You Want Zero Risk

Open a 5-year tax-saving FD. Guaranteed returns of 6-6.5%, and your principal is completely safe. Combine with PPF for the rest.

Disclaimer: This article is for educational purposes only and does not constitute tax or financial advice. Tax laws are subject to change. Please consult a qualified tax advisor for advice specific to your situation.