Honestly, the confusion is understandable because even some CAs are still catching up. Let me break it down practically for your salary range.
First, the big one — the new tax regime is now truly the default. If you don't tell your employer anything, they'll deduct TDS under new regime automatically. So if you want old regime, you have to explicitly opt in. Many people are missing this and then scrambling at ITR time.
For a ₹10-12 LPA person, here's what changed that actually matters:
**Slabs under new regime** got more generous. Up to ₹3 lakh is zero tax now. Then 5% from ₹3-7L, 10% from ₹7-10L, 15% from ₹10-12L, 20% from ₹12-15L, and 30% above that. With the ₹75,000 standard deduction still intact under new regime, if your gross is around ₹12L you're paying significantly less tax than before.
**80C — this is where your colleague is half right.** Under new regime, yes, 80C deductions don't apply. PPF, ELSS, LIC premiums — none of it reduces your taxable income if you're in new regime. But old regime still has 80C alive and well.
**HRA** — same story. Only available in old regime.
**Standard deduction** increased to ₹75,000 from ₹50,000. This applies in new regime too, which is actually a good improvement.
Here's the thing — the real question for you is which regime makes sense. At ₹10-12 LPA with a rented house in Bangalore, you might still benefit from old regime if your HRA exemption is substantial. Do a quick calculation: take your rent, apply HRA formula, add 80C of ₹1.5L, NPS employer contribution if any, and see if old regime tax is lower than new regime tax.
For most people at your salary without a home loan, new regime is now actually better or at worst equal. But if you have a ₹40-50L home loan, old regime might still win.
One thing most people get wrong — they assume new regime means stop all 80C investments. Don't do that. PPF is still a great debt instrument. ELSS is still a solid equity fund. Just invest in them for returns, not tax saving. NPS Tier 1 still gives you ₹50,000 deduction under 80CCD(1B) even in new regime — most people forget this.
My recommendation: use ClearTax's free calculator, plug in your numbers for both regimes, and decide by July. Don't wait for your CA to 'watch and see.'