Why This Matters Right Now
Every year around this time, I get a flood of messages asking some version of the same question: "Which tax regime should I file under?" And almost always, the person asking has already made up their mind — they've heard the "₹12 lakh zero tax" announcement and assumed new regime is obviously better for everyone.
It isn't. Not for everyone. I've seen clients in the ₹16–22 lakh income range save ₹40,000–₹60,000 a year by carefully staying in the old regime — money they would have simply left on the table by defaulting to new regime without running the numbers. I've also seen people insist on old regime at ₹30 lakh income, refuse to switch, and overpay by over a lakh annually because they never did the calculation.
The regime choice is one of the rare financial decisions that's entirely reversible every year. You're not locked in permanently. You can recalculate every April and switch. But you have to calculate — and you have to do it before July 31.
The Filing Deadline
The ITR filing deadline for FY 2025-26 (AY 2026-27) is July 31, 2026 — about seven weeks away. Miss it, and you lose the ability to choose the old regime for this financial year. New regime becomes mandatory for belated returns. This is not a technicality you can get around.
The New Regime in Plain English
The new regime, with the Budget 2025 changes, is genuinely good for a large section of salaried India. Here is what it actually offers:
The tax slabs (FY 2025-26)
| Annual Taxable Income | Tax Rate | Max Tax in This Slab |
|---|---|---|
| Up to ₹4 lakh | 0% | Nil |
| ₹4L to ₹8L | 5% | ₹20,000 |
| ₹8L to ₹12L | 10% | ₹40,000 |
| ₹12L to ₹16L | 15% | ₹60,000 |
| ₹16L to ₹20L | 20% | ₹80,000 |
| ₹20L to ₹24L | 25% | ₹1,00,000 |
| Above ₹24L | 30% | — |
| 4% health and education cess applies on total tax. Surcharge applies above ₹50L and ₹1 crore. | ||
The ₹12.75 lakh zero-tax threshold
Here is the arithmetic that everyone is talking about. For a salaried employee under the new regime:
- Standard deduction: ₹75,000 (this is the only deduction allowed for salaried)
- Section 87A rebate: up to ₹60,000 if net taxable income does not exceed ₹12 lakh
- Result: Gross salary up to ₹12.75 lakh → net taxable income ₹12 lakh → tax ₹60,000 → rebate ₹60,000 → zero tax payable
This is a real and meaningful benefit. If your CTC is below ₹13 lakh and you don't have exceptional deductions, the new regime is almost certainly the right choice — the calculation barely needs running.
What the new regime does NOT give you
No HRA exemption. No Section 24(b) home loan interest deduction. No 80C deductions (ELSS, PPF, insurance premiums, home loan principal). No 80D health insurance deduction. No LTA. No 80CCD(1B) NPS voluntary contribution. The only real deductions are the ₹75,000 standard deduction and employer NPS under 80CCD(2) — more on that below.
What the Old Regime Still Gives You
The old regime's tax slabs are steeper — 30% kicks in from ₹10 lakh instead of ₹24 lakh. That sounds terrible, and at face value it is. But the old regime offers deductions that, if you have them, can pull your taxable income down substantially.
The old regime slabs
| Annual Taxable Income | Tax Rate |
|---|---|
| Up to ₹2.5 lakh | 0% |
| ₹2.5L to ₹5L | 5% |
| ₹5L to ₹10L | 20% |
| Above ₹10L | 30% |
| Section 87A rebate: ₹12,500 if net taxable income ≤ ₹5L. Standard deduction: ₹50,000. | |
The 30% rate from ₹10 lakh sounds punishing. But if your deductions bring taxable income below ₹10 lakh, you're taxed at 5–20%, which is where the old regime can occasionally beat the new one.
The Deductions That Tip the Balance
These are the deductions that matter most — the ones large enough to actually change the outcome of the comparison:
- HRA Exemption (Section 10(13A)) If you rent your home, this is often the single biggest deduction. The exempt amount is the lowest of: (a) actual HRA received, (b) 50% of basic salary for metro cities (40% for others), or (c) rent paid minus 10% of basic. For someone paying ₹25,000/month rent in Mumbai on a ₹10 lakh basic, this can be ₹2–2.5 lakh or more annually. This exemption doesn't exist in the new regime.
- Home Loan Interest — Section 24(b) Capped at ₹2 lakh per year for self-occupied property. If you have a home loan with significant interest outstanding (typically the first 8–12 years), this is a ₹2 lakh deduction that vanishes under the new regime. For someone in the 30% tax bracket, that's ₹60,000 in direct tax savings.
- 80C Deductions — ₹1.5 lakh limit Covers EPF employee contribution (which happens automatically), life insurance premiums, PPF contributions, ELSS investments, home loan principal repayment, NSC, children's tuition fees. Most salaried people exhaust the ₹1.5 lakh limit automatically through EPF alone. This entire deduction disappears in the new regime.
- 80D — Health Insurance Premium Up to ₹25,000 for self and family; additional ₹25,000 (or ₹50,000 if parents are senior citizens) for parents' insurance. Total up to ₹75,000 if parents are senior citizens. A meaningful deduction that the new regime eliminates.
- 80CCD(1B) — Voluntary NPS An additional ₹50,000 deduction for voluntary NPS contributions, over and above the 80C limit. Only available in old regime. Worth doing only if it tips the balance in old regime's favour — investing in NPS just for this deduction without checking the math is not necessarily sensible.
The key insight
The total of all old regime deductions is capped by their individual limits. At most, a salaried person can realistically claim: ₹50,000 (std) + ₹1.5L (80C) + ₹75K (80D with senior parents) + ₹50K (NPS) + ₹2L (home loan interest) + ₹2–3L (HRA depending on rent). That's ₹7–8.5 lakh in total deductions — and only if you actually have and can claim all of these. Most people have ₹3–5 lakh.
Four Real-World Examples — With Actual Tax Numbers
Let me walk through four profiles that cover most of the salaried situations I encounter. These aren't hypotheticals — they represent combinations I see regularly.
Meghna Sharma, 27
Software Developer, Bengaluru • CTC ₹10 lakh • No home loan
The calculation
- Old regime: Deductions = ₹50K std + ₹94K HRA + ₹1L (80C) + ₹10K (80D) = ₹2.54L. Taxable = ₹7.46L. Tax = ₹12,500 + 20% of ₹2.46L = ₹61,700. After 4% cess = ₹64,168.
- New regime: Taxable = ₹10L − ₹75K = ₹9.25L. Tax = ₹20K + ₹40K + ₹12,500 = ₹72,500. 87A rebate = ₹60,000 (taxable ≤ ₹12L). Net tax = ₹12,500. After cess = ₹13,000.
Suresh Rangan, 38
IT Manager, Mumbai • CTC ₹18 lakh • Renting + active home loan
The calculation
- Old regime deductions: ₹50K (std) + ₹2.1L (HRA on ₹25K/month rent, basic ₹9L) + ₹2L (Section 24b) + ₹1.5L (80C maxed) + ₹50K (80D, self + parents) + ₹50K (NPS 80CCD1B) = ₹7.1L
- Old taxable = ₹10.9L. Tax = ₹12,500 + ₹1,00,000 + 30% of ₹90K = ₹1,39,500 → after cess = ₹1,45,080.
- New regime taxable = ₹17.25L. Tax = ₹20K + ₹40K + ₹60K + 20% of ₹1.25L = ₹1,45,000 → after cess = ₹1,50,800.
Vikram Sinha, 45
Senior Manager, Hyderabad • CTC ₹28 lakh • Owns home, loan nearly paid off
The calculation
- Old regime deductions: ₹50K (std) + ₹2L (home loan interest) + ₹1.5L (80C) + ₹50K (80D) + ₹50K (NPS) = ₹5L. No HRA because he owns the property he lives in.
- Old taxable = ₹23L. Tax = ₹12,500 + ₹1,00,000 + 30% of ₹13L = ₹5,02,500 → after cess = ₹5,22,600.
- New regime taxable = ₹27.25L. Tax = ₹20K + ₹40K + ₹60K + ₹80K + ₹1L + 30% of ₹3.25L = ₹3,97,500 → after cess = ₹4,13,400.
Malini Nair, 42
Finance VP, Pune • CTC ₹40 lakh • Renting + home loan on second property
Why deductions stop helping at high income
- Old regime deductions: ₹50K std + ₹2.8L HRA + ₹2L home loan interest + ₹1.5L (80C) + ₹50K (80D) + ₹50K (NPS) = ₹7.3L
- Old taxable = ₹32.7L. The 30% rate applies from ₹10L onwards. Tax = ₹12,500 + ₹1L + 30% of ₹22.7L = ₹7,93,500 → after cess = ₹8,25,240.
- New regime taxable = ₹39.25L. The 30% rate kicks in only above ₹24L. Tax = ₹7,57,500 → after cess = ₹7,87,800.
The NPS Employer Deduction — Available in Both Regimes
This is something genuinely useful that many salaried employees don't know about, and their HR departments often don't proactively tell them.
Under Section 80CCD(2), your employer's contribution to your NPS account — up to 14% of your basic salary — is fully deductible even under the new tax regime. This is not the same as your voluntary contribution (80CCD(1B)), which is only deductible under old regime. This is the employer-side contribution to NPS.
How this works in practice
If your basic salary is ₹8 lakh per year and your employer agrees to restructure your compensation to include a 10% NPS contribution (₹80,000/year) — this ₹80,000 is deductible from your taxable income even under the new regime. For someone in the 20% tax bracket, that's ₹16,000 in direct annual tax savings. For someone in the 30% bracket, it's ₹24,000. The employer contribution still gets invested in NPS for your retirement.
The catch: your employer needs to offer this as part of your CTC restructuring. If your company allows salary restructuring, ask your HR department specifically about restructuring a portion of your CTC into employer NPS contribution under 80CCD(2). Many companies offer this — most employees simply don't ask.
The July 31 Deadline — This Is Not Optional
The Income Tax Act is unambiguous here. If you want to opt for the old tax regime for FY 2025-26, you must file your ITR on or before July 31, 2026. File after July 31, and you are automatically placed in the new regime. There is no way to opt for the old regime in a belated return.
I bring this up because every year I see people who have done the calculation, confirmed that old regime saves them ₹40,000–₹60,000, and then simply procrastinate until August. They pay the penalty of an extra month's salary in additional tax. Set a reminder now.
Two separate decisions
Note that your TDS during the financial year (April 2025 to March 2026) was deducted based on whichever regime you declared to your employer at the start of the year. Your ITR filing can change that choice for the final settlement — if old regime saves more, you can claim the excess TDS as a refund by filing before July 31. But again, only if you file on time.
The Three-Question Decision Framework
Rather than running full calculations for every scenario, these three questions will tell most people what they need to know:
- Is your gross income below ₹13 lakh? If yes: choose new regime. Zero or near-zero tax. Old regime cannot compete at this income level regardless of deductions. This is a firm answer.
- Are you in the ₹13–22 lakh range AND do you have at least ₹6–7 lakh in total deductions (HRA + home loan + 80C + 80D + NPS combined)? If yes: run the actual calculation with your specific numbers. Old regime might save you ₹10,000–₹40,000 depending on the exact combination. Worth checking — but the margin may not justify the added compliance complexity.
- Is your income above ₹25 lakh? Unless your deductions are extraordinary (above ₹9–10 lakh), new regime will almost certainly be better. The old regime's 30% slab from ₹10 lakh makes it very hard to win at high incomes with capped deductions.
The honest answer
The old regime wins for a specific profile: ₹15–22 lakh income, renting in a metro city (high HRA claim), active home loan with substantial interest component, 80C maxed, health insurance for self and parents. If you tick all of these boxes, old regime is still worth choosing. If you tick fewer than three, new regime is almost certainly better.
Not Sure Which Regime Applies to You?
Your specific numbers matter. The margin between old and new regime can be ₹5,000 or ₹1,00,000 depending on your exact income structure. A one-time financial review can give you the clarity to file confidently — and stop overpaying year after year.
Frequently Asked Questions
If I chose the wrong regime through TDS, can I correct it when filing ITR?
Yes, absolutely. The regime declaration you give your employer at the start of the year determines how TDS is deducted from your salary. But when you file your ITR, you can switch to the other regime — and the ITR calculation will determine whether you get a refund (if old regime results in lower tax) or have a tax demand (if you under-declared). The ITR filing is the final settlement. This is one of the more useful flexibilities in the system.
Can I switch between regimes every year?
For salaried employees with no business income, yes — you can switch regimes every year. Simply declare your choice to your employer at the start of each financial year, and then finalise it in your ITR. Business owners and professionals with business income have different rules: once they switch to the new regime, they can only switch back once. Salaried employees don't have this restriction.
My employer defaulted me to new regime. Can I still choose old regime for FY 2025-26?
Yes — file your ITR under old regime before July 31, 2026. The ITR will recalculate your tax under old regime, and if it's lower than what was deducted via TDS, you'll get a refund. The employer's TDS default does not lock you into new regime for your ITR filing. Just don't miss the July 31 deadline.
Is HRA exemption available in new regime if I work from home?
No. HRA exemption is not available under the new regime, regardless of whether you receive HRA as part of your salary structure or how you work. If you are under the new regime, the HRA component in your salary is fully taxable (though the standard deduction of ₹75,000 partially offsets this). The HRA deduction is an old regime-only benefit.
Does it make sense to invest in PPF or buy insurance just to claim 80C in old regime?
Only if it makes the old regime genuinely cheaper after doing the full calculation. Making a ₹1.5 lakh investment purely to save ₹30,000 in tax (at 20% slab) makes sense only if you were going to invest that money anyway — PPF is a reasonable long-term investment on its own. But buying a ULIP or insurance policy just for the 80C deduction is almost never the right move. The investment quality and tax benefit should be evaluated together, not separately.
What happens with the home loan principal repayment deduction (80C) in new regime?
Under the new regime, the principal repayment component of your EMI is not deductible under 80C. Only the interest component is relevant for comparison (Section 24b), and that too only exists in the old regime. So if you have a home loan and you were claiming both the principal (80C) and the interest (Section 24b) in old regime, both of those deductions disappear under new regime. This is typically a ₹3–4 lakh combined deduction that you lose — which is why people with active home loans should always run the calculation before defaulting to new regime.
