My colleague Rakesh — a 31-year-old software developer at a Noida IT company — paid ₹43,000 more tax last year than he needed to. Not because he cheated. Not because he didn’t file. Because his HR department defaulted him to the new regime without telling him, and he had a home loan that made the old regime significantly better for his income.
He found out in March. After the financial year was already over.
This happens to thousands of salaried Indians every year. The confusion isn’t because people are careless — it’s because the advice online is almost always generic and the real answer depends entirely on 3 specific numbers in your own life.
This article gives you those 3 numbers and shows you exactly how to use them.
What Changed in 2025–26 That Makes This Decision Different Now
The Union Budget 2025 made the new tax regime more attractive than it has ever been. Here is what changed:
The basic exemption limit under the new regime was raised to ₹4 lakh. The rebate under Section 87A was enhanced so that individuals earning up to ₹12 lakh pay zero tax under the new regime. The standard deduction of ₹75,000 was retained under the new regime — meaning anyone earning up to ₹12.75 lakh effectively pays zero income tax if they choose the new regime.
This is a significant shift from previous years when the old regime was clearly better for people with high deductions. The calculation is genuinely closer now — which is exactly why you need to run your own numbers rather than follow generic advice.
The New Tax Regime Slabs for 2025–26
| Income Range | Tax Rate |
|---|---|
| Up to ₹4,00,000 | Nil |
| ₹4,00,001 to ₹8,00,000 | 5% |
| ₹8,00,001 to ₹12,00,000 | 10% |
| ₹12,00,001 to ₹16,00,000 | 15% |
| ₹16,00,001 to ₹20,00,000 | 20% |
| ₹20,00,001 to ₹24,00,000 | 25% |
| Above ₹24,00,000 | 30% |
Standard deduction of ₹75,000 is available under the new regime for salaried individuals and pensioners.
Important: If your income is up to ₹12,00,000 the Section 87A rebate covers your entire tax liability under the new regime. Combined with the ₹75,000 standard deduction, income up to ₹12,75,000 effectively means zero tax.
The Old Tax Regime Slabs for 2025–26
| Income Range | Tax Rate |
|---|---|
| Up to ₹2,50,000 | Nil |
| ₹2,50,001 to ₹5,00,000 | 5% |
| ₹5,00,001 to ₹10,00,000 | 20% |
| Above ₹10,00,000 | 30% |
The old regime allows deductions and exemptions including:
- Standard deduction: ₹50,000
- Section 80C: up to ₹1,50,000
- Section 80D (health insurance): up to ₹25,000 (₹50,000 for senior citizens)
- HRA exemption (if you pay rent)
- Home loan interest under Section 24B: up to ₹2,00,000
- NPS contribution under Section 80CCD(1B): up to ₹50,000
- LTA, education loan interest, and several others
The Real Calculation — 4 Actual Examples
Example 1 — Software Engineer, Pune, ₹14 Lakh CTC
Gross salary: ₹14,00,000 Standard deduction: ₹50,000 (old) / ₹75,000 (new)
Old Regime — with deductions:
- 80C investments (ELSS + PPF): ₹1,50,000
- Health insurance 80D: ₹25,000
- NPS 80CCD(1B): ₹50,000
- Standard deduction: ₹50,000
- Total deductions: ₹2,75,000
- Taxable income: ₹11,25,000
- Tax calculation: ₹12,500 (5% on ₹2.5L) + ₹1,00,000 (20% on ₹5L) + ₹37,500 (30% on ₹1.25L) = ₹1,50,000
- Add 4% cess: ₹6,000
- Total tax old regime: ₹1,56,000
New Regime:
- Standard deduction: ₹75,000
- Taxable income: ₹13,25,000
- Tax calculation: Nil (up to ₹4L) + ₹20,000 (5% on ₹4L) + ₹42,500 (10% on ₹4.25L) + ₹48,750 (15% on ₹1.25L) = ₹1,11,250
- Add 4% cess: ₹4,450
- Total tax new regime: ₹1,15,700
Verdict for this person: New regime saves ₹40,300 per year.
This surprised him. He assumed the old regime was better because he invests in 80C regularly. The math said otherwise.
The Problem Nobody Talks About: Your CTC Is Not Your Taxable Income
Most online tax calculators ask for your “salary.” But your CTC (Cost to Company) and your actual taxable income can differ by ₹80,000 to ₹2,00,000 depending on your employer’s pay structure.
Here’s what most IT company salary slips include that reduces your taxable income — and most people never claim properly:
- HRA — if your company shows HRA separately in your slip AND you pay rent, you can claim exemption. Many employees in Tier-2 cities like Indore, Nagpur, or Lucknow live with parents, pay no rent, and forget to tell their employer — so HRA gets added back to taxable income unnecessarily.
- LTA — Leave Travel Allowance is tax-free twice in a 4-year block if you actually travel. Most employees forget to submit bills.
- Food coupons / Sodexo — Up to ₹26,400 per year is tax-free. If your company offers this and you’re not claiming it, you’re paying tax on money you shouldn’t.
- Professional tax — ₹2,400/year in most states, deductible. Small but real.
Before you even compare regimes — get your actual Form 16 and look at Part B. That’s your real taxable income, not your CTC.
The 3 Numbers That Decide Everything
Forget the long comparison tables. Your regime decision comes down to 3 numbers:
Number 1: Your gross taxable salary after standard deduction (Annual CTC minus HRA exemption if applicable, minus standard deduction ₹75,000 new / ₹50,000 old)
Number 2: Your real 80C investments Not what you plan to invest. What you actually invest every year. EPF contributions from your salary already count toward your ₹1.5L limit — most people don’t realise their PF alone covers ₹60,000–₹90,000 of it.
Number 3: Do you pay rent OR have a home loan? If neither — new regime is almost certainly better and you can stop calculating. If yes to either — keep reading.
The Tier-2 City vs Metro Problem
This is the angle nobody covers.
A ₹12 lakh salaried person in Bengaluru or Mumbai paying ₹20,000/month rent has an HRA exemption of approximately ₹1,44,000–₹1,80,000 per year. That single deduction can flip the entire regime decision.
The same ₹12 lakh person in Jaipur, Bhopal, or Patna paying ₹8,000/month rent has an HRA exemption of only ₹48,000–₹60,000. For them, new regime is almost always better.
The “new regime is better for most people” advice is written for Tier-2 India. If you live in a metro and pay serious rent, your situation is different.
Metro cities (40% HRA calculation applies): Mumbai, Delhi, Chennai, Kolkata Non-metro (50% for employer in metro but employee in non-metro — or 40% calculation): Every other city
Government Employee vs Private Sector: Different Answer
Government employees have one massive difference: NPS (National Pension Scheme) is mandatory, and employer NPS contribution up to 14% of basic is tax-free under the new regime too (Section 80CCD(2)).
This matters. A central government employee with ₹15 lakh salary may find the old regime less useful because:
- Their NPS benefit exists in BOTH regimes
- They may not have a home loan (government quarters)
- Their HRA situation may be different (accommodation provided)
Private sector employees get employer NPS contribution deduction too under 80CCD(2) in both regimes — but many HR departments don’t offer this or don’t explain it.
Example 2 — School Teacher, Mumbai, ₹6.5 Lakh
Gross salary: ₹6,50,000
Old Regime:
- Standard deduction: ₹50,000
- 80C (PF + LIC): ₹1,20,000
- Health insurance 80D: ₹20,000
- Total deductions: ₹1,90,000
- Taxable income: ₹4,60,000
- Tax: ₹21,000 (5% on ₹2.1L)
- Add 4% cess: ₹840
- Total tax old regime: ₹21,840
New Regime:
- Standard deduction: ₹75,000
- Taxable income: ₹5,75,000
- Tax: Nil up to ₹4L + ₹8,750 (5% on ₹1.75L) = ₹8,750
- But Section 87A rebate covers tax up to ₹12L income
- Total tax new regime: ₹0
Verdict for this person: New regime saves ₹21,840 — she pays zero tax.
She was filing old regime every year and paying over ₹20,000 unnecessarily.
Example 3 — Marketing Manager, Delhi, ₹22 Lakh with HRA
Gross salary: ₹22,00,000 Monthly rent paid: ₹25,000 (₹3,00,000 per year)
Old Regime:
- Standard deduction: ₹50,000
- 80C: ₹1,50,000
- 80D: ₹25,000
- HRA exemption: approximately ₹1,80,000 (depends on actual calculation)
- Home loan interest 24B: ₹2,00,000
- NPS 80CCD(1B): ₹50,000
- Total deductions: ₹6,55,000
- Taxable income: ₹15,45,000
- Tax: ₹12,500 + ₹1,00,000 + ₹1,63,500 (30% on ₹5.45L) = ₹2,76,000
- Add 4% cess: ₹11,040
- Total tax old regime: ₹2,87,040
New Regime:
- Standard deduction: ₹75,000
- Taxable income: ₹21,25,000
- Tax: Nil + ₹20,000 + ₹40,000 + ₹60,000 + ₹80,000 + ₹31,250 = ₹2,31,250
- Add 4% cess: ₹9,250
- Total tax new regime: ₹2,40,500
Verdict for this person: Old regime saves ₹46,540 per year.
For him, the combination of HRA, home loan interest, and NPS makes the old regime clearly better despite the new regime looking attractive on paper.
Example 4 — Freelance Designer, ₹9 Lakh Irregular Income
This case is different because freelancers file under business income, not salary income. The standard deduction does not apply the same way. For freelancers and self-employed individuals the calculation involves presumptive taxation under Section 44ADA which I will cover in a separate article — the analysis here is specifically for salaried employees.
The Simple Rule of Thumb
Based on the calculations above and dozens of similar cases, here is the pattern:
New regime is almost always better if:
- Your income is below ₹12.75 lakh — you pay zero tax
- Your total deductions under old regime are less than ₹3.75 lakh
- You do not pay significant rent (no HRA benefit)
- You do not have a home loan
Old regime is better if:
- Your income is above ₹15 lakh AND you have high deductions
- You pay significant rent in a metro city (high HRA benefit)
- You have a home loan with large interest component
- You actively invest ₹1.5 lakh in 80C AND contribute to NPS AND have health insurance
The crossover point for most salaried Indians is approximately ₹3.75–4 lakh in total deductions. If your deductions exceed this number under the old regime, run the calculation. If they fall below it, new regime is almost certainly better.
How to Actually Switch Regimes
For salaried employees: You can switch between old and new regime every financial year. Inform your employer at the beginning of the year by submitting Form 12BB with your investment declarations. Your employer will deduct TDS accordingly.
If you miss informing your employer, you can still choose the correct regime when filing your ITR before July 31st.
Important: If you have business income in addition to salary income, switching is subject to different rules. Consult a CA in that case.
Where to file: incometaxindia.gov.in — official Income Tax portal for filing ITR and checking your Form 26AS.
My Personal Recommendation
I have run this calculation for multiple people and the result is almost always the same: most Indians earning below ₹15 lakh are better off in the new regime in 2025–26 unless they are paying significant rent in a metro or have a large home loan.
The government has deliberately made the new regime simpler and more beneficial for the majority. The old regime now mainly benefits people who have genuinely large deductions — not people who invest ₹50,000 in 80C and call it a day.
Run your own numbers using the examples above as a template. The 30 minutes you spend on this calculation could save you ₹15,000–₹50,000 per year.
The Mistake Your HR Department Makes
Most companies default new employees to the new regime from April 2025 onwards (as per CBDT circular). But they often don’t:
- Tell you that you can switch
- Remind you to submit Form 12BB if you want old regime
- Account for HRA properly if you submit rent receipts late
What to do right now:
- Ask your HR/payroll team: “Which regime am I currently filed under?”
- If you have a home loan or pay metro rent, request a switch to old regime immediately
- Submit rent receipts and home loan certificate BEFORE January (most employers stop accepting after that)
- If your employer already deducted wrong TDS — you can correct it at ITR filing time, but you’ll wait for refund
The window to inform your employer for FY 2026–27 is April–May. If you’re reading this now, act this week.
Quick Summary
- Income up to ₹12.75 lakh → New regime → Zero tax
- Income ₹12.75L–₹15L with low deductions → New regime usually better
- Income above ₹15L with HRA + home loan + NPS → Old regime may win
- Switch is allowed every year for salaried employees
- Inform employer via Form 12BB at start of financial year
- File ITR at incometaxindia.gov.in before July 31st
This article was written by Mahesh Kumar, a Mumbai-based tech and finance blogger. Tax calculations are based on Finance Act 2025 provisions. For personalised tax planning, consult a SEBI-registered investment advisor or chartered accountant. You can verify current tax slabs at incometaxindia.gov.in.
⚠️ Disclaimer: This article is for general educational purposes only and does not constitute financial advice. For decisions specific to your situation, consult a SEBI-registered financial advisor or chartered accountant.
