New vs Old Tax Regime: Break-Even Guide (FY 2026-27)

Rohan is a 31-year-old software engineer at a mid-size IT firm in Pune. His CTC is Rs.15 lakh. Every January, when his HR sends out the investment declaration form, he stares at it for twenty minutes and then just ticks whatever he ticked last year. This year, his colleague told him she saves more in tax than he does -- same salary, different regime choice. That got his attention.

If you have ever felt the same confusion, this article is your answer. We are going to walk through exactly how the two tax regimes work, where the break-even point sits for different salary levels, and how to figure out -- in under five minutes -- which one actually puts more money in your pocket. For a quick reference on slab rates and the 87A rebate, see the breakdown below.

The Core Difference in Plain Language

Think of the two regimes as two different restaurant menus.

The new regime is a fixed-price thali. You get one flat standard deduction of Rs.75,000, and your tax is calculated on whatever remains. The rates are lower, and the government has made it the default from FY 2023-24 onward. If you earn up to Rs.12.75 lakh (gross salary minus Rs.75,000 standard deduction = Rs.12 lakh taxable income), you pay zero tax thanks to the Section 87A rebate.

The old regime is an a la carte menu. You get a smaller standard deduction of Rs.50,000, but you can claim a long list of additional deductions -- HRA, 80C investments, home loan interest, health insurance under 80D, NPS contributions under 80CCD(1B), and more. If your deductions are large enough, the old regime can still hand you a lower final tax bill despite its higher slab rates.

The question is never "which regime is better?" The right question is: are my deductions large enough to make the old regime worth it?

Meet Rohan -- and His Break-Even Moment

Rohan's gross salary is Rs.15 lakh. His basic salary is Rs.9 lakh (a common structure in many IT firms). Here is what his financial life looks like:

• He pays Rs.18,000 rent per month in Pune.
• His HRA from his employer is Rs.3.6 lakh per year.
• He has a Rs.25,000 per year term insurance premium (80C).
• He contributes Rs.46,500 per year to PPF (80C).
• He has no home loan, and covers himself with a Rs.25,000 annual health insurance premium.

Let us see what his tax looks like under each regime.

Under the New Regime (FY 2026-27):

Gross salary: Rs.15,00,000 Standard deduction: -Rs.75,000 Taxable income: Rs.14,25,000

After 4% cess: Rs.97,500

Under the Old Regime:

His eligible deductions:

• Standard deduction: Rs.50,000 (the old regime standard deduction -- note this is Rs.50,000, not Rs.75,000)
• HRA exemption -- calculated as the lowest of three conditions:
  • Condition 1 -- actual HRA received: Rs.3,60,000
  • Condition 2 -- rent paid minus 10% of basic: Rs.2,16,000 - Rs.90,000 = Rs.1,26,000
  • Condition 3 -- 40% of basic (Pune is a non-metro city): Rs.3,60,000
  • HRA exemption = Rs.1,26,000 (Condition 2 is the lowest)
• 80C (PPF + insurance): Rs.71,500
• 80D (self health insurance): Rs.25,000

Total deductions: Rs.50,000 + Rs.1,26,000 + Rs.71,500 + Rs.25,000 = Rs.2,72,500

Taxable income: Rs.15,00,000 - Rs.2,72,500 = Rs.12,27,500

Old regime tax on Rs.12,27,500:

After 4% cess: Rs.1,87,980

Verdict for Rohan: New regime saves him Rs.90,480 per year.

His colleague who pays less tax? She has a home loan, contributes to NPS, and her total deductions cross the break-even threshold for their salary level -- which is where the old regime finally flips the math.

A Quick Note on HRA and Metro vs Non-Metro Cities

The HRA exemption formula has a city-dependent ceiling that many people get wrong. For the third condition -- 50% of basic salary -- it applies only to the four official metro cities under the Income Tax Act: Delhi, Mumbai, Kolkata, and Chennai. For all other cities, including Pune, Bengaluru, Hyderabad, and Ahmedabad, the ceiling is 40% of basic salary.

See the HRA calculator guide for the full formula walkthrough and a step-by-step calculation you can apply to your own situation.

The Break-Even Table: What Deductions You Need at Each Salary Level

This is the question most salaried employees actually need answered. Below is the minimum total deduction above the standard deduction where the old regime equals the new regime for FY 2026-27.

"Above standard deduction" means the total of HRA exemption + 80C + 80D + home loan interest (Section 24b) + 80CCD(1B) NPS -- not including the Rs.50,000 standard deduction that the old regime itself provides.

So at Rs.15 lakh salary, you need deductions exceeding Rs.5.44 lakh on top of the standard deduction to make the old regime win. That means stacking the maximum: Rs.1.5 lakh in 80C + Rs.50,000 NPS (80CCD(1B)) + Rs.2 lakh home loan interest + Rs.25,000 health insurance + a meaningful HRA exemption. It is achievable for the right financial profile -- but it requires real commitments, not just declarations.

The Deductions That Move the Needle Most

Not all deductions are created equal. Here is how to think about which ones to prioritise if you are trying to cross the break-even line:

Home loan interest (Section 24b) -- up to Rs.2 lakh This is the single biggest lever. If you have a housing loan, use the EMI calculator to understand your interest vs principal split each year -- the interest component is the one that qualifies for Section 24b deduction.

HRA exemption If you live in a rented home and receive HRA from your employer, the actual exemption depends on your city, your basic salary, and your actual rent. Always calculate the "least of three" properly -- the exemption is never just the HRA component on your salary slip.

NPS under 80CCD(1B) -- Rs.50,000 extra This is an exclusive deduction available only in the old regime. It sits entirely outside the Rs.1.5 lakh 80C bucket. If you are not contributing Rs.50,000 per year to NPS for this reason, you are leaving a deduction on the table.

Employer NPS contribution -- 80CCD(2) -- available in BOTH regimes Here is one that works regardless of which regime you pick. If your employer contributes to your NPS account, up to 14% of your basic salary is deductible even under the new regime. If your company offers this and you have not opted in, talk to your HR -- this is free money sitting unclaimed.

Rohan's Colleague -- Why Her Math Works Differently

Priya, Rohan's colleague, has the same Rs.15 lakh CTC and the same basic salary structure. But her financial situation is quite different:

• Home loan on a 2BHK in Pune: annual interest approx. Rs.1,95,000 (Section 24b)
• NPS contribution under 80CCD(1B): Rs.50,000 per year
• 80C investments (ELSS + PPF): Rs.1,50,000
• HRA exemption: Rs.1,30,000
• 80D (health insurance): Rs.25,000

Total deductions above standard deduction: Rs.1,95,000 + Rs.50,000 + Rs.1,50,000 + Rs.1,30,000 + Rs.25,000 = Rs.5,50,000

That clears the Rs.5.44 lakh break-even threshold -- but only just. Her old regime tax works out to approximately Rs.96,200, compared to Rs.97,500 under the new regime. So the old regime saves her around Rs.1,300 per year in this scenario.

The lesson here is not that the old regime is dramatically better for her -- it barely is. But as her home loan interest reduces over time and her income grows, the regime decision needs to be revisited every year. At Rs.15 lakh, the margin between the two regimes is thin unless your deductions are clearly and comfortably above the break-even point.

How to Do This Calculation for Your Own Salary

You do not need a CA for this. Here is the four-step approach:

1. List every deduction you can genuinely claim this year -- not aspirational ones. If you plan to invest Rs.1.5 lakh in 80C but have only done Rs.60,000 so far and it is September, count Rs.60,000.

2. Calculate your HRA exemption properly. Use the "least of three" formula -- do not just use the HRA figure on your salary slip. The binding constraint is almost always Condition 2 (rent paid minus 10% of basic).

3. Check the break-even table above for your salary level.

4. Run both scenarios through the iCalcDesk Income Tax Calculator with your exact numbers. The calculator shows you the rupee difference side by side in seconds.

If the old regime saves you under Rs.5,000, it is probably not worth the paperwork and financial commitments it demands. If it saves you Rs.15,000 or more, it is worth structuring your investments accordingly.

One Trap to Avoid: Phantom Deductions

The most common mistake people make is declaring deductions on their investment declaration that they never actually make. If you declare Rs.1.5 lakh in PPF contributions but only deposit Rs.70,000, your employer adjusts TDS in the last two months of the year -- and you end up with a nasty surprise in your February payslip.

Declare only what you have already done or will definitely do before March 31st. The regime decision should always be based on real deductions, not optimistic projections.

What Changes Under the New Income Tax Act, 2025?

The new Income Tax Act, 2025 came into effect from April 1, 2026, applying from Tax Year 2026-27 onwards. For salaried individuals, the structure of the two regimes remains largely unchanged. The primary change in terminology is that Assessment Year and Financial Year are now referred to as "Tax Year" in the new Act. The deductions, slab rates, and rebate thresholds described in this article remain valid under the new Act.

The ITR you filed in July 2026 for income earned in FY 2025-26 was governed by the Income Tax Act, 1961. From Tax Year 2026-27 onward, the Income Tax Act, 2025 applies -- but the regime logic is the same.

Frequently Asked Questions (FAQ)

What is the break-even deduction point between the new and old tax regime for FY 2026-27?

The break-even deduction threshold is the minimum total deduction required above the standard deduction for the old tax regime to yield lower tax liability than the new regime. For FY 2026-27, approximate break-even thresholds are:

• ₹8 lakh CTC: ~₹2.31 lakh in deductions
• ₹10 lakh CTC: ~₹3.50 lakh in deductions
• ₹12 lakh CTC: ~₹4.50 lakh in deductions
• ₹15 lakh CTC: ~₹5.44 lakh in deductions
• ₹20 lakh CTC: ~₹7.08 lakh in deductions

At what salary level is income tax zero under the new tax regime in FY 2026-27?

Under the new tax regime, salaried employees earning up to ₹12.75 lakh pay zero income tax. The ₹75,000 standard deduction brings taxable income to ₹12 lakh, which is completely covered by the Section 87A rebate (up to ₹60,000).

Can I claim HRA and home loan interest deductions in the new tax regime?

No. Deductions for House Rent Allowance (HRA) under Section 10(13A), self-occupied home loan interest under Section 24(b), and Section 80C investments are exclusively available under the old tax regime.

Is employer NPS contribution deductible under the new tax regime?

Yes. Employer NPS contributions under Section 80CCD(2) (up to 14% of Basic + DA for all employees) are permitted as a deduction in both the new and old tax regimes.

How does city classification affect HRA exemption in the old regime?

Under the Income Tax Act, only four cities — Delhi, Mumbai, Kolkata, and Chennai — qualify for the 50% of basic salary metro ceiling. All other cities, including Pune, Bengaluru, and Hyderabad, are subject to the 40% non-metro ceiling.

Do the rules change under the new Income Tax Act, 2025?

Effective April 1, 2026, the Income Tax Act, 2025 comes into effect, renaming Financial Year and Assessment Year to 'Tax Year'. The overall tax slabs, ₹75,000 standard deduction, and dual-regime mechanism remain consistent for salaried employees.

The Bottom Line

The new tax regime is genuinely better for a large proportion of salaried Indians -- particularly those without a home loan, those earning under Rs.12.75 lakh, and those with limited investment commitments. The government designed it to be simpler, and for many people it is also cheaper.

But if you have a housing loan, pay rent in one of the four metro cities, have maximised your NPS, and diligently make 80C investments -- the old regime can still reward that discipline. The key word is "can" -- you need to do the actual numbers for your specific salary and deduction profile. The break-even table is your starting point. Your actual deductions are what decide it.

Rohan now knows he is firmly in new regime territory. He updated his declaration, stopped pretending to make investments he never makes, and will pay Rs.97,500 in tax instead of Rs.1,87,980. His only regret? Not doing this calculation three years ago.

💡 Quick Calculator Tip: Use the iCalcDesk Income Tax Calculator to enter your exact CTC, HRA, deductions and instantly see your tax under both regimes side by side. It takes under two minutes.

Disclaimer: This article is intended for general informational and educational purposes only. The examples, tax calculations, and figures used are illustrative and based on assumptions about salary structure, deductions, and applicable tax rules for Tax Year 2026-27. Individual tax liability depends on your specific salary components, eligible deductions, employer structure, and other personal circumstances. Tax laws are subject to change. iCalcDesk is not a registered tax advisor, chartered accountant, or financial planner. Please consult a qualified CA or tax professional before making any tax-related decisions.