Key Takeaway: The new tax regime (default from FY 2024–25) has lower headline rates but no deductions. The old regime has higher rates but allows 80C, 80D, HRA, and home loan interest deductions. Choose based on your total deductions — if they exceed ₹3.75 lakh, the old regime usually wins.
The Decision Every Indian Taxpayer Faces
Since FY 2024–25, the new tax regime is the default for Indian taxpayers. If you want to use the old regime, you must explicitly opt for it when filing your return. This shift has forced millions of salaried Indians to make a decision they previously avoided: which regime actually saves me more tax? The answer isn't obvious. The new regime offers lower rates but eliminates most deductions. The old regime has higher rates but allows you to reduce your taxable income through investments, insurance premiums, home loan interest, and more. For some taxpayers, the new regime is a clear win. For others, it's a significant loss. This guide breaks down both regimes, runs the numbers for different income levels, and gives you a clear decision framework.
The New Tax Regime (FY 2025–26 onwards)
The new regime's slab rates: • ₹0 – ₹3,00,000: 0% • ₹3,00,001 – ₹7,00,000: 5% • ₹7,00,001 – ₹10,00,000: 10% • ₹10,00,001 – ₹12,00,000: 15% • ₹12,00,001 – ₹15,00,000: 20% • Above ₹15,00,000: 30% Standard deduction: ₹75,000 (salaried) Rebate under Section 87A: If taxable income is up to ₹7,00,000, tax is effectively zero. What you can't claim in the new regime: • Section 80C (PPF, ELSS, LIC, home loan principal) • Section 80D (health insurance) • HRA exemption • Section 24(b) home loan interest • Section 80TTA (savings interest) • Most other deductions What you can still claim: • Standard deduction of ₹75,000 (salaried) • NPS contribution by employer up to 14% of salary • Section 80CCD(2) — this remains • Deduction for employer's contribution to NPS • Family pension deduction
The Old Tax Regime
The old regime's slab rates: • ₹0 – ₹2,50,000: 0% • ₹2,50,001 – ₹5,00,000: 5% • ₹5,00,001 – ₹10,00,000: 20% • Above ₹10,00,000: 30% Standard deduction: ₹50,000 (salaried) Rebate under Section 87A: If taxable income is up to ₹5,00,000, tax is effectively zero. What you can claim in the old regime: • Section 80C: Up to ₹1,50,000 • Section 80CCD(1B): Additional ₹50,000 for NPS • Section 80D: Health insurance ₹25,000–₹1,00,000 • HRA exemption (if applicable) • Section 24(b): Home loan interest up to ₹2,00,000 • Section 80E: Education loan interest (unlimited) • Section 80TTA: Savings interest up to ₹10,000 • Section 80G: Donations • Section 80U: Disability For taxpayers with significant deductions, the old regime's higher headline rates are more than offset by the deductions.
A Worked Comparison at Different Income Levels
Let's calculate tax under both regimes for different income levels, assuming zero deductions in the new regime and maximum deductions (₹1.5L under 80C, ₹25K under 80D, ₹2L home loan interest) in the old regime. Case 1: ₹8,00,000 salary New regime: Taxable income: ₹8,00,000 − ₹75,000 = ₹7,25,000 Tax: ₹22,500 (5% on ₹4L) + ₹2,500 (10% on ₹25K) = ₹25,000 Plus cess (4%): ₹26,000 Effective tax: ₹26,000 Old regime: Taxable income: ₹8,00,000 − ₹50,000 (std) − ₹1,50,000 (80C) − ₹25,000 (80D) = ₹5,75,000 Tax: ₹12,500 (5% on ₹2.5L) + ₹15,000 (20% on ₹75K) = ₹27,500 Plus cess: ₹28,600 Effective tax: ₹28,600 Winner: New regime (₹2,600 lower tax) Case 2: ₹12,00,000 salary New regime: Taxable income: ₹12,00,000 − ₹75,000 = ₹11,25,000 Tax: ₹20,000 (5% on ₹4L) + ₹30,000 (10% on ₹3L) + ₹18,750 (15% on ₹1.25L) = ₹68,750 Plus cess: ₹71,500 Old regime (with ₹1.5L 80C + ₹25K 80D + ₹2L home loan interest): Taxable income: ₹12,00,000 − ₹50,000 − ₹1,50,000 − ₹25,000 − ₹2,00,000 = ₹7,75,000 Tax: ₹12,500 + ₹55,000 (20% on ₹2.75L) = ₹67,500 Plus cess: ₹70,200 Winner: Old regime (₹1,300 lower tax) — barely Case 3: ₹20,00,000 salary New regime: Taxable income: ₹20,00,000 − ₹75,000 = ₹19,25,000 Tax: ₹20,000 + ₹30,000 + ₹30,000 + ₹1,27,500 (30% on ₹4.25L) = ₹2,07,500 Plus cess: ₹2,15,800 Old regime (with max deductions): Taxable income: ₹20,00,000 − ₹50,000 − ₹1,50,000 − ₹25,000 − ₹2,00,000 = ₹15,75,000 Tax: ₹12,500 + ₹1,00,000 + ₹1,72,500 (30% on ₹5.75L) = ₹2,85,000 Plus cess: ₹2,96,400 Winner: New regime (₹80,600 lower tax) Interesting — for high earners, the new regime wins even with max deductions, because the new regime's higher slabs are more favourable than the old regime's 30% rate.
The Decision Framework
Here's a simple rule of thumb based on your total deductions: Total deductions under old regime (including standard deduction): • Under ₹1,50,000: New regime usually wins • ₹1,50,000 – ₹3,00,000: Depends — run the numbers • ₹3,00,000 – ₹3,75,000: Old regime often wins for mid-income earners • Above ₹3,75,000 (rare unless HRA + home loan + max 80C): Old regime usually wins But income level matters too: • High earners (above ₹15L): New regime often wins because the top slab is higher in the old regime (30% from ₹10L vs 30% from ₹15L) • Mid earners (₹8L–₹15L): Depends on your deductions • Low earners (under ₹8L): New regime usually wins (higher rebate threshold and standard deduction) The math is genuinely close in many cases. Don't rely on rules of thumb — calculate both regimes with your actual numbers.
Who Should Choose the Old Regime
Consider the old regime if you: • Have a home loan with significant interest — the ₹2L deduction under Section 24(b) is worth up to ₹62,400 in tax savings at the 30% slab • Pay rent in a metro city — HRA exemption can be worth ₹1.5–₹3 lakh • Max out 80C (₹1.5L) and 80D (₹25K–₹1L) • Have children's education loan interest — Section 80E is unlimited • Have significant donations under Section 80G • Are a self-employed professional with many deductions For a salaried mid-to-senior professional with a home loan and rent, total deductions often exceed ₹4 lakh — making the old regime clearly better.
Who Should Choose the New Regime
Consider the new regime if you: • Don't have a home loan or significant deductions • Are an early-career professional with no major investments • Are a high earner above ₹15L — the top slab is favourable • Value simplicity — no need to track investments or deductions • Are a senior citizen with no deductions • Have income above ₹15L with limited deduction opportunities The new regime's simplicity is underrated. For many young professionals, tracking HRA proofs, investment receipts, and insurance documents is more hassle than the tax saved. If the difference is under ₹10,000, the new regime's simplicity is a valid choice.
Frequently Asked Questions
Can I switch regimes every year?
Salaried taxpayers: yes, every year at the time of filing. If you have business income, you can only switch once from new to old, and once back. Salaried employees have full flexibility to choose the better regime each year based on their situation.
Is the new regime the default?
Yes, from FY 2024–25. If you don't explicitly opt for the old regime when filing, you'll be taxed under the new regime. This is a change from prior years, when the old regime was the default. Opting for old regime requires filing Form 10-IEA.
Can I claim HRA in the new regime?
No. HRA exemption is only available in the old regime. If you're a salaried employee paying significant rent in a metro city, this alone can make the old regime more beneficial. Calculate carefully before choosing.
What is the standard deduction under each regime?
New regime: ₹75,000. Old regime: ₹50,000. The new regime's higher standard deduction is one of its advantages. This is automatically applied if you're salaried and don't need to submit proof.
Can I switch from new to old regime if I have business income?
You can switch once from new to old, then once back to new. Business owners have limited flexibility compared to salaried taxpayers. Once you switch back to new, you cannot opt for old again. Choose carefully if you have business income.
What is Form 10-IEA?
It's the form for opting out of the new regime. If you want to be taxed under the old regime, you must file Form 10-IEA before the due date of filing your return (usually 31 July). Once filed, this choice applies to that financial year only.
Does the new regime have any deductions?
Very few. You can claim the standard deduction (₹75,000 for salaried), employer contributions to NPS (Section 80CCD(2)), and a few others. Most major deductions (80C, 80D, HRA, home loan interest) are not available.
Which regime is better for a ₹10 lakh salary?
Depends on deductions. With no deductions, new regime wins. With ₹2L+ deductions (80C + 80D + home loan interest), old regime may win. For ₹10L salary, run the numbers — the difference is often under ₹10,000 either way, so simplicity may matter more than optimization.
Bottom Line
The new vs old regime decision comes down to one question: do your total deductions exceed the tax savings from the new regime's lower rates? For most salaried Indians without a home loan, the new regime wins on simplicity and marginally on tax. For those with a home loan, HRA, and maxed-out 80C, the old regime can save ₹15,000–₹40,000/year. The math is close in many cases — so calculate both with your actual numbers rather than relying on rules of thumb. Remember to file Form 10-IEA before the deadline if opting for the old regime, and reassess every year as your income and deductions change. This is one of the few tax decisions with real money on the line — take it seriously.