Every salaried employee in India must make one crucial decision at the start of each financial year: Old Tax Regime or New Tax Regime? Get it wrong and you could be paying thousands of rupees more in tax than necessary.

In this comprehensive guide, we compare both regimes using the latest FY 2025-26 tax slabs, work through real salary examples, and show you exactly which regime saves more money for different income levels.

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The Two Regimes — A Quick Overview

🟠 Old Tax Regime

  • ✅ Higher tax slabs
  • ✅ 70+ deductions & exemptions allowed
  • ✅ HRA, LTA, 80C, 80D, NPS, etc.
  • ✅ Best for those with high investments
  • ⚠️ More paperwork and proof needed
  • ⚠️ Complex to calculate

🟢 New Tax Regime (Default)

  • ✅ Lower tax slabs
  • ✅ No tax up to ₹12 lakh income
  • ✅ Simple — no investment proofs
  • ✅ Standard deduction of ₹75,000
  • ⚠️ Most deductions NOT allowed
  • ⚠️ May not suit high-investment individuals

New Regime Tax Slabs — FY 2025-26

The new tax regime (now the default regime) has these slabs after Budget 2025:

Income SlabTax Rate
Up to ₹4,00,000NIL
₹4,00,001 – ₹8,00,0005%
₹8,00,001 – ₹12,00,00010%
₹12,00,001 – ₹16,00,00015%
₹16,00,001 – ₹20,00,00020%
₹20,00,001 – ₹24,00,00025%
Above ₹24,00,00030%

Key benefit: Due to the Section 87A rebate, taxpayers with taxable income up to ₹12 lakh pay zero tax in the new regime. Plus, with the ₹75,000 standard deduction, a salaried employee earning up to ₹12.75 lakh gross pays no income tax!

Old Regime Tax Slabs — FY 2025-26

Income SlabTax Rate
Up to ₹2,50,000NIL
₹2,50,001 – ₹5,00,0005%
₹5,00,001 – ₹10,00,00020%
Above ₹10,00,00030%

The old regime has higher rates but allows major deductions that can significantly reduce your taxable income. The key deductions are:

Side-by-Side Tax Comparison — Real Salary Examples

Let's calculate actual tax for different salary levels to see which regime saves more:

Example 1: Annual Salary ₹8 Lakhs

ParticularsOld RegimeNew Regime
Gross Salary₹8,00,000₹8,00,000
Standard Deduction₹50,000₹75,000
Section 80C₹1,50,000Not allowed
80D (Health Insurance)₹25,000Not allowed
Taxable Income₹5,75,000₹7,25,000
Tax (before cess)₹32,500₹27,500
Total Tax (with 4% cess)₹33,800₹28,600
💰 SavingsNew Regime saves ₹5,200

Example 2: Annual Salary ₹12 Lakhs

ParticularsOld RegimeNew Regime
Gross Salary₹12,00,000₹12,00,000
Standard Deduction₹50,000₹75,000
Section 80C₹1,50,000Not allowed
NPS 80CCD(1B)₹50,000Not allowed
HRA Exemption₹1,20,000Not allowed
80D₹25,000Not allowed
Taxable Income₹8,05,000₹11,25,000
Tax₹72,500₹0 (rebate u/s 87A)
Total Tax (with cess)₹75,400₹0
💰 SavingsNew Regime saves ₹75,400!

Example 3: Annual Salary ₹20 Lakhs

ParticularsOld RegimeNew Regime
Gross Salary₹20,00,000₹20,00,000
Standard Deduction₹50,000₹75,000
Section 80C₹1,50,000Not allowed
NPS 80CCD(1B)₹50,000Not allowed
HRA Exemption₹2,00,000Not allowed
80D₹25,000Not allowed
Home Loan Interest (24b)₹2,00,000Not allowed
Taxable Income₹13,25,000₹19,25,000
Tax₹1,97,500₹2,31,250
Total Tax (with cess)₹2,05,400₹2,40,500
💰 SavingsOld Regime saves ₹35,100

Which Regime Wins at Different Income Levels?

Annual SalaryWithout Major DeductionsWith 80C + HRA + NPS
₹6 LakhNew Regime ✅New Regime ✅
₹8 LakhNew Regime ✅New Regime ✅
₹10 LakhNew Regime ✅Similar / Old slightly better
₹12 LakhNew Regime ✅ (Zero tax!)New Regime ✅
₹15 LakhNew Regime ✅Old Regime ✅
₹20 LakhNew Regime ✅Old Regime ✅
₹25 Lakh+New Regime ✅Old Regime ✅ (if maximising deductions)
💡 Rule of Thumb
If your total deductions (80C + HRA + 80D + NPS + home loan interest) exceed ₹4-5 lakhs, the old regime likely saves more tax. Below that threshold, the new regime is almost always better in FY 2025-26.

Deductions NOT Allowed in New Regime

Before switching to the new regime, check if you claim any of these — they are completely disallowed:

What IS Allowed in New Regime

Can You Switch Between Regimes Every Year?

Salaried employees: Yes. If you have no business income, you can switch between old and new regime every financial year when filing your ITR. Inform your employer of your choice at the beginning of the year for TDS purposes.

Business owners: No. If you have business income, you can switch to new regime only once and cannot come back to the old regime if you switch back (except in one specific circumstance).

Frequently Asked Questions

Is the new regime mandatory from FY 2025-26?
No — the new regime is now the DEFAULT regime (meaning your employer deducts TDS as per new regime if you don't inform them otherwise), but you can still choose the old regime. Simply inform your employer in writing at the start of the financial year.
I missed informing my employer — can I still choose old regime?
Yes. Even if TDS was deducted under the new regime, you can choose the old regime when filing your ITR and claim any refund. The regime choice is ultimately made at the time of ITR filing, not at the employer level.
If my income is ₹12.75 lakh, do I really pay zero tax?
Yes! Under the new regime for FY 2025-26: Gross salary ₹12,75,000 minus standard deduction ₹75,000 = taxable income ₹12,00,000. The Section 87A rebate covers the full tax on income up to ₹12 lakh, resulting in zero tax liability. This is a major relief for the middle class.
Should I stop investing in PPF and 80C if I choose new regime?
No! PPF, ELSS, and other 80C investments are still excellent for long-term wealth creation and PPF gives tax-free returns. Just because you can't deduct them from tax doesn't mean you should stop investing. The tax deduction is a bonus; the investment benefit is the real goal.
What about senior citizens — which regime is better?
Senior citizens (60+) get an additional basic exemption of ₹3 lakh in the old regime (₹2.5L for others) and super senior citizens (80+) get ₹5 lakh. However, the new regime's zero-tax up to ₹12 lakh often still wins for those with lower deductions. Use our tax calculator to compare for your specific situation.

📋 Key Takeaways

  • New regime is now the default — but old regime is still available
  • Zero tax for income up to ₹12 lakh in new regime (with rebate)
  • Salaried earning up to ₹12.75 lakh: zero tax under new regime
  • Old regime wins if total deductions exceed ₹4-5 lakhs
  • Both regimes have ₹75,000 standard deduction for salaried (new) / ₹50,000 (old)
  • Salaried employees can switch regimes every year at ITR filing

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