Key Takeaway: The Income Tax Act 2025 received Presidential assent and replaces the Income Tax Act 1961 from 1 April 2026. The new law simplifies language, rationalises deductions, and makes the new tax regime the default for all taxpayers.
What is the New Income Tax Act 2025?
The Income Tax Act 2025 is a comprehensive overhaul of India's direct tax law — a project that was in the making for over a decade. The 60-year-old Income Tax Act 1961 was widely criticised for being complex, having overlapping provisions, and being difficult for ordinary taxpayers to understand.
The new Act consolidates, simplifies and modernises India's income tax law. Written in plain language, it organises provisions logically, eliminates redundant sections, and introduces clearer guidelines — while maintaining the same fundamental tax principles.
When Does It Come into Effect?
The New Income Tax Act 2025 is applicable from 1 April 2026 — meaning Assessment Year 2026-27 (for income earned in FY 2025-26) will be the first year governed by the new Act.
⚠️ For FY 2025-26 (AY 2026-27) filings (ITR due July 2026), the new Act applies. If you're filing for FY 2024-25 (AY 2025-26) right now, the old IT Act 1961 still applies.
New Tax Slabs for FY 2025-26 (New Regime — Default)
Under the new Act, the new tax regime is the default regime. Taxpayers must actively opt for the old regime if they wish to claim deductions like HRA, 80C etc.
| Income Slab | Tax Rate | Tax Amount on Slab |
|---|---|---|
| Up to ₹3,00,000 | Nil | ₹0 |
| ₹3,00,001 – ₹7,00,000 | 5% | ₹20,000 |
| ₹7,00,001 – ₹10,00,000 | 10% | ₹30,000 |
| ₹10,00,001 – ₹12,00,000 | 15% | ₹30,000 |
| ₹12,00,001 – ₹15,00,000 | 20% | ₹60,000 |
| Above ₹15,00,000 | 30% | 30% on amount above ₹15L |
Important notes:
- Standard deduction of ₹75,000 for salaried individuals under the new regime
- Rebate u/s 87A: No income tax if total income ≤ ₹12 lakh (after standard deduction of ₹75,000)
- 4% Health and Education Cess applies on all tax amounts
- Surcharge applies for income above ₹50 lakh
What's New — Key Changes from IT Act 1961
1. Simplified Language
The most visible change is the language. The old Act used archaic legal language with cross-references that made it nearly impossible for a layperson to read. The new Act is written in simple English with clear definitions, logical chapter sequencing and plain explanations.
2. New Regime is Now Default
Under the old law, the old (higher exemption) regime was the default and you had to opt into the new regime. Now it's reversed — the new regime is default for all taxpayers including businesses. If you want deductions, you must actively opt for the old regime while filing your ITR.
3. Increased Standard Deduction
The standard deduction for salaried individuals under the new regime has been increased from ₹50,000 to ₹75,000. For pensioners, family pension deduction has also been raised.
4. Higher Rebate — No Tax Up to ₹12 Lakh
The rebate under Section 87A has been significantly enhanced. Under the new regime, if your total income is up to ₹12 lakh (after standard deduction), you pay zero income tax. This is a major relief for the middle class.
5. Rationalised Deductions
Several overlapping and rarely-used deductions from the old Act have been rationalised. The new Act consolidates them logically. Key deductions retained in the old regime include 80C (₹1.5L), 80D (health insurance), 80E (education loan), HRA, and home loan interest under 24(b).
6. Digital-First Compliance
The new Act formally recognises digital records, e-assessments and faceless proceedings as the primary mode of tax compliance and dispute resolution — a formal codification of what was already happening in practice.
7. Clearer TDS/TCS Provisions
TDS and TCS provisions have been reorganised and made more consistent. The threshold limits, rates, and filing obligations are presented in clearer tables, reducing confusion for deductors.
What Remains the Same
- ITR filing structure and deadlines are largely unchanged
- GST remains a separate law — unaffected by the new IT Act
- Section numbers change but the underlying tax principles remain
- Old regime remains available for those who prefer it (must opt-in)
- Advance tax, TDS/TCS obligations continue as before
New Regime vs Old Regime — Which to Choose?
The new regime works out better for most taxpayers with income below ₹12 lakh (zero tax) or those with limited deductions. The old regime is better if you have significant deductions — especially HRA + 80C investments + home loan interest totalling more than ₹3–4 lakh.
💡 Use our free Income Tax Calculator to compare both regimes for your exact income and deductions in seconds.
Action Items for Taxpayers — Before 1 April 2026
- Calculate both regimes for your income — use our calculator
- If keeping old regime: Ensure your employer has received Form 12BB with all declarations
- Review your investments: 80C, 80D, NPS — check if they're still worth it under old regime
- Update Form 16: Ask your employer/HR to issue Form 16 as per new Act format
- Business owners: Note that advance tax computation changes from AY 2026-27
Still confused about the new tax act?
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