New Income Tax Act: Key Changes from the Old Act

The Income-tax Act, 2025 is now law. After receiving Presidential assent on 21 August 2025, this landmark legislation replaces the six-decade-old Income Tax Act of 1961 and comes into effect from 1 April 2026. It is the most significant overhaul of India's direct tax system in over 60 years.

The new Act was passed by the Lok Sabha on 11 August 2025, after an earlier version introduced in February 2025 was withdrawn for revisions based on committee recommendations. With 536 sections across 23 chapters and 16 schedules — down from 819 sections, 47 chapters, nearly 1,200 provisos, and 900 explanations — the new law is dramatically simpler.

Let's break down what the new Income Tax Act means for you.

Why the Change? The Core Objectives

The government's primary goal with the new Act is to overhaul a system that had become notoriously complex over the decades. The key objectives are:

• Simplicity and Clarity: The Act cuts the total word count from approximately 5.12 lakh words to 2.60 lakh words — a reduction of nearly 50%. The language is clearer and more direct, making it easier for the average taxpayer to understand their obligations.
• Modernisation: Recognising the digital shift in the economy, the Act introduces provisions for the taxation of digital assets and leverages technology through faceless assessment procedures to reduce human interface and curb corruption.
• Reduced Litigation: By removing ambiguities — including nearly 1,200 provisos and 900 explanations that riddled the old Act — the new law aims to create a more stable and predictable tax framework, reducing disputes and saving taxpayers time and money.

Key Changes in the New Income Tax Act

The Income-tax Act, 2025 introduces several significant changes that will affect individuals and businesses from 1 April 2026. Here are the most important ones:

1. A Unified "Tax Year"

Say goodbye to the confusing dual concepts of "Previous Year" and "Assessment Year." The new Act introduces a single, unified "Tax Year", running from April 1 to March 31, during which income is earned and taxed. This simplifies return filing and eliminates a source of perennial confusion for taxpayers.

2. Simplified TDS and TCS Rules

The 69 separate TDS/TCS sections in the old Act have been consolidated into just three sections in the new law:

• Section 392: TDS on salary
• Section 393: TDS on all other payments
• Section 394: Tax Collected at Source (TCS)

Instead of self-contained sections for each type of payment, the new Act uses clear tables listing payment types, payer categories, rates, and thresholds — making it far easier to look up the correct rate.

For students, there is "nil" TCS on foreign remittances for education made under the Liberalised Remittance Scheme (LRS) when financed by a loan from a financial institution.

3. Extended Revised Return Deadline

The time limit for filing a revised return has been extended from 9 months to 12 months from the end of the tax year. The revised return due date moves to 31 March (from the earlier 31 December), though a fee applies if filed after the initial 9-month window.

4. Simplified Capital Gains

While the structure and essence of capital gains taxation remain the same, the language has been significantly simplified. Provisions are now covered under Sections 67, 196, 197, and 198. Additionally, salaried individuals and small business owners with long-term capital gains up to Rs 1,25,000 can now use simpler forms (ITR-1 or ITR-4).

5. Taxing Virtual Digital Assets (VDAs)

The Act broadens the definition of Virtual Digital Assets to explicitly include cryptocurrencies, NFTs, and other digital assets. Cryptocurrency is now formally classified as a taxable capital asset, removing earlier ambiguity about its tax treatment.

6. Pension Parity

The tax deduction for commuted pensions (receiving a lump-sum amount) has been extended to non-employees, bringing them on par with salaried employees.

7. Flexibility for Late Refunds

The Act allows individuals to claim tax refunds even if they miss the filing deadline, provided there is a valid reason such as a medical emergency or technical glitches.

8. Digital-First Administration

The new Act embeds digital-first, faceless assessment procedures as the default, reducing human interface in tax proceedings and curbing scope for corruption.

The Tax Slabs Under the New Regime

For those opting into the new tax regime (which is now the default from April 2026), the income tax slabs are:

Income Range	Tax Rate
Up to Rs 4,00,000	Nil
Rs 4,00,001 to Rs 8,00,000	5%
Rs 8,00,001 to Rs 12,00,000	10%
Rs 12,00,001 to Rs 16,00,000	15%
Rs 16,00,001 to Rs 20,00,000	20%
Rs 20,00,001 to Rs 24,00,000	25%
Above Rs 24,00,000	30%

The Rs 12 lakh annual basic exemption limit has been retained, with a rebate ensuring that individuals earning up to this amount pay zero tax under the new regime.

Old Act vs New Act: At a Glance

Feature	Income Tax Act, 1961	Income-tax Act, 2025
Total Sections	~819	536
Chapters	47	23
Word Count	~5.12 lakh	~2.60 lakh
Provisos	~1,200	Removed/absorbed
Explanations	~900	Removed/simplified
Year Concept	Previous Year + Assessment Year	Unified Tax Year
TDS/TCS Sections	69 separate sections	3 consolidated sections
Revised Return Deadline	9 months (31 Dec)	12 months (31 Mar)
Assessment	Manual + Faceless	Faceless by default

What About Pending Cases?

All assessments, appeals, penalties, and proceedings pending as of 1 April 2026 will continue to be governed by the Income Tax Act, 1961. The new Act provides continuity through Section 536, ensuring that existing matters are not disrupted by the transition.

What You Should Do Now

The new Act comes into effect on 1 April 2026. Here's how to prepare:

• Familiarise yourself with the new sections: If you're a business owner or professional, understand how TDS/TCS provisions have been reorganised.
• Review your tax planning: Use our Income Tax Calculator to estimate your liability under the new slabs.
• Check your SIP and investment plans: Use the SIP Calculator or FD Calculator to optimise your tax-saving investments before 31 March.
• Consult a CA: For complex situations — business income, capital gains, foreign income — professional advice is recommended during this transition.

Disclaimer: This article is for informational purposes only and does not constitute tax advice. Tax laws are subject to change. Please consult a qualified Chartered Accountant or tax professional for advice specific to your situation.