New Income Tax Act 2026 — The Income Tax Bill 2025 Explained

New Income Tax Act 2026 — What It Means for You

India's Income Tax Act, 1961 has served as the foundational law governing income taxation for over six decades. In that time, the Act has been amended more than 60 times through successive Finance Acts, each adding new sections, provisos, explanations, and exceptions on top of the existing structure. The result: a law that runs to hundreds of sections with thousands of sub-clauses, provisos, and cross-references, uses archaic language like "Previous Year" and "Assessment Year," and has become so complex that even experienced tax professionals regularly debate the interpretation of its provisions.

On 13 February 2025, Finance Minister Nirmala Sitharaman introduced the Income Tax Bill, 2025 in the Lok Sabha — a comprehensive rewrite of India's income tax law, intended to replace the 1961 Act with a modern, plain-language, logically structured statute that ordinary taxpayers can understand without requiring specialist interpretation. The Income Tax Bill, 2025 does not change India's income tax rates. The tax slabs, the five heads of income, and principal deductions are all retained. What changes is the form and language of the law. N D Savla & Associates, Chartered Accountants based in Mumbai, is tracking the Bill's progress and is available to advise clients on how the transition will affect their income tax return filings, TDS obligations, and tax planning strategies. For the most current status of the Bill, visit incometax.gov.in.

Why India Needed a New Income Tax Law

The Income Tax Act, 1961 came into force on 1 April 1962. Over sixty years, it accumulated layer upon layer of amendments — not a coherent piece of legislation, but a palimpsest where new writing was inscribed over old without fully erasing it. The core problems:

• Archaic language: Words like "notwithstanding," "in lieu thereof," "without prejudice to," and "in the alternative" — technically precise but impenetrable to the ordinary taxpayer
• Dual year concept: The distinction between "Previous Year" (income is earned) and "Assessment Year" (income is taxed) confuses even sophisticated taxpayers — income earned in PY 2024-25 is filed for AY 2025-26
• Proviso overload: Some sections have 10 or more provisos, each carving out an exception to the preceding proviso — tracking their interaction is extremely difficult even for tax professionals
• Cross-reference complexity: Section X refers to Section Y, which refers to Section Z, which refers back to Section X with a modification — following a single point of law can require reviewing a dozen different sections
• Obsolete provisions: Decades of amendments have left many provisions effectively dead on the statute book, adding unnecessary legal text
• 60+ years of Finance Act amendments: The cumulative weight of amendments has made the Act far larger and more complex than it was designed to be

The Income Tax Bill, 2025 — Key Features

Plain Language and Simplified Drafting

The most immediately visible change is the language. Every effort has been made to write the Bill in contemporary, accessible English — short sentences, active voice where possible, everyday words replacing archaic legal terminology. The goal is for an educated taxpayer to read the relevant provision and understand their obligation without necessarily requiring a CA or lawyer to interpret it. This does not mean the Bill is simple — income tax is inherently complex — but the complexity is substantive (reflecting genuine economic complexity) rather than linguistic.

Schedules Replace Proviso Chains

One of the most significant structural innovations is the use of Schedules to present information that was previously embedded in section text, provisos, and explanations. What was previously a dense section with ten provisos becomes a clear statement of the rule in one or two sentences, with a Schedule (a table) listing the specific amounts, conditions, and exceptions. This makes the law far more readable.

New Chapter and Clause Structure

The new Bill organises income tax law into a rational chapter structure, with each chapter covering a coherent topic. The clause numbers are new — what was Section 80C of the 1961 Act will have a new clause number in the new Act. This means all existing references to specific section numbers in accounting software, tax forms, ITR forms, and professional literature will need to be updated. A comprehensive concordance (mapping of old section numbers to new clause numbers) will be required for the transition period.

Formulaic Provisions

Many computational provisions in the 1961 Act express calculations through dense prose. The new Bill introduces formulaic presentation: the computation is expressed as a formula (e.g., "Tax = [Rate] × [Income - Deductions]"), making the calculation transparent and verifiable.

The "Tax Year" Revolution — No More Assessment Year vs Previous Year

The single most consequential conceptual change in the new Bill is the elimination of the Previous Year / Assessment Year dichotomy and its replacement with the single concept of "Tax Year."

The Old System

• Previous Year (PY): The financial year (1 April to 31 March) in which income is EARNED. For example, PY 2024-25 = 1 April 2024 to 31 March 2025
• Assessment Year (AY): The year FOLLOWING the Previous Year, in which the income earned in the PY is ASSESSED (taxed) and the return is FILED. AY 2025-26 = the year in which income of PY 2024-25 is filed
• Result: A taxpayer filing their return in July 2025 is filing for income earned in PY 2024-25 for AY 2025-26 — the "one year behind" concept confuses even sophisticated taxpayers

The New System — Tax Year

Under the new Income Tax Bill, 2025: Tax Year = the period (1 April to 31 March) in which income is earned. Tax Year 2025-26 = 1 April 2025 to 31 March 2026. Income earned in Tax Year 2025-26 is computed and taxed FOR Tax Year 2025-26. The filing of the return and the assessment are done "for" the Tax Year in which the income was earned. The "assessment year" distinction disappears entirely.

What Changes vs What Stays the Same

Key Provision Areas — What the New Bill Says

Salary Income and TDS Provisions

All provisions relating to salary income — the definition of "salary," valuation of perquisites (company cars, accommodation, stock options), computation of allowances (HRA, LTA), and the standard deduction — are retained in the new Bill with simplified language. Employers' TDS obligations and the requirement to file Form 24Q quarterly and issue Form 16 annually continue unchanged in substance. The comprehensive TDS framework (covering TDS on salary, interest, professional fees, contractor payments, rent, property purchases, and payments to non-residents) is retained with new section numbers but the same operational workflow.

Capital Gains

Capital gains provisions — the distinction between short-term and long-term capital gains, holding period thresholds for different asset classes, the rates applicable (STCG at slab rates or special rates; LTCG at 12.5% without indexation for listed securities and equity funds after Finance Act 2024; LTCG at 20% for other long-term assets) — are all retained in the new Bill. The Finance Act 2024's significant changes to capital gains (revised LTCG and STCG rates, removal of indexation for most assets, revised holding periods for some assets) are incorporated into the new Bill's structure.

Deductions Under Chapter VI-A

The deductions under Chapter VI-A of the 1961 Act — 80C (maximum Rs. 1.5 lakh per year for EPF, PPF, LIC, ELSS, home loan principal, SCSS, NSC, etc.); 80CCD(1B) (additional Rs. 50,000 for NPS contributions); 80D (health insurance premiums); 80E (education loan interest); 80G (donations); 80TTA (savings account interest) — are retained in the new Bill. Under the old tax regime, these deductions continue to be available. Under the new (default) tax regime, most deductions are not available (as per Finance Act 2023 changes), and this position is retained in the new Bill.

New Income Tax Return Forms for 2026

When the new Income Tax Act comes into force, the ITR forms will need to be updated to reflect: new section/clause number references throughout; updated terminology ("Tax Year" instead of "Assessment Year"); potentially simplified form structure; and updated income head descriptions consistent with the new Act's chapter structure. The CBDT will notify new ITR forms for the Tax Year in which the new Act comes into force, and will make these available on the income tax portal at incometax.gov.in.

Timeline — When Does the New Law Take Effect?

• Income Tax Bill, 2025 introduced in the Lok Sabha — 13 February 2025
• Bill referred to a Select/Joint Committee of Parliament for detailed review
• Parliamentary Committee report ? Parliamentary passage (both Houses) ? Presidential assent
• Government will notify the "appointed date" from which the new Act takes effect
• Likely effective date: 1 April 2026 (Tax Year 2026-27) — if the legislative process is completed on schedule

Until the appointed date, all income tax compliance continues under the Income Tax Act, 1961. For the current status of the Bill and any official announcements, visit incometax.gov.in.

How Taxpayers and Businesses Should Prepare

No Immediate Action Required for Most Taxpayers

For individual taxpayers, the transition to the new Income Tax Act will be largely automatic — the tax portal, ITR forms, and software will be updated by the CBDT and the software providers. The substantive obligations (tax rates, deductions, TDS) remain the same. The main adjustment required will be familiarity with new section numbers (which will be referenced in any legal notices, assessment orders, or tax planning documents received after the transition).

Software and System Updates

Businesses, payroll departments, and accounting software users will need to update their systems once the Act is enacted and the effective date is notified. Key systems to update: payroll software (for TDS on salary computation); accounts payable systems (for vendor TDS deduction); ERP systems that reference income tax provisions; and internal policies and manuals that reference the 1961 Act.

Transition for Ongoing Assessments and Appeals

Assessments and appeals in progress when the new Act takes effect will need to reference either the 1961 Act (for income earned before the effective date) or the new Act (for income earned after the effective date). There will typically be a transitional provision in the new Act specifying how assessments under the old Act are to be completed. This is particularly relevant for Transfer Pricing assessments and appeals, which often span multiple years, and for any ongoing income tax return assessments or CIT(A)/ITAT appeals.

Historical Background — Earlier Attempts at Tax Code Simplification

The Income Tax Bill, 2025 is not India's first attempt to replace the 1961 Act. The Direct Tax Code (DTC) was the earlier attempt — first proposed in 2009 (DTC, 2009), revised in 2010 (DTC, 2010), and further revised in 2013. The DTC proposed more radical changes than the current Bill, including changes to tax rates and fundamental restructuring of investment deductions. The DTC ultimately did not proceed to enactment — its ambition (changes to tax rates and deductions) attracted fierce opposition from affected industries and taxpayers.

The Income Tax Bill, 2025 takes a deliberately more conservative approach: it focuses on simplification of language and structure without changing the substantive law. This "form" reform rather than "substance" reform is designed to make the Bill less controversial and more achievable. India's effort to simplify its income tax law is consistent with a global trend — the United Kingdom rewrote its income tax legislation through the Tax Law Rewrite Programme (1996–2010), and New Zealand, Australia, and Canada have also undertaken similar exercises.

Frequently Asked Questions About the New Income Tax Bill, 2025