India's direct tax framework entered a new era on 1 April 2026, as the Income Tax Act, 2025 officially came into force, replacing the Income Tax Act, 1961 after 65 years of operation. The new statute reorganises India's income tax law into 536 sections across 23 chapters, down from over 800 sections in the 1961 Act, while consolidating all TDS provisions under a single Section 393 and eliminating the long-standing dual terminology of "previous year" and "assessment year" in favour of a unified "tax year" concept.
Background
The Income Tax Act, 1961 had been amended over 4,000 times during its six decades of operation, resulting in a labyrinthine statute that was widely criticised for complexity, internal inconsistencies, and difficulty of compliance. The government introduced the Income Tax Bill, 2025 during the Budget Session, positioning it as a structural rewrite rather than a substantive overhaul of tax rates or slabs.
The new Act received Presidential assent as Act No. 30 of 2025 and has been further amended by the Finance Act, 2026. The Income Tax Department has released the complete Act booklet with a hyperlinked index to aid transition. The Act is applicable for Tax Year 2026-27 onwards, with all pre-2026 assessments continuing under the 1961 law.
Key Provisions
The restructured Act introduces several significant changes:
Section consolidation: Total sections reduced from over 800 to 536, organised across 23 chapters with clearer thematic grouping. Redundant and obsolete provisions from the 1961 Act have been eliminated.
TDS unification: All TDS provisions have been consolidated under Section 393, replacing the scattered Sections 194, 194A through 194T, and related provisions of the 1961 Act. This is the single most operationally significant change for tax practitioners.
Terminology simplification: The terms "previous year" and "assessment year" have been replaced by "tax year," eliminating a source of perpetual confusion in Indian tax compliance.
MAT rate reduction: The Minimum Alternate Tax rate has been reduced from 15% to 14%, with MAT being made a final tax and ending further credit accumulation from 1 April 2026.
Transition protections: The repeal of the 1961 Act does not disturb assessments, returns, or proceedings relating to tax years before 1 April 2026. Pending litigation and appeals continue under the old law.
Implications for Practitioners
Tax professionals face a significant transition period despite the Act being described as a structural rewrite rather than a substantive reform. Every compliance template, return format, advisory communication, and internal process document that references 1961 Act section numbers requires updating to the 2025 Act equivalents.
The TDS consolidation under Section 393 will require deductors to familiarise themselves with a new unified framework, though the underlying obligation mechanics remain substantively similar. Payroll teams and finance departments should update their software and processes before the first TDS return filing date under the new Act.
For litigation practitioners, the transition creates a period where parallel familiarity with both Acts is essential — pending assessments and appeals will continue under the 1961 Act, while new matters arise under the 2025 Act. The Income Tax Department's section mapping tools will be critical during this transition.
Corporate tax planners should note the MAT changes particularly: the shift to MAT as a final tax at 14% eliminates the credit carry-forward mechanism that many companies had relied upon for long-term tax planning.
Frequently Asked Questions
Do taxpayers need to do anything differently for the current financial year?
Yes, all income earned from 1 April 2026 onwards falls under the Income Tax Act 2025. Tax returns for Tax Year 2026-27 will be filed under the new law, using new section references and the "tax year" terminology. Taxpayers should ensure their tax software and advisors have updated to the 2025 Act framework before the filing season.