The Income Tax Act 2025 has been restructured, with 819 sections being consolidated into 536. This change is effective from April 1, 2026. Tax professionals and corporates can use various tools to map the old sections to the new sections, ensuring they are prepared for the transition. The tools provide instant results, saving time and effort during the research process.
INCOME TAX ACT 2025 · EFFECTIVE APRIL 1, 2026
IT Act Mapper 1961 → 2025
Cross-reference tool for tax professionals. Map any section — 44AB, 80C, 139, TDS, and all 819 provisions. Instant, no login.
Frequently Searched Mappings
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| IT Act 1961 Section | Description | IT Act 2025 Section |
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Frequently Asked Questions
What is the IT Act Mapper and how accurate is it?
The IT Act Mapper is a professional cross-reference tool that maps sections from the Income Tax Act 1961 to the corresponding sections in the new Income Tax Act 2025. Our database is developed by an in-house tax research team and cross-referenced with the official gazette notification and CBDT clarifications. It covers all 819 sections from the 1961 Act mapped to the 536-section structure of the 2025 Act, providing accuracy suitable for professional tax practice.
What is income tax section code mapper?
An income tax section code mapper is a tool that helps taxpayers, CAs, and tax professionals find the corresponding section numbers between different versions of the Income Tax Act. With the introduction of the Income Tax Act 2025 (effective April 1, 2026), every section from the 1961 Act has been renumbered. The mapper allows you to enter any old section number (like 44AB, 80C, or 194J) and instantly receive the new section number under the 2025 Act, along with descriptions and important notes about any substantive changes.
What is the new Income Tax Act 2025?
The Income Tax Act 2025 is a comprehensive rewrite and restructuring of the Income Tax Act 1961, effective from April 1, 2026. It reduces the total sections from 819 to 536, simplifies language, removes obsolete provisions, and reorganizes the law for better readability and compliance. While most tax rates, thresholds, and substantive provisions remain unchanged, every section has been renumbered and many have been merged or restructured. This modernization aims to make tax laws more accessible and easier to administer.
What is the difference between Income Tax Act 1961 and 2025?
The key differences between the Income Tax Act 1961 and the new Income Tax Act 2025 include: (1) Section count reduced from 819 to 536 through consolidation and removal of obsolete provisions; (2) Complete renumbering of all sections - every familiar section number from the 1961 Act has changed; (3) Simplified and contemporary language replacing archaic legal phrasing; (4) Restructured organization with logical grouping of related provisions; (5) Removal of redundant and outdated clauses. However, most tax rates, deduction limits, and substantive tax policies remain unchanged. The transition requires updating all internal documents, software templates, and client communications to reference the new section numbers from April 1, 2026 onward.
How do I find corresponding sections in the new 2025 Act?
You can find corresponding sections using this IT Act Mapper tool in three simple steps: (1) Enter any section number from the Income Tax Act 1961 - the tool accepts all formats including simple numbers (80C), sub-sections (139(1)), composite references (10(10D)), and TDS sections (194J); (2) Get instant results showing the new section or clause number from the 2025 Act, the topic heading, and any substantive change notes; (3) Export the result as PDF or CSV for your records. The complete database maps all 819 sections of the 1961 Act to the 536-section structure of the Income Tax Act 2025, making it easy to update your working papers, brief your team, or maintain audit trails for the transition year.