Income Tax Act 2025 Section Mapper

Section Mapper › Section 44AB

Old Section 44AB → New Section 63

Tax audit

Old Act (1961)Section 44AB
New Act (2025)Section 63
Applies from1 April 2026 (Tax Year 2026-27). Returns for FY 2025-26 (AY 2026-27) still use the old number.

Sources

TaxGuru — Income-tax Act 2025 vs 1961: Section Mapping Cheat Sheet, TaxGST.in — Income Tax Act 2025: Old Vs New Sections And Forms, Durgesh Chavda (CA) — Income-tax Act 2025 Section Mapping

Also check the official CBDT concordance (Form 121) and the e-filing portal's comparison utility at incometax.gov.in.

Frequently asked questions

What is the new section for 44AB?
Section 63 of the Income-tax Act, 2025. The tax audit report (old Form 3CD) is now Form 26.

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