Section FinderSection 80G of the Income-tax Act, 1961: now section 133
Old section 80G (Deduction in respect of donations to certain funds, charitable institutions, etc.) corresponds to section 133 of the Income-tax Act, 2025, according to the Income Tax Department’s navigator. Checked against the Act: the new section is about the same subject.
The first words of the new section
133. (1) In computing the total income of an assessee, there shall be deducted, as per and subject to the provisions of this section,— (a) the whole of the aggregate of the sum or the sums paid by the assessee, in the tax year as donations to–– (i) the National Defence Fund set up by the Central Government; or (ii) the Prime Minister’s National Relief Fund or the Prime Minister…
Quoted from the Act as published in the Gazette, only to show which section it is.
Which Act applies
The 2025 Act came into force on 1 April 2026 (its section 1(3)). Income of FY 2025-26 and earlier is dealt with under the 1961 Act (the Act’s section 536 and the CBDT’s transition FAQs, Q1.7 and Q1.12), so for those years the old section number is still the one that applies. For tax year 2026-27 onwards use the new number.
Common questions
What is old section 80G called in the new Act?
section 133 (navigator row: Deduction in respect of donations to certain funds, charitable institutions, etc.). checked against the Act: the new section is about the same subject
Does the 1961 section still apply?
For tax years that began before 1 April 2026 the 1961 Act continues to apply (section 536 of the 2025 Act; CBDT FAQs Q1.7 and Q1.12). Under the 2025 Act the new section applies from tax year 2026-27.
Sources
- Income Tax Department, "Section Mapping" navigator (old section of the Income-tax Act, 1961 against the section of the Income-tax Act, 2025; 22 pages, "Section number as per latest draft": it was prepared for the 2025 Bill). Saved by hand by the site owner from incometaxindia.gov.in and read on 13 November 2026.
- The Income-tax Act, 2025 (Act No. 30 of 2025), Gazette of India Extraordinary, 21 August 2025, 572 pages, from egazette.gov.in, read on 13 November 2026: every new section number below was looked up in it (535 of the 536 sections were located in the text).
- CBDT, "FAQs on Interplay and Transition to the Income-tax Act, 2025" (99 pages), saved by hand, read on 13 November 2026; and the Income Tax Department's "Form Mapping Guide" (4 pages), saved by hand, read on 13 November 2026.
Read on 13 November 2026. The Income-tax Act, 2025 came into force on 1 April 2026 (section 1(3)); the 1961 Act continues to apply to tax years before that (section 536 and the CBDT's FAQs). The mapping comes from the department's navigator, which was drawn up for the Bill, and each new number was checked against the enacted Act; rows that could not be checked are marked. This site is independent and not connected with the Income Tax Department; it is a reading aid, not tax advice.