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Case law › Section 4

Section 4

Authorities that bear on section 4 of the Income-tax Act, 1961. Each one tells you what it decided and what to do if it applies to you.

The Income-tax Act, 1961 was repealed on 1 April 2026. It still governs income earned up to 31 March 2026, and every proceeding about those years however late — assessment, reassessment, rectification, penalty, revision and appeal alike. Income earned from 1 April 2026 is governed by the Income-tax Act, 2025. What changed, and which Act governs your year →

Section 4 — the law in short

What the courts have decided on section 4, in one screen. Read this first; open an entry when you need the facts, the reasoning and the source.

Listed strongest first: Supreme Court, then High Court, then Tribunal, then CBDT. Nothing here has yet been read in full by a chartered accountant — open an entry to see where it came from.

Section 4 — 61 entries

Explained in this library

What section 4 does, in plain English, before you read what the courts made of it.

An AOP is a person in its own right, and s.167B decides what it pays

Two of us are running a joint venture with no company and no registered firm. Who does the department assess?

Diversion at source, or application after the event

Money leaves my hands under a binding obligation before I ever enjoy it. Am I still taxed on it?

Mutuality: what a society or club can take from its own members, and where it stops

Our housing society collects maintenance, transfer fees and non-occupancy charges from members and earns interest on its fixed deposits. What is actually taxable?

Real income: an entry in the books is not an accrual

The AO says I follow the mercantile system, so the amount accrued whether or not I will ever see it. Is that right?

Which Act governs your year: the 1961 Act after 1 April 2026

I am holding a notice and I do not know whether my year is under the Income-tax Act, 1961 or the Income-tax Act, 2025. Which Act applies to me, and is the old Act still of any use now that it has been repealed?