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Case law › Section 43B first proviso

Section 43B first proviso

Authorities that bear on section 43B first proviso 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The Income-tax Act, 1961 was repealed on 1 April 2026.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 43B first proviso — the law in short

What the courts have decided on section 43B first proviso, 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 43B first proviso — 5 entries

Worked examples

Notice situations in which section 43B first proviso does the work, taken from the first line to the last. Each step carries the authority that licenses it.
A s.43B(h) disallowance of Rs 1,62,00,000 where half the Udyam-registered suppliers are traders The Assessing Officer has disallowed everything I still owed to Udyam-registered suppliers at the year end under s.43B(h) - which of those suppliers actually count, and when do I get the deduction back? 8 steps · 27 authorities · s.43B(h), s.43B, s.43B first proviso, s.143(3)

Explained in this library

What section 43b first proviso does, in plain English, before you read what the courts made of it.

s.43B(h) in practice: whose status, which clock, and what the buyer must check

How far do I have to go in checking whether my supplier is a micro or small enterprise, and is it 15 days or 45?