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Case law › Section 271B

Section 271B

Authorities that bear on section 271B 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The Income-tax Act, 1961 was repealed on 1 April 2026.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 271B — the law in short

What the courts have decided on section 271B, 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 271B — 12 entries

Worked examples

Notice situations in which section 271B does the work, taken from the first line to the last. Each step carries the authority that licenses it.
A consultant who filed at six per cent under s.44AD, recast at fifty per cent, and then told that no presumptive section applies to him at all The officer says my work is technical consultancy so s.44AD is shut to me, and that my receipts are above the s.44ADA ceiling so that section is shut too - where does that leave me on income, books, audit and penalty? 8 steps · 32 authorities · s.44ADA, s.44AD, s.44AD(6), s.44AD(4) A presumptive return, an AIS mismatch, and an audit penalty I declared 8 per cent under the presumptive scheme - can the AO add my cash deposits and penalise me for not getting audited? 7 steps · 17 authorities · s.44AD, s.69A, s.115BBE, s.271B Intraday, index options, castor seed, currency futures and a copper hedge, all swept into one speculation business and set against nothing The officer has called my company's entire share and derivative activity a speculation business under the Explanation to s.73 and refused to set the loss off against my interest income - which of those transactions is actually speculative? 7 steps · 18 authorities · s.43(5), s.43(5)(a), s.43(5)(b), s.43(5)(c)

Explained in this library

What section 271b does, in plain English, before you read what the courts made of it.

Tax audit under s.44AB: the limits as the department states them

Do I have to get a tax audit this year, and which limit applies to me?

The s.271B penalty, and the s.273B answer to it

The officer has levied a penalty because the tax audit report was late. What can be said against it?

What counts as turnover when you test the audit limit

How do I compute turnover for the s.44AB threshold when the business is settled by differences — intraday, futures, options?