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Case law › Section 139(4)

Section 139(4)

Authorities that bear on section 139(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The Income-tax Act, 1961 was repealed on 1 April 2026.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 139(4) — the law in short

What the courts have decided on section 139(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 139(4) — 26 entries

Worked examples

Notice situations in which section 139(4) does the work, taken from the first line to the last. Each step carries the authority that licenses it.
A s.139(9) notice on a turnover difference between Form 3CD and the return, answered eight months after the fifteen days ran out The processing centre called my return defective, the fifteen days have gone and the portal now shows the return as invalid - is the loss carry-forward and the deduction gone, and what do I do first? 8 steps · 55 authorities · s.139(9), s.139(9) proviso, s.139(9) Explanation, s.139(1) A shop sold in June 2023, Rs 95,00,000 paid to a builder, the balance left in a savings account, and an exemption confined to what was spent My client never opened a capital gains account and the officer has cut his s.54F exemption down to what he actually paid the builder - is the belated return argument any use to me, and what is left after it? 8 steps · 25 authorities · s.54, s.54F, s.54(2), s.54F(1) I've put the plot money into a flat and into bonds - how much of the gain does that actually save? I sold a plot, paid part of the money to a builder for a flat and part into capital gain bonds, and I filed my return late. How much of the gain is actually exempt, and what have I already lost? 8 steps · 27 authorities · s.54F, s.54EC, s.54, s.54F(4) The State audit finished in January, the return went in late, and the whole 80P deduction has gone on the date alone Our society filed after the due date because the statutory audit was not finished. Is the deduction really lost on that alone, and what happens to the penalties on our cash counter and the tax on our withdrawals? 8 steps · 25 authorities · s.80P, s.80P(2)(c), s.80P(4), s.80AC

Explained in this library

What section 139(4) does, in plain English, before you read what the courts made of it.

Revised, belated and updated returns

I missed reporting some income two years ago. Can I still fix it, and what will it cost?

s.80AC and a claim first made in a revised return

We filed by the due date but claimed the deduction for the first time in a revised return. Does s.80AC still take it away?

s.80AC: file by the due date, or the deduction goes

Our return was late. Does that by itself kill the deduction we claimed?