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Case law › Section 80AC

Section 80AC

Authorities that bear on section 80AC 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The Income-tax Act, 1961 was repealed on 1 April 2026.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 80AC — the law in short

What the courts have decided on section 80AC, 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 80AC — 11 entries

Worked examples

Notice situations in which section 80AC does the work, taken from the first line to the last. Each step carries the authority that licenses it.
A captive power unit's transfer to the company's own factory revalued from Rs 6.95 to Rs 3.60 a unit, and Rs 20,10,00,000 of the s.80-IA deduction gone The officer has valued the power my captive plant supplies to my own factory at the rate the distribution company pays me for surplus instead of the tariff it charges industrial consumers - what does s.80-IA(8) actually require, and does it matter that the transfer is a specified domestic transaction? 8 steps · 21 authorities · s.80-IA, s.80-IA(8), s.80-IA(5), s.80-IA(4) 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) 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 Your society's deposit interest, and whether 80P still reaches it The AO has taxed our fixed deposit interest as other sources and denied 80P because it is not derived from the credit business — is the claim gone? 6 steps · 16 authorities · s.80P, s.80AC, s.56

Explained in this library

What section 80ac does, in plain English, before you read what the courts made of it.

80P(2)(d) interest from a co-operative bank, and the filing trap

My society earns interest on deposits with a co-operative bank — is that deductible under 80P(2)(d)?

s.80-IA(5): the initial assessment year and the notional brought-forward loss

My windmill ran at a loss for its first few years and I set those losses off against my other business income. Now that it is finally profitable and I have started claiming section 80-IA, the assessing officer says those old losses must be notionally brought forward and knocked off the windmill's profit, so my deduction is nil. Can he do that, and who gets to decide which year is my "initial assessment year"?

s.80-IAC: three consecutive years out of ten, if the Board has certified you

We are a start-up. Can we take the 100 per cent deduction under s.80-IAC, and what has to be in place before we claim it?

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?

s.80JJAA: thirty per cent of the additional employee cost, for three years running

We have taken on new staff this year. What does s.80JJAA actually give us, and which of those employees count?

The 80P(2)(c) fallback: Rs 1,00,000, or Rs 50,000

Our society does not fit any of the activity clauses of 80P. Is there any deduction left for us?

The fifteen days on a s.139(9) notice, and what an invalid return costs

CPC says my return is defective and gives me fifteen days. What actually makes a return defective, and what happens if I miss the date?