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Case law › Section 36(1)(iii)

Section 36(1)(iii)

Authorities that bear on section 36(1)(iii) 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The Income-tax Act, 1961 was repealed on 1 April 2026.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 36(1)(iii) — the law in short

What the courts have decided on section 36(1)(iii), 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 36(1)(iii) — 17 entries

Worked examples

Notice situations in which section 36(1)(iii) does the work, taken from the first line to the last. Each step carries the authority that licenses it.
A machine that reached the factory in March and ran in May, a generator that never ran, and a godown bought without a registered deed The officer has knocked out my depreciation because the assets were not put to use in the year - which of those heads can I actually save, and what does the block of assets do for me? 8 steps · 19 authorities · s.32, s.32(1), s.32(1)(iia), s.32(2) Rs 1,42,70,000 of interest disallowed across six heads, from a sister-concern advance to a line that was not commissioned The officer has disallowed my interest because the money went to a group company, to a director and into a plant that was not running - how much of that is actually sustainable, and does it matter that my own funds are four times the advances? 8 steps · 23 authorities · s.36(1)(iii), s.37(1), s.14A, Rule 8D Rs 40,50,000 claimed under s.57 against interest from private lending, and an order that disallowed all of it in one paragraph The officer has disallowed everything I claimed under s.57 against my interest income - the interest I paid, the assistant's salary, a principal I wrote off - saying there is no direct nexus and the income is passive. How much of that can I get back? 8 steps · 16 authorities · s.57, s.57(i), s.57(ii), s.57(iii)

Explained in this library

What section 36(1)(iii) does, in plain English, before you read what the courts made of it.

s.36(1)(iii): interest you borrowed to earn, and the advance that was not

The officer has disallowed part of my interest because I gave an interest-free advance. On what basis can he do that?

s.40(b): what a firm may pay its partners and still deduct

The officer has disallowed the remuneration and interest we pay our partners. What does s.40(b) actually require?

s.41(1): the deduction taken in an earlier year, coming back

The officer wants to tax old creditor balances, a waived loan and a refund under s.41(1). What does he actually have to establish first?

The loan was added under s.68 — what happens to the interest?

The officer added my loan as an unexplained cash credit and disallowed the interest on it as well. Is the interest disallowance automatic?