Additions for Unaccounted Sales Are Invalid If Based on Estimated Yield Production Without Cogent Evidence
Issue
Whether the tax authorities can validly reject an assessee’s books of account under Section 145(3) and add income for alleged unaccounted sales based purely on a mathematical estimation of production yield, without providing any adverse or corroborative material.
Facts
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The assessee is a manufacturer of re-rolled steel products, including heavy steel structurals, joists, and girders.
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A search operations under the Income-tax Act, 1961, was conducted on the business premises of the assessee.
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The Assessing Officer (AO) rejected the assessee’s books of account under Section 145(3), declaring them unreliable because the declared production yield in the Steel Melting Shop (SMS) Division was lower than expected.
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The AO adopted an estimated production yield ratio of 89% for the SMS Division, mathematically calculated alleged unaccounted production and consequential sales, and made substantial income additions.
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On appeal, the Commissioner (Appeals) examined a registered valuer’s certificate and found that the assessee’s actual consumption of raw materials (sponge iron) and electricity power was completely reasonable.
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The Commissioner (Appeals) deleted the additions, concluding that the AO failed to provide any adverse material to prove unaccounted production and had invalidly rejected the books.
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The Income Tax Appellate Tribunal (ITAT) upheld the deletion, confirming that the AO relied on mathematical assumptions without any actual proof of unaccounted sales.
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The High Court subsequently dismissed the Revenue’s appeal, ruling that the matching findings of the lower authorities were pure findings of fact, well-supported by evidence, and free from perversity.
Decision
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Held, yes: The Supreme Court dismissed the Revenue’s Special Leave Petition (SLP) because no ground for interference was established against the well-reasoned order of the High Court.
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Held, yes: The concurrent findings of fact recorded by the lower appellate authorities and the High Court—which established that the AO’s additions were baseless and lacked evidentiary support—are fully sustainable.
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In favour of assessee: The entire tax addition on account of presumed unaccounted sales is completely deleted.
Key Takeaways
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No Rejection on Hypotheses: Books of account cannot be casually thrown out under Section 145(3) based on a theoretical or ideal production yield. If the manufacturing inputs match technical standards, the books must be accepted.
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Actual Proof Needed for Unaccounted Sales: To sustain an addition for secret, out-of-books sales, the Revenue department must provide direct evidence of clandestine manufacturing, undisclosed raw material purchases, or secret cash receipts—not just math equations.
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Concurrent Findings of Fact Are Final: When the Commissioner (Appeals), the Tribunal, and the High Court uniformly find that a tax addition lacks a factual basis, the apex court will not disturb that conclusion unless the evaluation is completely perverse.

