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ITA 1961 · Section 29

Section 29 — Income from PGBP How Computed

STATUTORY ARCHITECTURE — 18-ROW MAP

STATUTORY ARCHITECTURE — 18-ROW MAP

01. Section & marginal note

Section 29 — Computation -- PGBP — Chapter X-B (Transfer Pricing).

02. Sub-section structure

Per operative text — see Block 1 verbatim.

03. Operative trigger

International transaction (or SDT) between Associated Enterprises.

04. Persons affected

Resident or NR — wherever ALP / AE / international-transaction nexus exists.

05. Time anchor

Per financial year — TP documentation contemporaneous; Form 3CEB due with assessment.

06. Income anchor

Income from international transaction or SDT — to be computed at ALP.

07. Residential-status nexus

AE definition independent of residence; non-resident AE common.

08. Rate / charge mechanism

Recomputed income at ALP taxed at normal rates; primary + secondary adjustments separately.

09. TDS / TCS interaction

TDS u/s 195 on payments to NR-AE; rate consistent with treaty / domestic source rule.

10. Advance-tax obligation

Recomputed income subject to advance tax; interest u/s 234A/B/C.

11. Presumptive provisions

TP framework applies notwithstanding presumptive regime.

12. Exemption / deduction mechanism

Deductions disallowed if not at ALP; secondary adjustment may be repatriation-deemed.

13. Refund / credit

Net effect post-MAP / APA; foreign tax credit interplay.

14. Return / disclosure reporting

Form 3CEB (TP audit report); Master File (Form 3CEAA); CbCR (Form 3CEAC); Schedule TP in ITR.

15. Penalty exposure

Section 271AA / 271BA / 271G / 270A(9)(f) — TP-specific penalties.

16. Prosecution exposure

Section 276C — wilful evasion; rare in TP — civil-penalty framework dominates.

17. Cross-statute interplay

MLI Article 9 (treaty-level AE); OECD TP Guidelines 2022; BEPS Actions 8-10 / 13; FEMA / RBI.

18. Repeal & saving — 1961 → 2025

Section 536 of the 2025 Act saves pending TP proceedings; framework preserved.

HISTORICAL CONTEXT

Section 29 (Computation -- PGBP) is part of Chapter IV-C - PGBP — the income-tax act framework of the Income-tax Act, 1961. The provision establishes operative rules within the comprehensive income-tax act framework architecture.

The section operates in coordination with companion provisions in the same chapter and related chapters. Practitioner-relevant — verbatim text (Block 1) sets out the operative language; the architecture map and worked examples adapt the provision to typical practice scenarios.

The 2025 Act preserves the framework substantially intact; section 536 of the 2025 Act saves pending proceedings under the 1961 Act framework. Practitioner discipline — comprehensive documentation; Rule-compliance; appropriate appellate / revisional strategy where disputes arise.

The transition to the Income-tax Act, 2025 preserves the TP framework substantively intact; pending TPO / DRP / APA / MAP proceedings continue under section 536 saving.

FINANCE ACT AMENDMENT TIMELINE

Income-tax Act 1961 — Original provision framework.

Finance Act 1989 — Major restructuring across many chapters.

Finance Act 2001 — Procedural refinements.

Finance Act 2012 — Anti-avoidance + TP refinements.

Finance Act 2017 — Faceless framework introduction.

Finance Act 2020 — Comprehensive faceless framework.

Finance Act 2021 — Reassessment + Settlement Commission restructuring.

Finance Act 2024 — Procedural refinements.

Finance Act 2025 — Framework preserved; Income-tax Act 2025 s. 536 saving.

Finance Act, 2026 (Act 4 of 2026) — no amendment to s. 29.

JUDICIAL EVOLUTION — VERIFIED LANDMARK AUTHORITIES

▸ Mathuram Agrawal v. State of Madhya Pradesh (1999) 8 SCC 667 ; (2000) 1 SCR 1 (Supreme Court)

Facts. A municipal levy was challenged on the ground that the charging provision did not clearly specify the rate, the persons charged, and the measure of tax.

Issue. Whether a tax can be imposed in the absence of a clear, unambiguous charging provision identifying the subject, measure, rate, and incidence.

HELD. Article 265 demands that tax be levied only by clear authority of law. The four components — taxable event, person, rate, and measure — must be clearly discernible from the charging provision; ambiguity is fatal to the levy.

“The intention of the Legislature in a taxation statute is to be gathered from the language of the provisions, particularly when the language is plain and unambiguous. In a taxing Act it is not possible to assume any intention or governing purpose other than what is given expression to.”

Relevance. Foundational authority on the rigour required of charging sections — underpins arguments that ambiguous deeming fictions, surcharge formulas, and rate prescriptions must be strictly construed.

▸ Commissioner of Income-tax v. Vatika Township Pvt. Ltd. (2014) 367 ITR 466 ; (2015) 1 SCC 1 (Supreme Court — 5-Judge Constitution Bench)

Facts. The Department sought to apply a surcharge provision retrospectively to block-period assessments. The assessee contended that the amendment was substantive and could not have retrospective operation absent express legislative direction.

Issue. Whether amendments to taxing statutes operate prospectively unless the legislature has expressly or by necessary implication conferred retrospective effect.

HELD. The Constitution Bench reaffirmed the general rule against retrospectivity of taxing statutes. A taxing provision must be construed prospectively unless the language compels otherwise; mere insertion or substitution by amendment is not sufficient to deny vested rights.

“Of the various rules guiding how a legislation has to be interpreted, one established rule is that unless a contrary intention appears, a legislation is presumed not to be intended to have a retrospective operation.”

Relevance. Anchor authority for any argument that an amendment to a charging or computational provision must apply only from the AY notified — useful in transitional disputes around FA 2025 and the 1961 → 2025 changeover.

▸ K.P. Varghese v. Income-tax Officer, Ernakulam (1981) 131 ITR 597 ; (1981) 4 SCC 173 (Supreme Court — 3-Judge Bench)

Facts. Section 52(2) (since deleted) deemed sale consideration to be FMV where FMV exceeded the declared consideration by 15%. The Department applied it on a literal reading even when the assessee had not in fact received more than the declared price.

Issue. Whether a deeming provision in a charging schema can be construed literally where its plain reading produces a result manifestly contrary to legislative object.

HELD. The Court read down section 52(2) to apply only where the assessee had actually received consideration in excess of the declared sum. A literal construction yielding absurd or unjust results must yield to an object-based interpretation; the CBDT's contemporaneous Circular No. 96 was held binding on the Revenue.

“It is well settled that a literal construction of a statutory provision ought not to be adopted if it produces a manifestly unjust result… Where a literal construction creates an anomaly, the courts will adopt that construction which avoids the anomaly.”

Relevance. Anchor authority for purposive construction of deeming fictions across the 1961 Act — applies wherever a deeming clause (e.g., s. 50C, s. 56(2)(x), s. 2(22)(e)) yields a result contrary to legislative purpose.

▸ Commissioner of Income-tax v. Kanpur Coal Syndicate (1964) 53 ITR 225 ; AIR 1965 SC 325 (Supreme Court)

Facts. The assessee in appeal sought to raise new grounds going to the question whether income was assessable in the hands of the firm or in the hands of its members; the AAC had taken a narrow view of his appellate jurisdiction.

Issue. Scope of the first-appellate authority's jurisdiction — is it co-terminus with the AO's, or limited to the grounds raised by the assessee?

HELD. The first-appellate authority (CIT(A) under the present scheme) has plenary powers co-terminus with the AO; he can confirm, reduce, enhance, or annul the assessment, and consider any aspect arising out of the assessment record.

“The Appellate Assistant Commissioner has plenary powers in disposing of an appeal. The scope of his power is co-terminus with that of the Income-tax Officer. He can do what the ITO can do and also direct him to do what he has failed to do.”

Relevance. Foundational on CIT(A)'s jurisdiction — supports raising new legal grounds in first appeal under section 246A / section 251; counter-poised by Rule 46A on additional evidence.

▸ Calcutta Discount Co. Ltd. v. Income-tax Officer, Companies District I, Calcutta (1961) 41 ITR 191 ; AIR 1961 SC 372 (Supreme Court — Constitution Bench)

Facts. The assessee challenged a section 34 reassessment notice on the ground that the ITO had no jurisdictional foundation to reopen; the Revenue contended that the writ jurisdiction was ousted by the statutory appeals scheme.

Issue. Whether the High Court's jurisdiction under Article 226 is ousted by the existence of a statutory remedy where the reassessment notice itself lacks jurisdictional foundation.

HELD. Existence of an alternative statutory remedy does not oust Article 226 jurisdiction where the impugned action is wholly without jurisdiction. The burden is on the assessee to disclose all primary facts; the duty to draw inferences rests with the assessing officer.

“The duty of the assessee in every case is to disclose fully and truly all primary facts. Once all primary facts are before the assessing authority, he requires no further assistance by way of disclosure.”

Relevance. Foundational on the boundary between assessee's disclosure duty and the ITO's investigative duty — supports challenges to s. 147/148 (1961) / s. 281 (2025) reassessments on jurisdictional grounds.

CBDT CIRCULARS — ECOSYSTEM

▸ CBDT Circular No. 14(XL-35) of 1955 dated 11 April 1955

Subject. Duty of officers to assist assessees in claiming and securing relief

Substance. Foundational circular directing that the AO should not exploit assessee ignorance to deny legitimate reliefs; officer is required to draw attention to refunds or reliefs to which the assessee is entitled. The circular has been judicially noted in several appellate decisions and remains operative for first-appellate practice.

▸ CBDT Circular No. 549 dated 31 October 1989

Subject. Explanatory notes — Finance Act 1989 amendments (incl. PY unification)

Substance. Explained the FA 1987 / FA 1989 amendments unifying the previous year with the financial year preceding the AY, including transitional provisions for assessees with different accounting years. Useful in any controversy on the timing of accrual / chargeability for early post-1989 AYs.

▸ CBDT Circular No. 5 of 2014 dated 11 February 2014

Subject. Section 14A — dis-allowance even where no exempt income earned (since modulated)

Substance. Initially directed AOs to apply Rule 8D disallowance under section 14A even where no exempt income was earned in the year; subsequently modulated by Cheminvest (Del HC) and Maxopp (SC). FA 2022 amendment to section 14A re-asserted the position but remains under litigation.

▸ CBDT Circular No. 6 of 2019 dated 20 March 2019

Subject. Withdrawal of low-tax-effect appeals — monetary thresholds

Substance. Revised monetary thresholds for departmental appeals — ITAT (Rs 50L), HC (Rs 1 Cr), SC (Rs 2 Cr); subsequently further revised. Operates as a non-statutory limitation on the Revenue's appellate engagement, binding under section 119.

▸ CBDT Circular No. 5 of 2024 dated 15 March 2024

Subject. Procedure for transitional reassessment notices post-Ashish Agarwal / Rajeev Bansal

Substance. Procedural guidance for AOs handling transitional reassessment notices for AYs 2013-14 to 2017-18 affected by Ashish Agarwal and Rajeev Bansal. Sets out the form of section 148A inquiry, time-bar calculation under TOLA, and JAO/FAO jurisdiction in faceless cases.

WORKED EXAMPLES

Illustration — Illustration 1 — Standard 29 application

Facts. Standard scenario invoking section 29 (Computation -- PGBP).

Computation.

Operative provision applied per bare-Act framework.

Section 29 invocation; companion-section coordination per Chapter IV-C - PGBP.

Result. Standard framework operative.

Illustration — Illustration 2 — Bona-fide-difficulty defence

Facts. Assessee establishes bona-fide difficulty.

Computation.

Document supporting circumstances; section 119(2)(a) CBDT discretion; bona-fide-difficulty mitigation framework.

Result. Mitigation framework available.

Illustration — Illustration 3 — Appeal pathway

Facts. Disputed application of section 29.

Computation.

Section 246A appeal → CIT(A); section 253 ITAT; section 260A HC.

Standard appellate route preserved.

Result. Full appellate framework available.

Illustration — Illustration 4 — Section 264 revision alternative

Facts. Alternative pathway via Commissioner.

Computation.

Section 264 — CIT revisional review; lower-cost alternative to formal appeal.

Result. Revisional alternative available.

Illustration — Illustration 5 — Documentation discipline

Facts. Practitioner discipline for section 29.

Computation.

Comprehensive documentation: relevant deeds, forms, correspondence, computational working papers.

8-year preservation.

Result. Documentation = defence strength.

PRACTITIONER PLANNING NOTES

Comprehensive analysis of section 29 operative scope.

Documentation discipline — 8-year preservation.

Form / Schedule compliance per applicable framework.

Section 119(2)(a) CBDT relief — hardship cases.

Section 154 rectification — computational errors.

Section 246A appeal — substantive disputes.

Section 264 revision — alternative pathway.

Article 226 writ — jurisdictional defects.

Bona-fide-explanation framework throughout.

Reliance Petroproducts ratio for genuine claims.

Vatika Township prospectivity protection.

Mathuram Agrawal strict-construction defence.

KP Varghese purposive interpretation.

Time-bar / limitation awareness.

Cross-section coordination within chapter.

LITIGATION DEFENCE

Mathuram Agrawal — strict construction of penal / charging provisions.

Vatika Township — prospective amendments; retrospective treatment disfavoured.

KP Varghese — purposive construction within statutory text.

Reliance Petroproducts — bona-fide claim disclosed in return is not concealment.

Dilip N. Shroff — mens rea / discretion in disclosure framework.

Section 246A appeal — comprehensive substantive review.

Section 264 revision — alternative pathway.

Section 154 rectification — computational corrections.

Section 482 CrPC / Article 226 writ — jurisdictional defects.

Section 119(2)(a) — CBDT relief in genuine hardship.

Documentation 8 years — comprehensive defence file.

Cross-reference to companion provisions in chapter.

Procedural compliance check at every stage.

Time-bar / limitation defence where applicable.

Coordination with Department — bona-fide engagement.

Expert / professional opinion reliance — Reliance Petroproducts extension.

STEP-BY-STEP PROCEDURE — 15 STEPS

Step 1. Identify operative framework

Determine section 29 application; companion-section coordination.

Step 2. Documentation discipline

Comprehensive documentation collection and indexing.

Step 3. Form / Schedule compliance

Identify applicable Forms; timely filing.

Step 4. Computational working

Working papers reconciled with bare-Act + Rules.

Step 5. Return filing

Section 139 — appropriate return type; verification.

Step 6. Schedule TR / TP

Tax-credit and TP schedules where applicable.

Step 7. Section 143(1) processing

Department processes; intimation analysed.

Step 8. Scrutiny under section 143(2) (if selected)

Comprehensive response preparation.

Step 9. Order receipt + analysis

Quantum analysis + appellate-strategy.

Step 10. Section 154 rectification (if applicable)

Computational errors corrected.

Step 11. Section 246A appeal (if disputed)

CIT(A) → ITAT → HC → SC.

Step 12. Section 264 revision (alternative)

CIT revisional review.

Step 13. Article 226 writ (if jurisdictional defect)

HC supervisory framework.

Step 14. Section 119(2)(a) CBDT relief (if hardship)

Discretionary framework.

Step 15. Documentation 8 years preserved

Comprehensive file maintained.

PRACTITIONER CHECKLIST — 19 ITEMS

PRACTITIONER CHECKLIST

Section 29 operative framework identified.

Documentation collected.

Forms / Schedules identified.

Computational working prepared.

Return filed timely.

Schedule TR / TP completed.

Section 143(1) intimation analysed.

Section 143(2) response (if applicable).

Order received + analysed.

Section 154 rectification (if applicable).

Section 246A appeal (if disputed).

Section 264 revision (alternative).

Article 226 writ (if jurisdictional defect).

Section 119(2)(a) CBDT relief (if hardship).

Documentation 8 years preserved.

PAN-Aadhaar linkage.

DSC active for e-filing.

Bank-account validated.

Coordination + Department communication.

CROSS-REFERENCES (28+)

CROSS-REFERENCES

Section 29 — Operative framework.

Chapter IV-C - PGBP companion sections.

Section 246A — Appeal framework.

Section 253 — ITAT framework.

Section 260A — HC framework.

Section 264 — Revision framework.

Section 154 — Rectification framework.

Section 119(2)(a) — CBDT relief.

Section 281 — Void transfers.

Section 222 — Recovery.

Section 244A — Refund interest.

Income-tax Rules 1962.

CrPC 1973.

Indian Evidence Act 1872.

Income-tax Act 2025 — s. 536 saving.

BNS 2023.

Companies Act 2013.

FEMA 1999.

PMLA 2002.

MLI Article 25 — MAP.

DTAA framework.

DPDP Act 2023.

Aadhaar Act 2016.

PAN framework (s. 139A).

DSC framework.

E-Verification framework.

GST Acts.

RTI Act 2005.

Caution — corrections in this revision

This revision applies the FA 2026 overlay against the prior v2 (FA 2025) draft. Variant comparison performed: two Cowork files supplied for s. 29 — the un-suffixed original and the EXPANDED v2 (2026-05-25). Same pattern as the broader Part E batch: the original’s Block 1 is missing the marginal heading (“29. Income from profits and gains of business or profession, how computed.”); the EXPANDED v2 carries the correct, complete verbatim text. Beyond Block 1, the original contributed no substantive unique content; EXPANDED v2 taken as canonical base. Changes recorded: (i) masthead caption updated “as amended by the Finance Act, 2025” → “as amended by the Finance Act, 2026”; (ii) Finance Act Amendment Timeline carries a new closing bullet “Finance Act, 2026 (Act 4 of 2026) — no amendment to s. 29” — s. 29 is not on the FA 2026 Chapter III Part A footprint; (iii) no year-anchor re-anchoring required — the s. 29 illustrations and historical context carry no fact-year PY anchor in the visible content. Open audit FLAGs: (a) MAJOR — the v2 base carries TRANSFER-PRICING-TEMPLATE CONTAMINATION inherited from the Cowork v3 template: Block 3 narrative includes the phrase “The transition to the Income-tax Act, 2025 preserves the TP framework substantively intact; pending TPO / DRP / APA / MAP proceedings continue under section 536 saving” — this is content from the TP machinery (s. 92, s. 92CA, s. 144C etc.) wrongly imported into the s. 29 computational-chapeau commentary. s. 29 is a one-line provision that simply states “The income referred to in section 28 shall be computed in accordance with the provisions contained in sections 30 to 43D” — it has no TP nexus whatsoever. Same TP-template contamination pattern flagged at Chapter III close (sections 10A / 10AA / 10B / 10BA / 10BB / 10C); preserved per the targeted-edits-only workflow but flagged for substantive Block 3 rewrite at master pass; (b) the case-law list is the generic Cowork template (Vatika Township / K.P. Varghese / Mathuram Agrawal / B.C. Srinivasa Setty / Excel Industries) — not specific to the s. 29 computational-chapeau; the genuinely relevant authorities are limited because s. 29 is a mere referral provision, but CIT v. Modi Industries Ltd. (1995) 216 ITR 759 (SC) on the computational architecture of ss. 28-44 read together would be one anchor; flagged; (c) Block 2 right-hand column cites “Section 29 successor” without naming the Income-tax Act, 2025 (Act 30 of 2025) successor section number — pending verified successor mapping; (d) the Cowork v3 base does not carry a separate Source & verification notes cell (Standard B v2 requirement) — logged for forward-pass.

Case Laws & Commentary

SECTION 29 — Income from profits and gains of business or profession — How computed

Important Case Laws — 1961 Treatise (FA 2026)

Provision in brief: Section 29 is the machinery provision: income chargeable under s. 28 is to be computed in accordance with the provisions contained in sections 30 to 43D. Thus s. 29 makes the deductions / disallowances / definitions in ss. 30-43D part of the computational scheme; no PGBP income can be computed except by reference to these sections.

Section Commentary

Machinery clause for computing PGBP

Section 29 is the bridge between the charging section (s. 28) and the computational scheme (ss. 30 to 43D). It simply states that income chargeable under s. 28 shall be computed in accordance with ss. 30 to 43D. Every PGBP item — whether deduction, disallowance, definition or special provision inserted later — is funneled through this gateway. Consequently, when FA 2018 inserted s. 43AA, s. 43CB and FA 2024 inserted s. 44BBC etc., these new computational provisions automatically became applicable without any further amendment to s. 29.

Interplay with commercial accounting

Where the Act is silent on a particular issue of computation, the courts have consistently allowed recourse to accepted commercial accounting principles. Calcutta Co. permitted accrued-liability deduction matching accrued revenue; Madras Industrial Investment Corpn. permitted spread of debenture discount over the loan life; Challapalli Sugars permitted capitalisation of pre-production interest. These rulings give s. 29 a flexible, principle-driven character — but only where the Act has no specific override (e.g., s. 43A overrides accrual for capital FX; s. 43B overrides accrual for statutory dues). Post-FA 2018, ICDS notifications u/s 145(2) have further narrowed the play of pure accountancy.

Method of accounting — interface with s. 145 and ICDS

PGBP computation operates within the s. 145 framework — assessee may follow cash or mercantile method, but consistently. Ten ICDS standards (notified 31.3.2015, revised 29.9.2016) prescribe the manner of income recognition (revenue, construction contracts, inventories, fixed assets, foreign currency, government grants, securities, borrowing costs, accounting policies, contingent liabilities). Conflict between ICDS and judicial precedent was addressed by FA 2018 inserting ss. 36(1)(xviii), 40A(13), 43AA and 43CB. The practitioner must therefore reconcile (i) the book treatment under AS / Ind-AS, (ii) the tax treatment under ICDS, and (iii) the position under the Act itself.

Pre-commencement vs commenced business

Tuticorin Alkali Chemicals holds that interest earned on borrowed funds before commencement of business cannot be netted against pre-operative interest expense; it is 'Other Sources' income. Bokaro Steel softens this where the receipt is 'inextricably linked' with the capital construction (e.g., rent recovered from contractor occupying site quarters). The line is whether the receipt arises out of the construction process or is independent of it. Mis-classification often becomes the trigger for re-assessment notices.

Practical compliance for CA

(i) Identify the assessee's method of accounting and ensure consistency. (ii) Maintain an ICDS disclosure note (Annexure to tax audit report — Form 3CD Cl. 13(f)). (iii) Reconcile book profits under Schedule III with tax-PGBP via a deferred-tax-style schedule capturing s. 30-43D adjustments. (iv) Identify pre-commencement receipts/expenses carefully — these are often the highest-risk addition zone.

FA 2026 impact: No FA 2026 amendment. The reference to ss. 30 to 43D continues to govern; any new computational section inserted post-FA 2025 (e.g., s. 43AA, s. 43CB, s. 44BBC, s. 44BBD) automatically flows through s. 29.

Leading Decisions

1. Challapalli Sugars Ltd. v. CIT

Citation: (1975) 98 ITR 167 (SC)

Forum: Supreme Court of India

Facts & Issue: Assessee, a sugar manufacturer, paid interest on borrowings used to construct a factory prior to commencement of production and capitalised it as cost of the asset for depreciation purposes. The question was whether such interest could form part of 'actual cost' u/s 43(1) for computing depreciation u/s 32, even though Income-tax Act did not specifically provide for capitalisation.

Held / Ratio: The Supreme Court held that 'actual cost' must be construed in commercial / accounting parlance. Pre-production interest on borrowings utilised to acquire/install fixed assets is part of the cost of the asset and depreciation is allowable thereon. The Court relied on prevailing accountancy practice. This principle was later partly codified by Explanation 8 to s. 43(1) inserted by FA 1986.

Section relevance: Foundational interpretation of 'actual cost' u/s 43(1); links commercial accountancy to statutory computation under s. 29.

2. Madras Industrial Investment Corpn. Ltd. v. CIT

Citation: (1997) 225 ITR 802 (SC)

Forum: Supreme Court of India

Facts & Issue: Assessee issued debentures at a discount. Discount was the difference between face value (payable at maturity) and issue price (received upfront). Revenue contended that discount was either a capital expense or, if revenue, allowable only in year of redemption. Assessee claimed it as a deferred revenue expenditure to be spread over life of debentures.

Held / Ratio: The Supreme Court permitted the assessee to spread the discount over the life of the debentures and claim proportionate deduction each year. Although ordinarily revenue expenditure is deductible in the year incurred, where the benefit extends over several years and accounting demands spreading, the law permits a matching deduction. The Court noted that 'profit/gain' u/s 28-29 must be computed on commercial principles where the Act is silent.

Section relevance: Foundational on 'matching principle' as part of PGBP computation; allows deferred-revenue spread.

3. Calcutta Co. Ltd. v. CIT

Citation: (1959) 37 ITR 1 (SC)

Forum: Supreme Court of India

Facts & Issue: Assessee, a real-estate developer, sold plots receiving substantial advance from buyers, with an obligation to develop the land (roads, drainage, lighting) at its own cost. It claimed deduction in the year of sale for the estimated future development expenditure though the actual expenditure was incurred in subsequent years.

Held / Ratio: The Supreme Court allowed the deduction. Where a known and ascertained liability exists corresponding to the income recognised, the matching liability must be allowed even if the actual outflow is deferred. The Court endorsed mercantile-method principles in computing profits of the business and held that profits cannot be ascertained without setting off accrued obligations against accrued revenues.

Section relevance: Locus classicus on accrual / matching under PGBP computation; cited routinely in revenue-recognition disputes.

4. Tuticorin Alkali Chemicals & Fertilizers Ltd. v. CIT

Citation: (1997) 227 ITR 172 (SC)

Forum: Supreme Court of India

Facts & Issue: Assessee had not commenced business; deposited borrowed funds (intended for setting up plant) in bank for the interim and earned interest income. The interest was sought to be set off against pre-operative interest expense (capitalised), not offered as 'other sources'.

Held / Ratio: The Supreme Court held that interest earned on temporary deposit of borrowed funds, prior to commencement of business, is income from other sources u/s 56 — not business income u/s 28 — because no business has commenced. It cannot be netted against capitalised interest expense. The Court distinguished between fund-application and source-of-income tests.

Section relevance: Authoritative on commencement of business; clarifies what does NOT enter PGBP computation u/s 29.

5. CIT v. Bokaro Steel Ltd.

Citation: (1999) 236 ITR 315 (SC)

Forum: Supreme Court of India

Facts & Issue: Assessee, during the construction phase prior to commencement of business, earned receipts from contractors (rent for quarters, hire of plant, interest on advances) that were directly linked to the construction activity. Revenue, citing Tuticorin Alkali, sought to tax such receipts under 'Other Sources'.

Held / Ratio: The Supreme Court distinguished Tuticorin Alkali. Where receipts during construction are 'inextricably linked' with the setting up of the capital structure (e.g., rent recovered from contractor for site facilities), they go to reduce cost of construction and are NOT taxable as income. Only receipts independent of capital construction (e.g., interest on idle funds) are taxable separately.

Section relevance: Key counterpoint to Tuticorin Alkali — defines what receipts get netted against capital cost under PGBP framework.

6. Tata Iron & Steel Co. Ltd. v. State of Bihar

Citation: (1958) 9 STC 267 (SC) — principle adopted in IT context

Forum: Supreme Court of India

Facts & Issue: Question of fundamental principle: how is 'profit' to be ascertained for taxation. Although the case arose under sales tax, the principles were extensively borrowed in computing PGBP.

Held / Ratio: Profit is the surplus left after meeting all costs properly attributable to the income earned. Computation must follow accepted commercial principles. This case was relied upon in subsequent PGBP rulings (e.g., Madras Industrial Investment) to support matching / accrual / deferred-revenue treatment.

Section relevance: Established the commercial-profit principle that animates s. 29 computation where statutory provisions are silent.

— End of Section 29 Case-Law Note —