Zero rated supply

Section 16 — Zero rated supply

BLOCK 2 — PRE-GST COUNTERPART / PARALLEL PROVISIONS / OPERATIVE RULES

BLOCK 3 — COMMENTARY

1. Statutory Architecture

2. Historical Context

Section 16 IGST is the operational centrepiece of India's export-promotion architecture under GST. It defines zero-rated supply (exports + SEZ supplies), preserves the ITC chain despite zero rate (overriding the standard s. 17(2) CGST blocking for exempt supplies), and provides the refund mechanism for accumulated ITC.

Pre-GST, export incentives were fragmented across CST exemption (s. 5(1) CST Act), customs duty drawback, DEPB / DEEC / EPCG schemes, advance authorisation, and various FTP schemes. Service-tax exports were governed by POPS Rules Rule 6A. Each scheme had its own documentation, refund mechanism, and compliance overhead. Section 16 consolidates the IGST export framework into a single architecture with two operational routes.

Sub-section (1) defines zero-rated as (a) export of goods/services AND (b) supply to SEZ developer/unit. The FA 2021 amendment (effective from date yet to be notified) restricted (b) to supplies 'for authorised operations' — bringing SEZ supplies in line with SEZ Act authorised-operations framework. Until the FA 2021 amendment is notified, the pre-amendment broader scope continues to operate.

Sub-section (2) is the critical ITC-preservation provision. It overrides the standard rule that ITC on inputs used for exempt outward supplies must be reversed (s. 17(2) CGST). For zero-rated supplies, ITC is fully available — and refundable. This is the structural mechanism that achieves true export neutrality (no embedded Indian indirect taxes in exported goods/services).

Sub-section (3) was substituted by FA 2021. Pre-substitution, the sub-section provided two options to the exporter: (a) LUT route — no IGST payment, refund of unutilised ITC; (b) IGST-paid route — pay IGST, claim refund of IGST paid. Post-substitution (effective from date yet to be notified), only the LUT route is in sub-s. (3); the IGST-paid route is moved to sub-s. (4) where Government must notify the eligible class. The proviso adds a non-realisation deposit requirement — if export proceeds not realised within FEMA timeline, the refund + interest must be re-deposited within 30 days. Until FA 2021 is notified, the pre-amendment framework with both options to all exporters continues.

Sub-section (4) was inserted by FA 2021 (effective from date yet to be notified). It gives Government the power to notify (i) classes of persons who may use IGST-paid route + claim refund, and (ii) classes of goods/services that may be exported on IGST-paid + supplier claims refund. The post-FA 2021 framework therefore tightens the IGST-paid route to notified classes only — a policy response to instances of fraudulent IGST refund claims.

Sub-section (3) proviso non-realisation deposit — this is a substantial new compliance burden. Under FEMA + RBI Master Direction on Export of Goods, sale proceeds must typically be realised within 9 months from date of export. If not realised within 30 days of expiry of FEMA timeline, the LUT-route refund + s. 50 interest must be re-deposited. This shifts non-realisation risk back to the exporter at IGST level.

Operationally, the choice between LUT and IGST-paid routes (pre FA 2021 notification) depends on (a) exporter's ITC accumulation pattern, (b) cash-flow position, (c) frequency / timing of refunds, (d) FEMA realisation timeline confidence. LUT route preserves cash-flow but ITC refund takes longer; IGST-paid route uses ITC for IGST payment + auto-refund within 30-60 days under Rule 96.

SEZ supplies under s. 16(1)(b) have three operational routes: (a) LUT route under Rule 96A (no IGST), (b) IGST-paid + Rule 96 refund, (c) Notification 18/2017-IT(R) exemption (no IGST without LUT). The choice depends on the supplier's documentation infrastructure and the SEZ recipient's authorised-operations certification.

3. Judicial Evolution

Union of India v VKC Footsteps India Pvt Ltd — (2022) 2 SCC 603 [Supreme Court — 2-Judge Bench]

Brief Facts: Manufacturer-exporters with inverted duty structure (input GST > output GST) sought refund of accumulated input tax credit under s. 54(3) read with Rule 89(5) of the CGST Rules. Rule 89(5) permitted refund of unutilised ITC only on 'inputs' (goods), excluding 'input services'. Gujarat HC struck down the exclusion; Madras HC upheld it. SC heard the conflict.

Issue: Whether Rule 89(5) of the CGST Rules — by restricting inverted-duty refund to inputs (goods) and excluding input services — is ultra vires s. 54(3) of the CGST Act.

HELD: Rule 89(5) upheld. The Court held that s. 54(3) is enabling, not mandatory, and the legislative policy choice to confine inverted-duty refund to inputs (goods) is constitutionally permissible. The refund of unutilised ITC is not a constitutional right; it is a statutory concession that the legislature can shape and limit. The Court urged the GST Council to revisit the formula but did not strike down the rule.

"Refund of unutilised ITC is a statutory entitlement, not a constitutional right. The legislature in its wisdom may choose to grant the entitlement with such conditions and limitations as it thinks fit. We cannot rewrite the formula by judicial fiat."

Relevance: Definitive authority on inverted-duty refund mechanics, the policy/discretion distinction in refund jurisprudence, and the standard of review for delegated legislation under GST.

Chief Commissioner of Central Goods and Service Tax v Safari Retreats Pvt Ltd — (2024) SCC OnLine SC 2966 [Supreme Court — 2-Judge Bench]

Brief Facts: Safari Retreats constructed a shopping mall and leased it out — output supply was taxable rental. It sought ITC on construction goods/services (cement, steel, works contract). Revenue invoked s. 17(5)(d) of the CGST Act to deny ITC on inputs/input services used in construction of immovable property other than plant or machinery 'on his own account'. Orissa HC read down s. 17(5)(d) for leasing-out cases; SC heard the appeal.

Issue: Whether s. 17(5)(d) bars ITC on construction inputs/services where the immovable property constructed is itself used to make taxable outward supplies (here, rental); and what is the scope of the 'plant or machinery' exclusion.

HELD: ITC permitted in a 'functionality test' framework. The Court held that whether a building qualifies as 'plant' within the 'plant or machinery' exclusion is a fact-specific functional inquiry — if the building itself is the means by which the registered person makes outward taxable supplies (e.g., a hotel, a mall, a warehouse), it can qualify as plant and ITC on its construction is admissible. Matter remitted for application of functionality test.

"Whether a particular building qualifies as a plant within the meaning of the expression 'plant or machinery' is a question of fact that has to be determined keeping in mind the business of the registered person and the role that building plays in that business."

Relevance: Critical reset on ITC architecture for real-estate / leasing / hospitality. Important for IGST place-of-supply (immovable property) disputes where ITC architecture interacts with location-of-supply rules under s. 12(3) of the IGST Act.

Union of India v Mohit Minerals Pvt Ltd — (2022) 10 SCC 700 [Supreme Court — 3-Judge Bench (Constitution Bench questions)]

Brief Facts: Importers of coal on CIF basis were held liable under Notification Nos. 8/2017-Integrated Tax (Rate) and 10/2017-Integrated Tax (Rate) to pay IGST on ocean freight component under reverse charge under s. 5(3)/(4) of the IGST Act. Importers challenged the levy as ultra vires the charging section and contended that IGST had already been paid on CIF value (which included freight) at the time of import under s. 3(7) of the Customs Tariff Act.

Issue: Whether IGST could be levied separately on the ocean freight component of CIF imports when the entire CIF value (inclusive of freight) had suffered IGST under s. 3(7) of the Customs Tariff Act; and whether GST Council recommendations are binding on the Union and States.

HELD: Levy struck down. The Court held that the impugned notification offended the principle of 'composite supply' under s. 8 of the CGST Act because ocean freight in CIF imports is part of the composite supply of imported goods and cannot be artificially severed. Further, the GST Council's recommendations are recommendatory, not binding, on the Union and States — both Parliament and State legislatures have simultaneous legislative power under Article 246A.

"The recommendations of the GST Council are not binding on the Union and the States. The recommendations only have a persuasive value. To regard them as binding would disrupt fiscal federalism, where both the Union and the States are conferred equal power to legislate on GST."

Relevance: Foundational authority on the IGST charging section, the limits of reverse-charge notifications under s. 5(3)/(4), and the constitutional architecture of the GST Council. Repeatedly cited in RCM, place-of-supply, and composite-supply disputes.

Union of India v Bharti Airtel Ltd — (2022) 4 SCC 328 [Supreme Court — 2-Judge Bench]

Brief Facts: Bharti Airtel claimed it had under-reported ITC in GSTR-3B for July-Sept 2017 (the early GST months when GSTR-2A was not operational) and sought rectification of GSTR-3B for those months to correct the under-claim. Delhi HC permitted rectification; Revenue appealed to SC.

Issue: Whether GSTR-3B for past periods can be rectified to correct an under-claim of ITC where the registered person's books would support the correction but GSTN does not allow retrospective edit.

HELD: Rectification not permitted. The Court held that the GST return-filing regime is self-assessed; the registered person is duty-bound to verify entitlements at the time of filing and cannot, after the fact, claim that GSTR-2A was not available. ITC is a statutory entitlement that must be claimed within the period prescribed under s. 16(4) and not through retrospective rectification.

"GST is a self-assessment regime. The registered person bears the burden of correctly computing and reporting tax liability at the time of filing the return. The unavailability of GSTR-2A does not absolve the assessee of this duty."

Relevance: Substance-over-form authority on self-assessment, the finality of GSTR-3B, and limits on retrospective rectification — critical for place-of-supply disputes where mis-classification may be alleged years later.

Mafatlal Industries Ltd v Union of India — (1997) 5 SCC 536 [Supreme Court — 9-Judge Constitution Bench]

Brief Facts: Multiple manufacturers had paid central excise duty under protest, succeeded in challenges, and sought refund. The question arose whether the doctrine of unjust enrichment applies to indirect-tax refunds, whether refund can be denied if the burden has been passed on, and whether common-law refund claims survive the statutory refund regime.

Issue: Constitutional and doctrinal scope of refund of indirect taxes — whether unjust enrichment bars refund where burden has been passed on; whether the statutory refund mechanism is exclusive.

HELD: Constitution Bench held (i) the statutory refund mechanism under the Central Excise Act is exclusive — common-law refund claims are excluded; (ii) the doctrine of unjust enrichment applies — refund will not be granted where the assessee has passed on the burden to the ultimate consumer; (iii) the burden of proof on incidence-passing is on the claimant.

"Where the duty has been passed on to the buyer, the manufacturer is not entitled to refund. To do otherwise would be to enrich the manufacturer at the expense of the consumer — a course no principle of justice can support."

Relevance: Foundational unjust-enrichment authority that animates s. 54(8)(e) and the Consumer Welfare Fund mechanism. Decisive in every IGST refund claim including zero-rated/inverted-duty/excess-balance refunds.

Union of India v Filco Trade Centre Pvt Ltd — (2022) SCC OnLine SC 1156 [Supreme Court — 2-Judge Bench]

Brief Facts: Multiple High Courts had directed nationwide reopening of the GSTN portal for filing/revising TRAN-1 / TRAN-2 by taxpayers who had missed the original window. SC consolidated the appeals and considered whether Article 142 could be invoked to grant procedural relief beyond the statutory transitional-credit window under s. 140 of the CGST Act.

Issue: Whether a vested transitional CENVAT/ITC credit can be defeated by procedural deadlines, and whether the SC can direct a nationwide one-time portal reopening under Article 142.

HELD: Portal reopened nationwide for a 2-month window (1 Oct to 30 Nov 2022, later extended). The Court held that transitional credit is a vested right that cannot be defeated by mere procedural lapses, and Article 142 may be invoked to do complete justice where the procedural architecture has failed thousands of taxpayers.

"Article 142 confers a plenary power on this Court to do complete justice. Where a procedural failure of the administrative architecture has caused widespread denial of substantive rights, this Court can direct a one-time corrective dispensation."

Relevance: Authority for the vested-right doctrine in transitional credit; for the use of Article 142 to correct portal/architecture failures; and as the procedural template for any future SC-supervised GSTN remedial scheme.

All India Federation of Tax Practitioners v Union of India — (2007) 7 SCC 527 [Supreme Court — 3-Judge Bench]

Brief Facts: The constitutional validity of the service-tax levy on chartered accountants, cost accountants, and architects was challenged on the ground that these professions had been historically regulated by State legislation and were therefore outside Union legislative competence.

Issue: Constitutional foundation of the service-tax levy — whether 'service' can be taxed by the Union under the residuary entry (Entry 97 List I) and what is the doctrinal nature of a service-tax levy.

HELD: Service-tax upheld. The Court held that service-tax is a value-added tax on the value of services rendered, traceable to Entry 97 of List I until Entry 92C was inserted by the Constitution (88th Amendment). The economic concept of value addition through services is the doctrinal basis on which service-tax — and now GST on services — rests.

"Service-tax is a value-added tax on the commercial activity of providing services. The taxable event is the rendition of service and the levy attaches to the value addition at the point of service delivery."

Relevance: Constitutional anchor for taxation of services under GST — pre-101st-Amendment doctrinal framework that informs the place-of-supply concept under s. 12 and s. 13 of the IGST Act.

4. Circulars and Notifications

Notification No. 18/2017-Integrated Tax (Rate) dated 05.07.2017 — SEZ supplies exemption — alternative to LUT / IGST-paid routes

Exempts inter-State supplies to SEZ developer/unit by registered suppliers for authorised operations. Alternative route — supplier does not charge IGST + no LUT required + no IGST-paid + refund. Conditions: SEZ recipient must have authorised operations endorsement; supplier maintains documentary proof.

Rule 96A CGST Rules — Form GST RFD-11 LUT dated Effective from 01.07.2017 — LUT framework for export without IGST payment

Annual LUT in Form GST RFD-11. Eligibility: any registered person except those convicted of evasion ≥ Rs. 2.5 cr or with cases pending. Online filing via GST portal. Coverage: exports of goods/services + SEZ supplies. Validity: financial year; renewed annually before 1 April.

Rule 96 CGST Rules dated Effective from 01.07.2017 — Auto-refund mechanism for IGST-paid exports

IGST-paid exports — refund auto-processed by customs system based on Shipping Bill + GSTR-1 data match. Typical processing 30-60 days. Conditions: export proceeds realisation, matching Shipping Bill + invoice data, no Department block. FA 2021 sub-s. (4) framework will eventually tighten eligibility to notified classes.

Rule 89 CGST Rules dated Effective from 01.07.2017 — Refund procedure for LUT-route exports (unutilised ITC) + inverted-duty + others

Comprehensive refund procedure under s. 54 CGST. Rule 89(4) for zero-rated supplies — formula: (Turnover of Zero-Rated Supplies × Net ITC) / Adjusted Total Turnover. Rule 89(5) for inverted-duty (post VKC Footsteps validation). Form GST RFD-01 — application form. 60 days for acknowledgement; 90% provisional refund within 7 days for zero-rated.

Notification 41/2017-Integrated Tax (Rate) dated 23.10.2017 — Merchant exporter 0.1% concessional rate for inputs

0.1% IGST rate (vs standard 18%) on supply of goods by registered supplier to merchant exporter for export within 90 days. Merchant exporter then exports under LUT or IGST-paid; takes refund under Rule 89/96. Critical scheme for input-export chain optimisation.

FA 2021 amendments to s. 16 (s. 123 FA 2021) dated 28.03.2021 — Restrictions on IGST-paid route + non-realisation deposit + authorised-operations

Three amendments — (a) sub-s. (1)(b) restricted to 'for authorised operations'; (b) sub-s. (3) substituted with LUT-only default + non-realisation deposit proviso (30 days post FEMA timeline); (c) sub-s. (4) inserted for Government to notify IGST-paid classes. All amendments operate from date yet to be notified — pre-amendment framework continues till notification. Restricts IGST-paid route from automatic availability to notified-class availability — addressing fraud concerns.

Notification 16/2020-Central Tax dated 23.03.2020 — LUT renewal extended during COVID — operational continuity

Extended LUT validity during COVID disruption. Operational template for emergency operational relief. Reflects Government's recognition that LUT framework is critical for export operations continuity.

Circular No. 175/07/2022-GST dated 06.07.2022 — Clarification on zero-rated supplies + Rule 89(4B) refund formula

Operational clarification on refund formula application for zero-rated supplies. Adjusted Total Turnover excludes certain categories. Critical for refund-computation disputes under Rule 89(4).

5. Worked Examples

6. Practitioner Planning

• For every export client, decide LUT vs IGST-paid route (pre FA 2021 notification) based on ITC accumulation, cash-flow, refund cycle, FEMA realisation confidence.
• Pre FA 2021 notification, IGST-paid route available to all exporters; post-notification will be restricted to notified classes — plan transition.
• For SEZ supplies, choose between LUT (Rule 96A), IGST-paid (Rule 96), or Notif 18/2017-IT(R) exemption — model cash-flow + documentation infrastructure.
• For LUT clients, file Form GST RFD-11 annually before 1 April for the new financial year.
• For LUT-route refunds, maintain GSTR-1 + Shipping Bill + FIRC + LUT in chronological order; refund applications quarterly typical.
• For IGST-paid route, ensure GSTR-1 export reporting matches Shipping Bill data — Customs ICEGATE auto-refund depends on match.
• For merchant-exporter chains, exploit Notification 41/2017-IT(R) 0.1% rate — minimises working capital lock-up.
• For FEMA non-realisation, post FA 2021 notification — diarise 30-day deposit window from expiry of FEMA timeline; pre-notification monitor RBI / FEMA framework.
• For composite exports (goods + services bundle), apply principal-supply test; refund mechanism follows principal supply.
• For deemed exports under s. 147 CGST + Notif 48/2017-CT, separate refund mechanism under Rule 89 — different from s. 16 IGST framework.
• For SEZ developer/unit clients, ensure authorised-operations endorsement is current; affects all three routes.
• For exports to ACU / Nepal / Bhutan with INR receipts, exhibit RBI permission + s. 2(6)(iv) IGST Amendment Act 2018 framework.
• For inverted-duty refund (related but distinct from zero-rated), apply Rule 89(5) formula post VKC Footsteps validation.
• For Safari Retreats functionality-test argument, supplier-side ITC chain may benefit even where downstream supplies are zero-rated.
• Maintain master log of LUT renewal dates + refund-claim status per quarter + FEMA realisation tracking.

7. Litigation Defence

• VKC Footsteps defence — for inverted-duty refund disputes, exhibit statutory framework + judicial validation.
• Safari Retreats functionality-test defence — for upstream ITC denial affecting downstream zero-rated supply chain.
• Mohit Minerals defence — for any allegation that zero-rated supply nevertheless attracts hidden IGST (eg ocean freight RCM in import chain leading to export).
• Bharti Airtel finality defence — for retrospective zero-rated reclassification.
• Mafatlal unjust-enrichment defence — for export refund claims, generally not passed on (foreign customer doesn't reimburse Indian indirect tax).
• Vatika Township prospectivity — for FA 2021 amendments (effective from date yet to be notified), pre-notification supplies subject to pre-amendment framework.
• Filco Trade Article 142 backstop — for GSTN / ICEGATE architecture failures denying refund, equitable relief.
• AIFTP constitutional anchor — for any constitutional challenge to zero-rated framework.
• Maneka Gandhi audi alteram partem — for adverse refund denial without hearing.
• LUT-vs-IGST-paid election defence — exhibit consistent election + supporting documentation.
• FEMA non-realisation distinction — pre FA 2021 notification, no automatic deposit; demand based on assumed framework is premature.
• Authorised-operations defence under sub-s. (1)(b) — exhibit SEZ recipient's authorised operations endorsement; absence post FA 2021 notification = no zero-rating.
• Sub-s. (2) ITC-preservation defence — for s. 17(2) ITC reversal demand on zero-rated supplies, exhibit sub-s. (2) override.
• Rule 89 formula defence — for refund-amount disputes, exhibit formula application + Circular 175/2022 clarifications.
• Hierarchy-of-instruments defence — Rules / Notifications cannot narrow s. 16 substantive entitlement.
• Pre-deposit refund-non-realisation defence — for cases under FA 2021 framework, separation of refund + interest from underlying export-tax dispute.

8. Procedural Map — Zero-Rated Supply Compliance

Step 1. Classify supply as zero-rated

s. 16(1)(a) export or s. 16(1)(b) SEZ supply.

Step 2. For SEZ supplies post FA 2021 notification, confirm authorised operations

Recipient endorsement.

Step 3. Choose operational route

LUT (sub-s. 3) / IGST-paid (sub-s. 4 post FA 2021, currently available pre-notification) / Notif 18 (SEZ only).

Step 4. For LUT route, file Form GST RFD-11 annually

Before 1 April for new FY.

Step 5. For IGST-paid route, pay IGST + claim refund

Auto-refund via Rule 96 for goods exports.

Step 6. For SEZ Notif 18 route, maintain SEZ endorsement

Supplier copy of authorised operations.

Step 7. Issue invoice with appropriate route notation

Export under LUT / under bond / on payment of IGST.

Step 8. Generate Shipping Bill (goods) or document export (services)

Shipping Bill for goods; FIRC / payment-realisation evidence for services.

Step 9. Report in GSTR-1 export tables

Table 6A (B2B exports), 6B (SEZ).

Step 10. Report in GSTR-3B Table 3.1(b) zero-rated

Tax classification.

Step 11. For LUT route, file refund application under Rule 89

Form RFD-01 quarterly typical.

Step 12. For IGST-paid route, monitor auto-refund processing

30-60 days typical.

Step 13. For FEMA realisation, track 9-month deadline

Post FA 2021 notification — 30-day deposit if not realised.

Step 14. For composite exports + inverted-duty + multiple-route exporters, coordinate refund applications

Separate refund streams.

Step 15. Periodic review of FA 2021 notification status + Council updates

Subscribe to CBIC notifications.

CROSS-REFERENCES

• s. 1 IGST — Commencement.
• s. 2 IGST — Definitions (export of goods, export of services, SEZ, SEZ developer, zero-rated supply).
• s. 5 IGST — Charging section (zero-rated has NIL effective rate).
• s. 6 IGST — Inter-State exemption (alternative SEZ route via Notif 18).
• s. 7 IGST — Inter-State (s. 7(5)(a) exports + s. 7(5)(b) SEZ).
• s. 8 IGST — Intra-State (provisos exclude SEZ and exports).
• s. 11 IGST — POS for imports/exports.
• s. 13 IGST — POS for cross-border services.
• s. 15 IGST — Tourist refund (parallel framework).
• s. 17 IGST — Apportionment of IGST collected.
• s. 19 IGST — Wrongly-paid IGST refund.
• s. 20 IGST — Application of CGST provisions.
• s. 17(2) CGST — ITC reversal for exempt (overridden by s. 16(2) IGST for zero-rated).
• s. 17(5)(c)/(d) CGST — Blocked ITC on construction (s. 16(2) subject to this).
• s. 50 CGST — Interest under FA 2021 proviso for non-realisation deposit.
• s. 54 CGST — Refund mechanism for zero-rated.
• s. 147 CGST — Deemed exports (distinct from s. 16).
• Rule 89 CGST Rules — Refund procedure for LUT route + inverted duty.
• Rule 96 CGST Rules — Auto-refund for IGST-paid route.
• Rule 96A CGST Rules — LUT framework.
• Form GST RFD-11 — LUT.
• Form GST RFD-01 — Refund application.
• Notification 1/2017-Integrated Tax (Rate) — Goods rate.
• Notification 8/2017-Integrated Tax (Rate) — Services rate.
• Notification 18/2017-Integrated Tax (Rate) — SEZ exemption.
• Notification 41/2017-Integrated Tax (Rate) — Merchant exporter 0.1% rate.
• Notification 48/2017-Central Tax — Deemed exports.
• Finance Act 2021, s. 123 — Amendments to s. 16 (effective from notified date).
• FEMA 1999 + RBI Master Direction on Export of Goods/Services — Realisation framework.
• SEZ Act 2005 + Rules — Authorised operations.
• Foreign Trade Policy 2023 — Export framework.
• Customs Act + Customs Tariff Act — Shipping Bill + customs interface.
• VKC Footsteps (2022) — Inverted-duty refund validation.
• Safari Retreats (2024) — Construction ITC functionality test.
• Mafatlal (1997) — Unjust enrichment.
• Filco Trade (2022) — Article 142 backstop for portal failures.
• Circular No. 175/07/2022-GST — Refund formula clarification.