GST Audit Support in Padi Industrial Estate, Chennai

Sub-section (1) of Section 65 of the Central Goods and Services Tax Act empowers the Commissioner, or any officer authorised by him through a general or specific order, to undertake audit of any registered person for such period, frequency and manner as may be prescribed. Sub-section (2) provides that the audit may be conducted either at the place of business of the registered person or at the office of the proper officer. It is to be noted that this provision is the substantive source of departmental audit jurisdiction and is read with Rule 101 for procedural mechanics.

Sub-section (1) of Section 66 provides that if at any stage of scrutiny, inquiry, investigation or any other proceedings, the officer not below the rank of Assistant Commissioner, having regard to the nature and complexity of the case and the interest of revenue, is of the opinion that the value has not been correctly declared or the credit availed is not within the normal limits, he may, with prior approval of the Commissioner, direct the registered person to get the records including books of account examined and audited by a chartered accountant or a cost accountant nominated by the Commissioner.

Sub-rule (1) of Rule 101 provides that the period of audit shall be a financial year or part thereof or multiples thereof. Sub-rule (2) prescribes Form GST ADT-01 for the audit notice. Sub-rule (4) directs the proper officer, on conclusion of audit, to record the audit observations in his audit notes and to inform the registered person of the discrepancies, who may file his reply. Sub-rule (5) prescribes Form GST ADT-02 for communication of audit findings.

Sub-section (7) of Section 65 provides that where the audit results in detection of tax not paid or short paid, erroneously refunded, or input tax credit wrongly availed or utilised, the proper officer may initiate action under Section 73 or Section 74. It is to be noted that this sub-section is the statutory bridge between the audit conclusion and adjudication proceedings.

Sub-section (6) of Section 65 requires the proper officer, on conclusion of audit, to inform the registered person within thirty days of the findings, the registered person's rights and obligations, and the reasons for such findings. The communication is issued in Form GST ADT-02. It is to be noted that the thirty-day window is mandatory and starts on the date of conclusion of audit, not the date of the audit report.

Sub-section (5) of Section 65 obliges the registered person to afford the necessary facility to verify the books of account or other documents as may be required, and to furnish such information as may be required and render assistance for timely completion of the audit. It is to be noted that non-cooperation under this sub-section can lead the proper officer to invoke best-judgment assessment under Section 62 or escalate to special audit under Section 66.

What is a GST audit and where does it sit in the compliance architecture

Statutory framework under Chapter XIII of the CGST Act

The audit framework under the Central Goods and Services Tax Act 2017 is contained in Chapter XIII, comprising Sections 65, 66 and 71. Section 65 provides for departmental audit, Section 66 for special audit by a Chartered Accountant or Cost Accountant nominated by the Commissioner, and Section 71 for access to business premises by an authorised officer. The Empowered Committee 2009 First Discussion Paper had envisaged audit as the principal verification layer in a self-assessment regime, replacing the pre-GST pattern of routine assessment under the VAT/CST framework. The architecture is risk-based: not every registered person is audited; selection is driven by Section 65(2) read with internal CBIC risk-management directions which factor in turnover scale, sectoral risk profile, prior compliance history and reconciliation gaps surfaced in GSTR-9C self-certification. The audit-process closure under Section 65(7) feeds either into a no-objection certificate, a voluntary DRC-03 payment, or an SCN under Section 73 or Section 74 depending on whether tax has been short-paid, short-collected or wrongly availed as ITC.

Audit versus assessment versus inspection

Audit under Section 65 or 66 is conceptually distinct from assessment under Sections 61 (scrutiny of returns) and 62 (best-judgement assessment of non-filers) and from inspection / search / seizure under Section 67. Scrutiny under Section 61 is a desk-review of returns by the proper officer who issues ASMT-10 on discrepancies; the registered person responds in ASMT-11; closure or escalation follows. Audit is broader — Section 65(5) permits examination of the books, returns, statements, declarations and other documents to verify correctness of turnover declared, taxes paid, refund claimed and ITC availed, plus assessment of compliance with the Act. Inspection under Section 67 is targeted enforcement upon reason-to-believe of tax evasion and is invasive — premises access, seizure of records and goods. The OECD Forum on Tax Administration's compliance-pyramid model recommends graduated escalation from desk review to field audit to inspection, and the Indian framework broadly mirrors that design.

Self-certification under GSTR-9C and its audit interplay

Until Finance Act 2021 amendments, Section 35(5) had required certification of GSTR-9C by a Chartered Accountant or Cost Accountant for registered persons whose aggregate turnover exceeded the prescribed threshold. The Finance Act 2021 substituted Section 35(5) and amended Section 44, shifting GSTR-9C to a self-certified reconciliation statement filed by the registered person without third-party attestation, effective FY 2020-21 onwards (Notification 29/2021-CT). The reconciliation in GSTR-9C between audited financial statements and GSTR-9 annual return is now an internal-control disclosure; it does not substitute for departmental audit under Section 65. Audit teams treat GSTR-9C self-certified reconciliations as primary working papers — Table 5 (turnover reconciliation), Table 9 (tax payable reconciliation) and Table 12-14 (ITC reconciliation) become the starting points of Section 65 audit interrogation.

Section 67 inspection and its relation to audit

Comparative framework — pre-GST excise / service tax and current GST

Pre-GST, the Central Excise Act Section 14 provided summons power, Section 18 search power, and Section 12F seizure power. Service tax under the Finance Act 1994 had similar provisions under Sections 82 (search) and 73 (recovery). The GST framework consolidates these into Section 67 with unified procedural architecture. The Empowered Committee 2009 First Discussion Paper had envisaged a single-window enforcement architecture replacing the fragmented pre-GST regime; Section 67 substantively delivers that design. Comparative OECD International VAT/GST Guidelines emphasise that enforcement powers should be calibrated to the gravity of the suspected evasion, and the Indian framework's reason-to-believe-plus-Joint-Commissioner-rank gating mechanism aligns with that principle.

Section 67 framework and reason-to-believe trigger

Section 67 of the CGST Act empowers the proper officer not below the rank of Joint Commissioner, upon reasons to believe recorded in writing, to inspect any place of business of a taxable person or any other person engaged in the business of transporting goods or owner or operator of a warehouse or godown, and to search and seize goods, documents, books and things. The Section 67 power is enforcement-oriented, triggered by suspicion of tax evasion (suppression of supply, claim of ITC in excess of entitlement, contravention of Act or rules), and is distinct from the verification-oriented Section 65 audit. The audit-to-inspection escalation occurs where Section 65 audit finds material gravity that the proper officer reads as warranting enforcement action under Section 67.

Audit-to-inspection escalation patterns

In practice, Section 65 audit findings escalate to Section 67 inspection where the audit team identifies indicators of deliberate evasion — fake invoicing patterns, circular trading rings, ITC claimed against suppliers whose registrations are cancelled or who have nil GSTR-3B filings (Suncraft Energy and downstream judicial line), classification mis-applications that appear deliberate. The escalation is not automatic; the proper officer must form a fresh reason-to-believe under Section 67(1) and record reasons. The Pradeep Goyal (Supreme Court on DIN — Document Identification Number for tax notices) framework requires the inspection authorisation to bear a valid DIN, failing which the action is voidable. The GKN Driveshafts (India) v ITO principle on opportunity-of-being-heard before invasive action is occasionally invoked but its application in the Section 67 context is restricted.

Audit-to-DRC-01 escalation

Limitation analysis post audit

Section 73(10) provides that the order under Section 73 shall be issued within three years from the due date for furnishing of annual return for the financial year to which the tax not paid or short paid or input tax credit wrongly availed relates; the SCN must be issued at least three months before that date (Section 73(2)). Section 74(10) provides corresponding five-year limitation. For FY 2017-18 GSTR-9 (annual return due 31 December 2018, extended dates apply), the Section 73 limitation expired in late 2021-22 (extended through various Notifications including 9/2023-CT to 31 December 2023 and further), and Section 74 limitation extends to mid-2024 onwards. Audit findings escalated beyond limitation are barred; the registered person should systematically test limitation as part of the SCN defence.

Appellate framework — Section 107 first appeal and beyond

Where the Section 73 or 74 adjudication order under DRC-07 is adverse, the registered person's first appeal lies under Section 107 of the CGST Act before the Joint or Additional Commissioner (Appeals) within three months from the date of communication of the order, extendable by one month for sufficient cause. Pre-deposit of 10% of the disputed tax amount under Section 107(6) is the gateway requirement. Second appeal lies under Section 112 before the GST Appellate Tribunal (now operational with Principal Bench at New Delhi and State / Area Benches notified); the Section 112 pre-deposit is an additional 20% (cumulative 30%). Beyond the Tribunal, appeal lies to the High Court under Section 117 on questions of law, and to the Supreme Court under Section 118. Writ remedy under Article 226 of the Constitution before the Madras High Court is available for jurisdictional infirmities at any stage.

Section 73 versus Section 74 framing post-audit

Where audit findings are not addressed through voluntary DRC-03 payment, the proper officer issues a Show Cause Notice — DRC-01 under Section 73(1) for cases not involving fraud, wilful misstatement or suppression, and under Section 74(1) for cases involving any of those elements. The framing choice has material consequences. Section 73 attracts penalty of 10% of tax or ₹10,000 whichever is higher (Section 73(9)), with no penalty if voluntary payment is made within thirty days of SCN under Section 73(8). Section 74 attracts penalty of 100% of tax (Section 74(9)), with reduced penalty of 25% if voluntary payment is made within thirty days of SCN under Section 74(8) and 50% within thirty days of order. The extended-period limitation of five years (versus three years under Section 73) is the other material difference.

Common audit findings

Reverse-charge under Sections 9(3) and 9(4) — self-invoice gaps

The second-most-common audit finding is missed reverse-charge — supplies where the recipient is liable to pay tax under Section 9(3) (notified categories — GTA without forward-charge election, legal services, sponsorship, services by directors, etc.) or Section 9(4) (supplies from unregistered to registered persons in notified categories for real-estate developers under Notification 07/2019-CT(R) read with 03/2019-CT(R)). Section 31(3)(f) requires the recipient to issue a self-invoice; many registered persons miss this step. The audit-team computes the missed output liability under reverse-charge, the corresponding ITC eligibility (subject to time-limit under Section 16(4)), and the interest under Section 50. Voluntary disclosure via DRC-03 is the standard close-out.

Classification and rate-of-tax disputes

The third-recurrent audit finding is classification and rate-of-tax. The GST rate structure across the rate notifications (Notification 01/2017-CT(R) and amendments, Notification 11/2017-CT(R) for services) contains thousands of HSN-and-SAC line items with rates from nil to 28%; classification borderlines are inherent. Audit-team challenges typically focus on: dual-rate items (5%/12%/18% pharmaceutical formulations, footwear, restaurants), composite versus mixed supplies under Section 8 (where the principal-supply classification determines the rate), and works-contract versus pure services classification. The Section 97 Advance Ruling mechanism offers a forward-looking certainty path; for historical classifications, the response is to cite the CBIC circulars (e.g. Circular 164/20/2021-GST on services classification clarifications) and contemporaneous trade-practice evidence.

Place-of-supply errors and IGST versus CGST/SGST

Place-of-supply errors are the fourth common finding — typically where the registered person charged CGST/SGST (intra-State) when the place of supply under Sections 10 to 13 IGST Act was inter-State (requiring IGST), or vice versa. Section 77 of the CGST Act provides a corrective mechanism — where tax was paid under one head but is actually payable under another, the wrongly-paid tax can be claimed as refund and the correctly-payable tax should be paid; the registered person is not penalised, only interest under Section 50 may apply. Audit teams sometimes overlook Section 77 and compute full short-payment additions; citing Section 77 with documented evidence of the corresponding refund-eligible head closes the issue at audit stage.

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