Expert Guide
A complete walkthrough — Gst Audit Support
Localised for Mannady, Chennai — where high-volume B2B traders operate with daily-truck inward and outward movement and significant GSTR-2B reconciliation pressure.
Reading this guide locally — Mannady businesses operate where around the Mannady Market catchment of Mannady, and Mannady businesses in the wholesale arm find that high-volume wholesalers face GSTR-2B ITC mismatch notices ASMT-10 turnover variance enquiries and frequent e-way bill exceptions.
What is a GST audit and where does it sit in the compliance architecture
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.
Comparative framework — VAT/CST audits versus GST audit
Pre-GST, the VAT regime in Tamil Nadu (Tamil Nadu VAT Act 2006) had an audit framework under Section 64 with mandatory CA audit certificates for dealers above prescribed turnover, and the Central Sales Tax framework had limited audit coverage focused on inter-State transactions. The GST framework consolidates and rationalises this — a single audit under Section 65 covers central, State and integrated tax dimensions; the cooperative-federal architecture under Article 246A and 279A means the audit can be conducted by either the central or State authority but not both (Section 6 cross-empowerment). The OECD International VAT/GST Guidelines emphasise audit-efficiency through risk-based selection and digital data analytics, both of which the Indian framework has incorporated through GSTN-driven analytics and the GSTR-9C self-certification feed.
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.
Post-audit options
SCN response and contested adjudication
Where one or more ADT-02 findings are disputed, the registered person prepares for the SCN under Section 73 or Section 74. The SCN response should be filed within thirty days of receipt of DRC-01; extensions are available under Section 73(8) or 74(8). The response should address each allegation with: (i) the factual position; (ii) the legal position with cited provisions and circulars; (iii) cited case law (Goetze, Bharti Airtel, Suncraft Energy, Aap and Co, GKN Driveshafts, Kranti Associates, Pradeep Goyal, Tapas Dutta — only where load-bearing); (iv) the quantum-mitigation argument (Section 73 versus Section 74 framing, limitation, computational errors). The personal-hearing under Section 75(4) is the consolidation step. The DRC-07 order then issues; first appeal under Section 107 follows for adverse outcomes.
Writ remedy before the Madras High Court
Where the ADT-02 findings, the SCN under Section 73/74, or the DRC-07 adjudication order suffers from jurisdictional infirmity — absence of Commissioner approval for Section 66 special audit, breach of Section 65(4) audit-completion timeline, denial of Section 75(4) opportunity of hearing, absence of Section 75(6) reasoned order, absence of DIN under Pradeep Goyal, breach of natural justice under audi alteram partem — the registered person can file a writ petition under Article 226 of the Constitution before the Madras High Court. The Aap and Co v UoI (Gujarat HC) and Asahi India Glass v UoI (P&H HC) line of authority offers guidance on writ entertainability in tax matters. The writ remedy is extraordinary and reserved for jurisdictional questions, not for merit-based challenges which belong in the statutory appellate hierarchy.
Settlement under Section 84 and amnesty schemes
Section 84 of the CGST Act provides for the continuance and validation of certain recovery proceedings; it does not provide a formal settlement scheme akin to the income-tax Settlement Commission framework which existed pre Finance Act 2021. However, the GST Council has periodically recommended amnesty schemes for specific compliance categories — Notification 03/2023-CT and the surrounding family of notifications on late-fee waiver, the GSTR-9 late-fee amnesty, the registration-revocation amnesty under Notification 03/2023-CT, and the periodic Sabka Vishwas (Legacy Dispute Resolution) Scheme equivalent for legacy excise / service tax cases. The registered person facing an adverse audit closure should monitor GST Council recommendations (47th Chandigarh, 50th, 53rd and subsequent meetings) for amnesty windows that may offer settlement at reduced penalty quantum. The OECD Forum on Tax Administration recognises amnesty-and-voluntary-disclosure programmes as compliance-architecture tools.
Section 65 departmental audit framework
Initiation under Section 65(1) and ADT-01 intimation
Section 65(1) of the CGST Act empowers the Commissioner, or any officer authorised by general or specific order, to undertake audit of any registered person for such period, at such frequency and in such manner as may be prescribed. Rule 101(2) of the CGST Rules read with Section 65(3) requires that the registered person be given not less than fifteen working days prior notice of audit through Form GST ADT-01. The ADT-01 intimation specifies the period proposed to be audited (typically one financial year, occasionally a longer span) and the documents to be made available — books of account, invoices, declarations, returns, GSTR-9C reconciliation statement, internal-audit reports if any. The fifteen-day window is the registered person's opportunity to gather records and seek extension on documented grounds; Rule 101(3) implicitly contemplates such extensions where genuinely warranted.
Audit period and frequency under Section 65(2)
Section 65(2) provides that the audit shall be conducted at the place of business of the registered person or in the office of the proper officer. The period covered is generally one financial year; multi-year audits are permissible where risk parameters warrant. Rule 101(1) limits the audit to a financial year unless the Commissioner specifically directs otherwise. The frequency of audit selection is risk-driven — the CBIC's Audit Manual (2019, periodically updated) directs Commissionerates to combine GSTN risk-engine outputs with sectoral profiles and prior-audit findings. Persons whose aggregate turnover crosses prescribed risk thresholds, or who have triggered specific red flags (large refund claims, sharp ITC growth versus output growth, GSTR-2A versus GSTR-3B mismatches), are prioritised. The GST Council 47th Chandigarh meeting (June 2022) had recommended a more nuanced risk-based selection to reduce small-taxpayer compliance burden.
Audit completion timeline under Section 65(4)
Section 65(4) requires that the audit under Section 65 shall be completed within three months from the date of commencement of audit. The Commissioner is empowered to extend this period by a further six months for reasons recorded in writing; the maximum total audit-cycle is therefore nine months from commencement. 'Commencement of audit' is defined in the Explanation to Section 65(4) as the date on which records and documents called for by the tax authorities are made available by the registered person, or the actual institution of audit at the place of business, whichever is later. This definition is significant for the registered person — timely document submission tightens the audit timeline and prevents prolonged uncertainty; the OECD Forum on Tax Administration best-practice benchmarks similarly emphasise audit-cycle time as a taxpayer-rights consideration.
Section 66 special audit by CA / CMA
Comparative framework — special audit in income tax and GST
The income-tax framework has a parallel under Section 142(2A) of the Income Tax Act 1961 — special audit can be directed where the Assessing Officer, having regard to the nature and complexity of the accounts, the volume of accounts, doubts about the correctness of the accounts, multiplicity of transactions in the accounts or specialised nature of business activity, is of the opinion that it is necessary in the interests of revenue. Pre-GST excise had Section 14A; service tax had Section 72A. The architectural unity across these provisions is that special audit is a complexity-triggered intervention requiring a substantive opinion plus a procedural safeguard. The OECD Forum on Tax Administration documents a similar 'specialist audit' tier in several mature tax jurisdictions, reserved for complex high-revenue cases.
Trigger conditions under Section 66(1)
Section 66(1) of the CGST Act provides that if at any stage of scrutiny, inquiry, investigation or any other proceedings, any 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 the prior approval of the Commissioner, direct such registered person by communication in writing to get his records including books of account examined and audited by a Chartered Accountant or a Cost Accountant as may be nominated by the Commissioner. The trigger requires both a substantive opinion (value mis-declaration or abnormal credit) and a procedural pre-condition (Commissioner's prior approval); the registered person can challenge either limb in a Section 75 representation.
Procedural sequence under Section 66(2) to 66(5)
Once the Section 66(1) opinion is formed and Commissioner's approval obtained, Section 66(2) requires the nominated Chartered Accountant or Cost Accountant to submit a report duly signed and certified, in such form as prescribed (Form ADT-04), within ninety days; this period can be extended by a further ninety days on application by the registered person or the CA/CMA, with the Commissioner's permission. Section 66(3) requires that the registered person be given an opportunity of being heard in respect of any material gathered on the basis of the special audit and proposed to be used in any proceeding against him. Section 66(4) clarifies that the expenses of the examination and audit, including remuneration of the CA/CMA, shall be determined and paid by the Commissioner. Section 66(5) preserves the proper officer's power to take further proceedings (SCN under Section 73 / 74) on the basis of the special audit findings.
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