Functions of GST Audit Commissionerate

Functions of GST Audit Commissionerate in India

The functions of GST Audit Commissionerate include planning and conducting departmental GST audits, selecting taxpayers for audit based on risk parameters, examining GST returns and accounting records, verifying tax compliance, identifying discrepancies and coordinating follow-up action in accordance with the Goods and Services Tax framework.

The GST Audit Commissionerate is a specialised formation within the GST administration. It supports verification of self-assessed GST liabilities and compliance by registered taxpayers under the Central Goods and Services Tax Act, 2017 and related rules.

Its work involves Planning and Coordination, Administration, Technical and Legal support, Risk Management and Quality Assurance, Audit Circles, audit teams and Monitoring Committee Meetings.

This guide explains the role, organisational structure, responsibilities, powers and procedures of GST Audit Commissionerates in India, including departmental audit under Section 65, audit notices in FORM GST ADT-01 and audit findings communicated through FORM GST ADT-02.

EzyBiz India Consulting LLP assists businesses with departmental audit preparation, GST return reconciliations, audit documentation, explanations of audit observations and GST litigation support.

Received a GST departmental audit notice? Contact our Chartered Accountant-led team at +91 98992 17778, email anil@ezybizindia.in or WhatsApp our GST experts.

For professional support, visit our GST Audit Services in India or our main GST and Indirect Tax Advisory Services page.

GST Audit Commissionerate – Meaning and Overview

What Is a GST Audit Commissionerate?

A GST Audit Commissionerate is an administrative formation responsible for undertaking audit-related functions under the GST framework.

It operates through authorised officers and audit teams to examine compliance by registered taxpayers falling within its jurisdiction.

The organisation and internal working arrangements of Central GST Audit Commissionerates are described in departmental audit manuals and administrative instructions.

Objectives of GST Audit Commissionerates

The principal objectives include:

• Verification of GST self-assessment
• Identification of non-compliance and reporting discrepancies
• Verification of tax payment and eligible input tax credit
• Review of exemptions, classification and valuation
• Examination of GST refunds where relevant
• Encouragement of voluntary tax compliance
• Identification of systemic compliance risks
• Improvement of audit quality and consistency

Legal Basis of GST Departmental Audit

Section 65 of the CGST Act authorises the Commissioner or an officer authorised by the Commissioner to undertake audit of registered persons.

Rule 101 of the CGST Rules prescribes the related audit procedure.

Section 2(13) defines audit in the context of examination of records, returns and other documents to assess compliance and verify relevant tax particulars.

Refer to the CBIC Tax Information Portal for the applicable legislative provisions.

Organisational Structure of GST Audit Commissionerate

Commissioner and Senior Audit Officers

A Central GST Audit Commissionerate is generally headed by a Principal Commissioner or Commissioner of Audit, supported by senior officers and other authorised personnel.

The Commissionerate supervises audit planning, performance, coordination and follow-up in accordance with the applicable administrative framework.

Sections within the Audit Commissionerate

The organisational framework described in the CBIC GST Audit Manual includes:

• Planning and Coordination Section
• Administration, Personnel and Vigilance Section
• Technical and Legal functions
• Risk Management and Quality Assurance Section
• Audit Circles and Audit Groups

Actual organisational arrangements and designations may differ between formations and over time.

Audit Circles and Field-Level Organisation

Audit Circles undertake field-level audit work through teams of authorised officers and officials.

Their responsibilities include desk reviews, audit plans, verification of records, preparation of observations and follow-up on audit findings.

The Chennai GST Audit-I Commissionerate provides an official example of audit jurisdiction and organisational hierarchy.

Functions of Planning and Coordination Section

Planning and Scheduling GST Audits

The Planning and Coordination Section assists in preparation and implementation of audit programmes.

Its responsibilities may include scheduling audits, coordinating available resources, reviewing audit workloads and planning deployment of officers.

The objective is to ensure that audits are conducted systematically and within applicable administrative and statutory timelines.

Maintenance of Taxpayer Master Files

Audit formations may maintain taxpayer master files containing relevant registration particulars, business profiles, audit history and other available information.

These files support preliminary examination of taxpayer activities and identification of areas requiring closer verification.

They should be updated in coordination with audit teams and other relevant departmental formations.

Formation and Deployment of Audit Groups

The Planning and Coordination Section supports constitution of audit groups, allocation of work and matching of officers’ experience with the complexity of audit assignments.

It may also coordinate training requirements, audit schedules and information required for Monitoring Committee Meetings.

Functions of Administration, Personnel and Vigilance Section

Administrative and Personnel Management

The Administration Section manages internal personnel matters such as leave, postings, transfers, allowances and related administrative requirements, according to applicable departmental instructions.

These functions support the operational capacity of the Audit Commissionerate.

Budget and Resource Management

The section may assist with budgetary grants, office administration, resource allocation and other administrative arrangements.

Efficient administration helps audit teams undertake field verification and record examination.

Vigilance and Internal Administration

Vigilance-related functions include administrative support for matters concerning departmental conduct and compliance with applicable internal procedures.

These responsibilities are distinct from the statutory audit of registered taxpayers.

Functions of Technical and Legal Section

Technical Guidance on GST Audit Issues

The Technical Section supports interpretation of GST provisions and technical issues arising during audit.

Issues may involve classification, tax rates, valuation, input tax credit, exemptions, place of supply and other statutory questions.

Technical guidance should be consistent with the applicable legislation, notifications, circulars and binding judicial decisions.

Drafting and Review of Show Cause Notices

Where audit findings indicate possible short payment, non-payment or other statutory discrepancies, further action may require preparation or examination of show cause notice material.

The role of technical officers may include review of factual records, legal provisions and supporting evidence.

The actual issuance and adjudication of notices must follow the applicable statutory powers and authorised jurisdiction.

Legal Matters and Audit Follow-Up

Legal functions may involve supporting the department in litigation-related matters, interpreting disputed legal issues and coordinating information required for further proceedings.

Where a taxpayer disputes an audit observation or subsequent demand, specialist representation may be appropriate.

For businesses, our GST Assessment and Litigation Services cover assistance with notices, demands and appeals.

Functions of Risk Management and Quality Assurance Section

Risk-Based Selection of Taxpayers

Risk Management functions assist in identifying taxpayers for audit using appropriate risk parameters and available data.

Depending on applicable departmental procedures, factors may include return mismatches, business characteristics, compliance history, refunds and other relevant information.

Selection for audit does not by itself establish that the taxpayer has committed a GST default.

Analysis of GST Data and Third-Party Information

Audit risk assessment may draw upon GST return data, departmental information and relevant third-party sources.

Examples of potential review areas include:

• Differences between GSTR-1 and GSTR-3B
• Differences between GSTR-2B and ITC claimed
• Turnover discrepancies
• Unusual refund patterns
• Supplier-related compliance issues
• Classification or rate differences
• E-invoice and e-way bill inconsistencies

Quality Assurance and Performance Review

The Quality Assurance function supports consistent audit methodology, review of audit working papers, evaluation of audit performance and identification of improvements.

It may also coordinate risk-based selection methodologies and quality review procedures under relevant administrative instructions.

Functions of GST Audit Circles and Audit Teams

Conducting Actual GST Audits

Audit Circles and authorised audit teams examine taxpayers’ books, GST returns and supporting records.

Verification may be undertaken at the taxpayer’s place of business or at the office of the GST authorities, as permitted under Section 65.

Desk Review and Preparation of Audit Plan

Before conducting detailed verification, an audit team may examine available returns, financial information and previous departmental records.

The desk review assists in identifying specific areas requiring transaction-level verification.

Preparation of Audit Observations and Reports

Audit officers record their observations and evaluate supporting evidence collected during the audit.

Where discrepancies arise, the registered person may be asked to provide explanations.

Audit findings should be finalised after consideration of the taxpayer’s submissions in accordance with Rule 101.

Monitoring Committee Meetings in GST Audit

What Is a Monitoring Committee Meeting?

A Monitoring Committee Meeting, commonly referred to as MCM, is an internal departmental mechanism described in GST audit administrative procedures.

It supports review and monitoring of audit observations, reports and follow-up actions.

Review of Audit Objections

MCM procedures may involve examination of proposed audit objections, supporting documentation and the technical justification for audit findings.

The objective is to improve consistency and quality before appropriate follow-up action is pursued.

Coordination with Executive Commissionerates

Audit Commissionerates may coordinate with Executive Commissionerates regarding audit findings and proceedings requiring further action.

Internal MCM approval should not be confused with a final adjudicated tax demand against the taxpayer.

The taxpayer’s statutory rights and available remedies remain governed by GST legislation.

Selection of Taxpayers for GST Departmental Audit

Risk-Based Audit Selection

GST departmental audits are generally selected through relevant risk assessment and administrative processes.

Factors may include turnover patterns, tax payment behaviour, business activities and inconsistencies appearing in records.

Common GST Compliance Risk Indicators

Examples of matters that may warrant examination include:

• Significant differences between outward supply reporting and tax payments
• Large or unexplained ITC adjustments
• Recurring return discrepancies
• Incorrect classification or tax rates
• Unusual refund claims
• Mismatch between accounting turnover and GST returns
• Complex cross-border or intercompany transactions

These are illustrative risk areas, not a published exhaustive list or proof of wrongdoing.

Audit Selection Is Not a Tax Demand

A taxpayer selected for departmental audit should not assume that a tax demand has already been determined.

An audit is a verification process. Any subsequent demand proceedings must follow the relevant legal requirements.

GST Departmental Audit Process under Section 65

Issuance of GST ADT-01 Notice

Where an audit is undertaken under Section 65, the registered person must receive the prescribed prior notice.

Section 65(3) requires intimation at least 15 working days before the conduct of the audit.

The notice is issued in FORM GST ADT-01 under Rule 101.

Examination of Books and GST Returns

The authorised officer may examine relevant documents, including:

• Sales and purchase registers
• Financial statements
• GSTR-1 and GSTR-3B
• GSTR-2B and ITC records
• Tax invoices
• Electronic cash and credit ledgers
• Export and import documents
• Refund records
• Contracts and other supporting documentation

Communication of Audit Findings

After reviewing records and explanations, the department communicates the audit findings through the prescribed procedure.

FORM GST ADT-02 is used to communicate findings following a departmental audit.

For taxpayer preparation, see our GST Audit Checklist.

Areas Verified by GST Audit Officers

Turnover and Tax Liability Verification

Audit officers may compare GST turnover with accounting records, outward supply statements and financial statements.

The review may include advances, other income, branch supplies, exemptions, tax rates and adjustments affecting GST liability.

Input Tax Credit and Purchase Verification

Input tax credit claimed may be examined against purchase invoices, GSTR-2B, eligibility conditions, reversals and other relevant information.

Incorrect or unsupported ITC claims may be questioned during audit proceedings.

Refund, Export and Reverse Charge Verification

Audit teams may also examine the basis of refund claims, zero-rated supplies, export documentation, reverse-charge transactions and associated GST payments.

For businesses seeking assistance with refund applications, review our GST Refund Services in India.

GST Audit Notices and Forms

FORM GST ADT-01 – Departmental Audit Notice

ADT-01 communicates the departmental audit notice under Section 65 and Rule 101.

Businesses should examine the audit period, date, authority and documents requested.

FORM GST ADT-02 – Departmental Audit Findings

ADT-02 is used to communicate findings following completion of the departmental audit.

The registered person should review the findings and any subsequent statutory communication carefully.

FORM GST ADT-03 and ADT-04 – Special Audit

ADT-03 concerns directions for special audit under Section 66.

ADT-04 concerns communication of special audit findings under the prescribed procedure.

A special audit under Section 66 is distinct from the ordinary departmental audit under Section 65.

Time Limits and Powers under Section 65

Prior Notice of 15 Working Days

Section 65 requires the registered person to be informed at least 15 working days before the conduct of a departmental audit.

This requirement should be reviewed when evaluating the validity and procedural compliance of an audit notice.

Three-Month Audit Completion Period

Under Section 65(4), the audit is ordinarily required to be completed within three months from commencement.

The Commissioner may extend the audit by a further period not exceeding six months where the statutory conditions are satisfied and reasons are recorded.

Communication of Findings within 30 Days

Under Section 65(6), the proper officer must inform the registered person of the audit findings, rights and obligations, and reasons for the findings within 30 days from conclusion of the audit.

The statutory definition of commencement and the actual circumstances of the audit must be considered when calculating timelines.

Rights and Responsibilities of Taxpayers during Audit

Providing Books and Records

Under Section 65(5), the registered person is required to provide necessary facilities for verification of books and relevant documents and furnish information required for timely completion of the audit.

Requested records should be organised and supplied with appropriate explanations.

Responding to Audit Observations

Where discrepancies are communicated during the audit, the taxpayer should assess the observations and prepare a factual response.

Replies may include GST reconciliations, legal submissions, invoices, ledgers, contracts and other supporting evidence.

Maintaining an Audit Trail

Businesses should maintain records of:

• ADT-01 and other audit communications
• Documents submitted to the department
• Reconciliation statements
• Explanations provided
• Meetings and submissions
• Audit findings
• Any subsequent statutory notices or orders

A documented audit trail can support future explanations and legal proceedings.

GST Audit Findings and Subsequent Proceedings

Audit Observations versus Final Tax Demands

Audit observations represent findings or issues identified during verification.

They should not automatically be treated as final adjudicated tax demands.

Any further proceedings must follow the relevant GST statutory framework.

Proceedings under Sections 73, 74 and 74A

Where audit findings indicate tax not paid or short paid, erroneous refunds or wrongly availed or utilised input tax credit, proceedings may arise under the applicable demand provisions.

Sections 73 and 74 generally concern the earlier statutory framework, while Section 74A applies to the relevant later financial years in accordance with the applicable legislation.

The correct provision depends on the tax period and circumstances.

GST Appeals and Litigation Support

Where an adverse adjudication order is issued, the registered person should review the statutory appeal remedy, limitation period, pre-deposit and supporting records.

Our GST Assessment and Litigation Services assist businesses with GST notices, demand proceedings and appeals.

GST Audit Preparation and Professional Assistance

Pre-Audit Reconciliation and Review

EzyBiz India Consulting LLP assists businesses with preparing for departmental audit by reviewing relevant books, GST returns, input tax credit, turnover and tax payments.

Our approach includes identifying material discrepancies and preparing explanations supported by documentary evidence.

Support for ADT-01 Notices

We assist taxpayers with reviewing ADT-01 notices, identifying applicable financial years, preparing document checklists and organising requested records.

For a detailed practical checklist, see our GST Audit Checklist 2026.

GST Audit Representation and Compliance Services

Our Chartered Accountant-led team provides support with departmental audit observations, return reconciliation, submissions and related tax advisory matters within the agreed scope.

Businesses requiring recurring compliance support can also explore our GST Return Filing Services in India.

Frequently Asked Questions on GST Audit Commissionerate

What Is the Main Function of GST Audit Commissionerate?

The main function is to administer and conduct GST audit-related activities, including audit selection, planning, verification, review of records, reporting of observations and coordination of follow-up action.

Can GST Audit Commissionerate Issue an Audit Notice?

Yes. Where the conditions under Section 65 and Rule 101 are satisfied, the authorised proper officer may issue FORM GST ADT-01 for departmental audit.

Is GST Audit Mandatory for Every Company?

No. The earlier compulsory turnover-based audit by a Chartered Accountant or Cost Accountant under Section 35(5) was discontinued.

However, registered taxpayers may be selected for departmental audit under Section 65. Special audit under Section 66 remains applicable in prescribed circumstances.

Does the GST Audit Commissionerate itself decide every final tax demand?

No. Audit, issuance of show cause notices and adjudication are distinct functions governed by statutory authorisation and jurisdiction.

What should a taxpayer do after receiving ADT-01?

Review the audit notice and period, reconcile books and GST returns, prepare the requested documents and arrange appropriate responses to departmental queries.

Can audit findings be disputed?

Yes. Taxpayers may provide explanations and supporting evidence during audit. Any subsequent statutory demand or order should be examined for the applicable remedies and limitations.

Contact EzyBiz India Consulting LLP

Mobile: +91 98992 17778

Email: anil@ezybizindia.in

WhatsApp: Contact Our GST Audit Team

Related Services and Supporting GST Guides

• GST and Indirect Tax Advisory Services – Main Pillar
• GST Audit Services in India
• GST Audit Checklist 2026
• Can a Statutory Auditor Conduct GST Audit?
• GST Assessment and Litigation Services
• GST Return Filing Services
• GST Refund Services
• GST Registration Services
• Accounts and Records under GST
• E-Way Bill under GST
• Accounting and Bookkeeping Services
• Tax and Regulatory Advisory Services

Official GST and Regulatory References

• GST Portal – Government of India
• CBIC Tax Information Portal – CGST Act
• CBIC – GST Assessment and Audit Rules
• Model All India GST Audit Manual
• Chennai GST Audit-I Commissionerate – Organisation and Jurisdiction
• CGST Mumbai Zone – Functions of Audit Commissionerates
• GST Council
• India Code – Indian Legislation

Contact EzyBiz India Consulting LLP

306, 3rd Floor, Vishwa Sadan Building, District Centre, Janakpuri, New Delhi – 110058, India.

Mobile: +91 98992 17778

Email: anil@ezybizindia.in

WhatsApp: Speak with Our GST Experts

Reviewed By: CA Anil Agrawal, Founder, EzyBiz India Consulting LLP.

Last Updated: October 2026.

Disclaimer: This article explains the general functions, responsibilities and procedures of GST Audit Commissionerates in India for informational purposes only. Internal departmental organisation may vary between jurisdictions and may change through administrative instructions. The statutory powers of officers, audit procedures, notices, timelines, demand proceedings and available taxpayer remedies depend on the relevant GST legislation, rules and facts. Historical audit manuals should be read together with current laws and notifications. The information does not constitute transaction-specific tax or legal advice. Businesses should verify applicable statutory provisions and seek professional advice before acting.