GST Audit
Introduction
The Goods and Services Tax (GST) is a landmark reform in India’s indirect taxation system. The Goods and Services Tax (GST) regime in India mandates certain businesses to undergo a GST Audit to ensure compliance with tax laws. A GST Audit is the process of examining records, returns, and other documents maintained by a registered taxpayer under the Goods and Services Tax (GST) regime. The primary objective is to verify the correctness of turnover declared, taxes paid, refunds claimed, and input tax credit availed, ensuring compliance with GST provisions
As businesses grow and transaction volumes rise, ensuring compliance, transparency, and accuracy in GST returns becomes vital. A GST Audit, when applicable or voluntarily undertaken, helps ensure that a business’s GST reporting aligns with the provisions of the GST law.
What is a GST Audit?
A GST Audit is an examination of taxpayer’s books of accounts, records, returns, tax payments and other documents maintained by a taxpayer to verify the accuracy of turnover, taxes paid, refund claimed, and input tax credit availed.
- GST Audit verifies the compliance to ensure that:
- GST liability has been correctly discharged
- Declared turnover matches the books of accounts.
- Input Tax Credit (ITC) has been properly availed
- Refunds claimed are justified.
- All transactions are accurately recorded and disclosed
- It helps in identifying discrepancies, non-compliance, and potential tax exposures before they become subject to departmental scrutiny.
- The audit is conducted under Section 35 and Section 44 of the CGST Act, 2017, and the findings are reported in Form GSTR-9C.
Types of GST Audits
Type of Audit | Conducted By | Periodicity |
Departmental Audit (Section 65) | GST authorities | By order or instruction from the Commissioner |
Special Audit (Section 66) | Chartered Accountant / Cost Accountant nominated by Commissioner | Ordered by department in complex / large cases |
Turnover-based Audit | Chartered Accountant or Cost Accountant appointed by taxpayer | Ø Removed from FY 2021-22 onwards (previously for turnover > ₹2 crore) Ø Earlier requires submission of GSTR-9C (Reconciliation Statement + Certification) |
Previously, businesses with an annual turnover exceeding ₹2 crore were required to get their accounts audited by a Chartered Accountant or Cost Accountant under Section 35(5) of the CGST Act. However, this requirement was removed from 1st August 2021. Now, taxpayers with turnover above ₹5 crore must submit a self-certified Form GSTR-9C along with their annual return (GSTR9)
Turnover (in FY) | Compliance Requirement |
Up to ₹2 crore | GSTR-9 optional |
₹2 crore to ₹5 crore | GSTR-9 mandatory; GSTR-9C optional |
Above ₹5 crore | GSTR-9 and GSTR-9C both mandatory (self-certified) |
Businesses are still advised to get a professional GST audit done to ensure error-free compliance, even if not mandatory.
Importance of GST Audit
A GST audit helps in :
- Ensuring correct GST classification and rate application
- Detecting mismatches in sales, ITC, and liability
- Verifying vendor compliance and eligibility of ITC
- Avoiding interest, penalties, and departmental notices
- Improving internal controls and tax reporting accuracy
Coverage of GST Audit
A typical GST audit and reconciliation services, includes :
Service Area | Coverage |
GST Return Review | Examination of GSTR-1, GSTR-3B, GSTR-9, GSTR-2A/2B |
Amendment of Returns | where discrepancies are detected between returns |
Books vs Returns Reconciliation | Match turnover and tax from books to returns |
Input Tax Credit Verification | Check vendor-wise ITC, block credit, and reversals |
Reverse Charge Analysis | Identify applicability, accounting, and compliance |
HSN/SAC Code Verification | Ensure correct classification and tax rate usage |
Invoice Compliance | Ensuring invoices meet GST rules and formats |
Interest and Penalties | Any excess ITC or tax shortfall may attract interest @ 18% and penalties |
GSTR-9C Preparation | Prepare and certify reconciliation statement (if applicable) |
Documentation & Working Papers | Maintain audit trail, backup, and reconciliations |
Advisory & Rectifications | Recommend corrections, disclosure, and improvement in compliance |
GST Audit Process – Step by Step
Step 1: Appointment of Auditor
Engage a Chartered Accountant (CA) or Cost Accountant to conduct the audit.
Step 2: Understanding the Business
Understand the nature of supplies, business model, registration structure
Step 3: Data Collection
Gather books of Accounts, GST returns, reconciliations, invoices, credit/debit notes, etc.
Step 4: Verification of Records
The auditor shall check :
- Sales & Purchase registers
- GSTR-1, GSTR-3B, GSTR-9 filings
- ITC claims and reversals
- Tax payment records
Step 5: Reconciliation and Verification
- Reconcile books with GSTR-1, GSTR-3B, and GSTR-2A/2B
- Compare financial statements with audited books.
- Verify rate application, ITC utilization, and vendor compliance
- Identify and rectify discrepancies.
Step 6: Reporting and Recommendations
- Submit reconciliation report with summary of discrepancies and suggestions
- Preparation of Audit Report (GSTR-9C)
- Part A: Reconciliation statement (Turnover, Tax paid, ITC).
- Part B: Certification by the CA/Cost Accountant.
- Submit GSTR-9 (Annual Return) and GSTR-9C (Audit Report) by 31st December of the next financial year
Step 7: Follow-Up and Filing Support
Assist with corrections in future returns or representations, if required
Departmental GST Audit: Step-by-Step Process
The departmental GST audit is governed by Section 65 of the CGST Act and follows a structured process:
Intimation of Audit
The taxpayer receives a notice in Form GST ADT-01 at least 15 working days before the audit.
Commencement of Audit
The audit may be conducted at the taxpayer’s place of business or at the tax office.
Verification of Records
Officers examine:
- Turnover
- Exemptions/deductions claimed
- GST rates applied
- Input Tax Credit (ITC) availed/utilized
- Refund claims
- Reverse Charge Mechanism (RCM)
- Payment after 180 days to suppliers
- Other compliance aspects
Communication of Findings
Any discrepancies are communicated to the taxpayer, who can submit explanations or clarifications.
Completion of Audit
The findings are finalized after considering the taxpayer’s response. The outcome is communicated via Form GST ADT-02 within 30 days of concluding the audit.
Post-Audit Actions
- If no discrepancies are found, or if explanations are satisfactory, the matter is closed.
- If issues remain, a show cause notice may be issued for recovery of unpaid taxes, wrong refunds, or ineligible ITC
Special Audit under GST
A Special Audit can be ordered by the Deputy/Assistant Commissioner (with Commissioner’s approval) if complexity or nature of the case demands detailed scrutiny. This audit is conducted by a Chartered Accountant or Cost Accountant nominated by the Commissioner. Findings are communicated in Form GST ADT-04, and the taxpayer is given an opportunity to be heard
Key Areas Where Errors Commonly Occur
🚩 Mismatch between turnover in GSTR-1/GSTR-3B and books
🚩 Excess or ineligible ITC claimed
🚩 Delay in payment of GST/interest
🚩 Errors in place of supply or interstate vs intrastate treatment
🚩 Omission of RCM liability or incorrect GST rate usage
🚩 Lack of documentation to support input claims
💡 Our audit identifies such red flags proactively to avoid future scrutiny.
Documentation Required for GST Audit
Auditors and taxpayers should maintain and produce:
- Books of accounts (Ledgers, Balance Sheet, P&L Statement)
- GST returns (GSTR-1, GSTR-3B, GSTR-9, GSTR-9C)
- Invoices and supporting documents (Sales & Purchase)
- ITC registers
- ITC Reversal Documents (if any)
- Bank statements
- E-way Bills (if applicable)
- E-Invoicing Details (If applicable)
- Reconciliation statements
Role of a Chartered Accountant (CA) in GST Audit
A CA plays a crucial role in:
- Ensuring compliance with GST laws.
- Reconciling financial data with GST returns.
- Identifying errors and suggesting corrective actions.
- Preparing & certifying GSTR-9C.
- Representing the taxpayer in case of departmental audits.
- Technology-Driven Reconciliations using Excel & automation tools
- Comprehensive Documentation & Reports
- Post-Audit Support including rectification & departmental replies
- Client-Centric Advisory to improve compliance structure
Conclusion
A GST Audit is not just a compliance formality—it is a proactive risk management tool. A GST Audit ensures transparency and compliance under the GST regime. For businesses, timely preparation and professional guidance from Chartered Accountants can make GST audits a smooth and beneficial process
A GST audit is crucial for :
- Ensuring tax compliance
- Avoiding penalties and interest
- Enhancing transparency and trust with tax authorities
- Identifying and correcting errors proactively