What a GST Department Audit Actually Looks Like: A Kolkata Business Owner's Walkthrough

A real audit scenario, from the initial intimation letter to the closure report. What did the department check and what surprised the client, along with a pre-audit checklist. Getting selected for a Goods and Services Tax (GST) audit doesn’t always mean your business practices are compromised. It could be that the turnover, your input tax credit (ITC) claim pattern, or your industry sector is randomly flagged by the department. But, most often, a business owner has little idea about the process and hence, the panic begins when they receive the intimation notice. Here’s the real experience (with necessary information redacted) of our Kolkata-based client – a mid-sized trading company with a turnover of more than Rs5 crore, subject to routine audits under the CGST Act as per the current threshold requirements.

Sneha Das

7/29/20263 min read

How It Began?

Under a notice issued in Form GST ADT-01 by the CGST department vide section 65 of the CGST Act, our client received a formal intimation for a departmental audit covering two assessment years. The statutory notice mentioned the initiation date of the scrutiny and listed out the documents they’d be expected to furnish upon request, including GSTR-1 and GSTR-3B, purchase and sales register, e-way bill details, and bank records among others. As per section 65(3), a taxpayer is entitled to a minimum of 15 working days prior notice before the start of the audit.

What Did the Audit Cover?

The field or office audit commenced with a close examination of the following compliance areas:

Eligibility of ITC claimed: Invoices against which ITC was availed under section 16 had to be produced by the taxpayer to cross-verify their claim with that of eligible supplier returns.
Correctness of HSN/SAC code: The correctness of rates of tax charged was also probed under the ambit of this section.
Compliance with Reverse Charge Mechanism: Invoices self-assessed and paid by the taxpayer under RCM were also reviewed by the department.
Reconciliation of turnover: The figures of turnover, taxable turnover, and tax paid as per GSTR-1, GSTR-3B, and the audited financial statements had to be reconciled.
E-way bill and movement of goods: The audit also covered the verification of high-value outward supplies against the e-way bills generated.
Exempt supplies/nil-rated supplies: The correctness of ITC reversal as per rule 42 and 43 was scrutinized by the department.
Adjustments through credit/debit notes: The audit also covered adjustment of sales returns and price variations reflected in the monthly returns.
Ledger-wise reconciliation: Finally, the cash and credit ledger were checked to confirm their reconciliation with statutory provisions.

What Surprised Our Client?

The biggest takeaway from the audit was that a few of the supplier invoices against which ITC had been claimed had since become ineligible. This was because some suppliers had defaulted on their GST filings, despite the taxpayer having made full payments to them.

By the current provisions, the eligibility of ITC is not only dependent on timely payments by the recipient but also on the continuous compliance by the supplier. Hence the taxpayer could potentially lose ITC if their suppliers fail to file returns or pay tax forward.

What We Did?

To resolve the proceedings cleanly, our compliance team executed a structured defense strategy:

Pre-Audit Reconciliation Dossier: Compiled a comprehensive period-wise reconciliation report matching books, GSTR-1, and GSTR-3B across both financial years before the auditors arrived.
Vendor Health Audit: Cross-checked every active supplier's historical and current GST filing status to isolate risk vectors in advance.
Real-Time Representation: Represented the client directly before the audit authorities, responding to technical officer queries with supporting documentation and ledger extracts.
Proactive Correction: Reconciled minor discrepancies and reversed isolated elements of disputed credit ahead of the final report, minimizing potential interest and penalty liabilities under Section 73.

The audit successfully concluded with minor technical observations and zero financial penalties, resulting in the issuance of a clean closure summary.

Strategic Checklist for Audit Readiness

To protect your business from sudden tax exposures, integrate these protocols into your routine operations:

Monthly ITC Matching: Reconcile your purchase register against auto-populated GSTR-2B statements monthly, rather than waiting for an annual review.
Vendor Compliance Tracking: Regularly monitor key suppliers' filing regularities to avoid sudden ITC blockages.
Maintain Centralized Dictionaries: Keep digital archives of all e-way bills, delivery challans, and invoice series neatly indexed for rapid retrieval.

Frequently asked questions (FAQs)

Q1. Does a GST audit notice under section 65 mean that my business is suspected of fraud?

A. No, in most cases it does not. It is usually the result of random selection for a routine audit by the department.

Q2. Could my business lose ITC on account of my vendor’s default?

A. Yes, a taxpayer can be denied ITC if the supplier’s invoices are not uploaded on the GST portal or the supplier has defaulted on their tax payments.

Q3. How can I prepare for a GST audit in advance?

A. By maintaining regular monthly ITC reconciliations as well as periodic reviews of your suppliers’ filing compliance.

Q4. Is there a time limit for a department audit?

A. Yes, as per section 65(4), a department audit has to be completed within 3 months of its commencement (can be extended up to 6 additional months by the commissioner – total 9 months).

Q5. What happens after a GST audit report is submitted?

A. Within 30 days of audit completion, the proper officer will issue a notice in Form GST ADT-02 informing the taxpayer of the audit results. If any discrepancies are recorded, a show-cause notice (SCN) will be issued under section 73 or 74, asking the taxpayer to explain why they shouldn’t be penalized.

Conclusion

If you are a business with turnover projections of over Rs2 crore and approaching or crossing the Rs5 crore mark, you have to prepare for departmental audits on a routine basis. These audits are typically carried out by the tax authorities as a part of their regular compliance management and risk assessment processes. Hence, it’s always better to be prepared than caught off guard. The businesses that successfully clear such audits are the ones that routinely reconcile GSTR-1, GSTR-3B, and their books of account (and keep track of any ITC discrepancies arising from suppliers’ defaults).