A multi-GSTIN audit file should separate registration-specific obligations while explaining inter-unit transactions consistently. Map invoice flows, cross-charges, common costs and reconciliations to source records. A consolidated management report is useful for oversight but should not obscure the distinct legal positions of individual registrations.
The business situation
A central finance team prepares a single audit response for six registrations. The revenue totals reconcile at group level, but an inter-unit supply appears under different periods in the two local files. The total is correct while the registration-level explanation is incomplete.
A GST dispute must be analysed by transaction, tax period, statutory provision and procedural stage. A reconciliation difference is a starting point for investigation, not a substitute for the statutory test. Keep liability, interest, penalty and available procedure separate in the working file.
What needs examining
01. Define the audit perimeter and period
Identify the authority, registrations, financial years, requested records and procedural stage. Separate an information request from a formal allegation or demand. Record who is authorised to respond for each registration and how central and local teams will reconcile facts. The scope should be clear before large volumes of data are disclosed.
02. Trace shared costs and inter-unit treatment
Review the actual nature of each common cost, allocation, service and supply. Examine the applicable distinct-person, valuation and credit-distribution requirements for the period. Do not assume that one allocation key or one treatment applies to every expense. Keep the commercial rationale, tax analysis and accounting entry connected.
03. Use a controlled response set
Maintain a versioned index, consistent definitions and a log of submissions. Explain changes between drafts and correct errors transparently. Ensure that an answer given for one GSTIN does not contradict another without a reasoned explanation. Limit disclosure to the lawful request while preserving cooperation and the required records.
Law, contract and recommended practice
CGST and applicable SGST or UTGST law, the IGST Act, rules, notifications and period-specific amendments must be read together. Verify the legislation operative for the relevant period. This collection does not prescribe a universal notice, appeal or refund deadline.
Connect the control to the evidence
Use this table to scope the review. The legal basis and the practical control are identified separately.
| Obligation or objective | Practical control | Evidence to retain |
|---|---|---|
| Statutory assessment Apply obligations to the correct registration | GSTIN-by-period issue map | Registration-specific reconciliation |
| Procedural control Maintain a consistent response record | Central review with local factual confirmation | Submission index and acknowledgements |
| Recommended practice Resolve inter-unit differences | Two-sided transaction reconciliation | Matched entries and explained exceptions |
Records to prepare
Bring the complete, current record to the review. Preserve earlier versions where a change or disputed event makes them relevant.
Common questions
Can the group respond using only consolidated accounts?
Usually those accounts will not answer every registration-specific question. Use them for the overall picture, with reconciliations that establish the position for each relevant GSTIN and period.
Should every shared expense be treated identically?
No. Review the supply, recipients, applicable provisions and period. Distinct-person transactions and credit-distribution questions require their own legal and factual analysis.
Create the central index before collecting records. Then require each local team to confirm its transactions against the same definitions and cut-off dates.
Legislation & official resources
These references identify the governing frameworks. Confirm the current text, relevant amendments and applicable judicial position for the matter.
- CGST Act, 2017 — CBIC reference compilationCentral Board of Indirect Taxes and Customs · Historical compilation as at 30 September 2020. Later amendments must be checked for the relevant period; this is not a current consolidated text.
- GST Acts — official CBIC resourcesCentral Board of Indirect Taxes and Customs · Legislative resource index. Check the applicable central, state and integrated-tax provisions and current notifications.
This note is general information. The scenario is hypothetical and does not describe a client matter. The legal result depends on the facts, documents, jurisdiction and operative law. No individual lawyer review is represented by the preparation date.
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