GST audits, scrutiny and investigations: a practical guide

A letter from the GST department rarely says what it really is. To the business receiving it, "scrutiny", "audit" and "investigation" can feel identical — official, urgent and alarming. They are not the same, and treating them the same is how a routine query turns into a demand.

This guide sets out what each one means, what the department is actually doing, and how to respond so the matter closes at the earliest stage.

Scrutiny of returns

Scrutiny is the lightest touch. Under Section 61, an officer examines your filed returns and flags discrepancies — usually a mismatch between GSTR-1 and GSTR-3B, or between your claimed input tax credit and GSTR-2B.

You'll typically receive a notice in Form GST ASMT-10 asking you to explain the discrepancy. This is not a demand. It is a question.

The right response is a clear, reconciled explanation in Form GST ASMT-11, with supporting workings attached. Most scrutiny notices close here if the reply is complete and on time. The mistake businesses make is treating ASMT-10 casually, missing the deadline, or sending a one-line reply — at which point the officer can escalate.

Departmental audit

An audit under Section 65 is broader and more structured. The department examines your records — returns, books, contracts, reconciliations — over a chosen period, usually at your premises or through a document request.

The outcome is recorded in Form GST ADT-02, listing observations. Each observation is, in effect, a position the department is minded to take against you. How you respond to ADT-02 shapes whether those observations become a show-cause notice.

Preparation is everything here:

• Reconcile turnover, ITC and RCM before the audit, not during it.
• Present records in the order the officer will look for them.
• Answer each observation with facts and law, not assertions.
• Document every position you take, with the reasoning behind it.

A well-run audit response often closes most observations and narrows the rest to a manageable few.

Investigation

Investigation is the most serious. It is initiated where the department suspects evasion, and it carries powers that scrutiny and audit do not — search under Section 67, summons under Section 70, and the recording of statements.

Two things matter most during an investigation:

1. What you say is on the record. A statement recorded under summons can be used to build a demand. Answer accurately, within your rights, and never volunteer exposure that hasn't been asked for.
2. Have representation early. This is not the stage to navigate alone. Experienced representation ensures you respond completely without overreaching.

Which one am I facing?

The common thread

Whatever the form, three principles hold: respond on time, respond completely, and document your position. Most matters that escalate to litigation did not have to — they escalated because an early, answerable query was answered late, partially, or not at all.

If you've received any of these and aren't sure which it is — or how to respond — that's exactly the kind of thing worth a short conversation before you reply.