Every week we get a call from a small business owner who has opened a notice from the GST department and is now in the middle of a slow-motion panic. The notice has a 7-day or 15-day window, a vague “show cause” language, and an instruction to “appear personally or through authorised representative”. They have been told by a well-meaning friend that they need a lawyer. They are about to spend ₹40,000 on counsel fees for something their CA could have handled in an hour.

This is the triage. The GST Act generates roughly two dozen notice types in routine practice. We classify them into three buckets:

Bucket A: CA handles. Routine reconciliation, return mismatch, refund hold, registration amendment. The notice requires a technical response backed by accounts.
Bucket B: CA + counsel. Demand-cum-show-cause, audit objection, classification dispute. The notice is technical and the law is technical. A CA prepares the response; counsel argues it.
Bucket C: Counsel leads. Search, seizure, arrest, prosecution, anti-evasion. The notice is quasi-criminal. Only counsel should be your first call.

The five notice types in Bucket C are the ones that genuinely need a GST lawyer. The rest can be handled by a competent CA, often over WhatsApp.

Bucket A — the CA handles

GSTR-3B vs GSTR-1 mismatch notice (ASMT-10)

The department’s auto-flag for mismatch between outward supplies declared in GSTR-1 and the summary in GSTR-3B. Common reasons: amendments filed late, credit notes processed in different periods, HSN misclassification.

Response: 30-minute reconciliation of both returns, identification of the variance, payment of differential tax with interest under Section 50, response in FORM GST ASMT-10 with the reconciliation.

This is a bookkeeping task. A good CA closes it in 2-3 hours of work, response is filed in 48 hours, and the matter is over. No lawyer needed.

Refund hold (RFD-08 / RFD-09)

Refund application stalled due to officer’s objection — typically mismatch between GSTR-1 and GSTR-2B, deficiency memo issued, or additional documentation demanded.

Response: rebuttal of the specific objection with documentary proof, supplementary submission. A CA who has filed the refund in the first place can handle this. Counsel is not required unless the matter escalates to the High Court.

Registration amendment (REG-31)

The department has questions about a registration application — signatory KYC, principal place of business proof, bank account confirmation, or a partner/director change.

Response: a clarification letter with the missing documents. This is administrative; a CA or even a competent accountant can respond.

Bucket B — CA and counsel together

DRC-01 (demand-cum-show-cause notice under Section 73 or 74)

This is the notice that panics most business owners. It is a formal demand that names a tax amount, interest, and penalty, and asks why it should not be raised as a final demand. The notice runs to 10-20 pages with annexures showing the variance.

If the variance is technical and you have a clean paper trail, a CA prepares a response, computes the correct differential, and pays the tax with interest. A counsel is helpful to argue the legal points (limitation, interpretation, classification) but is not strictly necessary.

If the variance is in the lakhs and the legal points are contested (e.g. classification of a service, eligibility for an exemption, time-bar under Section 74), counsel is essential. We typically work with a CA-cum-counsel combination: the CA builds the factual record, the counsel drafts the legal argument.

Annual scrutiny (Section 61 read with Section 62)

The department has selected your return for scrutiny and is calling for documents. The selection could be random, could be sector-driven, could be based on a specific risk parameter. The response is a 60-day window to file original or revised return with supporting documents.

A CA can handle the response, but counsel is helpful if the scrutiny is initiated by a specific intelligence input (e.g. ITC chain suspicion, E-Way Bill mismatch). The counsel ensures the response is drafted in a manner that doesn’t waive any right of appeal.

Bucket C — counsel leads, do not delay

These five notices. The first time you see one of these, your first call is to a GST counsel, not a CA.

1. Search and seizure under Section 67 (or the equivalent CGST/SGST)

An officer arrives at your premises with a search warrant, demands access to books, computers, and phones, and seizes records. There is a 30-day window to file objections, but the immediate priority is:

Comply with the warrant. Do not resist. Resisting is a separate offence under Section 129 of the Indian Penal Code.
Call your counsel on the phone while the officers are still in the premises. Counsel will tell you what to say, what to sign, and what not to.
Maintain a copy of every document produced. Photocopy or photograph everything before the officer takes the original.
Do not make statements on tape without counsel. Many officers will record statements under Section 70(1) — the statement is admissible against you. A counsel can ensure the statement is restricted to the questions asked, not volunteered.

2. Arrest under Section 69

A GST officer can arrest a person for non-payment of tax exceeding ₹5 crore (CGST/SGST combined). The arrest is quasi-criminal. Bail is available, but you need a counsel to argue for default bail under Section 167(2) of the CrPC, statutory bail under Section 50(2) of the CGST Act, or anticipatory bail under Section 438 CrPC.

A CA has no role in the first 48 hours of an arrest scenario. A counsel’s role is to ensure the arrest is lawful, the remand is contested, and the bail application is filed at the earliest opportunity.

3. Prosecution complaint under Section 132

The department has filed a criminal complaint in the Magistrate’s court. This is the endgame of an evasion proceeding. The complaint alleges wilful evasion, fraud, or false invoicing. Penalties can include imprisonment up to five years.

You must engage counsel immediately. The CA’s role is limited to the documentary record; the counsel handles the criminal defence.

4. Lookout circular / Interpol notice (rare but increasing)

The department has flagged you at airports. This is a step in serious evasion cases. Counsel is essential.

5. DGGI / DGGST call for personal appearance

The Directorate General of GST Intelligence has issued a summons under Section 70 asking for personal appearance. This is not a routine notice. DGGI cases typically involve ITC chains of several crores, inter-state fake invoices, or export-import irregularities. The summons is an investigative step, not a quasi-judicial one. You are not under arrest, but the statements you make are recorded and may be used as evidence.

A counsel who has dealt with DGGI cases should be present when you appear. A CA can assist with documents but should not lead the appearance.

The single most important advice

The most expensive mistake we see in GST notice handling is over-spending on counsel for a Bucket A notice, and under-spending on counsel for a Bucket C notice. The reverse is the actual cost-minimising strategy.

A Bucket A notice (mismatch, refund, registration) handled by a CA at ₹5,000-₹10,000 in fees is resolved in days. The same notice handled by a junior counsel at ₹40,000 is over-resourced and may take longer because the counsel is unfamiliar with the technical return-level reconciliation.

A Bucket C notice (search, arrest, prosecution) handled by a CA is malpractice. The first 48 hours determine the trajectory of the case. The CA’s role is supportive, not leading.

What to ask your CA when the notice arrives

Three questions:

What is the notice type? (Bucket A, B, or C)
What is the time window for response?
What is the financial exposure — tax, interest, penalty?

If the answers are “ASMT-10, 15 days, ₹30,000” — your CA handles it. If the answers are “search warrant, immediate, ₹4 crore plus” — your counsel handles it and your CA supports.

Most notices are Bucket A. A small number are Bucket B. A handful are Bucket C. The triage is the first 30 minutes and it sets the budget and the timeline correctly.

If you have a notice in hand and want us to triage it for you without charge, share a redacted copy on WhatsApp — we will tell you which bucket it falls in, what the realistic exposure is, and whether you need a counsel or a CA.