Reassessment is won on jurisdiction more often than on merits, which changes who you need and when. Here is who can represent you at each stage, and what to look for before you appoint anyone.
Reassessment proceedings are handled by chartered accountants and advocates, and for anything material you usually want both.
A chartered accountant can represent you at every stage that matters most: the show cause reply, the reassessment proceedings before the Assessing Officer, the first appeal, and the Income Tax Appellate Tribunal. Under Section 515 of the Income-tax Act, 2025 (formerly Section 288), an accountant is a recognised authorised representative, and written authorisation is required.
An advocate is essential for one thing a CA cannot do: appear in the High Court. In reassessment, that matters far more than in ordinary tax work, for the reason set out below.
In most tax disputes you argue the merits: whether the addition is right. In reassessment, taxpayers overwhelmingly win on the reopening itself.
Through 2026, courts have quashed reassessments because the officer lifted information from the Insight Portal without applying his own mind, because the show cause notice was vague, because the final order relied on allegations different from those first put, because the officer merely changed his opinion on material already examined, and because the notice was issued out of time.
None of those is an accounting argument. All of them are jurisdictional. And every one has to be preserved in the reply at the show cause stage, because grounds not raised there are much harder to run later.
That single fact drives the whole representation question. Our detailed guide on how to respond to a Section 148 or 148A reassessment notice sets out the grounds themselves.
The ordinary outer limit is three years and three months from the end of the relevant assessment year, extending to five years and three months only where the escaped income is fifty lakh rupees or more and is evidenced by material of a specified kind. Computing this correctly, and testing whether the department has earned the extended window, comes before anything else. If the notice is out of time, nothing else matters.
Was the show cause notice issued at all? Was the information relied on actually supplied? Was your reply considered? Was a reasoned order passed? Was prior approval of the specified authority obtained? Each is a potential defect.
Contract notes, demat statements, bank trails, invoices, audited accounts. This is where borrowed satisfaction gets defeated, by showing the officer's assertion does not match your record. It is accounting work, and it is the CA's core contribution.
The reply has to be structured, numbered and impossible to skim past, with each objection separately made so that ignoring it becomes visible on the face of the order.
Deciding early whether this is a writ case or an appeal case, and pleading accordingly.
In an ordinary tax dispute, the High Court is the fourth stop and years away. In reassessment it is frequently the first stop, because a defect in the reopening can be challenged straight away rather than argued through three forums first.
That has a practical consequence most companies miss. If your strongest point is that the notice is time-barred, that the order abandoned the original allegation, or that you were never heard, you may be heading to the High Court within months. Which means counsel should be identified early, and the reply should be drafted knowing a judge may read it.
Whether to take that route or use the statutory appeal is a genuine judgment call, and getting it wrong wastes both time and the point itself. Our note on writ versus appeal in tax litigation sets out how to decide.
Where the statutory route is right, the sequence runs through the first appeal to the CIT(A) in Form 99 and then to the Tribunal, with the mechanics in our guide on filing an ITAT appeal.
For a material reassessment, the effective structure is usually:
A CA firm leading, because they hold the factual record, can reconstruct the transactions, know your filing history, and can appear all the way to the Tribunal.
Counsel engaged early where the case is jurisdictional, advising on the grounds at reply stage rather than being handed a file after the order.
Your in-house team supplying the record, not drafting the defence. They are answering a notice about their own filings, which makes objectivity difficult.
The failure mode to avoid is sequential engagement: the accountant files a short reply, the order goes against you, and counsel is then asked to build a writ on grounds nobody preserved.
A reassessment order comes with a demand, and filing an appeal does not stop recovery. That needs a separate stay application, handled in parallel, as set out in our guide on how to get a stay of demand.
Whoever you appoint should raise this without being asked. If they do not, they are solving half your problem.
Three categories of reassessment need more than general tax capability.
Foreign asset cases. Where the reopening follows information received under the automatic exchange framework, the Black Money Act runs alongside the Income-tax Act with far harsher consequences. Read our notes on black money and non-residents, handling disputes under the Black Money Act and what happens if you do not disclose foreign income in your ITR. Residential status for each year under scrutiny usually has to be established first, which is why residential status and its impact on taxability is the starting document.
Penny stock and bogus LTCG cases. These almost always rest on an investigation report applied wholesale. They are won by proving the officer never linked the material to your actual transactions.
Cross-border and related-party matters. Where the reopening touches international transactions, the Dispute Resolution Panel route may be in play and the strategy differs.
Yes. A CA can draft the reply, represent you before the Assessing Officer, and appear through the first appeal and the ITAT.
Not for the reply or the Tribunal. You do for a High Court writ or appeal, and because reassessment is often challenged by writ, counsel is worth involving earlier than in other tax disputes.
They can, but the reply is the foundation of every later stage and needs jurisdictional objections most in-house teams will not think to raise.
Yes. Written authorisation is required, and service on a representative without specific authorisation has been held not to be good service.
No, but every week costs you. The best defences are built before the reply.
Ideally yes. The appeal is argued on the record the reply created, and continuity avoids grounds being lost in the handover.
Send us the notice and the information relied on. We will compute limitation, test the approval and procedure, tell you whether this is a writ case or an appeal case, and draft the reply that preserves every ground. DSRV and Co LLP handles reassessment and Black Money Act proceedings from the show cause stage through appeal and Tribunal, and works alongside counsel where a matter goes to the High Court, as part of our income tax litigation practice. Book a free 15-minute reassessment review.
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