What an appeal actually costs before it is heard
Pre-deposit arithmetic under both regimes, the ceilings, the difference between an additional deposit and a total one, and the windows that no authority can extend.
What to check before anyone starts drafting, why the period matters more than the merits, and the three things that quietly decide the matter years later.
A show cause notice is not a demand. It is a proposal, and the whole architecture of these laws assumes you will answer it. What happens in the first thirty days decides far more of the outcome than most people expect, because the record made now is the record the appellate authority reads in four years, and very little can be added to it later.
The instinct on receiving one is to argue the merits. That is the third thing to do, not the first.
A demand outside the statutory period does not survive, whatever it says about the merits. Under the Customs Act the ordinary period for a notice is two years from the relevant date Section 28(1), extended to five where collusion, wilful misstatement or suppression of facts is alleged Section 28(4). Under the GST law the demand provisions turn on the due date of the annual return for the year in question, with three years for an ordinary case Section 73(10) and five where fraud is alleged Section 74(10), and a separate unified provision applies from the financial year 2024-25 onwards Section 74A.
Two things follow from that. First, work out the actual date rather than assuming the notice is in time. Notices issued at the edge of a period are common, and a computation error on the department's side is not rare. Second, look at whether the extended period has been invoked, and on what basis.
The extended period is not available for the asking. It requires collusion, wilful misstatement or suppression, alleged with particulars and established on the record. Where the facts were disclosed, on the bill of entry, in the returns, in a reply to an earlier query, the allegation is answerable, and answering it well can remove three years of demand in a single paragraph.
This is worth doing carefully at the reply stage rather than saving it for appeal, because the reply is where the disclosure has to be demonstrated document by document. Appellate authorities are receptive to the point. They are much less receptive to it being made for the first time in the grounds of appeal.
Almost every notice contains something that is genuinely payable. Paying that part, with interest, early, is a technical move and not a concession on the rest, and the statutes reward it explicitly.
The benefit is not only the money. A reply that concedes the indefensible and contests the rest reads as credible. A reply that contests everything reads as a position rather than an analysis, and it is treated accordingly.
Before reading the department's version a second time, build your own from the underlying documents. Purchase orders, invoices, bills of entry, technical literature, contracts, returns, bank realisations, authorisation files. Roughly half the matters that arrive as a demand turn out to be a reporting difference rather than a tax difference, and that only becomes visible from the source.
Where the difference is genuine, the reconstruction still tells you the size of it, which is the number every subsequent decision depends on.
The reply is not correspondence. It is the record on which the matter will be decided at every stage after it, and the appellate route in these laws works from the record made below. Three consequences follow.
Statements. Anything recorded during an investigation carries weight that people do not anticipate when giving it. Retraction is possible and it is rarely as effective as not needing one. If a statement is to be given, it is given with the file in front of you and not from memory.
Adjournments. A personal hearing missed twice produces an ex parte order on a thin record, and that order then has to be attacked on appeal at the cost of a pre-deposit. Attend, even if the reply is not perfect.
Parallel proceedings. The same facts frequently sit before Customs, the GST authorities and the foreign trade authority at once. Whatever is conceded in the smallest of them is produced in the largest. There has to be one position.
The commonest and most expensive mistake in this whole sequence is asking for more time and then using it. A reply that is three weeks late and excellent is generally worth less than one that is on time and good.
Published 2026-08-23. General information about procedure under the law as it stood at the date of writing. Periods, rates and procedures in this field change by notification and by amending Act. This is not advice on any matter and reading it creates no consultant and client relationship.
Pre-deposit arithmetic under both regimes, the ceilings, the difference between an additional deposit and a total one, and the windows that no authority can extend.
A Special Valuation Branch reference is a process, not an accusation. What goes into the reply, why royalties are the hard part, and how a loading survives for years.
If the reply date is inside the next few weeks, that is the conversation to have now rather than after the draft is written.