Indirect Tax Laws · Levy of and Exemptions from Customs Duty

Classification of Goods and Customs Tariff (CA Final IDT)

Updated 5 October 2026 · Fact-checked

Classification means placing goods under the correct tariff item of the Customs Tariff, which follows the HSN. You read the heading and Section or Chapter Notes first, then apply the General Rules of Interpretation in order. The classified item gives the duty rate, which you apply to the assessable value.

Understand Classification of Goods and Customs Tariff

Every imported or exported good must carry a tariff code. That code decides the rate of duty, and often whether an exemption or a restriction applies. Classification is the step that finds the code.

The Customs Tariff Act, 1975 has two Schedules. The First Schedule lists import goods and their rates. The Second Schedule lists export goods that attract export duty. The First Schedule is arranged in Sections, which are divided into Chapters. Each Chapter has headings and sub-headings.

The structure follows the Harmonised System of Nomenclature (HSN) of the World Customs Organization. The first 6 digits are the international HS code. India adds further digits to reach an 8-digit tariff item. A 4-digit code is a heading, 6 digits is a sub-heading and 8 digits is a tariff item. Exporters also use 8-digit ITC (HS) codes, a related topic.

When goods do not fit neatly into one heading, the General Rules for the Interpretation (GIR) decide. They work in sequence. You move to the next rule only if the earlier one does not settle the matter. Courts also use the common (trade) understanding of a term where the Tariff does not define it. They treat the HSN and its Explanatory Notes as a strong guide where the Indian entries are based on the HSN.

Once the tariff item is fixed, the rate in the Tariff applies, along with any exemption notification that refers to that item. On imports you usually compute basic customs duty, then Social Welfare Surcharge, then IGST. The rate is the one in force on the relevant date, which another topic covers.

Key rules to remember

Rule 1: Headings and Notes: Classification = terms of the heading + Section Notes + Chapter Notes; Section and Chapter titles are only for reference. If the heading and Notes settle it, you stop. Rules 2 to 5 apply only if they are not contrary to the heading or Notes.
Rule 2(a): Incomplete or unassembled articles: Incomplete/unfinished article with essential character of the complete article, or complete article presented unassembled or disassembled → classify as the complete article; Applies to the article as presented. The incomplete article must have the essential character of the complete one.
Rule 2(b): Mixtures and combinations: Reference to a material includes mixtures or combinations of it with other materials; goods of more than one material → Rule 3; Rule 2(b) extends the heading. It does not choose between competing headings. Rule 3 does that.
Rule 3: Two or more headings: (a) most specific description → (b) essential character (mixtures, composite goods, sets for retail sale) → (c) heading last in numerical order; Apply in this order. Rule 3(a) loses force if headings each refer to only part of the goods in a set. Then go to 3(b).
Rule 4: Most akin: Goods not classifiable by Rules 1 to 3 → heading for goods to which they are most akin; Used only as a last resort.
Rule 5: Cases and packing: (a) specially shaped cases presented with the article → with the article; (b) packing materials normally used → with the goods; Rule 5(b) does not apply to packing clearly suitable for repeated use.
Rule 6: Sub-headings: Classify within a heading by sub-heading terms, sub-heading Notes and Rules 1 to 5, comparing only sub-headings at the same level; First fix the 4-digit heading, then the sub-heading, then the tariff item.
Illustrative import duty build-up: BCD = AV × BCD rate; SWS = BCD × SWS rate; IGST = (AV + BCD + SWS) × IGST rate; Total = BCD + SWS + IGST; AV is the assessable value. Use the rates given in the question. Some goods are exempt from SWS or carry other duties, so follow the facts.

How to solve Classification of Goods and Customs Tariff questions

Use this order for any classification question. It also gives you the structure of a written answer: provision, facts, conclusion.

1Identify the goods precisely: what they are, material, function, form (finished, unfinished, unassembled, in a set) and how they are presented.
2Find the likely headings. Check the terms of each heading, then the Section Notes and Chapter Notes, including exclusions.
3Apply Rule 1. If one heading fits on its terms and Notes, classify there and stop.
4If the goods are incomplete, unassembled or mixed, apply Rule 2. If more than one heading still fits, apply Rule 3 in order: specific, essential character, last in numerical order.
5Apply Rule 4 only if nothing fits. Apply Rule 5 for cases and packing materials.
6Apply Rule 6 to pick the sub-heading and tariff item within the chosen heading.
7Read the rate of the tariff item and any exemption notification that refers to it. Compute duty on the assessable value using the rates given.
8Write the conclusion with the rule relied on and the reason. State your assumptions clearly.

Quickest way: Rule ladder shortcut

When to use it: Use it in MCQs and short case questions where you must name the correct heading or rule in under two minutes.

Ask first: does a heading or Note name these goods? If yes, it is Rule 1.
If the goods are unfinished or unassembled, it is Rule 2(a). If they are a blend or made of several materials, it is Rule 2(b), then Rule 3.
If two headings compete, ask in order: which is more specific, which part gives the essential character, which heading comes last.
Retail set of different items with no specific heading: find the component that gives the essential character.
Packing: normal, not reusable packing follows the goods under Rule 5(b).
Then use the stated rate and compute BCD, SWS and IGST in that order.

Common mistakes in Classification of Goods and Customs Tariff

Starting with Rule 3 or Rule 4 because the goods seem to fit two headings.
Students memorise the rules as a list and skip the headings and Notes.
Fix: Always test Rule 1 first. Many disputes end at the Section or Chapter Notes, which often exclude certain goods.
Treating Section or Chapter titles as decisive.
The title looks like a clear description.
Fix: Titles are only for ease of reference. The terms of the heading and the Notes decide.
Using 'last in numerical order' as the first tie-breaker.
It is the easiest rule to remember.
Fix: Rule 3(c) applies only when 3(a) and 3(b) fail. Check specificity, then essential character.
Classifying a disassembled machine as 'parts'.
Students look at the physical state rather than the rule.
Fix: Under Rule 2(a), a complete article presented unassembled or disassembled is classified as the complete article. Check that the full set of components is presented.
Comparing sub-headings of different levels under Rule 6.
Students jump to the 8-digit item without fixing the 4-digit heading.
Fix: Fix the heading first. Then compare sub-headings of the same level only.
Computing IGST on assessable value alone.
Students forget that duties are cumulative.
Fix: Add BCD and SWS to the assessable value before applying the IGST rate, unless the question says otherwise.

Worked examples

Example 1

A trader imports a retail gift box containing a leather wallet, a metal pen and a key ring, all put up together for sale directly to consumers. Each item falls under a different tariff heading. No heading covers the set as such. The wallet is the most valuable item and the main reason for buying the box. How is the set classified?

Show the solution

Rule 1: no heading or Note covers the set as a whole, so Rule 1 does not settle it.
Rule 2 does not help. The set is complete and is not a mixture of materials.
Rule 3(a): each heading describes only part of the set, so none is more specific. We move on.
Rule 3(b): the goods are a set put up for retail sale made up of different articles. They are classified by the component that gives the set its essential character.
Facts: the wallet drives value and purchase, so it gives the essential character.
Conclusion: classify the whole set under the heading for the wallet, then fix the sub-heading and tariff item under Rule 6.

Answer: The set is classified under the wallet's heading by Rule 3(b), because the wallet gives the set its essential character.

Example 2

A company imports a machine in disassembled form in one consignment with all its components. It declares the goods as 'parts of machines' under a residual item with BCD at 10%. The officer says it is a complete machine with BCD at 7.5%. The assessable value is ₹8,00,000. Assume SWS at 10% of BCD and IGST at 18%. Decide the classification and compute the duty, and the difference from the declared position.

Show the solution

Rule 2(a): a complete article presented unassembled or disassembled is classified as the complete article. The full set is in one consignment, so the goods are the complete machine.
Duty on the correct item: BCD = 7.5% × ₹8,00,000 = ₹60,000.
SWS = 10% × ₹60,000 = ₹6,000.
IGST base = ₹8,00,000 + ₹60,000 + ₹6,000 = ₹8,66,000. IGST at 18% = ₹1,55,880.
Total duty = ₹60,000 + ₹6,000 + ₹1,55,880 = ₹2,21,880.
Duty on the declared basis: BCD = ₹80,000; SWS = ₹8,000; IGST base = ₹8,88,000; IGST = ₹1,59,840; total = ₹2,47,840.
Difference = ₹2,47,840 − ₹2,21,880 = ₹25,960.

Answer: The goods are classified as a complete machine under Rule 2(a). Total duty is ₹2,21,880. The importer's declared classification would have given ₹2,47,840, which is ₹25,960 higher.

Exam tips

In written answers, name the rule, quote its condition, apply it to the facts and state the conclusion. Examiners reward the rule sequence.
Look for the clue in the facts: 'unassembled' points to Rule 2(a), 'set for retail sale' to Rule 3(b), and 'container or packing' to Rule 5.
For case laws, cite only those you are sure of, with the principle. A known principle is that the Supreme Court has held that the HSN Explanatory Notes are a guide to interpreting the Tariff where the entries follow the HSN. Do not invent citations.
In computations, show each duty as a separate line and state your assumed rates. MCQs have no negative marking, so always attempt them.
Link classification to exemption: the notification refers to the tariff item, so a wrong classification can lose or wrongly claim the exemption.

Practice questions from Levy of and Exemptions from Customs Duty

Classification of Goods and Customs Tariff in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Classification of Goods and Customs Tariff: frequently asked questions

What is the difference between HSN and the Customs Tariff?

The HSN is the international nomenclature of the World Customs Organization, with 6-digit codes. The Customs Tariff is India's schedule, which follows the HSN and adds further digits to reach 8-digit tariff items with rates.

Which rule do I apply first when classifying goods?

Apply Rule 1 first. The terms of the heading and the Section and Chapter Notes decide the classification if they are clear. Use Rules 2 to 5 only when Rule 1 does not settle it.

Does the order of Rule 3 matter?

Yes. You must apply Rule 3(a) first, which prefers the most specific description. Then apply Rule 3(b), essential character, and use Rule 3(c), the heading last in numerical order, only if both fail.

Why does classification matter if the value is fixed?

The tariff item decides the rate of duty and which exemption notification, if any, applies. Two classifications can produce very different duty on the same value, as the worked example shows.