Customs Law: Levy, Types of Duty, Classification and Valuation
A genuinely different pipeline, built around two gatekeeping questions
The method chapter flagged this directly: Customs does not extend GST's own supply-place-time-value logic, and building a mental bridge from GST to Customs generally does more harm than good. Customs duty is levied on goods crossing India's customs frontier, and no computation of that duty can even begin until two specific, sequential questions are answered — what is the good, its classification under the customs tariff, and what is it worth, its value under the transaction value rules. This chapter develops both gatekeeping questions in full, then the specific duties (basic customs duty, and the specific categories of additional duty responding to particular trade situations) that a correctly classified and valued good can then actually be charged.
The charge of customs duty: what triggers liability at all
Import and export as the triggering events. Customs duty is levied on goods imported into, or exported from, India, with "import" meaning bringing goods into India from a place outside India, and the taxable event generally crystallising at a specific point defined by the Customs Act (broadly, the point goods cross into India's territorial waters for import, though the practical rate and valuation applicable are generally fixed by reference to a specific, later procedural date, such as the date a bill of entry is presented, rather than the physical crossing moment itself, since the physical crossing moment is often not precisely, contemporaneously documented in the same way a formal customs declaration is).
Goods, and the specific meaning this term carries in Customs law. "Goods" for customs purposes is defined broadly, extending to vessels, aircraft, and vehicles, baggage, currency and negotiable instruments, and any other kind of movable property, a deliberately broad definition ensuring the customs framework's scope is not confined only to ordinary, conventional merchandise but extends to the full range of physical property that could genuinely cross India's customs frontier.
Classification: the first gatekeeping question
The Harmonized System as the structural backbone. India's customs tariff is built on the Harmonized System of Nomenclature, an internationally standardised system of numerical codes classifying goods into specific headings and sub-headings based on their nature, composition, and use, adopted (with country-specific variations at the more granular level) by the overwhelming majority of trading nations worldwide, meaning classification is not a uniquely Indian exercise invented from scratch but largely follows this shared, international structure, a genuinely useful anchor for reasoning about an unfamiliar good's likely classification by analogy to how structurally similar goods are typically classified.
Why classification is rarely a simple, single-glance determination. A good's correct classification depends on applying the tariff's own General Rules of Interpretation in a specific, hierarchical sequence, first by the terms of the headings themselves and any relevant section or chapter notes, and only where this does not resolve the classification, by further, more specific rules addressing incomplete or unfinished goods, mixtures and composite goods (classified, broadly, by the material or component giving the good its essential character), and goods that could otherwise be classified under two or more headings equally (resolved by preferring the heading providing the most specific description over one providing a more general description). A Final-level classification question is rarely a simple, single-glance determination precisely because it is deliberately built around a good sitting near the boundary between two plausible headings, testing whether a candidate can correctly apply this hierarchical interpretive sequence rather than simply asserting an intuitively plausible classification without working through the actual, governing interpretive rules.
Why classification is the gatekeeper for both rate and exemption. The specific rate of basic customs duty applicable to a good, and whether any specific exemption notification applies to it at all, both depend entirely on the heading a good is classified under; a good misclassified into an adjacent heading carrying a materially different rate, or falling outside a specific exemption notification's own defined scope, produces an incorrect duty computation even where every subsequent step (valuation, rate application) is performed with complete arithmetic accuracy, precisely why classification is treated as this subject's first, foundational gatekeeping question rather than a peripheral, largely mechanical preliminary.
Valuation: the second gatekeeping question
Transaction value as the general basis. The value of imported goods for customs duty purposes is generally the transaction value, the price actually paid or payable for the goods when sold for export to India, adjusted for specified inclusions and, in specified circumstances, exclusions, determined under the Customs Valuation (Determination of Value of Imported Goods) Rules, this general approach broadly analogous in spirit, though built on its own distinct, internationally-derived rule set, to how GST's own section 15 anchors value to the actual transaction price as the general starting point.
Specific inclusions in transaction value. Transaction value includes specified costs and services incurred up to the point of import into India, the cost of transport (freight) to the place of importation, loading, unloading and handling charges associated with the transport, and the cost of insurance, ensuring the value duty is charged on genuinely reflects the good's full landed cost up to the point it actually enters India, rather than only its bare, ex-factory price at the point of original sale abroad, before the further costs of actually bringing it to India are incurred.
When transaction value cannot be accepted, and the alternative valuation hierarchy. Where the buyer and seller are related persons, and this relationship has influenced the price, or where there is no sale at all, or insufficient information exists to determine transaction value reliably, or specified other circumstances undermine confidence in the declared price, transaction value cannot be directly accepted, and value must instead be determined under a specified hierarchy of alternative methods, generally beginning with the transaction value of identical goods, then similar goods, then a deductive method (working backward from the resale price of the imported goods in India), then a computed method (based on cost of production plus profit and general expenses), and finally a residual, "best judgment" method applying reasonable means consistent with the underlying valuation principles where none of the preceding methods can be applied — this specific, sequential hierarchy exists to ensure valuation proceeds through a structured, internationally consistent sequence rather than the customs authority simply substituting its own arbitrary estimate the moment transaction value is rejected.
Types of duty: what a correctly classified and valued good can actually be charged
Basic customs duty. The foundational levy applied to the assessable value of imported goods, at the rate specified in the customs tariff for that good's specific classification, the core, general-purpose duty every dutiable import attracts absent a specific exemption.
Integrated tax and compensation cess on imports. Beyond basic customs duty, imported goods generally also attract integrated tax (IGST) under the Integrated Goods and Services Tax Act, and, for specified goods, GST compensation cess, both computed on a value that itself includes basic customs duty, meaning these GST-linked levies on imports are not computed on the same base as basic customs duty itself, but on a base that has already been increased by that basic duty, a frequently tested computational sequencing point connecting this Customs chapter directly back to the GST cluster's own import-related place-of-supply treatment.
Safeguard duty. A temporary, product-specific duty imposed under the Customs Tariff Act where a surge in imports of a particular product is found, through a specific, structured investigation process, to have caused or to threaten serious injury to a domestic industry producing like or directly competitive goods, this duty being deliberately temporary and tied to the specific finding of injury, rather than a permanent feature of the tariff for that product, since its entire policy justification is addressing a specific, time-bound import surge situation rather than serving as an ordinary, permanent revenue measure.
Anti-dumping duty. A duty imposed where a foreign exporter is found, again through a specific investigation, to be exporting a product to India at a price below its normal value in the exporter's own home market (dumping), causing or threatening material injury to a domestic industry, calibrated to the specific margin of dumping established for that exporter's specific product, addressing a genuinely different underlying concern than safeguard duty: safeguard duty responds to a surge in fairly-traded imports overwhelming domestic industry, while anti-dumping duty responds specifically to unfairly, below-normal-value-priced imports from a specific exporter or set of exporters.
Countervailing duty. A duty imposed to offset a specific subsidy a foreign government has granted to its own exporters in respect of the exported product, addressing yet another distinct concern from both safeguard and anti-dumping duty: here, the unfair advantage arises not from the exporter's own pricing decision but from a foreign government's own subsidy artificially lowering that exporter's effective cost, and countervailing duty is calibrated specifically to offset the quantified value of this subsidy.
Why classification and valuation genuinely are this subject's own gatekeeping questions
Every specific duty this chapter develops, basic customs duty, the IGST and cess layered on top of it, and the trade-remedy duties (safeguard, anti-dumping, countervailing), is computed against a classification and a value that must both first be correctly established; a candidate who has mastered every specific duty's own computation but applies it to an incorrectly classified or incorrectly valued good produces a wrong final figure regardless of how correctly every subsequent computational step was performed, exactly mirroring the lesson this paper's GST cluster draws about the supply-place-time-value pipeline's own opening stages. Master classification's hierarchical interpretive rules and valuation's transaction-value-first hierarchy as this subject's own two non-negotiable starting points, before any specific duty computation can meaningfully begin.
