Data Methodology

How we source our HSN, GST & import-duty data

The HSN Code Finder is built entirely from official Indian government data — no estimates, no scraping of third-party sites. Here is exactly what we use and how the numbers are produced.

Source: CBIC + ICEGATE·Duty & GST rates as at May 13, 2026·Last reviewed May 13, 2026

Our data sources

ICEGATE duty calculator — import-duty rates

The effective import-duty stack per 8-digit code — Basic Customs Duty (BCD), AIDC, Social Welfare Surcharge, IGST and Compensation Cess — computed on a ₹100 assessable value. These are effective rates as applied by Indian Customs, so they already incorporate Budget 2026 and any standing exemption notification — not just the headline First Schedule rate.

Pulled May 13, 2026·icegate.gov.in

CBIC rate notification — GST / IGST

The GST/IGST rate for each tariff item, resolved from the schedules and exemption entries of the integrated-tax rate notification currently in force.

Notification 9/2025-Integrated Tax (Rate) — effective 22.09.2025 — in force as at May 13, 2026·cbic.gov.in

CBIC Customs Tariff — First Schedule (nomenclature)

The code numbers themselves: every HSN heading, subheading and 8-digit tariff item, with its description and unit of measure. Tariff-item numbering and wording change only with a Finance Act, so this stream moves far more slowly than the rates above.

Indian Customs Tariff — First Schedule (as on 30.06.2025, CBIC)·cbic.gov.in

ITC-MACMAP preferential (FTA) rates

Free-Trade-Agreement preferential duty rates by partner country, used for the landed-cost and 'where to source' comparisons.

ITC Market Access Map·macmap.org

How the import-duty stack is computed

Every per-code page shows the effective duty on an assessable value (CIF) of ₹100, applied in the order Indian Customs uses:

BCD — Basic Customs Duty, the headline rate from the First Schedule, charged on the assessable value.
AIDC — Agriculture Infrastructure & Development Cess, charged on the BCD.
SWS — Social Welfare Surcharge, charged on (BCD + AIDC).
IGST — Integrated GST, charged on (CIF + BCD + AIDC + SWS).
Compensation Cess — where applicable, on top of IGST for select goods.
Total effective duty — the sum of the above, shown as a percentage of the ₹100 CIF value.

The GST/IGST rate shown is the base rate for the heading; the exact rate can vary with a product’s composition, form or end use under the relevant rate notifications.

How often it’s updated

The three streams above are refreshed on their own cadences, so they carry different dates — and the duty figures are the most current of them:

Import-duty rates — re-pulled from ICEGATE after each Union Budget and after any interim rate notification. The figures on the site were pulled May 13, 2026 and reflect Budget 2026.
GST / IGST rates — tracked against the integrated-tax rate notification in force, presently Notification 9/2025-Integrated Tax (Rate) — effective 22.09.2025, verified current as at May 13, 2026.
Nomenclature — the code numbers and descriptions, presently Indian Customs Tariff — First Schedule (as on 30.06.2025, CBIC). These change only with a Finance Act, so this is the slowest-moving stream; an older edition here does not mean the rates above are stale.

Every page carries a “Last reviewed” date reflecting the most recent of these refreshes.

Accuracy & limitations

This tool is a free reference, not legal or tax advice. Rates and classifications can change through CBIC/DGFT notifications between reviews, and the correct code for a specific consignment depends on its exact description and end use. Always verify against the latest official notification before filing a Bill of Entry.