Laundry Soap vs Toilet Soap Under GST: How AAR West Bengal Drew the Line

The West Bengal Authority for Advance Ruling in In re Swadeshi Soap Industries (GST AAR West Bangal) has clarified an important classification issue under GST: whether laundry soap bars weighing less than 500 grams and falling under tariff item 34011942 can avail the concessional 5% GST applicable to “toilet soap”, or whether they are liable to 18% GST as “other soaps”.

This ruling is especially relevant for manufacturers and suppliers of low-priced soap bars used widely in rural and lower-income segments, as it directly impacts pricing, classification, and compliance.

Below is a structured summary and analysis of the ruling, the arguments raised, and the conclusions reached by the Authority.

Background of the Application

Business Activity of the Applicant

  • The applicant is engaged in manufacturing laundry soap in bar form.
  • Each bar:
    • Weighs less than 500 grams, and
    • Is priced below Rs. 20 per piece.
  • The product is classified by the applicant under HSN 34011942 and is marketed as a laundry soap meant for washing clothes and laundry purposes.

Issues Raised for Advance Ruling

The assessee approached the Authority under Section 97(1) of the GST Act and sought an advance ruling on:

  1. Whether the 5% GST rate notified under Notification No. 09/2025–Central Tax (Rate) dated 17.09.2025, effective from 22.09.2025, applies to laundry soap bars weighing less than 500 grams under HSN 34011942.
  2. What is the correct GST rate applicable to these laundry soap bars manufactured and supplied by the assessee?

The questions were found to be covered under Section 97(2)(a) and Section 97(2)(b) of the GST Act. There was no parallel proceeding pending before any authority, and the jurisdictional officer raised no objection to admission. The application was accordingly admitted.

Relevant GST Notification Entries

The assessee relied on Notification No. 01/2017–Central Tax (Rate) dated 28.06.2017, as amended by Notification No. 09/2025–Central Tax (Rate) dated 17.09.2025. The key entries considered were:

Schedule I – 2.5% CGST (Total 5% GST)

  • Serial No. 251
    • Heading: 3401
    • Description:

      Toilet Soap (other than industrial soap) in the form of bars, cakes, moulded pieces or shapes

Schedule II – 9% CGST (Total 18% GST)

  • Serial No. 66
    • Heading: 3401
    • Description:

      Soap; organic surface-active products and preparations for use as soap, in the form of cakes, moulded pieces or shapes, whether or not containing soap [other than toilet soap in the form of bars, cakes, moulded pieces or shapes]; organic surface active products and preparations for washing the skin, in the form of liquid or cream and put up for retail sale, whether or not containing soap; paper, wadding, felt and nonwovens, impregnated, coated or covered with soap or detergent

On a plain reading, toilet soap in solid bar form falls in Serial No. 251 (5% GST), while all other soaps of heading 3401 (excluding such toilet soaps) fall in Serial No. 66 (18% GST).

The core issue before the AAR was whether laundry soap can be treated as “toilet soap” for the purpose of Serial No. 251.

Key Submissions by the Assessee

1. Chemical Nature and TFM-Based Classification

  • Soap is produced by saponification, i.e., reaction between alkali (like caustic soda) and fats/oils, yielding soap and glycerine.
  • The assessee emphasised the parameter of Total Fatty Matter (TFM), a key factor under Bureau of Indian Standards (BIS) specifications.
  • BIS standards referred:
    • IS 2888:2004 – Specification for toilet soaps
    • IS 13498:2020 – Specification for bathing bars
  • According to the assessee:
    • Soaps with TFM above 60% qualify as toilet soaps under these BIS norms.
    • Bathing bars typically have around 40% TFM, lower than toilet soaps.
  • The assessee produced a test report showing TFM of 62% in its product and argued that:
    • Since its soap bars have TFM beyond 60%, they technically meet the BIS criteria of toilet soap.
    • Therefore, even if marketed as “laundry soap”, they should be treated as “toilet soap” for GST purposes.

2. Manufacturing Process and Raw Materials