West Bengal AAR Clarifies Laundry Soap Not Eligible for 5% GST Rate; 18% GST Applies Under Revised Notification

Background and Application
The applicant, engaged in the manufacture of laundry soap bars weighing less than 500 grams and classifiable under HSN 34011942, sought an advance ruling from the West Bengal Authority for Advance Ruling (AAR) regarding the applicable GST rate on its products. The applicant argued that its laundry soap, with Total Fatty Matter (TFM) exceeding 60%, should be classified as toilet soap under Entry No. 251 of Schedule I to Notification No. 9/2025–Central Tax (Rate), thereby attracting a concessional GST rate of 5%. The applicant contended that both toilet and laundry soaps share similar manufacturing processes, chemical composition, and are often used interchangeably by consumers, especially in rural areas.

Applicant’s Submissions
The applicant relied on BIS standards, which classify soaps based on TFM content, and asserted that its product meets the technical parameters for toilet soap. It further argued that the absence of a statutory definition for ‘toilet soap’ under GST law necessitates reliance on trade parlance and BIS standards. The applicant also cited judicial precedents supporting classification based on common understanding and market practice, and submitted that imposing a higher tax rate on laundry soap would defeat the legislative intent of making essential hygiene products affordable.

Authority’s Observations and Reasoning
The AAR undertook a detailed analysis of the relevant GST notifications, BIS standards, and the Customs Tariff Act, 1975. The Authority noted that Notification No. 01/2017 – Central Tax (Rate), as amended by Notification No. 09/2025, distinguishes between ‘toilet soap (other than industrial soap)’ under Serial No. 251 of Schedule I (taxable at 5%) and ‘soap; organic surface-active products and preparations for use as soap, other than toilet soap’ under Serial No. 66 of Schedule II (taxable at 18%).

The AAR examined the BIS specifications for both toilet soap (IS 2888:2004) and laundry soap (IS 285:1992), highlighting differences in chemical composition, intended use, and technical requirements. The Authority emphasized that, despite some similarities in TFM content, toilet soap and laundry soap are distinct products both chemically and commercially. The Authority rejected the applicant’s argument that consumer usage patterns or trade parlance could override the clear tariff and technical distinctions.

Further, the AAR referred to the Customs Tariff Act, 1975, which classifies toilet soap under sub-heading 340111 and laundry soap under tariff item 34011942 (for bars less than 500 grams). The Authority concluded that laundry soap is not includible within the category of toilet soap for GST purposes.

Ruling and Legal Principle
The West Bengal AAR held that laundry soap, even if manufactured with high TFM and similar processes as toilet soap, is specifically classified under tariff item 34011942 and does not qualify for the concessional 5% GST rate applicable to toilet soap. Instead, laundry soap is taxable at 9% CGST plus 9% SGST (total 18%) under Serial No. 66 of Schedule II to Notification No. 01/2017 – Central Tax (Rate), as amended by Notification No. 09/2025.

Conclusion
This ruling clarifies that the GST rate applicable to laundry soap is determined by its specific tariff classification and not by its chemical composition or consumer usage. The Authority’s decision underscores the importance of adhering to statutory and tariff-based distinctions in GST classification, and provides clear guidance for manufacturers and suppliers regarding the applicable tax rates for different categories of soap products.