---
title: "HSN Code for Potassium Perfluorooctane Sulphonate | HSN 29043400 GST Rate"
description: "Find HSN and GST Rates for 29043400 related to Potassium Perfluorooctane Sulphonate with BUSY Accounting - The reliable source for HSN and GST details in India."
canonical: "https://busy.in/hsn/hsn-29043400/"
---

# HSN Code 29043400: Potassium Perfluorooctane Sulphonate

- [Section 06: Guide to HSN Section 06](https://busy.in/hsn/section-06/)
- [Chapter 29: Organic Chemicals](https://busy.in/hsn/chapter-29/)
- [Sub-chapter 2904: Hydrocarbon derivatives](https://busy.in/hsn/sub-chapter-2904/)

## GST rates

| Description | CGST | SGST | IGST | CESS |
| --- | --- | --- | --- | --- |
| Perfluorooctane sulphonic acid, its salts and perfluorooctane sulphonyl fluoride: Potassium perfluorooctane sulphonate | 9% | 9% | 18% | 0% |

## Frequently asked questions

### What products are classified under HSN 29043400 ?

It includes Potassium Perfluorooctane Sulphonate

### How should mixed supplies be billed when Potassium Perfluorooctane Sulphonate is sold with other items?

Use separate invoice lines per HSN and apply the correct rate per line (e.g., Varies for Potassium Perfluorooctane Sulphonate; Nil for exempt items if applicable).

### Any common misclassification issue with Potassium Perfluorooctane Sulphonate?

Use the exact HSN and describe the form/grade. For multi‑line invoices, apply the rate per line to avoid wrong tax collection.

### Do e‑way bill and e‑invoice apply for Potassium Perfluorooctane Sulphonate?

e‑Way bill is needed above ₹50,000 consignment value (subject to exemptions). e‑Invoicing is turnover‑based (presently AATO > ₹5 crore) for B2B supplies.

### Does packaging or labelling change the GST for Potassium Perfluorooctane Sulphonate?

For food/agri items, GST can be 5% when not fresh/chilled and sold as pre‑packaged & labelled; otherwise often Nil. For non‑food items, rates depend on the specific sub‑heading.

### Can we claim ITC on inputs used to trade Potassium Perfluorooctane Sulphonate?

If your outward supply is taxable, eligible ITC is available subject to general restrictions. For exempt/Nil supplies, reverse credit per Rule 42.