---
title: "HSN Code for Calcium oxalate | HSN 29171120 GST Rate"
description: "Find HSN and GST Rates for 29171120 related to Calcium oxalate with BUSY Accounting - The reliable source for HSN and GST details in India."
canonical: "https://busy.in/hsn/hsn-29171120/"
---

# HSN Code 29171120: Calcium oxalate

- [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 2917: Polycarboxylic Acids](https://busy.in/hsn/sub-chapter-2917/)

## GST rates

| Description | CGST | SGST | IGST | CESS |
| --- | --- | --- | --- | --- |
| Acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives:Oxalic acid, its salts and esters : Calcium oxalate | 9% | 9% | 18% | 0% |

## Frequently asked questions

### What products are classified under HSN 29171120 ?

It includes Calcium oxalate

### How much GST applies to Calcium oxalate?

Under HSN 29171120, Calcium oxalate attracts Varies when sold in taxable form. Describe the exact form on the invoice.

### Any common misclassification issue with Calcium oxalate?

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

### Does packaging or labelling change the GST for Calcium oxalate?

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.

### How should mixed supplies be billed when Calcium oxalate is sold with other items?

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

### Can we claim ITC on inputs used to trade Calcium oxalate?

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