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September 19, 2025

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GST Rates & HSN Code for Synthetic Organic Tanning Substances (3202)

Why is one tanning preparation taxed at 5% GST while another is at 18%? The answer lies in how each product is classified under HSN 3202. The difference usually comes down to HSN classification. Get the classification wrong, and it’s not just a minor fix; you could be staring at penalties, audits, and costs you didn’t plan for.

Chapter 32, HSN 3202, covers synthetic organic tanning substances, along with inorganic and enzymatic preparations used in leather processing. This guide explains GST rates for each subheading, how tax is split between CGST, SGST, and IGST, the reporting rules linked to turnover, and the impact on export and imports. The aim is simple help you classify goods correctly and avoid expensive mistakes.

Overview of HSN Code 3202

HSN stands for Harmonized System of Nomenclature. It’s just a coding method to classify goods for tax purposes. In GST, it makes sure the same product gets the same rate everywhere. Without it, one item could be taxed differently in different places.

Chapter 32 covers tanning and dyeing extracts. This includes the materials, the leather and chemical industries use. Under this chapter, heading 3202 is where synthetic organic tanning substances, inorganic agents, enzymatic pre-tanning preparations, and related materials are classified. Under this chapter, heading 3202 specifically covers:

‍Synthetic organic tanning substances

Inorganic tanning substances

Tanning preparations (whether or not they contain natural tannins)

Enzymatic preparations for pre-tanning

Classifying products correctly matters because each subcategory has its own GST rate. Once you know where your product fits, you can charge the right tax and avoid mistakes that usually end up costing more than the tax itself.

GST Rates for HSN 3202

GST classification isn’t random; it’s backed by official notifications like Notification No. 05/2020 (16th Oct 2020), which reaffirmed the tax slabs for tanning substances under Chapter 32. For HSN 3202, the GST rates are split between 5% and 18%, depending on the exact subcategory.

Here’s a clear snapshot:

HSN Code	Description	GST Rates	CESS	Effective Date
32021000	Synthetic organic tanning substances	18%	0%	01/07/2017
32029010	Inorganic tanning substances	18%	0%	01/07/2017
32029020	Tanning preparations (with or without natural tannins)	18%	0%	01/07/2017
32029030	Enzymatic preparations for pre-tanning	5%	0%	01/07/2017
32029090	Other tanning substances	18%	0%	01/07/2017

The only exception is subcode 32029030, enzymatic preparations, which are taxed at 5%. Every other category, whether synthetic, inorganic, or general tanning preparations, falls under the 18% rate.

This difference often trips up businesses. Classify the enzymatic pre-tanning agents wrongly as general tanning preparations, and you’ll be paying nearly 13% extra tax, a costly error during audits.

Breakdown of Subheadings

Each subheading under HSN 3202 has its own place in the leather and chemical supply chain.

Understanding them isn’t just about tax; it’s about knowing what exactly is being traded.

32021000 – Synthetic organic tanning substances

These are lab-made chemicals designed to replace or support natural tannins. They’re widely used for consistent results in leather processing and attract an 18% GST rate.

32029010 – Inorganic tanning substances

Chromium salts and aluminium salts are often used at the very beginning of the tanning process.

32029020 – Tanning preparations

This group includes both natural and synthetic blends used to treat hides. Whether or not they contain natural tannins, they sit under the 18% slab.

32029030 – Enzymatic preparations for pre-tanning

A special case. Enzymes are used to clean and soften hides before tanning. Because they’re less harsh than heavy chemicals, they’re placed under a 5% GST rate to promote wider adoption.

32029090 – Other tanning materials

This subcode covers tanning substances that don’t fit into the other categories. They’re taxed at 18% GST. The right subcode makes sure your tax is applied correctly and your records hold up during an audit.

GST Components: CGST, SGST, & IGST

An 18% GST rate on tanning substances isn’t one flat charge. For sales within the same state, it’s split into 9% CGST and 9% SGST. For sales across states, it’s applied as 18% IGST.

If you sell tanning chemicals worth ₹1,00,000 within your state, you’ll pay ₹9,000 as CGST and ₹9,000 as SGST. Send that same order to another state, and the tax changes to ₹18,000 IGST, no split involved.

The split matters. It changes how your invoices are written, how you claim input tax credit, and whether your books pass a review.

Compliance & Reporting Requirements

Getting the HSN code right is step one. The next step is making sure it appears correctly on every invoice.

The rule depends on turnover:

For invoices exceeding ₹5 crore, you must use 6-8 digit HSN codes on all invoices.

For amounts up to ₹5 crore, 4-digit HSN codes are sufficient.

These details have to go in your GSTR-1 filings. If they’re wrong, you could lose input tax credits or trigger questions during audits. Correct HSN usage keeps your filings clean and your compliance record safe.

Exports & Imports Implications

HSN codes aren’t just a domestic compliance checkbox; they’re critical in international trade. Exports documents such as the Certificate of Origin (COO), SAFTA certificates, and APEDA registrations all need the correct HSN code to be accepted. A mismatch here can delay shipments or block benefits.

Certain tanning codes can appear on the negative list, which means no export incentives or duty relief apply. For imports, HSN 3202 is used as well, and IGST is charged at clearance. The importer can later claim input tax credit, provided the code and documentation align perfectly.

Conclusion

You’ve now seen how HSN 3202 splits tanning substances between 5% and 18% slabs and how a small mistake in classification can create outsized tax headaches.

Use the right subheading 32021000, 32029010, 32029020, 32029030, or 32029090 to ensure the GST rate is applied correctly. Only enzymatic preparations are at 5%. Everything else stays at 18%.

Put the right HSN digits on your invoices depending on turnover. Before filing, check the CBIC portal so you don’t end up using an outdated rate.

That’s where Swipe comes in. It keeps your records clean, applies the right rate, and makes GST filing less of a headache.

FAQs

What is HSN Code 3202 in GST?

It’s the code used for tanning materials. Under this heading, you’ll find synthetic organic tanning substances, inorganic tanning agents, general tanning preparations, and enzymatic products used in leather work.

What is the GST rate for enzymatic preparations (32029030)?

These fall under the 5% slab. Everything else in this group is a synthetic, inorganic, or mixed tanning preparation and is taxed at 18%.

Is there a difference between the HS and HSN code?

Yes. HS is the global harmonized system, while HSN is India’s adaptation with extra digits for domestic classification.

Do exporters need to use HSN codes?

Absolutely. Export documents like COO or SAFTA certificates require HSN codes, and misclassification can block benefits or delay clearances.

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