HSN Code 28092020: Polyphosphoric Acid

HSN Code 28092020 represents Polyphosphoric Acid under GST classification. This code helps businesses identify Polyphosphoric Acid correctly for billing, taxation, and trade. With HSN Code 28092020, companies can avoid errors in invoices, simplify compliance, and enable hassle-free import/export of Polyphosphoric Acid.

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Chapter Number	Chapter Name	Sub Chapter Number	Sub Chapter Name	Description of Goods	CGST (%)	SGST (%)	IGST (%)	CESS (%)
28	Inorganic chemicals, organic or inorganic compounds of precious metals,of rare-earth metals, of radioactive elements or of isotopes	2809	Diphosphorus pentaoxide; phosphoric acid;polyphosphoric acids, whether or not chemically defined	INORGANIC ACIDS AND INORGANIC OXYGEN COMPOUNDS OF NON-METALS : Phosphoric acid and polyphosphoric acids : Polyphosphoric acids	9%	9%	18%	0%

Description of goods

INORGANIC ACIDS AND INORGANIC OXYGEN COMPOUNDS OF NON-METALS : Phosphoric acid and polyphosphoric acids : Polyphosphoric acids

Chapter

28 – Inorganic chemicals, organic or inorganic compounds of precious metals,of rare-earth metals, of radioactive elements or of isotopes

Sub Chapter

2809 – Diphosphorus pentaoxide; phosphoric acid;polyphosphoric acids, whether or not chemically defined

CGST 9%

SGST 9%

IGST 18%

CESS 0%

HSN Code	Description
28091000	INORGANIC ACIDS AND INORGANIC OXYGEN COMPOUNDS OF NON-METALS : Diphosphorus pentaoxide
28092010	INORGANIC ACIDS AND INORGANIC OXYGEN COMPOUNDS OF NON-METALS : Phosphoric acid and polyphosphoric acids : Phosporic acid (Fertilizer Grade)
28092010	INORGANIC ACIDS AND INORGANIC OXYGEN COMPOUNDS OF NON-METALS : Phosphoric acid and polyphosphoric acids : Phosporic acid

HSN Code 28091000

INORGANIC ACIDS AND INORGANIC OXYGEN COMPOUNDS OF NON-METALS : Diphosphorus pentaoxide

HSN Code 28092010

INORGANIC ACIDS AND INORGANIC OXYGEN COMPOUNDS OF NON-METALS : Phosphoric acid and polyphosphoric acids : Phosporic acid (Fertilizer Grade)

HSN Code 28092010

INORGANIC ACIDS AND INORGANIC OXYGEN COMPOUNDS OF NON-METALS : Phosphoric acid and polyphosphoric acids : Phosporic acid

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What products are classified under HSN 28092020 ?

It includes Polyphosphoric Acid

How much GST applies to Polyphosphoric Acid?

Under HSN 28092020, Polyphosphoric Acid attracts Varies when sold in taxable form. Describe the exact form on the invoice.

How should mixed supplies be billed when Polyphosphoric Acid is sold with other items?

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

Can we claim ITC on inputs used to trade Polyphosphoric Acid?

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

Do e‑way bill and e‑invoice apply for Polyphosphoric Acid?

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 Polyphosphoric Acid?

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.

Important Disclaimer

The above does not constitute professional advice or a formal recommendation. We recommend consulting a professional tax consultant before acting on the information contained in this piece of content.

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