HSN Code 28092010: Phosphoric Acid

HSN Code 28092010 represents Phosphoric Acid under GST classification. This code helps businesses identify Phosphoric Acid correctly for billing, taxation, and trade. With HSN Code 28092010, companies can avoid errors in invoices, simplify compliance, and enable hassle-free import/export of Phosphoric 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 : Phosporic acid (Fertilizer Grade)	2.5%	2.5%	5%	0%
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 : Phosporic acid	9%	9%	18%	0%

Description of goods

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

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 2.5%

SGST 2.5%

IGST 5%

CESS 0%

Description of goods

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

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
28092020	INORGANIC ACIDS AND INORGANIC OXYGEN COMPOUNDS OF NON-METALS : Phosphoric acid and polyphosphoric acids : Polyphosphoric acids

HSN Code 28091000

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

HSN Code 28092020

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

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What products are classified under HSN 28092010 ?

It includes Phosphoric Acid

Any common misclassification issue with Phosphoric Acid?

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 Phosphoric 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.

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

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

Does packaging or labelling change the GST for Phosphoric 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.

How much GST applies to Phosphoric Acid?

Under HSN 28092010, Phosphoric Acid attracts Varies when sold in taxable form. Describe the exact form on the invoice.

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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