HSN Codes · Chapter 31: Fertilisers

HSN Code 310530

Diammonium hydrogen ortho phosphate (diammonium phosphate)

Typical GST rate

Varies

Depends on sub-classification

Type

Goods

HSN classification

Code level

6-digit

Sub-heading

Reading code 310530

The first two digits (31) place this code in chapter 31 — Fertilisers. Heading 3105 groups the product family, and the remaining digits pin down this specific 6-digit classification. Remember: you can never invent a shorter code by truncating a longer one — only codes that exist in the official tariff are valid.

Mineral and chemical fertilisers — nitrogenous, phosphatic, potassic, and mixed — mostly at the concessional 5% rate.

Parent heading

3105 — Mineral or chemical fertilisers containing two or three of the fertilising elements nitrogen, phosphorus and potassium; other fertilisers; goods of this chapter in tablets or similar forms or in packages of a gross weight not exceeding 10 kg

More specific codes under 310530

  • 31053000 — Diammonium hydrogen ortho phosphate(diammonium phosphate)

Related codes in heading 3105

  • 310510 — Goods of this chapter in tablets or similar forms or in packages of a gross weight not exceeding 10 kg
  • 310520 — Mineral or chemical fertilisers containing the three fertilising elements nitrogen, phosphorus and potassium
  • 310540 — Ammonium dihydrogen ortho phosphate (monoammonium phosphate) and mixtures thereof with diammonium hydrogen orthophosphate (diammonium phosphate)
  • 310551 — Mineral or chemical fertilisers containing two or three of the fertilising elements nitrogen, phosphorus and potassium; other fertilisers; goods of this chapter in tablets or similar forms or in packages of a gross weight not exceeding 10 kg — containing nitrates and phosphates
  • 310559 — Mineral or chemical fertilisers containing two or three of the fertilising elements nitrogen, phosphorus and potassium; other fertilisers; goods of this chapter in tablets or similar forms or in packages of a gross weight not exceeding 10 kg — other
  • 310560 — Mineral or chemical fertilisers containing the two fertilising elements phosphorus and potassium
  • 310590 — Mineral or chemical fertilisers containing two or three of the fertilising elements nitrogen, phosphorus and potassium; other fertilisers; goods of this chapter in tablets or similar forms or in packages of a gross weight not exceeding 10 kg — other

Frequently asked questions

The GST rate under 310530 depends on the specific item and applicable notifications. Check the classification with our HSN code finder and confirm the rate before invoicing.
Businesses with annual aggregate turnover of ₹5 crore or more must report at least 6 digits on e-invoices and e-way bills; below ₹5 crore, 4 digits is the B2B minimum. Exports require 8 digits.
Every line item on a GST tax invoice carries its HSN code alongside the description, quantity, taxable value, and tax breakup. The code also flows into your GSTR-1 HSN summary and e-way bills.

Related tools & guides

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