HSN Code 100400

Cereals — oats — oats

Typical GST rate

Varies

Depends on sub-classification

Type

Goods

HSN classification

Code level

6-digit

Sub-heading

Reading code 100400

The first two digits (10) place this code in chapter 10 — Cereals. Heading 1004 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.

Wheat, rice, maize, barley, and other cereals. Unbranded cereals are exempt; pre-packaged and labelled cereals attract 5% GST.

Parent heading

1004 — Cereals — oats

More specific codes under 100400

10040010 — Cereals — oats — oats — oats oats : of seed quality
10040090 — Cereals — oats — oats — oats oats : other

Related codes in heading 1004

100410 — Cereals — oats — seed
100490 — Cereals — oats — other

Frequently asked questions

The GST rate under 100400 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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