New

Swipe

August 23, 2025

Blog |

Explore GST

Basics of GST

GST Rates and HSN Code 306 for Crustaceans

The Goods and Services Tax (GST) regime established India-wide tax uniformity throughout the entire country. A vital requirement for GST compliance depends on the utilization of HSN codes. Knowledge of both HSN code 0306 and crustacean-related GST rates matters strongly for businesses operating in seafood or crustacean sectors. This complete guide contains all the essentials and details about compliance that will make you ready for tax filing and business operation needs.

What is an HSN Code?

An internationally accepted product classification code structure functions as the Harmonized System of Nomenclature (HSN). The Indian administration started implementing HSN for product classification standardization, which simultaneously made GST processing simpler and audit processes more efficient.

Each HSN code consists of 4, 6, or 8 digits in its standard format.
The system consists of two chapters followed by two headings, while zero to four digits afterwards designate sub-headings and successive classification categories.

HSN Code 0306: Crustaceans

Under HSN code 0306, all crustacean presentations from fresh to dried and between live to salted or brined constitute classifications.

Products Covered Under HSN Code 0306:

Shrimps and prawns

Lobsters

Crabs

Langoustines

Crawfish

Crustacean meat

Crustaceans in brine or dried

Cooked crustaceans (boiled, steamed, etc.)

Sub-classifications under HSN 0306:

HSN Code	Product Description
30611	Rock lobster and other sea crawfish
30612	Lobsters (Homarus spp.)
30613	Shrimps and prawns
30614	Crabs
30619	Other crustaceans

GST Rates Applicable on Crustaceans (HSN 0306)

GST on crustaceans varies based on the product’s processing stage (live, frozen, dried, etc.).

Crustacean Product	HSN Code	GST Rate
Live crustaceans	306	Nil
Fresh or chilled	306	5%
Frozen, dried, or salted	306	5%
Cooked by steaming or boiling	306	5%
Crustacean meat (frozen or processed)	306	5%
Crustaceans are put up in unit containers bearing the brand name	306	5% or 12%, depending on branding and packaging

Note: If the seafood is unbranded and not in a unit container, it may attract a Nil or 5% GST. However, once branded or packaged, it is likely to attract a 5% or 12% rate depending on additional value-added processes.

GST Notifications Relevant to HSN Code 0306

The GST Council released multiple notifications through which they have revised the tax rates applied to seafood products:

The Seafood product tax rates receive their definition from Notification No. 1/2017 – Central Tax (Rate) dated 28th June 2017.

Notification No. 2/2017 – Integrated Tax (Rate)

The GST Council provides continuous updates about seafood rate optimization to the public.

The budget season and GST council schedule require special attention because new circulars may be issued, resulting in changes to the seafood product rates.

How to Identify the Right GST Rate for Your Product

Step-by-Step:

Establish the category of your crustacean product by confirming if it remains fresh or alive, if its state is frozen, or if it requires cooking before preservation.

Check the packaging status: Is it sold in bulk or unit containers? Is it branded?

Match it with the correct HSN sub-heading: For example, fresh shrimp = HSN 30613.

Apply the correct GST rate from the latest GST rate schedule.

Export and Import Considerations for Crustaceans (HSN 0306)

As a leading producer, India sends shrimp and prawns to external markets. International commercial trading relies on the HSN code 0306 for its essential functions:

Filing Shipping Bills

Claiming Export Incentives

Import Duty Assessments

Customs Clearance

Key Points:

The GST tax classification for live/frozen crustaceans exported from India is zero.

The GST system allows Input Tax Credit (ITC) availability for purchases made with exported merchandise.

Filing of LUT (Letter of Undertaking) can help exporters avoid paying GST upfront.

Challenges Faced by Seafood Businesses

Classification Confusion: Misclassification under the wrong HSN code may lead to penalties.

Packaging & Branding Dilemmas: A simple packaging change can move your product to a higher tax slab.

Evolving Regulations: Frequent changes by the GST Council can be hard to keep up with.

Input Tax Credit Blockages: Errors in classification may result in loss of ITC eligibility.

Pro Tips for GST Compliance in the Seafood Industry

Always consult the latest GST rate notifications.

Maintain clear records of product processing stages.

Mention the correct HSN code and GST rate on invoices.

For exporters, always file LUT and claim ITC judiciously.

Seek expert consultation if you’re dealing with multiple seafood categories or exports.

Conclusion

All businesses involved with fishing and seafood trading, including exporting, need to understand both the GST rate and HSN Code 0306 for crustaceans. The proper implementation of HSN codes results in cost-effective GST filing processes, which also cuts down penalties and boosts overall business profits.

Reach optimal results by seeking professional consultation from experts in GST taxation who specialize mostly in processed seafood products.

SWIPE provides Easy Accounting Software for food manufacturers – Click to Learn More!

FAQs

1. What is HSN Code 0306 used for in GST?‍

Under HSN Code 0306, tax authorities separate crustaceans, which include prawns together with lobsters and crabs, as well as similar seafood items, for GST taxation purposes.