HSN Code 8481: Product Classification, GST Rate & Business Filing Guide

Tallysolutions

Tally Solutions

Apr 30, 2026

30 second summary | 8481 HSN Code under the Harmonised System of Nomenclature (HSN) covers taps, cocks, valves, pressure-reducing valves, solenoid valves and related parts. Most goods under this code are subject to 18% GST. Correct HSN reporting on invoices and GST returns helps businesses maintain compliance, avoid mismatches and improve billing accuracy.

8481 HSN Code classifies taps, cocks, valves and similar flow-control devices used in pipes, tanks, boilers and vessels under Chapter 84 of the HSN, which covers machinery and mechanical appliances. It is important for GST classification, invoicing and filing because it determines the correct tax rate and ensures accurate compliance in business transactions involving industrial and domestic valve systems.

Classification under HSN Code 8481

HSN 8481 sits at the 4-digit heading level within Chapter 84. Below this heading, India's customs and GST system uses 6-digit sub-headings and 8-digit tariff codes to distinguish between different types of valves and appliances.

Here are the details:

Description

HSN

Taps, cocks, valves and similar flow-control appliances for pipes, boiler shells, tanks, vats or similar systems (including pressure-reducing and thermostatically controlled valves)

8481

Pressure-reducing valves used to control and lower fluid or gas pressure

84811000

Valves designed for oleohydraulic or pneumatic transmission systems

84812000

Check valves / non-return valves that allow one-way flow only

84813000

Safety valves or relief valves used to release excess pressure

84814000

Other valves, taps, cocks and related appliances not specifically classified elsewhere

848180

Taps, cocks and similar appliances made of iron or steel

84818010

Taps, cocks and similar appliances made of non-ferrous metals

84818020

Industrial valves (excluding pressure-reducing, thermostatic, safety and relief valves)

84818030

Inner tube valves for bicycles

84818041

Other inner tube valves for vehicles or general use

84818049

Expansion valves and solenoid valves for refrigeration or air-conditioning equipment

84818050

Other miscellaneous taps, cocks, valves and similar appliances

84818090

Parts of taps, cocks, valves and similar appliances

848190

Parts specifically for bicycle valves

84819010

Other parts of taps, cocks, valves and similar appliances

84819090

GST rate applicable on HSN Code 8481

HSN Code 8481 generally attracts an 18% GST rate across most sub-headings and tariff items. The tax is applied as follows:

  • Intra-state supply (within the same state): 9% CGST + 9% SGST
  • Inter-state supply (across states) or imports: 18% IGST

Following the 56th GST Council meeting, the GST slab structure was revised under the proposed "GST 2.0" framework. Despite these changes, goods under HSN 8481 remain in the 18% slab, with no specific rate reduction announced for valve and flow-control products.

Customs duty note: For import and export transactions, Basic Customs Duty (BCD) on HSN 8481 items may vary depending on the exact product classification and applicable trade notifications. This should be verified through the latest CBIC customs tariff schedules.

Business filing requirements: HSN Code reporting rules

As per CGST Notification No. 78/2020 dated 15 October 2020, the number of HSN digits required on invoices and in GSTR-1 depends on a business's Aggregate Annual Turnover (AATO):

  • Businesses with AATO up to ₹5 crore: Must report 4-digit HSN codes on all B2B invoices. For B2C invoices, HSN reporting is optional.
  • Businesses with AATO above ₹5 crore: Must mandatorily report 6-digit or 8-digit HSN codes on all invoices, both B2B and B2C. Since most industrial valve suppliers and manufacturers fall in this category, the use of the full 8-digit HSN code is generally required.

Conclusion

Correct HSN selection is essential for accurate GST compliance, not just a filing requirement. It directly impacts invoice accuracy, smooth return filing and reduces the risk of scrutiny or notices. For businesses dealing in valves and related products, regularly reviewing item masters, vendor codes and product descriptions helps prevent classification errors as inventory grows. At the same time, an internal checklist for new SKUs ensures consistency from the start.

To maintain this accuracy at scale, businesses can rely on TallyPrime, which helps standardise billing, manage item masters and improve GST reporting accuracy as operations expand.

FAQs

Yes. HSN 8481 covers both manually operated valves (such as hand taps or gate valves) and automatic valves (such as solenoid, thermostatic or pressure-control valves), provided their primary function is controlling the flow, pressure or direction of liquids or gases.

Exports are treated as zero-rated supplies under GST. Exporters may ship under LUT without paying IGST (subject to conditions) or pay IGST and later claim a refund, as per applicable GST provisions.

Yes. Incorrect HSN classification may result in notices, tax demands, interest or penalties if it leads to incorrect tax reporting or compliance gaps.

Businesses should evaluate technical specifications, valve type, automation features, operating mechanism, material, catalogue descriptions and customs tariff notes to ensure correct classification.

Yes. Registered businesses can generally claim ITC on GST paid for HSN 8481 goods used for business purposes, subject to eligibility conditions under the CGST Act, valid tax invoices, supplier compliance and blocked credit rules.

Published on April 30, 2026

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