GST Rate Finder: How to Search and Verify GST Rates

You can use the GST portal's Search HSN Code facility to locate technical descriptions and related classification information when checking products for business purchases or sales.

The published GSTN guidance gives this route:

Services > User Services > Search HSN Code

GSTN's guidance states that users can search by HSN or description and access the facility before or after login. For rate verification, check the relevant notifications and amendments through the Central Board of Indirect Taxes and Customs (CBIC).

No. You should check a search result against the applicable law and the actual goods or services before using it to price a sale, record a purchase, or issue an invoice.

GSTN's revamped HSN search uses descriptions drawn from the e-invoice database and is intended to assist taxpayers. The search output is not a legally binding classification decision. This matters when similar products have different tariff descriptions.

• Material or composition
• Function or intended use
• Processing or packaging
• Value thresholds
• Recipient or use conditions
• Bundled or composite supplies
• Effective date of the applicable entry

If classification remains uncertain, obtain appropriate professional advice before changing recurring billing records.

A GST rate finder can return different treatments depending on the classification and legal entry that applies to the goods or services your business handles.

• 5%: Check the exact entry and conditions.
• 18%: Check the exact entry and conditions.
• 40%: Confirm whether the supply falls within the selected special-rate entry.
• Nil or exempt: Verify the legal basis, scope, and conditions.
• Another rate: Check the specific provision, notification, or scheme.

The broad September 2025 rate reforms took effect from 22 September 2025, subject to specified exceptions. Do not use an old 0% to 28% chart as a universal current guide.

HSN codes help classify goods, while service classification codes identify services. The code helps you locate the relevant GST entry, but it does not establish the rate by itself.

A four-digit HSN heading can contain more detailed tariff classifications. The product description must therefore match the selected code. For services, assess the activity actually supplied rather than relying on a broad label such as 'support' or 'consulting'.

• Identify what exactly is supplied.
• Classify the goods or service.
• Match the classification with the relevant notification entry.
• Check conditions or exclusions.
• Confirm the effective date applicable to the transaction.

Not always. A finder can display combined GST, CGST alone, or separate tax components, so you should identify what the displayed percentage represents.

For an ordinary taxable supply carrying an assumed combined GST rate of 18%:

• Intra-State supply: 9% CGST + 9% SGST.
• Intra-UT supply, where applicable: 9% CGST + 9% UTGST.
• Inter-State supply: 18% IGST.

A 9% central-tax entry should not automatically be read as 9% total GST. Apply the tax type based on the transaction and applicable place-of-supply rules.

Apply the verified GST rate to the taxable value when calculating the tax on a business purchase or sale. Do not add GST again when the quoted amount already includes tax.

Assume a business purchase has a verified 18% GST rate and a taxable value of Rs. 10,000.

• Taxable value: Rs. 10,000
• GST: Rs. 10,000 × 18% = Rs. 1,800
• Total invoice value: Rs. 10,000 + Rs. 1,800 = Rs. 11,800

If the quoted price is Rs. 11,800 inclusive of 18% GST, the taxable value is Rs. 11,800 ÷ 1.18 = Rs. 10,000, and the GST included is Rs. 1,800. The 18% rate is only an assumption for this worked example.

Compare the descriptions, classification, legal sources, conditions, and effective dates before choosing a result.

• Different detailed classifications
• An older notification or rate entry
• A conditional concession
• Combined GST versus a central-tax component
• Goods versus service treatment
• Different treatment of the complete supply

Ask the supplier or adviser for the specific notification entry supporting their position. Keep the reasoning and source with your records when the decision affects recurring invoices.

A GST rate revision can affect your quotations, purchase orders, invoices, stock pricing, and accounting settings. The new rate does not automatically apply to every earlier transaction.

The effective date and applicable time-of-supply provisions determine the treatment. Section 14 of the Central Goods and Services Tax Act, 2017 can become relevant when the supply, invoice, and payment occur around a rate change.

Before updating your records:

• Identify the amended entry and commencement date.
• Assess transactions spanning the change.
• Update affected product or service records.
• Review tax-inclusive and tax-exclusive quotations.
• Check invoices issued after the change.
• Retain the notification and amendment history.

Retain enough evidence to explain why your business used a particular classification and GST rate when reviewing purchases, sales, or recurring invoices later.

• Supply description and product specifications or contract details
• Selected classification code and supporting reasoning
• Notification number and applicable entry
• Evidence that relevant conditions are met
• Effective date and date on which you checked the rate
• GST rate and tax components used in your billing setup

A saved search result can supplement these records, but it should not replace the underlying legal source.

Accurate GST rate verification helps you estimate the tax payable on purchases and sales, prepare customer quotations, record supplier invoices, and plan working capital. A change in GST classification or rate can also affect inventory costs, selling prices, margins, and cash requirements.

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