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How to Calculate Import Duty in India: Complete Guide

Learn how to calculate import duty in India, including HS codes, customs duty, assessable value, IGST and other applicable charges.

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Updated7 September 2026
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CustomsKnowledge Area
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What you’ll learn

This documentation provides practical information related to customsand helps trade professionals understand the topic more clearly.

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How to Calculate Import Duty in India: Complete Guide

How to Calculate Import Duty in India: Complete Guide

Importing goods into India involves more than simply paying the product price and shipping cost. Importers may also need to pay customs duties, IGST and other applicable charges before the goods can be cleared by Indian Customs.

Understanding how import duty is calculated helps businesses estimate their landed cost, price their products correctly and avoid unexpected expenses.

1. Identify the Correct HS Code

The first step in calculating import duty is identifying the correct Harmonized System (HS) classification for the product.

The HS code is used by customs authorities to classify imported and exported goods. The applicable customs duty, restrictions, exemptions and other requirements can depend on the classification of the product.

Before importing, verify the appropriate HS code for your product rather than relying only on the supplier's classification.

2. Determine the Assessable Value

Customs duty is generally calculated based on the assessable value determined under the applicable customs valuation rules.

For many imports, the transaction value is an important starting point. Depending on the circumstances, freight, insurance and other applicable costs may also be considered for customs valuation.

3. Calculate Basic Customs Duty

Basic Customs Duty (BCD) is applied according to the applicable tariff rate for the imported product.

For example, if the assessable value is ₹1,00,000 and the applicable BCD rate is 10%:

BCD = ₹1,00,000 × 10% = ₹10,000

The actual BCD rate depends on the product's classification and applicable tariff or notification.

4. Calculate Social Welfare Surcharge

Social Welfare Surcharge (SWS) may apply to customs duties as prescribed under applicable law.

Where applicable, it is generally calculated with reference to Basic Customs Duty.

For example, if BCD is ₹10,000 and applicable SWS is 10%:

SWS = ₹10,000 × 10% = ₹1,000

5. Calculate IGST

IGST may also be payable on imported goods.

The IGST calculation is based on the value determined under applicable customs provisions, together with applicable customs duties and other amounts required to be included in the taxable value.

For example, if the relevant taxable value for IGST calculation is ₹1,11,000 and the applicable IGST rate is 18%:

IGST = ₹1,11,000 × 18% = ₹19,980

This is only an illustrative example. The actual calculation depends on the applicable valuation and tax provisions.

6. Understand the Total Import Tax

The total amount payable at the time of import can include Basic Customs Duty, Social Welfare Surcharge where applicable, IGST and other applicable duties, cesses or charges.

Some products may also be subject to additional duties or special measures depending on their classification and country of origin.

7. Check for Exemptions and Notifications

Before calculating the final landed cost, check whether any customs exemption, concessional rate or other government notification applies to the product.

Eligibility can depend on product classification, country of origin, importer category, end use, notification conditions and required certificates or documents.

8. Consider Other Import Costs

Import duty is only one part of the total cost of importing goods.

An importer may also have expenses such as ocean or air freight, insurance, customs broker charges, port or terminal charges, documentation charges, transportation, warehousing, handling charges and demurrage or detention where applicable.

9. Simple Example

Suppose an importer brings goods into India with an assessable value of ₹1,00,000.

Assume, purely for illustration:

Assessable Value = ₹1,00,000

BCD = 10%

SWS = 10% of BCD

IGST = 18%

BCD = ₹10,000

SWS = ₹1,000

Value considered for IGST = ₹1,11,000

IGST = ₹19,980

Illustrative total of BCD + SWS + IGST = ₹30,980

The actual customs calculation can differ depending on the product, valuation, tariff classification, exemptions and applicable notifications.

10. Why HS Code Matters

A small classification difference can change the applicable duty rate and regulatory requirements.

The correct HS classification can also help determine whether the product is restricted, prohibited, subject to additional requirements or eligible for an exemption.

11. Estimate Your Landed Cost

A practical approach is:

Product Cost + Freight + Insurance + Applicable Customs Duties + IGST + Customs Clearance Costs + Port and Handling Charges + Inland Transportation + Other Applicable Costs = Estimated Landed Cost

Calculating this before placing an order helps importers understand their actual cost and make better purchasing decisions.

Conclusion

Calculating import duty correctly is an important part of planning an import shipment into India.

The process generally starts with identifying the correct HS code, determining the applicable customs valuation and checking the relevant duty rates, taxes, exemptions and notifications.

Because customs rates and requirements can vary by product and circumstances, importers should verify the applicable rates and rules before completing an import transaction.

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