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Provisional Assessment Under Customs — When and How

Provisional assessment under Section 18 of the Customs Act 1962 — when it is invoked, the bond and security, finalisation, and how interest and refunds work.

Vikas Sharma Tax & Compliance Expert
4 min read 8 views Updated Sep 9, 2026 Expert Reviewed High Complexity
Provisional Assessment Under Customs — When and How
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Last updated: September 2026Verified against: Government sources
Quick Answer

Provisional assessment under Section 18 of the Customs Act 1962 — when it is invoked, the bond and security, finalisation, and how interest and refunds work.

Overview

Sometimes at the time of import or export the exact duty cannot be pinned down: a test report is awaited, a document is missing, an exemption claim needs verification, or the declared value is under scrutiny. Rather than hold up the goods, Customs assesses them provisionally and finalises once the position is clear. This is a facilitation tool balanced with revenue protection through a bond and security.

Legal Basis

The power sits in Section 18 of the Customs Act 1962, read with the Customs (Finalisation of Provisional Assessment) Regulations 2018. Section 18(1) allows provisional assessment; 18(2) governs finalisation and recovery/refund; 18(3) deals with interest on short duty; and 18(4) with interest on refunds.

When It Applies

  • The importer/exporter is unable to produce a document or furnish information needed for assessment.
  • Goods require a chemical or technical test for classification or valuation.
  • An enquiry is pending — for instance, valuation of a related-party import before the Special Valuation Branch (SVB) passes its order.
  • Eligibility to an exemption notification is yet to be verified.

Step-by-Step Process

  1. The importer requests, or the officer directs, provisional assessment on the bill of entry.
  2. Duty is computed provisionally; the importer executes a bond under Section 18 (often a PD bond) for the differential.
  3. The officer directs security — bank guarantee, cash deposit or surety — to cover potential extra duty.
  4. Goods are cleared; the case remains open pending the missing input.
  5. When the test result/document/SVB order is available, the officer passes a final assessment order.

Finalisation, Interest and Refund

On finalisation:

  • If more duty is payable, it is recovered with interest under Section 18(3) from the first day of the month following the month of provisional assessment.
  • If duty was over-paid, it is refunded, subject to the doctrine of unjust enrichment — the importer must show the duty incidence was not passed on. Interest under Section 18(4) may apply on delayed refund.

Worked Example

An importer clears machinery provisionally with duty computed at ₹8,00,000, but the value is under SVB review; a bond and a bank guarantee of ₹2,00,000 are furnished. Six months later, the SVB holds the relationship did not influence price and confirms the declared value. The final assessment matches the provisional figure; the security is released and no additional duty arises. Had the value been loaded by 10%, the extra duty of about ₹80,000 would be recovered with interest.

Documents and Forms

DocumentPurpose
Bill of entry / shipping bill (marked provisional)Basis of provisional assessment
Section 18 bond (PD bond)Undertaking to pay differential duty
Bank guarantee / cash securityRevenue protection
Final assessment orderCloses the provisional assessment

Common Pitfalls

  • Not pursuing finalisation, leaving bonds and bank guarantees blocked for years.
  • Overlooking unjust enrichment when claiming a refund on finalisation.
  • Ignoring interest exposure on the differential duty.

Related Guides

Key Facts About Provisional Assessment Under Customs

  • Applies in: All states across India, under the relevant central law.
  • Mode: Mostly online via the official government portal.
  • Typical timeline: Ranges from a few days to a few weeks depending on the case.
  • Non-compliance: May attract penalties, interest or late fees.
  • Expert help: TaxClue completes the entire process end to end for you.

What is provisional assessment under Customs?

Under Section 18 of the Customs Act 1962, when duty cannot be finally determined at the time of import or export — because value, classification, or exemption eligibility is pending — the proper officer may assess the goods provisionally on a bond and security, and finalise later.

When is provisional assessment used?

Typically where the importer is unable to produce a document or information, where a chemical test or further enquiry is needed, or where valuation is under investigation (e.g., related-party transactions pending SVB order).

Over 90% of compliance penalties in India arise from missed due dates — timely handling can save businesses thousands of rupees each year.

— TaxClue Compliance Desk

Provisional Assessment Under Customs: a key compliance topic in Indian tax and corporate law that businesses and individuals must understand to remain compliant.

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Frequently Asked Questions
What is provisional assessment under Customs?
Under Section 18 of the Customs Act 1962, when duty cannot be finally determined at the time of import or export — because value, classification, or exemption eligibility is pending — the proper officer may assess the goods provisionally on a bond and security, and finalise later.
When is provisional assessment used?
Typically where the importer is unable to produce a document or information, where a chemical test or further enquiry is needed, or where valuation is under investigation (e.g., related-party transactions pending SVB order).
What security is required?
The importer executes a bond for the differential duty and furnishes security (bank guarantee, cash deposit or surety) as directed by the proper officer to cover the potential extra duty.
How is a provisional assessment finalised?
Once the pending information or test result is available, the officer passes a final assessment order. Any short-paid duty is recovered with interest; any excess is refunded, subject to unjust enrichment.
Is interest payable on provisional assessment?
Yes. If additional duty is found payable on finalisation, interest under Section 18(3) runs from the first day of the month following the month of provisional assessment. Refunds may also carry interest under Section 18(4).
What is the SVB and how does it link to provisional assessment?
The Special Valuation Branch examines related-party import valuations. Pending its order, imports are often cleared on provisional assessment with security, and finalised once the SVB determines whether the relationship influenced the price.

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Vikas Sharma VERIFIED EXPERT
7420 articles
Tax & Compliance Expert
Experienced in company registration, GST, trademark, and compliance. Helping Indian businesses stay compliant.
Disclaimer: This article is for general informational purposes only and does not constitute professional tax, legal or financial advice. Laws, rates and due dates change and can vary by individual case — always verify with the relevant government source (e.g. mca.gov.in, incometax.gov.in) or consult a qualified professional before acting. TaxClue accepts no liability for decisions taken based on this content.

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