Skip to main content
A Singapore Government Agency Website How to identify
Official website links end with .gov.sg
Secure websites use HTTPS
Look for a lock () or https:// as an added precaution. Share sensitive information only on official, secure websites.
A Microsoft service disruption on 13 November 2026 is affecting some government systems, including email.

GovTech is working with Microsoft to restore services as soon as possible. The email disruption may delay responses to enquiries.  Thank you for your understanding.

Singapore Customs

Permit Amendment and Cancellation

Learn when you can amend, extend or cancel a transhipment permit in TradeNet, which fields are non-amendable, how payment timelines affect validity extension, and when voluntary disclosure to Singapore Customs is required.

Last updated on 25 February 2026

Amending a Permit

You may amend an approved permit in TradeNet as long as it is still valid.
There is no limit to the number of amendments you can make.

However, not all fields can be amended. Refer here for the list of non-amendable fields (opens in new tab).

After Making Amendments

If your permit conditions require Customs clearance, you must present the most updated approved copy of the permit to checkpoint officers during cargo clearance.

Refer to a sample of an amended Cargo Clearance Permit (opens in new tab).

When a Permit Cannot be Amended

You cannot amend a permit if:

Cancelling a Permit

If you submitted incorrect details that cannot be amended, you must:

  1. Cancel the existing permit (while it is still valid), and

  2. Apply for a new permit.

Cancelled export permits cannot be used for cargo movement.

You may also need to cancel certain permits (e.g. Out-Approved Premises/Schemes permits) or extend their validity if they are not used. Check the specific requirements in your permit conditions.

You cannot cancel a permit if:

  • It has already been used for cargo clearance.

  • It has expired for more than 1 calendar day.

  • It has been requested for audit by the Manifest Compliance Unit of Singapore Customs.

In these cases, you must submit a voluntary disclosure to Singapore Customs.