HMRC Guidance: Amend or cancel simplified import declarations

How to amend or cancel simplified frontier declarations, C21s and non-special procedure non-monetary supplementary declarations.

Contents

1. Check if you need to request a simplified frontier declaration or C21 amendment
2. Check if you need to request a non-special procedure non-monetary supplementary declaration amendment
3. If your trader records do not require notification
4. If you want to cancel a simplified frontier declaration, C21 or supplementary declaration
5. How to format the subject heading of your request
6. How to send single or batched requests
7. Send a request
8. If amendment request results in a revenue change
9. Request more information

Source gov.uk

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