Amend or Cancel Non-Special Procedure Supplementary Declarations

April 13, 2026 · WOWERI

Need to amend or cancel a non-special procedure supplementary declaration? Learn how to notify HMRC with this guide.

Introduction

If you have made changes to your supplementary declaration or want to cancel it, you need to notify HMRC. You can do this using the CSFP form.

Notifying HMRC

To notify HMRC, you will need to provide the following information:

• Your application number
• The date and number of the supplementary declaration
• The reason for the amendment or cancellation

You can submit the form to HMRC by post or email.

Important Dates and Timelines

Check the CSFP form for the latest information on timelines and deadlines.

Source: gov.uk