What is a c3 form 2026

1. Click ‘Get Form’ to open the C3 form in the editor.
2. Begin by filling out your personal details on Page 1, including your name and date of arrival in the UK.
3. In the Packing Details section, enter the total number of items in your shipment. If unknown, leave it blank for completion by customs.
4. Leave the Request to Clear section blank; this will be completed by customs.
5. On Page 2, carefully read the Duty and Tax Relief definitions before checking the appropriate boxes for your situation.
6. Proceed to Part A on Page 3. List all goods you are declaring. If you have none in a category, write 'NONE' instead of leaving it blank.
7. Complete Part B only if instructed by questions on Page 2; otherwise, write 'NONE'.
8. Finally, sign and date the declaration at the end of the form and provide your UK address.

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