Making an export supplementary declaration
Last updated 6 January 2021
You’ll need to do a supplementary declaration when you export goods using simplified declarations, you must be authorised to use simplified declarations.
What you’ll need
If you’re submitting your own supplementary declarations you’ll need access to Customs Handling of Import and Export Freight (CHIEF) or the Customs Declaration Service (CDS) using third party software or through the National Export System.
You can get someone else to submit declarations on your behalf.
When to submit
The goods being declared are released from customs when either:
your pre-shipment advice is accepted
you make an entry in your records
You must submit your declaration within 14 days from the date your goods were released or departed the UK or EU.
How to submit
Your declaration will need to include your:
You also need to give information like the:
departure point and destination
consignee and consignor
type, amount and packaging of your goods
transport methods and costs
currencies and valuation methods
certificates and licences
You must submit one supplementary declaration for each simplified declaration.