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:

• customs procedure code

• commodity code

• declaration unique consignment reference

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

Find out the boxes you need to complete on your declaration.

You must submit one supplementary declaration for each simplified declaration.

Find out the boxes you need to complete on your declaration in CHIEF.

Find out the boxes you need to complete on your declaration in the Customs Declaration Service.