How will Brexit affect customs costs?

How will Brexit affect customs costs?

Businesses which trade internationally faced significant uncertainty during the Brexit Transition Period as the UK negotiated its exit from the EU. As Brexit came into full effect on 1 January 2021, businesses now have to ensure that they are fully prepared for the challenges that will proceed. 

The key question is: what impact will this change have on imports and exports in the post-Brexit environment; and in particular for Irish businesses?

We have outlined below the key customs and operational considerations that your firm need to consider:

  • Changes to customs and the legislative framework
  • Duty rates and payments impact 
  • Border Controls
  • Vetinerary Checks 
  • Trade agreements with EU specific to Ireland and the UK
  • Trusted Trader (AEO)

For further information on how we can assist you, please contact Carol Lynch on +353 1 470 0491 or or Ivor Feerick on +353 1 470 0250 or  

Are you looking to solve your customs clearance challenge?

BDO Customs and International Trade Services can provide traders with the best of what in-house services and professional brokerage can offer. Get visibility and access to your customs declarations while having a professional brokerage lodge declarations and interact with Revenue on your behalf.


Carol Lynch writes commentary on key Brexit updates in:

On Thursday 20th April, Carol Lynch joined RTE's "Open for Business" show which was live on RTÉ One. The show looks to provide useful advice and guidance for Irish businesses as they navigate the new Covid-19 world and you can re-watch the full episode on the RTÉ Player.

In the below extracts from the show, Carol discuss the impact of Brexit on businesses and consumers. Content adapted from RTÉ One twitter feed.


On 25 January 2021, Carol Lynch and Tony Connelly, Europe Editor, RTÉ,  joined Cróna Clohisey, Public Policy Lead, Chartered Accountants Ireland to discuss the impact Brexit is having on businesses and the political dialogue. 

The recording was carried out by Chartered Accountants Ireland remotely.


On 8 October 2020, Carol Lynch joined Enterprise Ireland, as part of International Markets Week 2020, to discuss her customs advice for Irish companies with Brexit on the horizon.

The recording was carried out by Enterprise Ireland remotely. 


On 25 May 2017, Carol Lynch appeared before the Joint Committee on Finance, Public Expenditure and Reform, and Taoiseach to discuss Brexit: Matters relating to Customs, Trade and Tariffs. She focused on the customs requirements and regulations which will impact on Ireland should the UK leave the Customs Union in 2019.
The session was carried live on Oireachtas TV, a clip of which can be viewed below. A transcript of Carol's submission can be found here