Question to the HM Treasury:

To ask the Chancellor of the Exchequer, how much was received in tariffs for goods imported into the UK from non-EU sources in the last year for which figures are available; and how much of that was sent on to the EU.

This question was answered on 11th April 2019
In accordance with EU regulations, Member States contribute 80% of customs duties collected on non-EU imports. The UK consequently retains 20% of these duties to cover the costs of collection. In 2017, the UK contributed £3.2bn in customs duties to the EU.