Question to the HM Treasury:

To ask Mr Chancellor of the Exchequer, pursuant to the oral evidence of the Permanent Secretary of HMRC of 23 May and 5 June 2018 to the Treasury Committee, whether he had seen prior to the publication of the estimated figures of £17 billion to £20 billion for the cost of the maximum facilitation model in a letter to that Committee on 5 June 2018 (a) submissions and (b) briefing papers on those figures; and what assessment he has made of the implications for his policies of those estimates.

The analysis to support the estimated £17-20 billion figure was published in a letter by the Chief Executive of Her Majesty’s Revenue and Customs to the Treasury Select Committee on 5 June, 2018.

The government is considering two approaches to a future customs relationship with the EU: a ‘new customs partnership’ and a ‘highly streamlined customs arrangement’. Ongoing analysis continues to support the development of both models.