Question to the HM Treasury:

To ask Mr Chancellor of the Exchequer, what recent estimate HM Revenue and Customs has made of the value of uncollected tax in Northern Ireland.

HM Revenue and Customs published its latest tax gap estimates on 16 October 2014 in 'Measuring Tax Gaps' 2014 edition.

In 2012-13 the UK tax gap was estimated at £34 billion, 6.8 per cent of total tax due. We do not break this down by country.

Estimates of the non UK duty paid market for petrol and diesel fuels in Northern Ireland are published on pages 7 and 41-43. The non UK duty paid estimate covers both the illicit market and cross border shopping.

The excise duty losses due to the non-UK duty paid diesel market were £60 million for both 2011-12 and 2012-13. The excise duty losses due to the petrol non-UK duty paid market were £30 million for both 2011-12 and 2012-13.