Since 2012 we have forecast some tax streams that have been devolved to the Scottish Parliament and, more recently, taxes which may be devolved to the National Assembly for Wales. Our forecasts for devolved taxes are published alongside each Economic and fiscal outlook and are consistent with our main UK forecasts.
Alongside the Scotland Bill 2012, which set out plans to devolve taxes to the Scottish Parliament, the Government produced a Command Paper which asked us to produce forecasts for Scottish income tax, stamp-duty land tax, landfill tax and aggregates levy. Since then we have been publishing Scottish tax forecasts alongside each of our main UK forecasts. The Chairman also gives evidence to the Scottish Finance Committee. In April 2015, the Government fully devolved stamp duty and landfill tax to Scotland. Following the passing of the Scotland Act 2016 we now also forecast Scottish air passenger duty.
In a Command Paper published with the Wales Bill 2014, the Government requested that we produce Welsh forecasts alongside each Economic and fiscal outlook. Since December 2014 we have been forecasting the Welsh rate of income tax, stamp-duty land tax, landfill tax and aggregates levy and occasionally the Chairman is invited to give evidence to the Welsh Assembly Finance Committee.
An agreement is in place to devolve corporation tax to Northern Ireland from April 2018. The Northern Ireland Executive announced this in A Fresh Start – The Stormont Agreement And Implementation Plan.