HM Treasury has already allocated over £4.2 billion of additional funding to departments and the devolved administrations for EU exit preparations so far. This includes the £1.5 billion of additional funding HM Treasury announced at Autumn Budget 2017 for 2018/19. A full breakdown of how this was allocated to departments can be found in the Chief Secretary’s Written Ministerial Statement, HCWS540:
This money will be paid out in Supplementary Estimates 18/19 later this financial year.
This funding was not allocated specifically for planning for the UK leaving the EU without a deal.