On July 21, 2016, HM Treasury published its Public Expenditure Statistical Analyses (PESA) for 2016. ukpublicspending.co.uk uses the PESA tables of public spending at the "sub-function" level as its major data source for UK public spending.
ukpublicspending.co.uk has now updated its spending tables using data from PESA 2016. The update includes outturn spending data for 2015-16, and plans data for 2016-17 through 2019-20. ukpublicspending.co.uk uses PESA's Table 6.4 for Central Government expenditure, Table 7.4 for Local Authority expenditure, and Table 8.3 for Public Corporation capital expenditure.
Since HM Treasury does not provide plans estimates for Local Authority spending, ukpublicspending.co.uk provides "guesstimates" instead. This is done by extending the percentage increase in spending between 2014-15 and 2015-16 for each sub-function for the plans year. It is assumed that local authority spending reductions will not carry through to plans years.
Country and Region spending has been updated up to 2014-15. These are obtained from Chapters 9 and 10 in the PESA document.