Scottish Budget, UK Budget

What’s happening to the Scottish block grant in 2020/21?

Last month’s UK Spending Round announced increases in UK Government resource spending of 4.1% in real terms next year. Will the Scottish block grant increase by more or less than this, and why? And what will this mean for the Scottish budget?

Departmental spending plans of the UK Government affect the Scottish block grant via the Barnett formula. The block grant increases by a population share of increases in comparable spending by the UK Government in England (or England and Wales in some cases).

And whilst revenues from devolved taxes have an increasingly material impact on the resources available to the Scottish Government, the block grant remains the most critical factor in determining the overall size of the Scottish budget.

An improved outlook for 2019/20

First, a slight digression to note that the Scottish Government’s resource block grant for 2019/20 has already increased significantly since the 2019/20 budget was approved by parliament at the start of this year.

The 2019/20 budget was based on a resource block grant of £27.6bn. Latest estimates put that figure at £28.2bn.

The increase of £600m can be explained by various ‘in-year’ spending changes by the UK Government which feed through to the Scottish block grant via Barnett consequentials. Slightly over half of the £600m in-year increase to the block grant flows from higher spending to meet increased pension costs of public bodies. As such this does not translate into additional spending power for the Scottish Government.

The remainder of the in-year increase reflects consequentials associated with a range of UK Government spending functions, including by the Ministry of Justice, and Brexit-related funding.

Real terms growth in 2020/21

From the higher 2019/20 baseline, the block grant will grow by £1.1bn in 2020/21. These consequentials flow mainly from increased UK Government spending on health (accounting for £635m), education (£324m), local government (£244m) and police (£83m).

The £1.1bn increase in the block grant is equivalent to an increase of 2.1% in real terms. This is a healthier rate of growth than the Scottish Government has been used to in recent years.

Unfortunately the Scottish block grant will be reduced by £200m next year to reflect forecast error in respect of the 2017/18 budget. Net of this adjustment the block grant will increase by somewhat less than 2%.

The Barnett squeeze and business rates revenue

But if total UK Government resource spending is increasing 4.1% in real terms, why is the Scottish block grant increasing just 2.1%? The explanation is two-fold.

The first part of the explanation relates to the infamous ‘Barnett squeeze’. The Barnett Formula allocates the Scottish budget a population share of increases in English spending. But because Scottish Government spending per capita is around 20% higher than ‘comparable’ English spending, a given per capita increase in the block grant accounts for a smaller proportionate increase to the Scottish grant.

With Scottish Government spending per capita around 20-25% higher than comparable English spending, the Scottish block grant increases by around 0.8% for each 1% increase in comparable English spending. So we might expect a 4.1% increase in UK Government spending to equate to around a 3.3% increase for Scotland.

(To illustrate, imagine that England has spending of £100 and Scotland of £12 in 2019/20, and that Scotland’s share of England’s population is 10%. Imagine that English spending increases to £104 in 2020/21, a 4% increase. The Barnett formula would increase the Scottish block grant by 10% of £4, to £12.4. The increase in the Scottish block grant, from £12 to £12.4, is a 3.3% increase.)

The second part of the explanation relates to business rates. Of the £13.8bn increase in UK resource spending, around £3bn is anticipated to be funded through increases in businesses rates revenues in England. Since business rates are devolved, they attract a negative consequential in the Barnett formula.

(The principle is that Scotland should not get a funding boost from spending increases in England that are funded through English business rates; so Scotland gets a positive consequential from increased local government spending offset by a negative consequential to reflect that part of the spending funded through business rates).

If we exclude the negative consequential associated with English business rates revenues, then the Scottish block grant would increase by around 3.1%.  This is like saying: if Scotland’s business rates revenues grow by an equivalent proportion as England’s, then its resources from the block grant and business rates revenues combined would grow by around 3.1%. (Note: current SFC forecasts anticipate a much smaller increase in Scottish business rates revenues than this next year).

So the difference between the 4.1% increase in UKG spending and the 2.1% increase in the block grant is explained by these two factors, Barnett squeeze and business rates revenues (with the remaining small difference accounted for by differences in spending increases across reserved and comparable functions at UK level).

The changes in context

Developments this year and last mark a decisive shift from what Derek Mackay might have expected at the start of this parliamentary session. The outlook then was for real terms declines in the resource grant in 2018/19 and 2019/20.

In fact, the Scottish resource block grant in 2020/21 (before any adjustments for devolved taxes, or new social security powers) will be 4.4% higher in real terms than it was in 2016/17, the last budget of the previous parliament (see Chart).

However the block grant in 2020/21 will still be some 3% below its peak in 2010/11.

Of course as well as the block grant, the outlook for the Scottish budget will depend on a variety of other factors, the parameters of which we can only guess at currently. UK Government tax policy and tax revenue forecasts will influence the Scottish budget, as well as Scottish policy choices and the outlook for Scottish revenues.

Details of these elements of the 2020/21 budget will emerge over the next few months.

Chart 1: Evolving outlook for the resource block grant at successive budget events, 2019/20 prices BGoutlook Notes: The increase in 2017/18 and subsequent fall results from the transfer of one-off monies to support the implementation of new fiscal powers. The figure for 2020/21 financial year from Budget 2018 is a projection based on the UK Government’s total DEL spending plans – but an exact sum had not been confirmed.


The Fraser of Allander Institute (FAI) is a leading economy research institute based in the Department of Economics at the University of Strathclyde, Glasgow.