Box sets » Discount rates

In each Economic and fiscal outlook we publish a box that summarises the effects of the Government’s new policy measures on our economy forecast. These include the overall effect of the package of measures and any specific effects of individual measures that we deem to be sufficiently material to have wider indirect effects on the economy. In our March 2017 Economic and Fiscal Outlook, we adjusted our economy forecast for the effects of reducing the ‘personal injury discount rate’.
The personal injury discount rate
In February 2017, just ahead of the Spring Budget and our March Economic and fiscal outlook, the Ministry of Justice announced that the ‘personal injury discount rate’ would be reduced from 2.5 to minus 0.75 per cent (in inflation-adjusted real terms). This box explained the direct and indirect effects of this change on our receipts and public spending forecasts.
ONS’s new statistics on UK pension liabilities
In April 2012, the Office for National Statistics (ONS) published the first set of new statistics on the total gross liabilities of UK pension providers, including the UK government. This box explored how the ONS’ pension liability estimates were calculated for public service pensions and state pensions, and compared the public service estimate to the Whole of Government Accounts (WGA) methodology.
Discount rates
Discount rates are used to convert future cash flows into an equivalent one-off upfront sum or present value, allowing them to be presented alongside stock measures on a single balance sheet. But there is no single ‘correct’ discount rate and the use of discount rates presents some challenges in analysis of balance sheet movements over time. This box from our first Fiscal sustainability report in 2011 outlined the different discount rates used in the Treasury’s Whole of Government Accounts.