Policy costings

During the run-up to Budgets and other policy statements, we subject the Government’s draft costings of tax and spending measures to detailed challenge and scrutiny. We then state in the Economic and fiscal outlook and the Treasury’s costing documents whether we endorse the costings that the Government finally publishes as reasonable central estimates.

December 2012

The HM Treasury Autumn Statement 2012 policy costings document sets out the methodologies underpinning the cost estimates of measures announced at this fiscal event. All policy costings presented to the Office for Budget Responsibility that were included in the 2012 Autumn Statement were scrutinised and certified. The OBR has identified costings for policy measures which it deemed to be particularly uncertain – these are listed in annex B of the policy costings document.  In this annex we also set out the policy measures which have been assumed to affect the OBR economy forecast. Annex A of the document sets out in more detail the additional costs of Universal Credit as reflected in our forecast and on the scorecard.

Read the Policy Costings document

March 2012

All policy costings presented to the Office for Budget Responsibility at Budget 2012 were scrutinised and certified.  The Budget 2012 policy costings document sets out the methodologies underpinning these various costings.  The OBR identified costings for policy measures which it deemed to be particularly uncertain – these are listed in annex B of the policy costings document.  In this annex we also set out the policy measures which have been assumed to affect the OBR economy forecast.

Read the Policy Costings document

November 2011

The Office for Budget Responsibility certified all of the costings of policy decisions announced at the Autumn Statement (and measures announced post-Budget 2011 but confirmed at the Autumn Statement).  For information about these costings see the Autumn Statement 2011 policy costings document.  Annex A of this document contains further detail about the OBR scrutiny and certification process.

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March 2011

At Budget 2011 the Office for Budget Responsibility certified all but one policy costing presented to it by the government.  All Budget 2011 costings are detailed in the HMT policy costings document.  Our approach to the certification of costings is set out in annex B of the document.

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October 2010

The Office for Budget Responsibility certified costings for some Annually Managed Expenditure measures included within the October 2010 Spending Review. The costings we scrutinised are set out in the HM Treasury Spending Review Policy Costings document. Our certification is contained in Chapter 3.

Read the Policy Costings document

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