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The Chancellor of the Exchequer delivered his Budget to Parliament on 18 March 2015. This is the Budget in full and supporting documents.
The government has published regular distributional analysis of the impact on households of its reforms to tax, tax credits, benefits and public spending. It analyses the effects of the government’s policies on a cumulative basis, which means that it includes measures from all fiscal events in this Parliament. It also includes changes that were announced before June Budget 2010 that have been implemented by the government.
The policy costings document sets out the assumptions and methodologies used in the government’s costing of policy decisions announced since Autumn Statement 2014. For each decision it contains a description of the measure, the base, the methodology for the costing (including relevant adjustments for behavioural responses) and highlights any areas of additional uncertainty.
This document details all of the data sources used throughout the Budget 2015. In order to be transparent, it informs readers of the Budget where the data used in the charts, tables and text comes from and how it has been calculated.