HMRC Survey of Personal Incomes (SPI)

• Published by: HM Revenue and Customs
• Last updated: 27 August 2014
• Topic: Government
• Licence: Open Government Licence

Summary

The Survey of Personal Incomes (SPI) is based on information held by HM Revenue and Customs tax offices on individuals who could be liable to UK tax. It is carried out annually by HMRC and covers income assessable to tax for each tax year. Not all of them are taxpayers because the operation of personal reliefs and allowances may remove them from liability. Where income exceeds the threshold for operation of Pay-As-You-Earn (PAYE), the survey provides the most comprehensive and accurate official source of data on personal incomes.

The SPI is compiled to provide a quantified evidence base from which to cost proposed changes to tax rates, personal allowances and other tax reliefs for Treasury Ministers. It is used to inform policy decisions within HMRC and the Treasury, as well as for tax modelling and forecasting purposes. In addition, it is used to provide summary information for the National Accounts that are prepared by the Office for National Statistics. Finally, it is used to provide information to Members of Parliament, other Government Departments, companies, organisation and individuals.

The UK Data Archive currently holds the Public Use Tape (PUT) data for 1985-86 and 1995-96 onwards (data for 2008-09 is currently unavailable). For further details of sampling and coverage criteria, see documentation. Further information about the SPI, including income tax and personal incomes statistics, is available on the HM Revenue and Customs web site. (See additional resources section)

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Data links

Link to the data	Format	File added	Data preview
Survey of Personal Incomes, 2009-2010: Public Use Tape	HTML	27 August 2014	Not available
Survey of Personal Incomes: Public Use Tape : Documentation	HTML	01 November 2013	Not available
HMRC web page	HTML	01 November 2013	Not available

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