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    In the In the Taxation statistics 2006-07 publication, the ATO embarked on an ambitious project to produce and release confidentialised 1% sample files containing individual tax return information. This was an attempt to satisfy the requirements of more advanced users of tax data and further demonstrates our commitment to an open and transparent tax system.

    The files are confidentialised in order to protect the identities of those contained in the files. Last year, sample files were released for the 2003-04, 2004-05, 2005-06, 2006-07 and 2007-08 income years. The data in these sample files was based on data contained in Taxation statistics for each of these income years.

    This year we are releasing the sixth sample file, which is for the 2008-09 income year and is based on data contained in Taxation statistics 2008-09. Each year, we will release a sample in conjunction with the release of Taxation statistics.


    In summary, the 2008-09 sample file:

    • represents 1% of returns lodged by individuals
    • contains around 123,000 individual records
    • contains 50 data items, including demographic information such as gender, partner status, age at 30 June (five-year range), occupation code (one digit level) and geographic region (based on postcodes) - the remainder of the data items are income, deductions, losses and some other indicators sourced from individual tax returns.
      Last modified: 18 Oct 2011QC 23907