Australia tax file number


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eight to nine digits


eight to nine digits typically presented with spaces as follows:

  • three digits
  • an optional space
  • three digits
  • an optional space
  • two to three digits where the last digit is a check digit



Keyword Highlighting


When keyword highlighting is supported in the contextual summary for a sensitive information type or a trainable classifier, in the Contextual Summary view of activity explorer, the keywords in a document that were matched to a policy are highlighted.


A DLP policy has high confidence that it's detected this type of sensitive information if, within a proximity of 300 characters:

  • The function Func_australian_tax_file_number finds content that matches the pattern.
  • No keyword from Keyword_Australia_Tax_File_Number or Keyword_number_exclusions is found.
  • The checksum passes.
   <!-- Australia Tax File Number -->
    <Entity id="e29bc95f-ff70-4a37-aa01-04d17360a4c5" patternsProximity="300" recommendedConfidence="85">
      <Pattern confidenceLevel="85">
        <IdMatch idRef="Func_australian_tax_file_number" />
        <Match idRef="Keyword_Australia_Tax_File_Number" />



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