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Save your filings from by 31 December 2020.

If you have used a Katso ID or Katso authorisations to submit tax returns and other filings on, please note that you will not be able to access your previous and archived filings in the service after 31 December 2020. Save the filings you need to archive from the service before the end of December.
Katso services are taken out of use on 31 December 2020. After that, they are replaced by identification and e-authorisations..