Katso IDs and authorisations will remain in use until the end of 2020

News, 12/4/2019

You can continue using your Katso ID and Katso authorisations to access Tax Administration e-services until the end of 2020. After that, you must use the Suomi.fi authentication and authorisation services instead. You can start using Suomi.fi services immediately. More details on the schedule will be published later.

In order to start using Suomi.fi authorisations, you must log in to the e-service with your online banking codes, mobile certificate or certificate card. If you are taking care of another party’s tax matters, you must start using Suomi.fi right away in the following circumstances:

  • this is the first time you are using Tax Administration e-services
  • you have previously used a Katso ID and authorisation.

The following taxpayer groups can currently use Suomi.fi authorisations to access Tax Administration e-services:

  • private individuals
  • business owners and self-employed individuals
  • operators of a farm or forestry enterprise
  • limited companies, housing companies, cooperatives, limited partnerships and general partnerships.

Most companies and businesses registered in the Business Information System or in the trade register can already use Suomi.fi authorisations for their tax matters.

During 2020, Suomi.fi authorisations will also be made available to those who cannot yet use them.

Upcoming features in the Suomi.fi authentication and authorisation services

The following new features will soon be available in the Suomi.fi authentication and authorisation services:

  • Limited companies and housing companies can authorise another person or company to take care of their tax matters even if multiple people together have the right to sign for the company.
  • Estates, business partnerships, tax partnerships, joint-benefit administrations and public organisations can contact a tax official to authorise another party to act on their behalf.
  • Associations can authorise another party in the Suomi.fi authorisation service to act on their behalf, if the association has registered a personal ID with the right to sign for the association in the register of associations.
  • Foreign companies can contact a tax official to authorise a Finnish representative to act on their behalf.
  • Foreign companies and individuals can contact a tax official to get an authorisation that allows them to act on another party’s behalf. This authorisation can be granted between Finnish and non-Finnish parties.
  • Foreign individuals who have used the Katso service will be able to access a new authentication service in the spring of 2020. Foreign individuals can then register in this new service and get an electronic identifier.

More details on the schedule for these new features are available will be published later.

You can read about how other official authorities are implementing Suomi.fi authentication and authorisation services on their official websites.

More information on using Suomi.fi authorisations in Tax Administration and Incomes Register e-services:

(Edited 5 December 2019.)