How to log in

Users of e-Services must log in for managing their taxes online. 

You can log in with your online banking codes, electronic ID card or mobile ID, if you are:

  • a private individuala business operator or a self-employed individual
  • an operator of agriculture or forestry
  • the representative of a limited liability company, housing company, cooperative society, general partnership, limited partnership or association and you have an authorisation recorded in the Trade Register that entitles you to use MyTax on their behalf.

The following taxpayer groups can log in with a Katso ID or with personal online banking codes, an electronic ID card or a mobile ID:

  • companies (limited liability companies, housing companies and real estate holding companies)
  • foundations and associations registered in the Trade Register.

The following taxpayer groups can log in with a Katso ID:

  • companies (limited liability companies, housing companies and real estate holding companies)
  • foundations and associations public organisations (such as municipalities and parishes)
  • partnerships (such as agricultural, forestry and business partnerships)
  • estates with a Business ID
  • joint-benefit administrations
  • foreign citizens and companies.

See also: Identification without Finnish ID - eIDAS identification for EU citizens

If you use the service on behalf of someone else, you will need a Suomi.fi authorisation or a Katso ID. Read more about authorisations.