Authorisations in different e-services

Katso authorisations will be taken out of use

Katso authorisations are no longer valid starting 1 January 2021. If you are currently using Katso authorisations to take care of someone else’s tax matters, you must request new Suomi.fi authorisations instead. Your Katso authorisations will not be automatically replaced with Suomi.fi authorisations.

When using your Suomi.fi authorisation, log in to the e-service with your personal e-bank codes, a mobile certificate or a certificate card. The mobile certificate or certificate card can also be provided to you by an organisation.

The table below shows which authorisation you need when you are using an e-service or service channel on the behalf of someone else.

If you are an accountant and you are using Ilmoitin.fi or Lomake.fi on the behalf of your customer, you can always use a personal identifier for identification. It does not matter whether you have been granted authorisation on Suomi.fi Authorisations or on the Katso service.

Authorisations needed by different taxpayer groups for different services when acting on the behalf of someone else.
Taxpayer group MyTax Ilmoitin.fi Lomake.fi Service at tax office or by telephone Incomes Register Palkka.fi TYVI operators
Individual taxpayers Suomi.fi - - Suomi.fi (except tax filing and requests for tax-at-source refunds or tax-at-source cards) Suomi.fi Suomi.fi -
Self-employed individuals Suomi.fi and Katso Suomi.fi and Katso Suomi.fi and Katso Suomi.fi (except tax filing and requests for tax-at-source refunds or tax-at-source cards) Suomi.fi and Katso Suomi.fi and Katso Katso
Agricultural and
forestry operators
Suomi.fi and Katso Suomi.fi and Katso Suomi.fi and Katso Suomi.fi (except tax filing and requests for tax-at-source refunds or tax-at-source cards) Suomi.fi and Katso Suomi.fi and Katso Katso
Limited liability companies and housing companies Suomi.fi and Katso Suomi.fi and Katso Suomi.fi and Katso Suomi.fi (except tax filing and requests for tax-at-source refunds or tax-at-source cards) Suomi.fi and Katso Suomi.fi and Katso Katso
Cooperatives Suomi.fi and Katso Suomi.fi and Katso Suomi.fi and Katso Suomi.fi (except tax filing and requests for tax-at-source refunds or tax-at-source cards) Suomi.fi and Katso Suomi.fi and Katso Katso
General and limited partnerships Suomi.fi and Katso Suomi.fi and Katso Suomi.fi and Katso Suomi.fi (except tax filing and requests for tax-at-source refunds or tax-at-source cards) Suomi.fi and Katso Suomi.fi and Katso Katso
Business partnerships and tax partnership Suomi.fi and Katso Suomi.fi and Katso Suomi.fi and Katso Suomi.fi (except tax filing and requests for tax-at-source refunds or tax-at-source cards) Suomi.fi and Katso Suomi.fi and Katso Suomi.fi and Katso
Estates Suomi.fi and Katso Suomi.fi and Katso Suomi.fi and Katso Suomi.fi (except tax filing and requests for tax-at-source refunds or tax-at-source cards) Suomi.fi and Katso Suomi.fi and Katso Suomi.fi and Katso
Associations and foundations Suomi.fi and Katso Suomi.fi and Katso Suomi.fi and Katso Suomi.fi (except tax filing and requests for tax-at-source refunds or tax-at-source cards)- Suomi.fi and Katso Suomi.fi and Katso Suomi.fi and Katso
International operators Katso Katso Katso - Katso Katso Katso
Joint-benefit administrations Suomi.fi and Katso Suomi.fi and Katso Suomi.fi and Katso Suomi.fi (except tax filing and requests for tax-at-source refunds or tax-at-source cards) Suomi.fi and Katso Suomi.fi and Katso Suomi.fi and Katso
Public organisations Suomi.fi and Katso Suomi.fi and Katso Suomi.fi and Katso Suomi.fi (except tax filing and requests for tax-at-source refunds or tax-at-source cards) Suomi.fi and Katso Suomi.fi and Katso Suomi.fi and Katso