How to log in to MyTax and other e-services

Katso IDs will be taken out of use

You can no longer use your Katso ID starting 1 August 2021. Log in to the e-services 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.

You must log in to be able to take care of your or your company’s tax matters in our e-services. Log in to MyTax or our other e-services with your e-bank codes, a mobile certificate, an electronic ID card or a Katso ID.

If you use the service on behalf of someone else, you will need a Suomi.fi authorisation.

Foreign companies using e-services for their tax matters are advised to start using new identification tokens and Suomi.fi authorisations. Katso IDs and Katso authorisations are valid until 31 August 2021.

Log in with e-bank codes, ID card or mobile certificate

When you take care of your own or your company’s tax matters, you can log in with your online banking codes, electronic ID card or mobile certificate, if you are:

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

You can log in with your online banking codes, electronic ID card or mobile certificate, if you are managing the tax matters of another company or organisation and you have been granted a Suomi.fi authorisation by any of the following:

  • companies (limited companies, housing companies and real estate companies)
  • foundations and associations
  • public organisations (such as municipalities and parishes)
  • partnerships (such as agricultural, forestry and business partnerships)
  • estates with a Business ID
  • benefits under joint administration.

Katso identification

The following taxpayer groups can log in with a Katso ID until 31 August 2021:

  • 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.

Use a Finnish Authenticator token for identification

Finnish Authenticator is an identification token for foreign companies’ representatives who do not have a Finnish identification token. At present, foreign individuals cannot use Finnish e-services for their official tax matters or authorise another person or company to use them on their behalf.

A representative needs the Finnish Authenticator mobile app and a Suomi.fi authorisation to use e-services on the foreign company’s behalf.

Read more: Foreign individuals: How to grant an authorisation for tax matters

Identification without Finnish ID - eIDAS identification for EU citizens

In future, eIDAS identification  will enable the citizens of other EU countries to use their own national identification methods to log in to the Finnish Tax Administration’s e-services.

Frequently asked questions

To get online banking codes you must sign an agreement with your bank. Note that only personal online banking codes enable you to log in to our e-services.

A mobile certificate is an identifier in your mobile phone’s SIM card. 

If the mobile certificate is in an employee’s business phone, it is not regarded as taxable income for the employee. If the certificate is in the employee’s private phone and is used for business purposes, the employer must give the employee a tax-exempt reimbursement for the expense against a receipt.

Read more about the mobile certificate at mobiilivarmenne.fi

A certificate card is an ID card containing a citizen certificate or an organisation card containing an organisation certificate. ID cards are issued by the police, whereas organisation cards are issued by the Digital and Population Data Services Agency. 

If the employer acquires an ID card for an employee, the card is regarded as taxable earned income for the employee. An organisation card, on the other hand, is not regarded as taxable income. If the employer has bought a card reader and it will remain in the employer’s use, the reader is not regarded as a taxable benefit for the employee.

Read more about certificate cards on the Digital and Population Data Services Agencys website: Certificates and cards for organisations