Start-up notifications on paper: forms and instructions

Companies must file their notifications and applications online with the Finnish Trade Register from 1 January 2026. This does not apply to private traders, associations or foundations.

Use these Y forms and enclosures:

  • if you are filing your notification using the Finnish Trade Register’s online forms or
  • if you are filing information with the Finnish Tax Administration’s registers by post. In that case, use the following address: Tax Administration, Business Information System, P.O. Box 2000, FI-00231 Helsinki, Finland.

Use separate personal data form

The details you enter on the form will be publicly available to everyone. When you send notifications, do not include any documents, such as minutes or partnership agreements, that contain personal identity codes, home addresses, or other sensitive details, such as health details.

If you file your notification using our paper forms, file the person’s identification details on a separate personal data form. Do not fill in personal identity codes or home addresses on any other notification forms.

Further information and advice

The PRH advises on matters associated with the Finnish Trade Register, Register of Associations and Register of Foundations. You will find instructions on the prh.fi website.Avautuu uuteen välilehteen

The Finnish Tax Administration advises on tax matters. You will find instructions on the vero.fi website.Avautuu uuteen välilehteen ​

Shortcut to instructions

Are you setting up a company or an organisation? Based on your selection, we will guide you to our website (prh.fi), where you will find instructions for filing a start-up notification.

Start-up notification for limited liability companies, co-operatives and foundations (Y1)

Required documents:

Go to the instructions for filling in form Y1.

Start-up notification for general partnerships, limited partnerships, and tax consortiums (Y2)

Required documents:

Go to the instructions for filling in form Y2.

Start-up notification for private traders, self-employed, and agricultural or forestry operators (Y3)

Required documents:

Go to the instructions for filling in form Y3

Start-up notification for associations, religious communities, and chambers of commerce (Y1a)

Required documents in Finnish

  • Form Y1a
  • Organisation-specific appendix forms:

Required documents in Swedish

Go to the instructions for filling in form Y1a.