What is BIS?

The Business Information System BIS ("YTJ" in Finnish) is a service jointly maintained by the Finnish Patent and Registration Office (PRH) and the Finnish Tax Administration, enabling you to file information to both authorities using one single notification.

You can use the BIS to:

  • start a business or an organization
  • report changes
  • close down a business or an organization
  • search for basic details of companies and organizations using the company search

The details you report through the BIS are forwarded

  • to the Trade Register and the Register of Foundations, which are maintained by the PRH, and
  • to the VAT register, Prepayment Register and Employer Register, which are maintained by the Finnish Tax Administration.

You can file some of the notifications online, but some must be filed using our paper forms.
On this website, you will find instructions for filing notifications. Go to notifications.
Use the BIS company search to search for basic details of a company or an organization by its Business ID. Go to the search.

Register of Associations is not included in BIS

Please note that the PRH Register of Associations is not included in the BIS system - you cannot search for association details using the BIS company search on this website, and if you have filed notifications online or on paper with the BIS, they are not automatically forwarded to the Register of Associations. Read more about the Register of Associations on the PRH website.