Foreign company in MyTax

If a foreign company does not have a Finnish Business ID although it has tax matters in Finland, the company can register in the Tax Administration’s register of taxpayers and use the MyTax e-service. If the company has a Finnish Business ID, it is already registered.

MyTax is the Tax Administration’s e-service where you can take care of your company’s tax matters yourself.

A company can register in the taxpayer register only for a valid reason.

The reasons include:

  • VAT special scheme returns
  • reports on construction work
  • transfer taxation
  • real estate taxation.

Foreign individuals cannot use MyTax yet.

Get a Katso ID and fill in an application in MyTax

1. Start using the Katso ID

2. Log in to MyTax

Include the following information in the application:

  • company’s name
  • company’s contact information
  • company’s home country
  • company’s ID (VAT number, TIN, foreign business ID or foreign trade register number) – enter the same ID that you used when you created the Katso ID
  • country where the ID is registered.

When we have processed your application and added your information to the Tax Administration’s register of taxpayers, we will notify you by e-mail. After you have received the e-mail, you can log in to MyTax and use it to take care of your company’s tax matters.