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With this form, a non-resident foreign corporate entity can apply for a tax-at-source card for dividend, interest or royalty income received from Finland.
Choose the language of the form according to the language you wish to receive any possible information requests in. The form is available in Finnish, Swedish, and English.
Choose your filing method
Submit an application concerning dividend, interest or royalty income in MyTax. After logging in to MyTax, select “Report or request information in a limited scope”.
Send the completed application form to the address stated on the form. If it is more convenient, you can also deliver your application to any office of the Finnish Tax Administration.
Download the form
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The online authorisation mandate
You can use the Suomi.fi Authorization to enable you to deal with taxes for another person – including legal persons, companies, other entities – through e-services, over the telephone, or by visiting a service point on their behalf.
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Letters of authorisation on paper
You can receive a letter of authorisation written in the name of a company, to manage a single tax-related issue. If you – either personally or for an organisation that had been authorised – submit tax-related information on paper, a copy of the letter of authorisation has to be enclosed. A letter of authorisation does not provide access to MyTax.
Power of attorney for managing the taxes of a company (3804)
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More information
Read more about submitting electronic applications for tax-at-source refunds and tax-at-source cards
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Page last updated 12/18/2025