When you log in to MyTax, your tax-related letters will change from paper to electronic form automatically. Read more about the changes.
If the payer withheld too much tax at source on income from a Finnish source (on dividends, wages or other type of income) or if the payer withheld tax when it was not due, you can ask for refund.
Choose your filing method
Submit your application in MyTax. After logging in to MyTax, select Report or request information in a limited scope.
Application for refund of Finnish withholding tax on dividends, interest and royalties
Send the form back to the address printed on it.
If you have an agent handling your taxes and you wish to have the decision sent to him or her, please indicate this on your request and give the agent's address as appropriate.
As an alternative to the refund of source tax, you can request progressive income taxation on your wage income or on any other earned income. In that case, complete Form 6148e — Application for progressive taxation.
Download the form
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The online authorisation mandate
You can use the feature called “Suomi.fi Authorization” to enable you to deal with another person’s taxes 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 from the other person. It will enable you to deal with that person’s taxes on the telephone, by visiting a service point on their behalf, or by submitting information on paper tax forms. To have a letter of authorisation (often called a ‘power of attorney’) does not provide access to MyTax.
Letter of authorisation for tax representation of individual taxpayers
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When is there no need for an authorisation mandate?
The following circumstances are examples of when you can deal with someone else’s taxes with no authorisation.
You have child younger than 18 and you handle the child’s taxes
You are automatically authorised to access MyTax for the child, without an authorisation. Log in to MyTax and select “Act on behalf of someone else”.
Read more about this subject on Suomi.fi.
You are a guardian
You do not need a Suomi.fi authorisation when your continuing power of attorney for being a guardian is officially confirmed, or when you are registered as a private guardian. Log in to MyTax and select “Act on behalf of someone else”.
Note: If you are a public guardian, in other words, a public official employed by a public guardianship office, you can only use paper forms.
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More information
Read more on sending electronic applications for tax-at-source refunds and tax-at-source cards
Key terms:
Page last updated 11/18/2024