Your own details

You can read your own tax data and take care of almost all tax matters in MyTax.

Submit bank account number

It is easier and quicker to transfer money if we know your bank account number. For example, a tax refund will be with you much sooner when we pay it into your bank account and not by money order.

Submitting a bank account number

Authorise someone else to manage your taxes

You can authorise another person to act on your behalf in MyTax.

How to grant and request authorisation

Electronic tax mail

From 14 April on, when you log in to MyTax you will activate Suomi.fi Messages. Tax correspondence will be delivered electronically only, in MyTax.

Suomi.fi messages and electronic tax mail

Check your address information

If you use paper forms and receive paper mail from us, make sure that your address information is up to date. We will mail the tax card and the tax return to the address that was in our records a few months before the mailing.

Change of address

Electronic tax mail

From 14 April on, when you log in to MyTax you will activate Suomi.fi Messages. Tax correspondence will be delivered electronically only, in MyTax.

Suomi.fi messages and electronic tax mail

Check your address information

Change of address

Page last updated 5/8/2025

Your own details

Submit bank account number

Authorise someone else to manage your taxes

Electronic tax mail

Check your address information

Electronic tax mail

Check your address information

Electronic tax mail

Detailed guidance

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