Corporate entities’ tax mail sent to MyTax only starting on 1 June

From June onwards, companies, associations and other corporate entities will receive the Tax Administration’s decisions and letters electronically in MyTax only. 

When a person managing a company’s or other corporate entity’s taxes logs in to MyTax on or after 1 June 2026, the company or entity starts receiving the Tax Administration’s decisions and letters only in electronic format. After login, the corporate taxpayer will see a notification saying that tax mail is delivered electronically. Electronic tax mail will be forced upon taxpayers that have not yet selected it voluntarily. The change concerns not only companies but also associations, partnerships, benefits under joint administration and deceased persons’ estates that have a Business ID.

Self-employed individuals with a business name and agricultural operators will be notified of new tax mail primarily by Suomi.fi messages.

Keep your contact information up to date to receive notifications when new tax mail arrives

MyTax guides a person acting on behalf of a corporate entity to submit an email address to which the Tax Administration can send notifications when there is new tax mail for the taxpayer in MyTax. Corporate taxpayers can submit the email addresses of all the persons to whom they want the Tax Administration to send notifications. 

Joonas Jarva, MyTax Product Owner, wishes to remind all that submitting contact information and keeping it up to date is very important.

“You should submit at least one email address to make sure you do not overlook taxes imposed or information requests sent to you,” says Jarva.
“Also remember to keep the contact information up to date. So if the email address changes, remember to update it to the company’s details. Likewise, if the person managing the company’s or association’s taxes changes, you must submit the new person’s contact information to MyTax.”

Email addresses and phone numbers can be updated on the Taxpayer details tab in MyTax.

If you select tax mail on paper, the selection is valid for 60 days

Corporate entities can select in MyTax to receive tax mail on paper. The selection is valid for 60 days During the period, the taxpayer can use MyTax without activating electronic tax mail. When the taxpayer logs in to MyTax after the 60-day period, the tax mail will be sent electronically again. If the taxpayer’s taxes are not managed in MyTax after the 60-day period, tax mail continues to be sent on paper.