Scam messages have been sent out in the Tax Administration’s name. Read more about scams.

News for software developers – 04/2026

News, 9/23/2026

News about Ilmoitin.fi

A new version of Ilmoitin.fi was released on 22 September 2026
 
Key changes:
  • You can check and submit self-employed businesses income tax returns (Forms 2, 2Y, 2C, 5, 6A, 7K, 7L) for tax year 2026.
  • Direct transfers of withholding data for 2027. You can check and submit:
    • direct transfers of resident pension recipients (VKESSELE) and direct transfers of non-resident pension recipients (RVKSSELE)
      • the last date for requests is 6 November 2026.
      • the response files will be provided on 30 November 2026
      • pension and benefit data must be submitted via the Vero API by 17 November 2026.
    • direct transfers of withholding data on wages (VKESSPAE)
      • The last date for requests is 15 February 2027.
      • The response file must be retrieved by 27 February 2027 at the latest.
    • data on YEL and MYEL work income (VKTYOSVA) for purposes of the 2027 preassessment.
      • The estimated work income for 2027 must be reported by 6 November 2026.
    • The example materials on the Sample files site have been updated
  • The Archive functionality will be changed so that submitted files can no longer be opened.
  • The instructions for the Ilmoitin.fi e-service are now also available on Ilmoitin - vero.fi

Tax Administration’s system update

Because of a system update, Vero API interfaces will close at midnight on 14 November. They will reopen again on 15 November by 5 pm at the latest.
 
Ilmoitin.fi: Notifications can be submitted normally during the update, but they will be processed by the Tax Administration only after the update. The arrival date will be the date of shipment. 
 
The interruption also affects other Tax Administration services. Follow related updates on the page Maintenance breaks and disruptions affecting the Tax Administration’s services.

News about Vero API 

New Status API helps track the progress of tax return processing

The Status API enables accounting firms and software providers to monitor the progress of their clients' tax return processing at the Tax Administration. By using the API, status information can be retrieved directly into financial management software, reducing the need for manual follow-up and separate checks in MyTax.
 
The API will be released to production by the end of October. After the release, the API documentation will be available in the API Portal.

APIs for retrieving tax return data to become available for wider use

The APIs for retrieving agricultural tax returns (Form 2), forestry tax returns (Form 2C), and business tax returns (Form 5) are curretly available only to limited users, which are financial institutions.
 
The aim is to add Suomi.fi authorization checks during the Tax Administration’s system update in November (14-15 November). Once implemented, these APIs will also become available to other organizations. Using the APIs requires the "Managing of tax affairs or Reporting, updating and retrieving tax information via the interface" authorization, and they can be used to retrieve the latest tax return information published in MyTax.

News about certificate service

The Certificate Service is approaching its second anniversary – Share your feedback!

The Tax Administration’s certificate service is approaching its second anniversary, and we would like to hear about your experience with the service. Through our customer experience survey, we are collecting feedback on the service’s usability, reliability, and customer support. Tell us what is working well and where we can make further improvements.
 
Completing the survey takes approximately five minutes, and all responses will be treated confidentially and anonymously. The survey will remain open until 9 October 2026.
 
 
Thank you for helping us improve the certificate service. Your feedback is important to us!

Upcoming change: One of the Finnish Tax Administration’s bank account numbers will change on 1 December 2026

The Finnish Tax Administration’s bank account with Danske Bank will be replaced by a new account with OP at the end of the year. The new OP account number will come into use on 1 December 2026, and the Danske Bank account will be permanently discontinued after a six-month transition period on 31 May 2027. There will be no changes to the Finnish Tax Administration’s bank account with Nordea.
 
If you have saved the Finnish Tax Administration’s Danske Bank account number in your online banking service or financial management software, please update the account number as soon as possible after 1 December 2026. If you pay taxes through MyTax, e-invoices, or online invoices, no action is required on your part.
 

Events for Software developers

“Clinics” on Teams (in Finnish)

For 2026, there is schedule for upcoming events on Teams, which you can find our website Tilaisuudet (in Finnish) .
 
Our “clinic” style events will offer IT developers a wide variety of information updates. If you have questions or suggestions for issues to be discussed at the next “clinic”, you are welcome to send e-mail to ohjelmistotalot(at)vero.fi – for subject, write: Klinikka.

The Tax Administration and software developers collaboration day online (in Finnish)

The Tax Administration and software developers spring collaboration day online on May 26, 2026. The day will start at 9:00 AM.
 
The day will feature current presentations on changes in taxation and their impact on software development. The day's presentations and a detailed schedule will be published closer to the event.
 

How to contact us or make enquiries

ohjelmistotalot(at)vero.fi
 
You can use the e-mail address of the Tax Administration (for software houses) to ask questions related to the Incomes Register as well. We forward the questions to the Incomes Register Unit. However, we remind all users that our e-mail is:
  • Intended for those who work with IT development at commercial software vendor companies
  • Designed to give guidance and support to IT development
  • Not at all for error processing
  • Instead, if you detect an error or become aware of a technical problem, always use the observation form to inform the Incomes Register Unit of it.
Page last updated 9/23/2026