Interface maintenance and downtime 2021

Information on downtimes and break times can be found on this page. We update the table below with information on maintenance work.

Some of the Tax Administration’s e-services have interfaces that may temporarily be out of service due to maintenance.

Interface maintenance and downtime 2021

November 2021

Thursday 18 November 2021 - monday 22 November 2021

  • There will be total downtime of VeroAPI services during this time due to back end system maintenance. We will specify the schedule later. 

Any questions or need for further information, send e-mail to: ohjelmistotalot(at)

Notes for VeroAPI users

The Test environment is available from 08.00 to 16.00. If you use the Test environment at other times, you may encounter downtimes due to maintenance. No tests can be run on Sundays.

The live Production environment is available to users almost 24 hours a day. Maintenance downtime downtime of few minutes occurs on weekdays between 17:00 to 18:00, and on weekends around 21.00. In addition to the above downtimes, availability is regularly affected by a service window on the third Sunday of every month from 10.00 to 14.00 due to scheduled maintenance. There is also a regular service window on last Thursday of every month from 17.00 to 01:30.