News about certificate service

On this page, you will find news about the Tax Administration’s certificate service. The page contains information about new functionalities and about the corrections made and defects known.

You can check the planned maintenance breaks or other exceptional situations

Maintenance breaks and disruptions - vero.fi

Changes to the Tax Administration’s IP addresses of the certificate service

Some of the existing IP addresses will be used in a different way as the certificate service will undergo a technical update. 

Check whether the following changes require any actions:

• The changes listed below may require that your organisation should make adjustments, etc. especially with regard to firewalls, if you utilise firewalls to restrict access to interfaces or to the locking addresses of certificates.
• Accordingly, if your organisation uses PKI APIs for retrieving certificates or for renewing them, we’d like to ask you to make sure –  after the changes described below – that your internal firewall settings will still allow connection. 

What will change for testing certificates on 25 February 2026: 

pkiws-testi.vero.fi:

• current IP address: 80.242.22.199
• new IP address: 20.91.225.186

crl-testi.vero.fi:

• current IP address: 80.242.22.200
• the address will change from the IP to CNAME, and there will no longer be a fixed IP address, so to open the firewall you must use the DNS name.

For production certificates, the changes are preliminarily scheduled for 25 March 2026 and are as follows:

pkiws.vero.fi:

• current IP address: 80.242.22.204
• new IP address: 4.223.172.193 

crl.vero.fi:

• current IP address: 20.242.22.205
• the address will change from the IP to CNAME, and there will no longer be a fixed IP address, so to open the firewall you must use the DNS name.

cinfo.vero.fi:

• current IP address: 20.242.22.205
• the address will change from the IP to CNAME, and there will no longer be a fixed IP address, so to open the firewall you must use the DNS name.

A new version of the Tax Administration’s certificate service was released on 11 December 2025 

Key changes: 

It is now possible to revoke a certificate in the certificate service. Users can revoke both production and test certificates anytime of the day. 

However, the Certificate Service may have occasional maintenance breaks during which revocation is not possible. 

For more detailed information on revocation, please refer to the updated instructions: Varmenteen sulkeminen (in Finnish, will be updated in English soon).

A new version of the Tax Administration’s certificate service was released on 22 October 2025

Key changes:

General improvements have been made to the performance of the Tax Administration’s certificate service.

• Rejected interface agreements and unretrieved certificates will be cleared from the e-service in future.

Changes to the Testing certificates section

• Improvements have been made to interface agreements: the user can now see whether an application is a new or a replacement application.
• When testing interface applications are processed, the processing date/timestamp will be displayed.

A new version of the Tax Administration’s certificate service has been released on 11 June 2025

Key changes:

A new section has been added to the certificate request for users of the Positive credit register. In this section, a user acting on behalf of an organisation will enter all such parties acting on the organisation's behalf that will handle the certificate.

Read more: https://www.vero.fi/en/positivecreditregister/for-software-developers/certificate/ 

A new version of the Finnish Tax Administration's technical instructions for the certificate service has been released on May 19, 2025

• Tax Administration’s certificate service – a description of the PKI system and APIs the document includes technical clarifications related to the RSA key length.
• The example of certificate renewal has been separated from the document  into a dedicated subpage on the Certificate service’s webpage 
• Quick guide to certificate creation - includes technical clarifications related to the RSA key length.

A new version of the Tax Administration’s certificate service will be released on 28 April 2025.

Key changes to the Testing certificates section:

• Vero API users no longer need to send us the content of their testing certificates for saving: in future, we will automatically receive the certificate content directly to our back-end system.

A new version of the Tax Administration’s certificate service has been released on 15 April 2025.

Key changes to the Production certificates section:

• Improvements to the login screen and the selection of Suomi.fi authorisations.

A new version of the Tax Administration’s certificate service has been released on 7 March 2025

Key changes

• General improvements have been made to the performance of the Tax Administration’s certificate service.