Interface's production addresses will change during 2026

The change of IP addresses in the Incomes Register’s technical interface production environment will be postponed to next year. We recommend switching from direct service addresses to name-based addresses as soon as possible.

The changes will be implemented during the following service breaks:

• IP addresses in the stakeholder testing environment (EXT) will change on February 5, 2026, from 9 am to 3 pm. The change has been implemented on February 10, 2026.
• Production IP addresses will change on February 28, 2026, from 9 am to 3 pm.

The change will affect you if you use a direct IP address

If you use direct IP addresses on the interface, changes to the system will be required due to the change of address.

If you use name-based IP addresses, the change will have no effect and no action is required.

Start using name-based IP addresses – reduce the need for maintenance

We recommend the use of name-based IP addresses. They will reduce the need for maintenance, as IP addresses may change again in the future.

Read more: Interface's production addresses

Earlier on this topic: Interface's production addresses to change in autumn

News published on November 14, 2025. Updated on December 16, 2025 with information about the schedule of the change. Updated on February 12, 2026 with information about the schedule of the change on EXT.