An accounting period usually lasts 12 calendar months and follows on from the previous one. You can see the currently selected period in the header of the side navigation. You can create a new period yourself at any time.
Procedure
Go to the menu Company → Change or add accounting period.
Click the Manage accounting periods button.
Click New.
On the Basic information tab, fill in the fields Abbreviation (the name of the year, for example
2026), Valid from (for example1.1.2026), and Valid to (for example31.12.2026).You don't need to fill in the Texts tab.
Save by clicking Save and close.
⚠️ Think carefully about the period you choose. An accounting period cannot be deleted later — practically all data in the system is linked to it. For details, see the article on deleting an accounting period.