For an IATI organisation file, additional fields will appear in the Project Information window next to the start date and end date of the project (or in this case the organisation file).
IATI guidelines stipulate that for the organisation file, you would specify the expenses of the last three years and the budget forecast for the next three years. When you create a new IATI organisation file, Logframer will automatically set the following duration settings:
You are not obliged to follow the 3-year rule, but it is recommended by IATI. If you want to change the default settings you can.