Looking at LO Calc | pivot table | ability to group daily values by month, year.... Can a pivot table group by Financial Year?
For me, the Financial year starts in the previous year on 1 July and ends in the current year on 30 June. Data > Group and Outline > Grouping does not support financial years. The gui is a bit glitchy. Setting Start/End manually is effectively just a filter that doesn’t display the period, and although the year must be selected, the column is not shown and there is no indication of the period.