While building reports in Qvinci, you can use date ranges that are based on either Calendar or Fiscal years. The "Fiscal Year" is not set within Qvinci - rather it is pulled from the individual accounting file(s) used in the report.
Fiscal date ranges work only when all the entities included in your report have the same Fiscal year in their accounting file. If you're running a report on 5 entities, all 5 entities would need to have the same Fiscal year in their corresponding Quickbooks or Xero files for that to reflect in reports.
If you run a report on a Fiscal date range, but the entities have different fiscal years in their corresponding accounting files, the report will produce traditional calendar years.