Is it possible change the Fiscal Year to Calendar Year without changing all historical prior years records?
We like to change our fiscal year from 10-01/09-30 to a calendar year 01-01/12-31 but like to set those past fiscal years unchanged.
That is not possible in QBO. Once you change the Accounting for the first month of fiscal year setting, it will also change all prior years as well. These changes are set in the financial reports only. The only workaround I can think of is to customize the historical reports to your old fiscal years period and save it.