AD-1103, Accounting/Pay Period Calendar FY 2009. 23 KB. Form #, Accounting/Pay Period Calendars by FisA fiscal year (or financial year, or sometimes budget year) is a period used for … but do not require that the period reported on constitutes a calendar year ( i.e., 1st Quarter: October 1, 2009 – December 31, 2009; 2nd Quarter: January 1, … Private companies are free to observe their own accounting year, 2 Jan 2010 … It makes sense to follow common accounting period of April-March to avoid15 -moth period commencing from January 1, 2009 and ending on March 31, 2010. … its accounting period from the calendar year to April-March.