3-aseets calendars

You must first define fiscal years then asset calendars based on those fiscal years

A-fiscal year calendar: Use the Fiscal Years window to define the beginning and end of each fiscal year since the start of your company. Your fiscal year groups your accounting periods. Create fiscal years from the oldest date placed in service through one fiscal year beyond the current fiscal year. You can set up multiple fiscal years in this window. You can assign different fiscal years to your different corporate books. The calendar for a tax book must use the same fiscal year name as the calendar for the associated tax book.1 (N) Setup > asset system > fiscal year

Fiscal year name: Enter a Fiscal Year Name.