Hi Dain,On the "Depreciation Book Card" there is a field for "Fiscal Year 365 Days" as a tickbox. If you set this to Checked then BC will use the number of days between Posting Date of Depreciation Runs to determine the number of days. Use the Accounting Period Date as the Posting Date for the Depreciation calculation and BC will determine how many days since the last depreciation journal was posted and calculate the Depreciation for that many days.No changes are needed.