Depreciation fixed assets (expense) account

The dedicated Depreciation Account is a Control Account and therefore doesn’t appear in the drop down menus as it can only receive expense entries via the Fixed Assets tab Depreciation feature. If you want bring to account depreciation externally of the Fixed Assets tab, need you need to create your own P&L Depreciation Expense account and BS Prov for Depreciation account.

Here is the Guide for the in-built depreciation system