As a forest landowner, you must keep good records in order to take maximum advantage of the special tax treatments available for timber. At a minimum, you should keep a tree farm journal that lists all activities, costs, and incomes from the forest (see example below). You also should have accounts for land, timber, and other capital assets. When setting up timber basis accounts, it is a good idea to use Form T Forest Activities Schedule as a guide. It may be required when claiming depletion of the timber basis after a timber sale or loss.