bexio lets you create and manage a variety of categories. Categories can be managed for the following areas:
Manage the categories either via "Settings - All settings - Master data - Categories" or directly via the quick access point under "Settings - Contact categories".
Use the "New category" button to create a new category.
If you want to delete a category, open the desired category by clicking it, then click "Delete".
Categories for tasks can be found under "Settings - All settings - Master data - Tasks: Categories".
The process described above can also be used for task categories.