Project Cost Reporting - What costs are captured

Question

I'm in the process of trying to consolidate what costs projects typically capture within our organization, and thought I would ask the community at large what costs they gather and report on.

For instance, as our projects are responsible for the entire costs of running a PM office/ team, things like salaries, training, accommodation, employee benefits, etc. are paid for by the project aside from the actual acquisition costs of what it is they are procuring.

Answer 1

Fixed, variable & overhead would be the normal categories that are part of the budget for many of the clients I've supported.

 For others, it is just directly attributable ones (i.e. Fixed & Variable) and overhead costs are addressed through operational budgets. 

I tend to find the former is common in the strong matrix or project-oriented structures whereas the latter is more common in functional, weak, or balanced matrix contexts. 

Hope this helps!