Why might a manager prefer that budgeted rather than actual cost-allocation rates be used for costs being allocated to his or her department from another department?

Answer:

The use of budgeted indirect cost allocation rates rather than actual indirect rates has several attractive features to the manager of a user department: a. the user knows the costs in advance and can factor them into ongoing operating choices, b. the cost allocated to a particular user department does not depend on the amount of resources used by other user departments, and c. inefficiencies at the department providing the service do not affect the costs allocated to the user department.