Overhead Cost Flashcards
CHAPTER 7
What are overheads made up of??
Indirect material
Indirect labour
Indirect expenses
Absorption costing principles
Direct costs are assigned to cost units along with production overheads using an overhead absorption rate
What overhead is included in inventory valuation?
Only production overhead is included in the valuation of product
What overhead is included in product costing & profitability purposes?
All overheads are included and need to be considered
Production cost centres
Cost centres that actually produce goods
Service cost centres
Provide necessary services to production cost centres
Etc : Stores, maintenance, canteen
Allocation
Assigning any specific production overheads to individual cost centres that have incurred them
Apportionment
Joint overheads are shared/distributed among the cost centres that incur them on an appropriate basis
Reapportionment
Overheads of the service cost centres apportioned to production cost centres on an appropriate basis
Overhead absorption rate
Attributing overhead to a product or service, based for example on direct labour hours or machine hours
Predetermined absorption rate
Set annually, in the budget
= Budgeted overhead/ Budgeted level of activity
Why do we need to predetermine absorption rate
○ Many actual overheads are not known until the end of the year - - inconvenient to wait until the year end
○ A way to constantly evaluate the profitability of manufacturing
Can we calculate overhead more regularly such as each month ?
It is possible, but :
► Actual overheads from month to month would fluctuate randomly –> Overhead change then depend on random changes/events –> Misleading for costing purposes –> Administratively & clerically inconvenient to deal with
► Production output may vary each month –> Administration & control problems
Examples of bases of absorption
- Rate/machine hour
- Rate/labour hour
- Rate/unit –> all units identical
- Percentage of direct material cost
- Percentage of direct labour cost
- Percentage of prime cost
Reasons for under/over absorbed overhead
○ Actual overhead cost≠ budgeted overhead cost
○ Actual activity level ≠ budgeted activity level
○ Both actual overhead cost & activity level ≠ budgeted