JOB-ORDER COSTING WITH ACTIVITY-BASED COSTING
As Chapter 4 pointed out, using a single rate based on direct labor hours to assign overhead may lead to inaccurate cost assignments, in that too much or too little overhead assigned. Departmental overhead rates and activity-based costing were suggested ways of solving this problem. In job-order costing. departmental overhead rates and activity-based costing affect only the application of overhead. Thus, the job-order costing sheet has additional lines for overhead application, and the source documents must include all drivers for which overhead is applied. Comerstone 5.3 shows how and why to set up a job order cost sheet for a company using activity-based costing.
The How and WHY of Using Activity-Based Costing in Job-Order Costing
Information: Glover Company is a job order costing firm that uses activity-based costing to apply overhead to jobs. Glover identified three overhead activities and related drivers. Budgeted information for the year is as follows:
Activity Cost Driver Amount of Driver
Engineering design
Engineering hours
Purchasing
Number of parts
Other overhead
Direct labor hours
Glover worked on four jobs in July. Data are as follows:
Job 60 Job 61 Job 62 Job 63
Balance,7/1
Direct materials
Direct labor