Weighted-Average vs FIFO Process Costing
The main difference is whether beginning inventory work is blended with current-period work.
Weighted average
Weighted-average combines beginning inventory costs and work with current-period activity.
FIFO
FIFO separates prior-period work in beginning WIP from work performed this period.
Equivalent units
Equivalent-unit calculations differ because FIFO focuses on current-period work only.
Exam strategy
If the question isolates current-period performance, FIFO is often the more precise model.
The takeaway
Weighted average blends periods; FIFO isolates current-period work.
Related Summit resources
FAQ
What is the core idea?
Weighted average blends periods; FIFO isolates current-period work.
What should you identify first?
The main difference is whether beginning inventory work is blended with current-period work.
Why does this matter on the CPA Exam?
Understand how beginning work in process is treated differently under two process-costing methods.