CPA Exam Lab
Section 2: 30–40%2C

Inventory

Inventory is one of the most calculation-heavy MCQ topics in FAR — LIFO, FIFO, weighted average, LCNRV. The AICPA's favorite trick: give you a LIFO liquidation scenario and ask about gross profit. When LIFO layers are liquidated, older (lower) costs hit COGS and inflate gross profit — candidates who don't spot the liquidation get this wrong every time. Also know LCNRV applies item-by-item, not in aggregate.

What AICPA Wants You to Know

  • 1Calculate ending inventory and COGS under FIFO, LIFO, and weighted-average
  • 2Apply the lower of cost or net realizable value (LCNRV) rule
  • 3Analyze the impact of inventory errors on net income and retained earnings
  • 4Identify what costs are included in inventory (product costs vs. period costs)
  • 5Understand the LIFO reserve and LIFO liquidation