We assembled a tool for a customer using idle parts from our spare parts inventory. The costs incurred during assembly were expensed directly in the current period and were not reflected in the cost of goods sold (COGS). I am reviewing whether this accounting treatment is appropriate. My initial judgment is that the cost of the spare parts used to assemble the tool should be included in COGS. What is your view on this treatment?

Background of the issue

The tool is an asset owned by the customer, but it was assembled by us using inventory spare parts. The spare parts were originally managed as inventory, and their cost was capitalized at the time of purchase. The assembly consumed these spare parts, transferring them from inventory to the tool delivered to the customer. Therefore, the carrying value of the spare parts needs to be removed from inventory and reflected in the income statement.

Core controversy in accounting treatment

The point of contention is whether the cost of the spare parts should be part of COGS or treated as general and administrative expenses or research and development expenses. According to accounting standards, COGS typically includes costs directly related to selling goods or providing services. If the assembly of the tool constitutes a service provided to the customer or goods delivered, then the spare parts cost should be attributed to the cost corresponding to that revenue.

Reasons supporting inclusion in COGS

  • Matching principle:Revenue and costs should be matched. If the customer paid consideration for the tool (or the tool is part of a contract performance obligation), the related spare parts cost should be included in COGS when revenue is recognized.
  • Reduction of inventory:The spare parts are removed from inventory, and their cost should be transferred to the income statement. If not included in COGS, it may lead to inflated inventory or inaccurate expense classification.
  • Industry practice:In manufacturing or service industries, the direct material costs of customizing or assembling products for customers are typically included in COGS.

Situations where inclusion in COGS may not apply

If the tool is an internally used asset, or the assembly does not generate any revenue (e.g., as a gift for customer relationship maintenance), the spare parts cost may be more suitable as selling or administrative expenses. However, based on the description, the tool is "customer-owned," implying it is related to a customer transaction, so COGS is more reasonable.

"We have expensed the cost of the tool but have not recorded it in COGS. I question whether this is appropriate." — Original poster

Recommended accounting treatment

It is recommended to transfer the spare parts cost from inventory to COGS, while recognizing the corresponding revenue (if not yet recognized). The specific entry would be: Debit COGS, Credit Inventory (spare parts). If assembly labor or other indirect costs have been capitalized, they should also be transferred to COGS. If the tool does not generate revenue, its economic substance should be reassessed, and the expense account may need adjustment.

Practical considerations

  • Check whether the spare parts have been impaired; if there is obsolescence or damage, adjust the inventory value first.
  • Confirm whether the customer has paid or promised to pay consideration to determine the timing of revenue recognition.
  • If the tool is provided free of charge, the spare parts cost should be treated as selling expenses or non-operating expenses, not COGS.

In summary, based on the available information, including the spare parts cost in COGS is more consistent with accounting principles. It is recommended to communicate with the finance team or auditors and make a final decision based on specific contract terms and revenue recognition policies.