Our factory was idle for part of the year. Can we expense all overhead instead of allocating it to inventory?
An idle factory does not automatically make every production overhead item currently deductible.
By AE Tax Advisors Team · Updated October 28, 2026
An idle factory does not automatically make every production overhead item currently deductible. Section 263A allocation rules address mixed service costs, capacity and certain excluded costs. The manufacturer must distinguish genuine idle-facility costs from production-related overhead allocable to goods actually produced, using a reasonable permitted method.
A specific business-owner situation
A factory operates one production line while another is shut down. The owner wants to expense the building's entire rent even though the operating line still uses the space.
Illustrative example, not a client result.
What to establish before filing
- Separate facility-wide and line-specific costs.
- Identify the permitted allocation method.
- Review whether claimed idle costs meet the regulatory treatment.
Which fact changes the answer?
An identifiable idle facility differs from temporarily reduced output in a facility still producing goods. The actual use of space and services changes the allocation.
A mistake to avoid
A lower production volume is not evidence that all fixed overhead ceased supporting production.
Records that support the decision
- Capacity and downtime logs.
- Overhead accounts.
- Cost-allocation policy.
The decision to document
Retain a reconciliation between total overhead, excluded amounts and amounts assigned to ending inventory.
Business-owner tax planning and coordination · Discuss your business and advisory needs
Related questions
- We sell scrap generated during production. Is that separate revenue or a reduction of inventory cost?
- We reworked a defective production batch. Can we expense the rework while the goods remain unsold?
Sources and editorial context
General educational information prepared with AI assistance. No individual professional review is claimed. Apply the relevant tax-year rules to the actual records. Editorial policy · AI disclosure.