Tax Legal Services · Primary-source case analysis

United Dominion: Product-Liability Loss Was Computed on a Consolidated Basis

By Aneeta Mishra and Timothy Chan

Published April 28, 2026

United Dominion explains why the consolidated-return regulations supplied a single group-level net operating loss for applying the extended carryback then available to product-liability losses.

A corporate group claimed an extended carryback

United Dominion’s affiliated corporations filed consolidated returns and incurred product-liability expenses. The dispute was whether each subsidiary first needed its own positive net operating loss.

The regulations created one consolidated net operating loss

For a consolidated-return year, the governing regulations computed a single consolidated taxable income and consolidated net operating loss. They did not define a separate member net operating loss for this purpose.

The product-liability component was tested at group level

The Court compared the group’s aggregate product-liability expenses with its consolidated net operating loss. Profitable and loss-generating members were not isolated before applying the statutory limitation.

Disposition

The Court reversed the Fourth Circuit and allowed the group-level calculation. Current consolidated-return and carryback provisions must be checked for the tax years at issue.

Key takeaways

• Confirm whether the group filed a consolidated return.
• Use definitions supplied by the consolidated-return regulations.
• Perform the loss calculation at the legally required level.
• Check later amendments to carryback rules.