Michigan Tax Tribunal Ruled on Unitary Filings
The ruling allows insurance subsidiaries to file as a unitary business group for 2014 and 2015 tax returns.
Updated on Oct. 5, 2026 in Taxes

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The Michigan Tax Tribunal granted summary disposition in 11 dockets, determining that Nationwide Agribusiness Insurance Company and its subsidiaries can be treated as a single unitary business group for tax purposes. This decision affects combined returns filed for the 2014 and 2015 tax years.
Why it matters
This ruling clarifies the tax filing status for insurance companies in the state, establishing that subsidiaries can report zero tax and credits on combined returns. The move allows these entities to claim refunds or transfer overpayments to their parent company.
The Michigan Tax Tribunal consolidated 11 dockets to resolve tax treatment for the 2014 and 2015 tax years. The ruling permits subsidiaries to report zero tax and credits, allowing for potential refunds or transfers of overpayments to the parent company.
The players
Michigan Tax Tribunal
A state-level administrative body that hears appeals regarding property and business tax disputes in Michigan.
Nationwide Agribusiness Insurance Company
A national insurance provider offering agricultural coverage that is the parent entity in this tax case.
Michigan Court of Appeals
An intermediate appellate court that establishes legal precedents used by lower administrative tribunals.
The details
Applying a determination from the Michigan Court of Appeals, the Tribunal treated the insurance subsidiaries as a single unitary business group. By filing as a combined group, the subsidiaries can streamline their tax reporting by zeroing out their individual tax and credit obligations. Overpayments generated under this structure are now eligible for either a refund or a transfer to the parent company to resolve accounting balances.
Timeline
The tax returns in question cover the 2014 and 2015 tax years.
The summary disposition was granted on October 5, 2026.
Money Landscape
This decision follows the established legal precedent for unitary business group taxation set by the Michigan Court of Appeals. It marks a significant clarification in how multi-entity insurance organizations manage their combined tax liabilities within the state.
Business owners and corporate taxpayers should review how current state rules for unitary combined filings apply to their structure. Consult a tax professional to understand if similar consolidation strategies are applicable to your specific household or business entities.
The takeaway
This ruling underscores the importance of monitoring how administrative tribunals apply appellate-level court precedents to business tax reporting. If you are involved in multi-entity business structures, keep records of your historical tax filings to see if they align with updated guidance.
Further reading
For broader guidance on business tax obligations, visit the Michigan Taxes section.
Source note: This article includes information reported by Bloombergtax.
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