7-2A-8.3. Combined returns.
A. A unitary corporation that is subject to taxation under the Corporate Income and Franchise Tax Act and that has not previously filed a combined return pursuant to this section or a consolidated return pursuant to Section 7-2A-8.4 NMSA 1978 may elect to file a combined return with other unitary corporations as though the entire combined net income were that of one corporation. The return filed under this method of reporting shall include the net income of all the unitary corporations. Transactions among the unitary corporations may be eliminated by applying the appropriate rules for reporting income for a consolidated federal income tax return. Any corporation that has filed an income tax return with New Mexico pursuant to Section 7-2A-8.4 NMSA 1978 shall not file pursuant to this section unless the secretary gives prior permission to file on a combined return basis.
B. Once corporations have reported net income through a combined return for any taxable year, they shall file combined returns for subsequent taxable years, so long as they remain unitary corporations, unless the corporations elect to file pursuant to Section 7-2A-8.4 NMSA 1978 or unless the secretary grants prior permission for one or more of the corporations to file individually.
C. For taxable years beginning on or after January 1, 1993, no unitary corporation once included in a combined return may elect, or be granted permission by the secretary, for any subsequent taxable year to separately account pursuant to Paragraph (4) of Subsection A of Section 7-2A-8 NMSA 1978.