For purposes of reporting taxes due on a monthly basis, the reporting period is a calendar month unless the taxpayer has obtained the secretary's permission to use another period, such as reporting based on standardized calendar quarters of 4 weeks, 4 weeks and 5 weeks or thirteen months of 4 weeks. Because of complications introduced by deviations from the calendar month reporting, the secretary may require substantial justification before approving any significant departure from the calendar month reporting cycle.
N.M. Admin. Code § 3.1.4.15