New Mexico Statutes Chapter 7. Taxation § 7-39-9. Notification of tax rate; due date

A. On or before November 1 of each tax year the department shall notify the owner or operator of each copper mineral property, to which the Copper Production Ad Valorem Tax Act applies, of the tax rates that have been established for the taxing jurisdictions in which the copper mineral property is located, the taxable value of the copper mineral property and the amount of the copper production ad valorem tax due.

B. The copper production ad valorem tax is payable in two equal installments due on December 10 of the year for which tax is assessed and on May 10 of the following year. Payment shall be made to the department. No demand for payment of the copper production ad valorem tax is necessary.