A late fee shall be charged for fees that are paid after the due date of April 30th, each year. The late fee shall consist of (i) $100 to cover administrative costs associated with the late payment and (ii) interest on the amount of the unpaid fees at an annual rate of fifteen percent (15%), compounded daily. The late fee will be applied to the mining act fund that is created by Section 69-36-19 of the New Mexico Mining Act.
N.M. Admin. Code § 19.10.2.205