70.375(6) (6) Indexing. For calendar year 1983 and corresponding fiscal years and thereafter, the dollar amounts in sub. (5) and s. 70.395 (1) and (2) (d) 1m. and 5. a. and (dg) shall be changed to reflect the percentage change between the gross national product deflator for June of the current year and the gross national product deflator for June of the previous year, as determined by the U.S. department of commerce as of December 30 of the year for which the taxes are due, except that no annual increase may be more than 10%. For calendar year 1983 and corresponding fiscal years and thereafter until calendar year 1997 and corresponding fiscal years, the dollar amounts in s. 70.395 (1m), 1995 stats., shall be changed to reflect the percentage change between the gross national product deflator for June of the current year and the gross national product deflator for June of the previous year, as determined by the U.S. department of commerce as of December 30 of the year for which the taxes are due, except that no annual increase may be more than 10%. The revised amounts shall be rounded to the nearest whole number divisible by 100 and shall not be reduced below the amounts under sub. (5) on November 28, 1981. Annually, the department shall adopt any changes in dollar amounts required under this subsection and incorporate them into the appropriate tax forms.

70.38(1) (1) Reports. On or before June 15, persons mining metalliferous minerals shall file with the department a true and accurate report in the form the department deems necessary to administer the tax under s. 70.375. The books and records of the person shall be open to inspection and examination to employees of the department designated by the secretary and to the state geologist.

70.38(1m) (1m) Estimated liability. Upon written request and for sufficient reason shown, the department shall allow a person subject to the tax under s. 70.375 to file, on or before June 15, a net proceeds tax return and to pay that tax based upon estimated tax liability. On or before September 15, that person shall file a final report and pay any additional tax due along with interest at the rate of 1% per month from June 15 until the date of payment. If the additional tax exceeds 10% of the person's tax under s. 70.375 for the previous year, the penalty and interest under s. 70.39 (1) apply. If the final report indicates that the person overpaid the person's liability, the department shall refund the overpayment.

70.38(2) (2) Combined reporting. If the same person extracts metalliferous minerals from different sites in this state, the net proceeds for each site for which a permit has been issued under s. 293.49 shall be reported separately for the purposes of computing the amount of the tax under s. 70.375 (5).

70.38(4) (4) Appeals.

70.38(4)(a)(a) Any person feeling aggrieved by the assessment notice shall, within 60 days after the receipt of the notice, file with the department a petition for redetermination setting forth the person's objections to the assessment. The person may request an informal conference with representatives of the department prior to September 15. The request shall be indicated in the petition. The secretary shall act on the petition on or before October 1. On or before November 1, the person shall pay the amount determined by the secretary pursuant to the secretary's action on the petition. If the person is aggrieved by the secretary's denial of the petition the person may appeal to the tax appeals commission if the appeal is filed with the commission on or before December 1.

70.39(1) (1) Taxes due and unpaid on June 15 shall be deemed delinquent as of that date, and when delinquent shall be subject to a penalty of 4% of the tax and interest at the rate of 1.5% per month until paid. The parent shall be liable for any delinquent taxes of a subsidiary person. The department shall immediately proceed to collect the tax due, penalty, interest and costs. For the purpose of collection the department or its duly authorized agent has the same powers as conferred by law upon the county treasurer, county clerk, sheriff and district attorney.

70.39(2) (2) Any part of an assessment which is contested before the tax appeals commission or the courts, which after hearing shall be ordered to be paid, shall be considered as a delinquent tax if unpaid on the 10th day following the date of the final order and shall be subject to the penalty and interest provisions under sub. (1).

70.39(3) (3) After the tax becomes delinquent, the department shall issue a warrant to the sheriff of any county of the state in which the metalliferous mineral property is located in total or in part. The warrant shall command the sheriff to levy upon and sell sufficient of the person's metalliferous mineral property found within the sheriff's county, to pay the tax with the penalties, interest and costs, and to proceed in the same manner as upon an execution against property issued out of a court of record, and to return the warrant to the department and pay to it the money collected, or the part thereof as may be necessary to pay the tax, penalties, interest and costs, within 60 days after the receipt of the warrant, and deliver the balance, if any, after deduction of lawful charges to the person.

70.39(4)(a)(a) Within 5 days after the receipt of the warrant the sheriff shall file a copy of it with the clerk of circuit court of the county, unless the person makes satisfactory arrangements for payment with the department, in which case, the sheriff shall, at the direction of the department, return the warrant to it.

70.39(4)(b) (b) The clerk of circuit court shall enter the warrant as a delinquent income or franchise tax warrant as required under s. 806.11. The clerk of circuit court shall accept, file and enter the warrant without prepayment of any fee, but shall submit a statement of the proper fees within 30 days to the department of revenue. The fees shall be paid by the state treasurer upon audit by the department of administration on the certificate of the secretary of revenue and shall be charged to the proper appropriation for the department of revenue.