All coal mines must file a Coal Gross Proceeds Tax return.
Montana taxes coal gross proceeds at 5% per year. (15-23-703, MCA)
Tax Value x 0.050 = Tax Owed
Gross proceeds are the number of tons produced multiplied by the contract sales price. The contract sales price is the price of the coal extracted and prepared for shipment FOB Mine, minus the required production taxes.
Price FOB Mine - Production Taxes + Royalties = Gross Proceeds
Production taxes include:
The contract sales price includes up to $0.15 per ton royalties paid to federal, state, and tribal governments and all royalties paid to other mineral rights owners.
File through our TransAction Portal (TAP)
The Coal Gross Proceeds Tax is due in two payments:
Local county treasurers collect CGP Tax. Contact your county for more information.
County treasurers distribute portions of CGP revenue to the appropriate taxing jurisdiction based on the number of mills levied in fiscal year 1990.