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Martin Luther King Jr. Day

All department offices and locations will be closed in observance of Martin Luther King Jr. Day.

Fourth Quarter Natural Resource Production Taxes Due

Fourth Quarter production tax returns and payments due for: Micaceous Mines Cement & Gypsum Production Electrical Energy Producers 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

Fourth Quarter Coal Severance Tax

Fourth Quarter production tax returns and payments due for Coal Severance Tax.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

Rules Hearing for MAR Notice No. 2025-21.1 – Amendment of ARM 42.20.675(3) to update agricultural productivity value for bushels of spring wheat for the 2025-2026 reappraisal cycle

DOR Mitchell Building 125 N. Roberts, Helena, MT, United States

MAR Notice No. 2025-5.1 – Amendment of ARM 42.2.511, 42.22.105, and 42.22.107 pertaining to the implementation of Senate Bill 54 (2023)(SB 54) and revisions to centrally assessed property 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

Rulemaking Notice of Amendment – MAR Notice No. 2025-7.1 – Amendment of ARM 42.20.105(3) to correct an errant inclusion of text during the MAR Notice No. 42-1083 rulemaking process (effective 10/5/2024)

MAR Notice No. 2025-7.1 - Amendment of ARM 42.20.105(3) to correct an errant inclusion of text during the MAR Notice No. 42-1083 rulemaking process (effective 10/5/2024)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

Rulemaking Notice of Amendment – MAR Notice No. 2025-21.1 – Amendment of ARM 42.20.675(3) to update agricultural productivity value for bushels of spring wheat for the 2025-2026 reappraisal cycle

MAR Notice No. 2025-5.1 – Amendment of ARM 42.2.511, 42.22.105, and 42.22.107 pertaining to the implementation of Senate Bill 54 (2023)(SB 54) and revisions to centrally assessed property 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