Energy Efficiency Rebates

Renewable Energy Systems Exemption

Montana Tax Incentive

program summary

Montana's property tax exemption for recognized non-fossil forms of energy generation and low emission wood or biomass combustion devices may be claimed for 10 years after installation of the property. The exemption is allowed for up to $20,000 in value for single-family residential dwellings and up to $100,000 in value for multi-family residential dwellings or non-residential structures. This property is class 4 property and otherwise would be taxed on 2.54% of assessed value in tax year 2013 and 2.47% in tax years after 2013.

Recognized forms of energy generation include solar photovoltaics, passive solar, wind, solid waste, decomposition of organic wastes, geothermal, small hydropower plants, low-emission wood or biomass combustion systems, and fuel cells that do not require hydrocarbon fuel.

Use Montana Department of Revenue Form AB-14 to claim this exemption.

eligible technologies
Anaerobic Digestion, Biomass, Fuel Cells using Renewable Fuels, Geothermal Direct-Use, Geothermal Electric, Geothermal Heat Pumps, Hydroelectric (Small), Landfill Gas, Municipal Solid Waste, Solar - Passive, Solar Photovoltaics, Solar Pool Heating, Solar Space Heat, Solar Thermal Electric, Solar Thermal Process Heat, Solar Water Heat, Wind (All), Wind (Small)
program administrator
Montana Department of Revenue
list of rebates
- Flat rebate of 100% of cost (Biomass)
- Maximum rebate of 10 Years (Biomass)
- Flat rebate of 100% of cost (Fuel Cells using Renewable Fuels)
- Maximum rebate of 10 Years (Fuel Cells using Renewable Fuels)
- Flat rebate of 100% of cost (Geothermal Direct-Use)
- Maximum rebate of 10 Years (Geothermal Direct-Use)
- Flat rebate of 100% of cost (Geothermal Electric)
- Maximum rebate of 10 Years (Geothermal Electric)
- Flat rebate of 100% of cost (Geothermal Heat Pumps)
- Maximum rebate of 10 Years (Geothermal Heat Pumps)
- Flat rebate of 100% of cost (Hydroelectric (Small))
- Maximum rebate of 10 Years (Hydroelectric (Small))
- Flat rebate of 100% of cost (Landfill Gas)
- Maximum rebate of 10 Years (Landfill Gas)
- Flat rebate of 100% of cost (Municipal Solid Waste)
- Maximum rebate of 10 Years (Municipal Solid Waste)
- Flat rebate of 100% of cost (Solar - Passive)
- Maximum rebate of 10 Years (Solar - Passive)
- Flat rebate of 100% of cost (Solar Photovoltaics)
- Maximum rebate of 10 Years (Solar Photovoltaics)
- Flat rebate of 100% of cost (Solar Pool Heating)
- Maximum rebate of 10 Years (Solar Pool Heating)
- Flat rebate of 100% of cost (Solar Space Heat)
- Maximum rebate of 10 Years (Solar Space Heat)
- Flat rebate of 100% of cost (Solar Thermal Electric)
- Maximum rebate of 10 Years (Solar Thermal Electric)
- Flat rebate of 100% of cost (Solar Thermal Process Heat)
- Maximum rebate of 10 Years (Solar Thermal Process Heat)
- Flat rebate of 100% of cost (Solar Water Heat)
- Maximum rebate of 10 Years (Solar Water Heat)
- Flat rebate of 100% of cost (Wind (All))
- Maximum rebate of 10 Years (Wind (All))
- Flat rebate of 100% of cost (Wind (Small))
- Maximum rebate of 10 Years (Wind (Small))
program notes
2025-10-08 18:55:33
Annual review, no policy changes.
2024-10-28 19:25:05
Annual review; no changes.
2023-11-06 20:38:49
Annual review, link updated.
2020-07-13 13:16:30
Annual Review, no changes
2019-06-20 14:07:39
Annual review; no changes.