Fillable Online Understand The Geothermal Tax Credit ... 2026

1. Click ‘Get Form’ to open it in the editor.
2. Begin by entering your name as it appears on your Montana tax return and your Social Security Number or Federal Employer Identification Number in the designated fields.
3. For homeowners, focus on column C. Enter the physical address of the home where the geothermal system was installed, followed by the installation completion date.
4. Input the brand name and model number of your geothermal system in the specified field.
5. Complete lines 4 through 7 if this is your first year claiming the credit. Enter installation costs, any grants received, and calculate your eligible credit amount.
6. If applicable, complete lines 9 through 11 for carryforward credits from previous years, ensuring you accurately report any unused amounts.

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