Montana Homestead Exemption Deadline 2027: April 15
The next statewide Montana homestead exemption filing date is April 15, 2027: 175 days from October 22, 2026. Counties may set different dates, so confirm with your assessor.
| Property Tax Assistance Program (PTAP) | By April 15 Owners who live in the home at least seven months a year and meet the income limits. How to apply: Apply with the Montana Department of Revenue by April 15. Official source (Montana Department of Revenue) ↗ · checked Oct 22, 2026 |
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