Tax relief and valuation review
A homestead exemption, senior-relief program, or valuation protest can change the amount a homeowner owes—but only if the filing reaches the right local office in the correct window. Use the verified county guidance below as your working checklist, then confirm the current form and deadline with Wibaux County Treasurer / Assessor / Montana Department of Revenue Property Assessment Division.
Relief programs
The filing guidance for this county is: The 2026 Montana homestead and long-term-rental reduced-rate enrollment deadline was March 20, 2026, after a state extension. The 2027 enrollment period is May 4, 2026–March 1, 2027. Official application portal: https://revenue.mt.gov/property/property-tax-changes/enroll. Use the official form or application channel, provide the residence and ownership documentation requested, and keep a copy of the submission.
Open homestead applicationMontana Elderly Homeowner/Renter Credit: age 62 or older by December 31, Montana resident at least nine months, owned/rented/leased a Montana home at least six months, and total household income less than $45,000; refundable credit up to $1,150. File through the Montana DOR TransAction Portal/Form 2 Schedule 2EC. Official information: https://revenue.mt.gov/property/property-tax-help/montana-elderly-homeowner-renter-credit.
No county-specific annual assessed-value cap was verified. Montana DOR administers the 2025–2026 reappraisal cycle and local taxing jurisdictions set mill levies from certified taxable values. Montana’s 2026 homestead reduced-rate structure is a tax-rate reduction, not an assessed-value cap.
Appealing an assessment
Use the valuation notice and the county’s published protest guidance to determine the last day to file. Do not assume the payment deadline controls the appeal.
Gather comparable sales, photographs, repair records, appraisal evidence, property characteristics, and any documentation that explains why the assessed value is incorrect.
Submit through the official channel, save the confirmation, and attend the board or review hearing if one is scheduled. An appraiser or attorney can help evaluate evidence when the value or stakes are substantial.
The verified protest guidance for this county is: Submit Montana DOR Form AB-26 within 30 days of the date on the 2025–2026 classification and appraisal notice; if that deadline was missed, informal review or a direct local county tax appeal board appeal was available through June 1, 2026. A property-tax protest must also be filed with the county treasurer and the disputed tax paid under protest by the payment due date. Official process: https://revenue.mt.gov/property/appraisal/appeals-and-reviews. If the language is not a specific calendar date, contact the office promptly for the current notice and board-review schedule.