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 Big Horn County Assessor; Big Horn County Treasurer (property-tax collection).
Relief programs
The filing guidance for this county is: March 1, 2026 for the 2026 Wyoming 25% homeowner exemption owner-occupancy affidavit; the local County Assessor reviews eligibility. Use the official form or application channel, provide the residence and ownership documentation requested, and keep a copy of the submission.
Open homestead application2026 Wyoming long-term homeowner exemption: an owner or spouse age 65 or older who has paid Wyoming residential property taxes for at least 25 years, owns and occupies the primary residence at least 8 months per year, and applies annually may receive a 50% exemption; the 2026 statewide statutory deadline was the fourth Monday in May (May 25, 2026), subject to county administration. Veteran exemptions and the Wyoming Department of Revenue property-tax refund program may also apply; eligibility and filing rules vary.
no local annual valuation-growth cap was identified. Wyoming requires annual fair-market-value assessment (productive-capability valuation for agricultural land); the 25% owner-occupied homeowner exemption and 50% long-term homeowner exemption reduce taxable value but do not cap assessed-value growth.
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: Within 30 days of the mail date on the 2026 assessment schedule; Big Horn County states this review deadline but does not publish a specific 2026 mail date. If the language is not a specific calendar date, contact the office promptly for the current notice and board-review schedule.