Correct office term: Department of Revenue Property Assessment.
How the Montana system works
State property assessment offices administer valuation; county treasurers handle tax bills.
Before opening a property portal
- Identify whether the task concerns value, payment, recorded documents or an appeal.
- Use the official office or authorized portal listed on a completed county page.
- Do not assume a county office handles municipal assessment where the state uses city or town systems.
- Confirm filing dates for the current year before submitting an exemption or appeal.
Available county and local guides
Local property guides are being verified.
Draft records exist in the CMS but are blocked from publication until official links, search instructions and source statuses pass the content gate.