Garfield County, MontanaProperty records & tax offices
Links open the listed public-office or service-provider website in a new tab. This directory does not collect payments.
Find the right property record
Use the property portal for ownership and assessed value, the collector for a bill or balance, and the map for parcel location. Have the address, owner name, or parcel number ready.
Tax bills & filing dates
These are the dates and qualifications recorded in the directory. Confirm your tax year and current deadline with the official office and your property’s notice.
- Payment deadline
- Tax year 2026 real-property taxes: first payment due by 5:00 p.m. November 30, 2026 or within 30 days of the postmark on the tax notice, whichever is later; second payment due by 5:00 p.m. May 31, 2027. If a due date falls on a weekend or holiday, the next business day applies.
- Assessment appeal
- For the 2025–2026 valuation cycle, submit Montana DOR Form AB-26 within 30 days of the classification and appraisal notice, or file directly with the county Tax Appeal Board within 30 days. The 2026 fallback informal-review deadline was June 1, 2026. A written protest must also be filed with the county treasurer and disputed taxes paid under protest by the tax-payment due date.
Exemptions & appeals
View exemption application (opens in a new tab)Exemption filing
For tax year 2026, Montana homestead and long-term-rental reduced-rate applications were due March 20, 2026. The 2027 enrollment period opened May 4, 2026 and closes March 1, 2027.
Senior relief
Montana 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 under $45,000; refundable credit up to $1,150 claimed with Form 2 and Schedule 2EC. Montana also offers the income-based 2026 Property Tax Assistance Program and Disabled Veteran Assistance. See https://revenue.mt.gov/property/property-tax-help/montana-elderly-homeowner-renter-credit.
Valuation limits
No county-specific annual valuation cap was verified. Montana DOR administers the 2025–2026 reappraisal cycle and local treasurers apply locally adopted mill levies and special assessments. Eligible principal residences may receive the Montana homestead reduced tax rate, which is a rate reduction rather than a county assessed-value cap.
For a valuation appeal, use the appeal date in the tax and filing section above. Keep your notice, supporting evidence, and proof of submission.