HonestCasa logoHonestCasa
All Tax Guides
Updated 2025 Tax Year

Glacier County
Property Tax Guide

Everything you need to know about property taxes in Glacier County, MT. Rates, due dates, exemptions, and how it affects your monthly payment.

10 Official Sources
8 min read
Calculate Your True CostMortgage Calculator
Quick Facts
Tax Rate
1% to 1.89% of market value (varies by district), agricultural land 2.05%
Exemptions
4+ Available
Section 1

How Property Tax Works

Glacier County, Montana operates under a property tax system that funds essential local services including schools, roads, emergency services, and county operations. Property taxes are administered by the Glacier County Assessor's office and collected by the County Treasurer, with significant changes taking effect in 2025 regarding tax calculation methods and rate structures.

The county's property tax system includes both county-wide levies and special district assessments that vary by location within Glacier County. Effective tax rates typically range from approximately 1% to 1.89% of market value, depending on property type, value, and the specific taxing districts where your property is located. Agricultural land faces a 2.05% rate, while multifamily rental properties valued over $2 million will see the maximum graduated rate of 1.89% under the new 2025 structure. Actual tax bills depend on your property's assessed value, applicable tax credits (which require application), and the combination of local taxing districts serving your area.

Section 2

What Makes Up Your Tax Bill

ComponentRate/Mill LevyDescription
County General FundVariesBasic county operations and services
School DistrictsVariesElementary and high school funding
Agricultural Land2.05%Specific rate for agricultural properties (FY 2025-2026)
Multifamily Rental (>$2M)Up to 1.89%Maximum graduated rate for large rental properties (FY 2025-2026)
Special DistrictsVariesFire districts, road maintenance, other local services
State EducationVariesState-mandated education funding

Note: Tax rates for FY 2025-2026 vary significantly by location within Glacier County due to different combinations of special taxing districts. Contact the Glacier County Assessor at (406) 873-3015 for specific mill levies applicable to your property address. Montana's 2025 property tax changes include new graduated rate structures for various property classifications.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Glacier County, property taxes are due in two installments:

Pro tip: If you pay through mortgage escrow, your lender splits these payments across your monthly mortgage. If you pay directly, set calendar reminders to avoid late penalties.
Section 4

Supplemental Tax Bills

Supplemental taxes in Glacier County are additional property tax assessments that occur when there are mid-year changes to property ownership, value, or use. Common triggers include new construction completion, major improvements, changes in property classification, or ownership transfers that affect assessment values.

When supplemental taxes are triggered, the County Assessor calculates the difference between the original assessment and the new assessment, then applies the current tax rate to determine additional taxes owed. For example, if you complete a $100,000 home addition in March and your effective tax rate is 1.2%, you would owe supplemental taxes of approximately $1,200, prorated from the completion date through the end of the tax year. These supplemental assessments are billed separately from regular property tax bills and have their own due dates as determined by the County Treasurer.

Example Calculation

Example 1: $300,000 Home

  • Market Value: $300,000
  • Assessed Value: $300,000 (Montana assesses at market value)
  • Homestead Tax Credit Applied: -$1,200 (example, requires application)
  • Net Taxable Value: $298,800
  • Estimated Tax Rate: 1.2%
  • Annual Tax: $3,586
  • Monthly (if escrowed): $299

Example 2: $600,000 Home

  • Market Value: $600,000
  • Assessed Value: $600,000
  • Homestead Tax Credit Applied: -$1,200 (requires application)
  • Net Taxable Value: $598,800
  • Estimated Tax Rate: 1.3%
  • Annual Tax: $7,784
  • Monthly (if escrowed): $649

Example 3: $1,000,000 Home

  • Market Value: $1,000,000
  • Assessed Value: $1,000,000
  • Homestead Tax Credit Applied: -$1,200 (requires application)
  • Net Taxable Value: $998,800
  • Estimated Tax Rate: 1.4%
  • Annual Tax: $13,983
  • Monthly (if escrowed): $1,165

Note: Tax credits shown require annual application and approval. Actual rates vary by specific location within Glacier County based on local taxing districts.

See How Taxes Affect Your Payment

Property taxes are just part of your total monthly cost. Get the full picture.

Calculate Now
Section 5

Escrow & Property Taxes

Most mortgage lenders in Glacier County require borrowers to maintain an escrow account for property tax payments, especially when the loan-to-value ratio exceeds 80%. Your lender collects monthly escrow payments along with your mortgage payment, then pays your property taxes directly to Glacier County when due.

Escrow payments are calculated by estimating your annual property tax bill and dividing by 12 months, often with a cushion for potential increases. Lenders typically review and adjust escrow payments annually based on actual tax bills received. In Glacier County, property taxes are due on different dates depending on your location - January 29, 2026 for Cut Bank area properties and January 26, 2026 for Browning area properties. Your lender should coordinate payments before these deadlines to avoid penalties. You can verify that your lender has made timely payments by checking with the Glacier County Treasurer's office or accessing online payment records.

How HonestCasa Helps
  • Understand whether your escrow is set correctly
  • See how rising taxes will change your monthly payment
  • Plan ahead instead of being surprised by "shortage" letters
Section 6

Frequently Asked Questions

Q: When are property taxes due in Glacier County for the current tax year? A: Due dates vary by location within Glacier County. For the Cut Bank area, taxes are due January 29, 2026. For the Browning area, taxes are due January 26, 2026. Electronic payment is required for payments over $50,000 starting January 1, 2026.

Q: What homestead tax credit is available and how do I apply? A: Montana offers a homestead tax credit that caps assessment increases rather than reducing market value. This credit must be applied for annually and is not automatic. Contact the Glacier County Assessor's office at (406) 873-3015 for current application forms and deadlines.

Q: Are there other tax credits available that require application? A: Yes, Montana offers various tax credits including disabled veteran exemptions, elderly/low-income credits, and agricultural exemptions. All credits require separate applications with specific deadlines. Contact the County Assessor for a complete list and application requirements.

Q: How often are properties reassessed in Glacier County? A: Montana requires properties to be reassessed at market value annually, with reappraisal cycles varying by property type. The County Assessor maintains current market valuations based on sales data and periodic physical inspections.

Q: How do I appeal my property assessment? A: Assessment appeals must be filed with the County Tax Appeal Board within 30 days of receiving your assessment notice. Contact the Glacier County Assessor's office for appeal forms and specific procedures.

Q: What are the penalties for late property tax payments? A: Glacier County imposes penalties and interest on late property tax payments. Contact the County Treasurer's office at (406) 873-3013 for current penalty rates and payment options for delinquent accounts.

Q: Can I pay my property taxes online? A: Yes, Glacier County offers online property tax payment options. Visit the County Treasurer's website or contact their office for online payment instructions and any associated processing fees.

Q: How do special district taxes affect my bill? A: Special districts for fire protection, roads, and other services add separate mill levies to your tax bill. Your total rate depends on which special districts serve your specific property location within Glacier County. The Assessor's office can provide a breakdown of all applicable districts for your address.

Verified Sources

Backed by 10 Official Government Sources

Every fact in this guide is sourced from official county, state, and federal documents.

01
Tax Doc
2025 Tax Information for Montana Property Ownersrevenue.mt.gov
02
Mill Levy Changes 2025 2026archive.legmt.gov
03
County
Annual Property Tax Changes by Countyrevenuefiles.mt.gov
04
County
Glacier County Montana |glaciercountymt.gov
05
Property Assessmentrevenue.mt.gov
06
Online Servicesrevenue.mt.gov
07
Montanairs.gov
08
Tax Doc
Property Taxesgov.mt.gov
09
State
Date 2/14/2023 - Montana State Legislaturearchive.legmt.gov
10
1 - Authorized Print Version – HB 816archive.legmt.gov
All sources verified as of 2025 Tax Year

See the Full Picture of Your Home Costs

Property taxes are just one piece of homeownership. HonestCasa helps you understand your total monthly cost and explore safe ways to access your home equity.

Total Monthly Cost

Mortgage + taxes + insurance + HOA

Equity Growth

Track how your equity grows over time

Safe Equity Access

Options for projects or debt payoff

Run Your ScenarioTry Calculator

Free • No credit check • 2-minute estimate