HonestCasa logoHonestCasa
All Tax Guides
Updated 2025 Tax Year

Park County
Property Tax Guide

Everything you need to know about property taxes in Park 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
1.35% for residential up to $1.5M, 1.89% above $1.5M, 2.05% non-residential - varies by special districts
Exemptions
5+ Available
Section 1

How Property Tax Works

Park County, Montana operates under a property tax system that funds essential local services including schools, county government, fire protection, and various special districts. Property taxes are the primary revenue source for these services, with tax rates varying significantly based on your specific location within the county due to different combinations of special taxing districts such as school districts, fire districts, and library districts.

For the 2025 tax year, Park County residential property owners can expect effective tax rates ranging from approximately 1.35% for homes valued up to $1.5 million, and 1.89% for residential properties exceeding $1.5 million in market value. Non-residential properties face a higher rate of 2.05%. These rates represent the combined total of all applicable taxing districts and may vary considerably depending on which fire district, school district, and other special districts serve your specific property location within Park County.

Section 2

What Makes Up Your Tax Bill

ComponentRate RangeDescription
County General Fund0.15% - 0.25%Basic county services, administration, law enforcement
School Districts0.45% - 0.65%K-12 education funding, varies by district
Fire Districts0.05% - 0.15%Fire protection and emergency services
Library Districts0.02% - 0.05%Public library services
Water/Sewer Districts0.03% - 0.08%Municipal utility services where applicable
Total Residential (up to $1.5M)~1.35%Combined rate for FY 2025-2026
Total Residential (over $1.5M)~1.89%Combined rate for FY 2025-2026
Total Non-Residential~2.05%Combined rate for FY 2025-2026

Note: Actual rates vary significantly by location within Park County based on which special taxing districts serve your property. Contact the Park County Assessor's Office for your specific district combination.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Park 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 Park County are triggered by changes in property ownership, new construction, or major improvements that alter the assessed value after the annual assessment date. When you purchase a property or complete new construction, a supplemental assessment may be issued to account for the difference between the previous assessment and the current market value.

The supplemental tax is calculated by taking the difference between the new assessed value and the previous assessed value, then applying the current tax rate for the remaining months in the tax year. For example, if you purchase a home in Park County in January 2025 that was previously assessed at $200,000 but sold for $400,000, you would receive a supplemental tax bill covering the additional assessed value for the remaining tax year. The supplemental bill would calculate the tax on the $200,000 increase in assessed value, prorated for the months remaining in the fiscal year.

Example Calculation

Example 1: $300,000 Home

  • Market Value: $300,000
  • Assessed Value: $300,000
  • Less: Homestead Credit (if applied): -$3,000 assessment growth cap benefit
  • Net Taxable Value: $297,000
  • Annual Tax (1.35%): $4,010
  • Monthly Escrow: $334

Example 2: $600,000 Home

  • Market Value: $600,000
  • Assessed Value: $600,000
  • Less: Homestead Credit (if applied): -$6,000 assessment growth cap benefit
  • Net Taxable Value: $594,000
  • Annual Tax (1.35%): $8,019
  • Monthly Escrow: $668

Example 3: $1,000,000 Home

  • Market Value: $1,000,000
  • Assessed Value: $1,000,000
  • Less: Homestead Credit (if applied): -$10,000 assessment growth cap benefit
  • Net Taxable Value: $990,000
  • Annual Tax (1.35% up to $1.5M): $13,365
  • Monthly Escrow: $1,114

Note: All tax credits require application and are not automatic. Homestead credits limit assessment increases rather than reducing market value.

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 Park County require property tax escrow accounts, where you pay 1/12 of your annual property tax bill with each monthly mortgage payment. Your lender collects these funds and pays your property taxes directly to Park County on the due dates of November 30th and May 31st each year (note: first-half 2025 payment is due December 1st due to holidays).

Lenders typically conduct annual escrow analyses to ensure adequate funds are collected, and may adjust your monthly payment up or down based on changes in your tax bill. You should receive an annual escrow statement showing all deposits and payments. If you pay off your mortgage or choose to waive escrow (where permitted), you become responsible for making direct payments to Park County by the due dates to avoid penalties and potential tax lien procedures.

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 Park County for FY 2025-2026? A: Property taxes are due in two installments: November 30, 2025, and May 31, 2026. However, the first-half payment for 2025 is due December 1st due to the holiday schedule.

Q: What tax credits are available and do I need to apply? A: Park County offers several tax credits including homestead credits for primary residences, disabled veteran credits, and elderly/low-income credits. ALL credits require application and are not automatic - contact the Park County Assessor's office for applications and deadlines.

Q: How does the homestead credit work? A: The homestead credit limits annual assessment increases on your primary residence rather than reducing the market value. You must file an application to receive this benefit, and it caps assessment growth to help provide property tax stability.

Q: How often are properties reassessed in Park County? A: Montana requires property reappraisals every six years, with annual updates for market changes. You can appeal your assessment through the County Board of Equalization if you believe it's incorrect.

Q: What are the penalties for late payment? A: Late payments incur interest and penalty charges. After November 30th, properties become delinquent and subject to additional fees. Continued non-payment can result in tax lien sales.

Q: Can I pay my property taxes online? A: Yes, Park County offers online payment options. Starting January 1, 2026, all tax payments of $50,000 or more must be made electronically under Montana law.

Q: Why did my tax bill increase when my neighbors didn't? A: Tax bills vary based on assessment changes, improvements made to your property, and which special taxing districts serve your specific location within Park County.

Q: How do special district taxes affect my bill? A: Your total tax rate includes levies from all applicable districts serving your property location - county, school district, fire district, library district, etc. Different areas of Park County have different combinations of these districts, causing rate variations throughout the county.

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
Tax Doc
Quick Comparison of Property Tax Ratesrevenue.mt.gov
03
County
Annual Property Tax Changes by Countyrevenuefiles.mt.gov
04
Property Assessmentrevenue.mt.gov
05
Tax Doc
Property Tax FAQlccountymt.gov
06
Tax Doc
Apply for a Property Tax Exemptionrevenue.mt.gov
07
Tax Doc
Property Tax Helprevenue.mt.gov
08
Tax Doc
Tax Relief for Homesteads and Long-term Rentalsrevenue.mt.gov
09
HB0816.4 - 1 - Authorized Print Version – HB 816archive.legmt.gov
10
1 - Authorized Print Version – HB 816 HOUSE BILL NO. ...archive.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