June 2026 Updated

Montana Property Tax Guide: Rates, Payment, Exemptions & County Lookup

Find Montana property tax rates, county payment portals, assessor records, exemption programs, appeal steps, and calculator tools using one state-level guide.

Independent research guide. Always confirm exact tax bills, due dates, and payment amounts with your official county tax office.

Montana at a Glance โ€” 2024
Avg Effective Rate 0.60%
Median Annual Bill $1,896
Rate Range 0.20% โ€“ 1.26%
National Rank #19 of 50 States
Counties 40 counties

State averages are not your exact rate. Your bill depends on county, city, school district, exemptions, assessed value, and local levies.

Montana Tax Offices & Assessors

Official state-level resources will be added after verification. To manage your property tax, select your county from the directory below to access direct official links.

Montana Property Tax Estimate Tool

Estimate your annual property tax bill and monthly escrow payments in Montana. Select your county to load average local tax rates and apply exemptions.

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Tax Exemptions & Relief

Your Estimate

Tax Projection Summary

Estimated Annual Tax $0
Est. Monthly Escrow $0
Effective Rate Used 0%

๐Ÿ’ฐ Estimated Savings Applied

Based on selected property tax exemptions.

How Property Taxes Work in Montana

In Montana, property taxes fund essential local public services such as public schools, emergency services, county roads, and local health programs. Taxes are administered at the county level and calculated using local valuations and tax rates.

1

Assessment

Your county tax assessor determines the fair market value of your property. The taxable assessed value is calculated as a percentage of this market value, minus any exemptions.

2

Local Tax Rate / Millage

Local tax districts (counties, cities, and school systems) set millage rates annually. One mill is equal to $1 of tax per $1,000 of assessed property valuation.

3

Final Bill & Exemptions

Your final bill is calculated by applying the combined local tax rates to your taxable assessed value after subtracting any qualified exemptions.

Standard Calculation Formula
Estimated Tax = (Assessed Value โˆ’ Exemptions) ร— Local Rate
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Example Calculation for Montana

For a home valued at $300,000 in Montana, the annual property tax bill is approximately $1,808, based on the average effective rate of 0.60%. Your actual bill will vary based on your local county and city rates. Use our tax calculator to compute your estimate with local county rates.

How to Pay Property Tax in Montana

Property tax administration, billing cycles, and due dates are handled at the county or municipal level. Secure online payment is available across most jurisdictions.

  1. 1

    Locate Your Tax Bill or Parcel Number

    Locate the paper bill mailed by your local tax collector or look up your parcel ID on your home deed to search online.

  2. 2

    Open Your County Tax Office Website

    Navigate to your specific county guide below to find the direct verified link to your county treasurer or tax collector's official website.

  3. 3

    Verify Tax Year, Amount and Due Date

    Confirm you are paying the correct tax year, check the outstanding balance, and note the payment deadline to avoid interest charges.

  4. 4

    Choose ACH/eCheck, Card, Mail or In-Person Payment

    Select your preferred payment method. ACH/eCheck transfers typically have the lowest transaction fees, while credit card payments carry convenience fees.

  5. 5

    Save Confirmation and Receipt

    Keep your transaction confirmation number and payment receipt for your records and mortgage escrow verification.

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Important Payment Warning

Card payments may add convenience fees. ACH/eCheck is often cheaper. Always verify you are on the official county website or approved processor.

Montana Tax Deadline Checker

Check key tax dates and protesting time windows.

Estimated Deadline

๐Ÿ“‹ Do This Now Checklist:

Montana Property Tax Exemptions

Exemptions reduce your property's taxable assessed value to lower your final annual bill. Common programs may include:

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Homestead / Primary Residence Relief

Reduces the taxable assessed value of your primary owner-occupied home. Standard application required.

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Senior or Age-Based Relief

Provides valuation freezes, tax deferrals, or rate caps once you reach a certain age (typically 65).

๐ŸŽ–๏ธ

Veteran / Disabled Veteran Relief

Offers tax reductions or complete exemptions for honorably discharged veterans with service-connected disabilities.

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Disability or Local Relief

Provides property tax relief for residents with permanent disabilities or under local hardship programs.

Note: Eligibility and filing deadlines vary by county. Exemption applications in Montana must usually be submitted before local annual deadlines. Check exemption rules โ†’

Assessment Appeal

Think Your Montana Assessment Is Too High?

If you believe the county assessor has overvalued your property, you have the right to protest. Follow this practical checklist:

  • โœ“ Compare recent sales of similar homes in your neighborhood.
  • โœ“ Check your property record card for errors (square footage, bedrooms, etc.).
  • โœ“ Review the assessment notice date to find your filing window.
  • โœ“ Collect photos or repair estimates for any structural damage.
  • โœ“ File your appeal form before the county's strict annual deadline.
  • โœ“ Contact the county assessor or local appraisal review board for guidance.

All 40 Montana Counties

Select your county to access the official online payment portal, property search, and assessor contact. Data from 2024.

Lowest Above Avg Highest

Find Your Montana County Tax Rate

Choose your county to find payment links, assessor records, average tax rates, and bill lookup guidance.

Sort & Filter:

No matching county found.

Try the full county name (e.g., Harris, Cook, Orange).

Tax Rate Heatmap Scale
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Beaverhead County

Effective Rate
0.51 %
Avg Bill $2,069
View Details

Big Horn County

Effective Rate
0.56 %
Avg Bill $1,574
View Details

Broadwater County

Effective Rate
0.50 %
Avg Bill $2,384
View Details

Carbon County

Effective Rate
0.42 %
Avg Bill $2,281
View Details

Carter County

Effective Rate
0.20 %
Avg Bill $904
View Details

Cascade County

Effective Rate
0.77 %
Avg Bill $2,320
View Details

Chouteau County

Effective Rate
0.64 %
Avg Bill $1,566
View Details

Daniels County

Effective Rate
1.04 %
Avg Bill $1,610
View Details
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Deer Lodge County

Effective Rate
0.66 %
Avg Bill $1,803
View Details

Fallon County

Effective Rate
0.43 %
Avg Bill $1,220
View Details

Fergus County

Effective Rate
0.77 %
Avg Bill $1,769
View Details

Flathead County

Effective Rate
0.54 %
Avg Bill $3,120
View Details

Garfield County

Effective Rate
0.56 %
Avg Bill $1,052
View Details

Glacier County

Effective Rate
0.49 %
Avg Bill $1,391
View Details

Golden Valley County

Effective Rate
0.36 %
Avg Bill $1,132
View Details

Granite County

Effective Rate
0.42 %
Avg Bill $2,130
View Details

Hill County

Effective Rate
0.90 %
Avg Bill $1,980
View Details
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Judith Basin County

Effective Rate
0.50 %
Avg Bill $1,066
View Details

Lewis and Clark County

Effective Rate
0.73 %
Avg Bill $3,113
View Details

Liberty County

Effective Rate
1.26 %
Avg Bill $1,570
View Details

Lincoln County

Effective Rate
0.50 %
Avg Bill $1,615
View Details

McCone County

Effective Rate
0.74 %
Avg Bill $1,429
View Details

Meagher County

Effective Rate
0.42 %
Avg Bill $1,725
View Details

Mineral County

Effective Rate
0.50 %
Avg Bill $1,758
View Details

Missoula County

Effective Rate
0.78 %
Avg Bill $4,150
View Details

Musselshell County

Effective Rate
0.51 %
Avg Bill $1,287
View Details

Petroleum County

Effective Rate
0.57 %
Avg Bill $1,211
View Details

Pondera County

Effective Rate
0.73 %
Avg Bill $1,651
View Details

Powder River County

Effective Rate
0.32 %
Avg Bill $1,304
View Details

Ravalli County

Effective Rate
0.41 %
Avg Bill $2,380
View Details

Rosebud County

Effective Rate
0.51 %
Avg Bill $1,285
View Details

Sanders County

Effective Rate
0.46 %
Avg Bill $1,889
View Details

Silver Bow County

Effective Rate
0.84 %
Avg Bill $2,500
View Details

Stillwater County

Effective Rate
0.55 %
Avg Bill $2,319
View Details

Sweet Grass County

Effective Rate
0.36 %
Avg Bill $1,615
View Details

Toole County

Effective Rate
0.66 %
Avg Bill $1,908
View Details

Treasure County

Effective Rate
0.48 %
Avg Bill $1,364
View Details

Wheatland County

Effective Rate
0.48 %
Avg Bill $1,013
View Details

Wibaux County

Effective Rate
0.59 %
Avg Bill $598
View Details

Yellowstone County

Effective Rate
0.74 %
Avg Bill $2,832
View Details

Montana Property Tax โ€” FAQ

The most common questions about Montana property taxes, answered with 2024 data.

What is the average property tax rate in Montana?
Based on our latest 2024 data, the average effective property tax rate in Montana is approximately 0.60%. Rates vary significantly by county โ€” from a low of 0.20% to a high of 1.26% โ€” depending on local school district levies, municipal taxes, and special assessments.
How is property tax calculated in Montana?
Property taxes in Montana are calculated by multiplying your property's assessed value by the local millage (tax) rate. The county assessor determines assessed value, which is typically a percentage of market value. Your total bill may include levies from the county, municipality, school district, and special districts.
When are property taxes due in Montana?
Payment deadlines vary by county within Montana. Most counties bill annually or semi-annually; some offer quarterly installments. Select your specific county from the directory below to find official due dates and online payment portals.
What exemptions and relief programs are available in Montana?
Property tax exemptions and relief programs vary by county within Montana. Common programs may include homeowner, senior, disability, veteran, agricultural, or local relief options. Check your county's official tax office website or contact them directly to learn what programs you may qualify for and how to apply.
How do I pay property taxes online in Montana?
Online payment options vary by county within Montana. Most counties offer payment portals on their official tax office websites. Payment methods typically include ACH transfers (often with the lowest fee) and credit/debit cards (which may carry convenience fees). Always pay through your official county tax office website to avoid third-party processor fees.
How do I appeal my property tax assessment in Montana?
Appeal procedures and deadlines vary significantly by county within Montana. If you believe your assessment is incorrect, contact your local county tax office or assessor's office to understand your appeal options. They can explain the required timeline, documentation, and process specific to your county.
What is Montana's national rank for property tax rates?
Montana ranks #19 among all 50 states for average effective property tax rate, based on 2024 county-level data. Rankings reflect the average of county-level effective rates weighted by median home values.

Research Disclaimer

US Property Tax provides Montana property tax data for informational and research purposes only. Rates shown are derived from county-level 2024 data and represent averages โ€” your actual bill will vary based on your specific assessed value, applicable exemptions, and local millage rates. This site is not affiliated with any government agency. Always verify payment amounts and due dates with your official county assessor, treasurer, or tax collector website.