Have you received your classification and appraisal notice? Are you wondering what the next step is?

Step 1: Check your property information on Property.MT.gov

First, we want to make sure you do not have any questions regarding your notice or your property characteristics. If you would like to review your properties characteristics, such as number of bedrooms, bathrooms, or square footage go to property.mt.gov to view details about your property’s characteristics and valuation.

Step 2: Get your questions answered by our local staff

You can also contact your local Department of Revenue office if you would like to talk to an appraiser about the department’s determination of market value for your property. We will make every effort to address your concerns and resolve any possible misunderstandings.

If you have no additional concerns with the information provided, the property values reported in your notice will be used to calculated your property tax bill sent to you by your local county treasurer’s office.

If you disagree with the valuation or there are characteristics that should be corrected, below is a check list of the items you will need to fill out the Request for Informal Classification and Appraisal Review (Form AB-26) correctly. In some cases you will need to attach or include supporting documentation.

Step 3: Reqeuest an informal review

Request for Informal Classification and Appraisal Review (Form AB-26) Check List

Before you begin filling out your Form AB-26, be sure to have he following information easily available:

• Your classification and appraisal notice. See the sample notice.

• Assessment Code

• Geocode

• If you are requesting an overall valuation change not related to physical characteristic changes to the property, you will need the following:

• Current Assessed Value displayed on your notice.

• Your own estimate of market value as of January 1, 2016 (department’s valuation date).

• Supporting documentation (if you have with dates, purpose and details provided.)

• Purchase price of subject property within six months of the January 1, 2016 valuation date.

• Fee appraisal within six months of the January 1, 2016 valuation date.

• Comparable property sales/listings within six months of the January 1, 2016 valuation date.

• Building Remodel/Construction – Builder’s cost breakdown worksheet.

•Income Producing Commercial or Industrial Property – Detailed information including rental income, operating expenses and income statements and strategic plans/pro forma.

• You will need to create an ePass account, with username and password, if you choose to submit a Form AB-26 online.

Step 4: Formal appeal process

If we haven’t been able to come to an agreement through the Informal Review process you can appeal our decisions through formal channels:

County Tax Appeal Board

The County Tax Appeal Board (CTAB) is an independent board appointed by the county commissioners and not connected to the Department of Revenue.

You can learn more about the CTAB process on the Montana Tax Appeal Board’s Appeal Process page.

Montana Tax Appeal Board

The Montana Tax Appeal Board (MTAB) is an administrative board tasked with providing an independent and neutral review of the Department of Revenue’s property valuation. Board members are appointed by the governor.

MTAB decisions are final unless you pursue district court action.

You can learn more about MTAB and the appeals process on the Montana Tax Appeal Board website.

Court of Appeal

To appeal decisions made by the Montana Tax Appeal board, you will need to file with a District Court

Understanding your classification and appraisal notice

Below is an example of a data table from a residential classification and appraisal notice with the assessment code, geocode and current market value displayed in addition to an explanation of how your estimated 2017 general taxes were calculated.

Sample Property Classification and Appraisal Notice

Download a Printable PDF

Contact us with questions

if you have questions or would like to request forms, please contact your local county office.

Or, call our call center:

Phone: (406) 444-6900

Telephone Device for the Deaf: (406) 444-2830


Q. How did the department determine the current assessed value on my property?

A. The department uses a mass appraisal process for valuing properties across the state as of a given date utilizing standardized procedures and statistical testing. For the current appraisal cycle (tax years 2017-2018), January 1, 2016 was the statewide valuation date. Within the mass appraisal process, properties are valued using the sales comparison, cost or income approach to value. On your classification and appraisal notice, the current assessed value is the department’s determination of the market value of your property as of January 1, 2016. 15-7-111, MCA; 15-8-201(2)(a), MCA

Q. What is the significance of the January 1, 2016 valuation date?

A. Montana law specifically requires all residential, commercial, agricultural and industrial property to be valued on the same date every two years to equally distribute the tax burdens among property owners across the state. January 1, 2016 is the valuation date for residential, commercial, agricultural and industrial property for the current appraisal cycle (2017-2018). Forest land property has a six-year appraisal cycle (2015-2020) with a valuation date of January 1, 2014. 15-6-133, MCA; 15-6-134, MCA; 15-7-111, MCA

Q. How is property tax determined?

A. The amount of property tax is not determined solely by a property's value. To determine its taxable value, the property's market value is multiplied by a tax rate the legislature sets. The taxable value is then multiplied by the millage rate that city and county governments, school districts and other taxing jurisdictions establish to provide services in the taxpayer's area. Any special assessments specific to your levy district are added to the property tax amount on your property tax bill by your county treasurer’s office.

Local county governments set their mill levies in September, annually. You can estimate your property taxes using the prior year millage rate shown on the notice. To use the prior year millage rate number in your calculation, you need to move the decimal point three spaces to the left.


The prior year millage rate is 507.710 so you would use .507710 in your calculation. One mill is equal to 1/1000 of a dollar or 0.1 percent.

Q. What is real property?

A. Real property includes land and improvements attached to the land (buildings and structures). For clarification on the term “improvements,” 15-1-101(i), MCA states the term “improvements” includes all buildings, structures, fences and improvements situated upon, erected upon or affixed to land.

Q. Where can I find a description of my property online?

A. Go to the department’s Property Assessment Division’s web portal at property.mt.gov. You can search for your property by geocode, assessment code, address or name.

Q. How often does the department send out classification and appraisal notices?

A. Property classification and appraisal notices are mailed out annually for properties that had one of the following changes in the past year: 15-7-102, MCA

• Change in property ownership or legal description as a result of a parcel split or combination.

• Change to the property’s value resulting from an informal review value adjustment or from a county or state tax appeal board decision.

• Property value increase/decrease reflecting a change to the property (for example, a new structure, an addition to the property or the removal of an old structure).

• Change in the classification of the property.

If your property did not have any of the above listed changes, you will get a classification and appraisal notice the first year of each appraisal cycle.

Q. Is the current taxable value figure on my classification and appraisal notice the amount of property tax I owe?

A. The classification and appraisal notice is not a tax bill. After your local treasurer has set the mill levy for your county (most likely in September or October), you will be able to estimate your current year property taxes by using the following formula. 15-6-133, MCA; 15-6-134, MCA; 15-6-143, MCA

Current Assessed Value x Tax Rate = Current Taxable Value

Current Taxable Value x Current Year Millage Rate = Current Year Property Tax Amount (One mill is equal to 1/1000 of a dollar or 0.1 percent).

Please keep in mind that additional special fees from your local government could also be added to your property tax bill for street maintenance, irrigation, sewer, fire service, garbage and other services.

Q. Does the department value property at its full value?

A. State law requires the department to value real and personal property at 100% of its market value, which is the value at which property would change hands between a willing buyer and a willing seller when both have reasonable knowledge of relevant facts and neither is under any compulsion to buy or sell. Timber and agricultural land are valued by their productivity value rather than their market value. 15-8-111, MCA