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County Assessor


Lanuage of Assessment: A glossary of terms

Frequently Asked Questions (FAQ)

Statements of Consideration (SOC)

Real Property (Residential & Commercial)

Agricultural Lands

Commercial Personal Property

Manufactured Homes

Review and Appeal

Property Tax Forms (Locally Assessed Forms)

Tax Relief Programs:

Veterans Exemption

Property Tax Refund Program (Administered by the Treasurers Office)

Elderlly/Disabled Tax Rebate (Contact your Senior Citizens Center)

Park County Assessor   


Frequently Asked Questions (FAQ)

Are appraisers working in the Assessor's office certified?
Yes. Wyoming statute requires that all persons responsible for determining value for property assessment purposes be certified by the state as a Property Tax Appraiser. Each appraiser must complete coursework in appraisal on an ongoing basis to acquire and maintain this certification.

When can I expect to have your office complete an onsite inspection?
We physically inspect all properties within Park County every four years. We also inspect properties when a building permit is issued or address assigned. Inspections are done as deemed necessary if you disagree with the value established by the Assessor's office; also, upon request of the property owner.

What should I do if I disagree with the value on my assessment?
You must contact the Assessor's office within 30 days of the mail date on the assessment schedule. Bring with you any information that you would like the Assessor to consider regarding the value of your property.

Why did my value change?
Many factors affect market value: a change in property characteristics, a recent sales, supply and demand, interest rates, labor and material costs to mention a few.

What is an improvement?
These consist of structures, concrete, fencing, sheds, etc. These are considered improvements to the land.

What is real property?
Real property is defined as land and all things attached to the land.

How did you arrive at the value of my property?
Industry-accepted mass appraisal procedures and methodologies are used. Items such as location, property characteristics, sales information, etc., are analyzed each year to determine the estimated fair market value.

How does the Assessor acquire actual sales prices?
Wyoming statute 34-1-142 requires a statement of consideration be completed whenever a deed, contract or other document transferring legal title is recorded. Information such as the date of the sale, purchase price, terms of sale, etc., are required. This information is not public.

Can I review sales information?
Persons appealing their assessment may review the sales that were used to determine the fair market value of their property. The review period is limited to the 30-day appeal period. The property owners may not further disclose the sales to other persons. The sales information may be introduced during a formal appeal, but further disclosure is prohibited.

Can I get a copy of the appraisal?
Field appraisers do not determine value. The characteristic information they collect along with sales information will be used to calculate the estimated fair market value for next assessment year. If you are interested in getting a copy of the sketch and characteristics, please contact the office either by phone or visit and we would be happy to give you a copy. Actual calculations made to determine your property value for property tax purposes are available when assessment schedules are mailed.

I called your office and they told me there was more than just one market value. Is that right?
That is correct. Market value is simply an opinion of value. There is no one correct answer. The value determined by our office is as of January 1 of each assessment year. The state of Wyoming has statutes and rules that this office must follow to determine the value of all properties.

When are taxes due, and can I pay early?
Tax notices are usually mailed out in September, although State Statutes say that they can be mailed anytime before October 11th. You cannot pay your taxes early unless you are moving a mobile home or transferring title on a mobile home.  There are two options for when you can pay your taxes.  One option is to pay the first half by September 1 of the current tax year.  They are delinquent after November 10.  The second half is then due March 1 of the next tax year.  They are delinquent after May 10.  You also have the option of paying your taxes in full by December 31 of the current tax year without penalties.

Why am I still getting a tax notice for a property I sold? Why is there a name on my notice that should not be there anymore?
Generally the answer would be that the deed was not filed until after January 1.  State Statute says that assessments and tax notices must be sent to the owners of record as of January 1.  The Treasurer’s Office sends a copy of the notice to the new owner if that information is available.  If the deed was done before January 1, it is possible that there was an error on it or that it was not filed with the Clerk’s Office until after January 1.  Feel free to give us a call and we will look into it.

What is personal property?
Property that is not real. Some examples of personal property are: furniture and fixtures, such as desks, chairs, tables, couches, file cabinets, display counters, shelves, machines, computer equipment, software, phones, fax machines, copiers, oil field equipment, heavy equipment, etc.

What is the deadline for reporting personal property?
March 1st of each assessment year. Forms are mailed in early December of each year. Information provided the previous year is included. Businesses are asked to make any additions or deletions and return the form to the Assessor. If there have been no changes, owners indicate so, sign and return the form. The reporting deadline may be extended to April 1st upon written request, provided that request is made no later than February 15th.

Is agricultural land valued differently than other lands?
In Wyoming, land meeting the criteria for agricultural land classification is valued based on the land's productive capability under normal conditions. Landowners must complete a sworn affidavit stating the land has met the legal requirements for such classification.

Will my taxes go up if the market value of my property increases?
Fair market value is only a portion of the formula for calculating tax amount.The formula for determining actual tax dollars is as follows:

What is the level of assessment in Wyoming?
The level of assessment is the percentage of the market value that determines the assessed value. In Wyoming, the level of assessment for minerals is 100%, industrial use properties is 11.5%; and all other properties 9.5%. This percentage is determined by the legislature.

What is a Mill Levy?
This is the number of dollars in taxes that a property owner must pay for every $1,000 of assessed value. The County Commissioners establish the total mill levy for each tax district based on budget requests from the various taxing entities within the districts boundaries.

How is the Mill Levy determined?
In order to determine the mill levy for each tax district, taxing entities must submit their final budget requests. The budget, less anticipated revenues from non-property tax sources, is divided by the assessed value to obtain the tax rate or mill levy. Assessed values determined by the assessor and values of state assessments (those industries valued by the Department of Revenue, such as utilities, minerals, etc.) are combined to determine the total assessed value within the taxing entities boundaries. An individual assessed value is multiplied by the total mill levy for the tax district to obtain an individual tax amount.

What are tax districts?
They are the geographic area on which a taxing entity has the right to levy taxes. These entities include school districts, counties, cities, water or sewer districts, fire districts or other specially formed districts as designated by state statute.