Frequently Asked Questions

Legal requirements for determining taxable value are provided by the Colorado Legislature and rules are promulgated by the State Department of Property Taxation to assure that all like real property in Colorado is valued nearly the same for tax equity. Although the state government does not share in county property taxes, state appropriations often are tied by law to local tax raising efforts, such as the state's School Equalization Act.

To file online, go to Personal Property declaration. You will need to know your PIN number and your online access code. If you do not know your codes, please contact the Assessor’s office.

Access a blank declaration form here.  You can fill it in online and email it to our office at assessorefile@weld.gov.

You can also request a spreadsheet from our office to file via email. Contact us at 970-400-3650 or email assessorefile@weld.gov.

Taxing authorities within Weld County include, but are not limited to, entities such as schools, fire protection districts, water and sewer districts, recreation districts, cities and towns, library districts and the county government itself.

Each year the county commissioners, city and town councils, school boards, and the boards of special districts are required by law to hold public hearings to determine their operating budgets, and the number of dollars that will be required from taxpayers. Public notice of such hearings is required.

After the taxing body has determined its tax requirements, it divides that amount by the assessed value of taxable property as determined by the Assessor. The result is called the mill levy.

A mill is a $1 revenue for each $1,000 of assessed valuation.
Ad valorem taxes means according to value.

For the 2025-2026 appraisals, the actual value assigned to vacant land, residential and commercial properties is based on sales and other market data from January 1, 2023 through June 30, 2024. This data gathering period, called the base period, is prescribed by Colorado statutes. However, if an insufficient number of comparable sales occurred during that timeframe, the assessor is authorized to analyze sales that occurred up to five years preceding June 30, 2024. Time Adjusted Sale Price includes market appreciation from the sale date to the end of the base period, June 30, 2024.

We analyze all sales which occur in the county to determine the valuations.
For commercial and industrial properties, we also use cost and income information to help estimate the values.
Changes in the economic data after the June 30, 2024 appraisal date cannot be considered until the next general reappraisal.

All property was reappraised in 2023, using market information from the January 1, 2021 through June 30, 2022 period.
For agricultural property, mobile homes and or businesses, the valuation process is explained in the following brochures: 

• Classification and Valuation of Agricultural Property(PDF, 335KB)
• Manufactured Homes in Colorado(PDF, 229KB)
• Property Valuation and Taxation for Business and Industry in Colorado(PDF, 282KB)

Colorado Statutes identify the month of May as the time for you to contact us concerning your valuation. Please keep in mind that you should provide information to support your estimate of value if it differs from that estimated by the Assessor’s Office.
Your value is our estimate of the value of the property as of June 30, 2024. This date is set by law. We can only consider sales and other market information from 2023 and the first six months of 2024 for values set for 2025 and 2026. If you purchased your property, or if you had an appraisal done after June 30, 2024, we cannot consider it in our review of values for 2025 or 2026. We may consider appeals for the valuation of the property only, not the amount of taxes you pay.

The assessment rate, which is used to calculate the assessed value, historically was determined by the Colorado Constitution and the Colorado Revised Statutes.  Starting in 2021 with the repeal of the Gallagher amendment, all rates are subject to change as a result of legislation, referendums and initiatives (ex: SB21-293 and initiative 27).

For 2025 the assessment rates are as follows:

*The 2025 residential assessment rates are assuming a 2024 to 2025 statewide actual value growth of less than or equal to 5%. If the actual value growth is greater than 5%, those assessment rates will be lowered by 0.1%.

Property taxes are calculated using the actual value of the property, the assessment rate, and the mill levy. 

• The actual value of each property is determined by the Assessor’s Office.
• For tax year 2025 residential property is projected to be assessed at 7.05% for school districts and 6.25% for all other local government. All other property will be assessed at 27%.
• Mill Levies are set annually in December by taxing authorities (i.e. school districts, towns, fire, etc.)

Residential Property Tax Calculation Example: 

School District Calculation: 

Actual Value X School Assessment Rate X School District Mill Levy = School Property Taxes Due 

 Local Government Calculation: 

Actual Value X Local Government Assessment Rate X Total Local Government Mill Levy = Local Government Taxes Due 

Final Tax Dollar Calculation: 

School Property Taxes Due + Local Government Taxes Due = Total Taxes Due 

All other property Tax Calculation Example:  

Actual Value X Assessment Rate (27%) X Total Mill Levy = Property Taxes Due 

The Assessor’s Office is required to appraise all real estate in Weld County. To conduct a fair and accurate appraisal, an onsite review of your property may be needed. This review may include measurements of the exterior and/or inspection of the characteristics of the interior (for example, counting the number of bedrooms and bathrooms or inspecting basement finishes and remodels).

If a Weld County Appraiser is at your door and you would like to verify his or her credentials, please call (970) 400-3650 or (720) 652-4255. If an Assessor’s Office tag is left on your door, please call (970) 400-3650 or (720) 652-4255 to set an appointment for the Appraiser to return to your property.

Although property can be owned by more than one person or entity, the Assessor’s Office is unable to show all the owner’s names on the documents we print due to space limitations on the forms.  If you receive a document from us and you would like to verify that we have all owners on record, please search the account on our property search. Once you have pulled up your property, all owners names should be displayed.

There are several ways to search for sales data for comparable properties. Please note that the 2025 and 2026 property values are based on sales data from 1/1/2023 to 6/30/2024. 

1. Use the ‘Comparable Property Sales Search’ to find property sales comparable to the property you are interested in.
   • You can search by Account # or address
   • Enter your criteria and select the Go button

      

2.  Use the ‘Property Data Search’ to search for sales on a map in a specific neighborhood/area. Sales are color-coded by year and displayed on Legend/Layer list.
   
   On the Property Data Search:
   • Search for your account or parcel number.
   • Choose the ‘Full Map Search’. The map will open to the account/parcel and will display the results on the left of the map.
   • Under ‘Tools’ at the top of the screen, select ‘Layers’ and then select ‘Sales’.
   • Under ‘Tools’ at the top of the screen, select the ‘Legend’ to see the years represented by the colors on the map.

      

3. Use the ‘Sales and Account Data Explorer’ to find and download sales based on characteristics as well as map-based selections.
   • Once here, you can use the filters and search to select records.
   • You can export the results by selecting on the tab with the four circles in the upper right corner and select Export.
   • Click on the Sales Map if searching for sales based on a specific location on the map.

Agricultural land values are established based on a landlord-tenant formula that utilizes income and expenses that are typical to the landlord. In the formula, the net income to the landlord is calculated using a published commodity price or grazing rental rate, which is averaged over 10 years, multiplied by the local production yield. The yield is based on soil classification or carrying capacity. Typical landlord expenses are also averaged over the same 10-year period and subtracted from the landlord’s gross income to arrive at the landlord’s net income. The net income is capitalized at a statutory rate of 13% to arrive at the value.