1. Online protest filing will be available for property owners beginning May 1, 2021 through June 1, 2021. Protests can be filed via US mail, through our online tool, by fax, by email, or by scheduling a telephone conference. 

    Due to COVID-19, and to protect the health and safety of citizens and our staff, we cannot accept in-person protests. Please note that our office hours are from 7:30 a.m. to 4:30 p.m., Monday through Friday.


  2. The following calculation is used to determine your property tax: 

    Actual Value x Assessment Rate x Mill Levy / 1000 = Property Tax

    For example:

    • $300,000 Actual Value x 7.15% Assessment Rate = $21,450 Assessed Value
    • $21,450 Assessed Value x 93.969 mills/1000 = $2,015.64 tax bill
  3. Colorado Amendment B, Gallagher Amendment Repeal and Property Tax Assessment Rates Measure was approved by Colorado voters on November 3, 2020, thereby allowing the state legislature to freeze property tax assessment rates at the current rates. Non-residential property is fixed at 29% and the residential assessment rate is fixed at 7.15%.

  4. All real property in Colorado is reappraised on a two-year cycle, in odd-numbered years. The actual value assigned to residential properties in 2021 and 2022 are based on market values as of June 30, 2020, as defined by sales of residential property in the 24-month period from July 1, 2018, to June 30, 2020. All sales are trended to the end of the data collection period.

  5. Each property in the county has a set of characteristics that are used by the appraisal model. Some examples include its location, living area square footage, basement square footage (finished and non), style, quality, garage square footage, lot features, etc. These variables may be reviewed on sold properties used in the model in order to estimate value of the properties. The model is then applied to both sold and unsold properties. See Impacts to Residential Values for more information.

  6. Foreclosures represent the transfer of the property ownership to the lender due to loan default. These transactions do not give evidence of market value; typically representing the amount of the lien held by the lender, not the entire property value. In some cases, the lien amount may be more than the value of the property. These transactions are excluded from the Assessor's analysis.

    However, re-sale of foreclosure properties are considered. Unless the condition of the property at the time of sale indicates otherwise, these sales are deemed to be arm's length transactions and are used by the Assessor in the valuation process.

  7. The Assessor's Office uses exterior measurements of homes and buildings. This may cause the Assessor's estimate of square footage to differ from that estimated by the builder or realtor since they frequently use interior measurements. The valuation procedures used by the Assessor are adjusted to account for the use of exterior measurements, which helps to assure correct values.

  8. According to Colorado Statute, the Assessor is required to gather and confirm sales within a time period of no less than eighteen-months ending on the June 30th of the year prior to a re-appraisal year, time adjusting each sale to the June 30th ending date. This data-gathering period is referred to as the Sales Study Period. For the 2021 and 2022 reappraisal, Larimer County is using 24 months of data for Residential property. This sales study period extends from July 1, 2018 through June 30, 2020. For vacant or commercial property the county uses 60 months of data. This period extends from July 1, 2015 through June 30, 2020.

  9. Market (sales) information is currently available for the entire 60-month period, (from July 1, 2015 to June 30, 2020) in the Assessor's Office. This information is also available online here Larimer County Sales Search. Local real estate offices may be able to provide you with sales information.

  10. According to Colorado statute, market data must be analyzed in every reappraisal cycle to determine property values. The minimum amount of data is set at 18 months prior to the appraisal date (June 30 of the previous even-numbered year). The maximum amount of data is 60 months prior to that date. Assessors are required to recognize the trends or market changes over that time and adjust all sales to the appraisal date. The actual value assigned to residential properties in 2021 and 2022 is based on market values as of June 30, 2020, as defined by sales of residential property in the 24-month period from July 1, 2018, to June 30, 2020. All sales are trended to the end of the data collection period.

  11. The level of taxation is determined by taxing authorities, not the Assessor. You can appeal your property's actual value or classification to the Assessor.

    Because your property's value is an important figure in the property tax equation, a different value or classification can have an effect on your property taxes. Questions about the level of taxation are to be directed to the taxing authorities.

  12. Click Senior Citizens & Disabled Veterans for property tax exemption information for senior citizens and disabled veterans.

  13. See these instructions regarding the conversion.

  14. If you believe your property qualifies for classification as agriculture property, please review the information found on our Agriculture Land page. The application can be found in the "Additional Information" section. Complete the application, attach any supporting documentation with the completed application, and submit it to the Larimer County Assessor's Office.

  15. Much of what your county assessor does is mandated at the state level. The Colorado Department of Property Taxation works with your state legislative committees to help develop the Assessors' Reference Library (ARL). This is a series of three manuals and a statutory index that addresses Colorado property assessment.

Bob Overbeck

Bob Overbeck, Larimer County Assessor

Read Biography
200 W. Oak Street, 2nd Floor
PO Box 1190
Fort Collins, CO 80522
Phone: (970) 498-7050
Hours:  Monday - Friday 7:30am - 4:30pm
Email: Overbebc@larimer.org