Why have my property taxes increased?


The actual value of a property is determined by the Assessor. All real property in Colorado is reappraised on a two-year cycle, in odd-numbered years. In May 2019, Larimer County property owners received a Notice of Valuation (NOV) from the Assessor’s Office. 

  • To learn more about the assessment and valuation process, please visit their website or call the Assessor’s Office at (970) 498-7050.
  • To learn more about how property taxes are calculated, click here.
  • To learn more about how to read your property tax statement, visit our interactive guide here.


(For property owners in tax districts that include the Poudre School District)

In November 2019, voters approved a funding measure for Poudre School District R-1, ballot issue 4a. You can read more about this issue in the 2019 Notice of Election.

You will notice the changes in your mill levy amount for the POUDRE R-1 GENERAL FUND on your property tax statement as indicated in the image above. You can learn more about the 2019 Mill Levy Override and contact the Poudre School District or Board of Education with any questions or concerns by visiting their website.

How much did I save with Larimer County's temporary tax credit?

The temporary mill levy credit is a reduction of 0.537 mills of your Larimer County levied taxes, saving property owners a total of $3.5 million in property taxes. Use the calculator below to estimate the savings for your individual property.

Mill Levy Credit 

Calculate Temporary Mill Credit

Enter Assessed Value:
* .000537 =


  1. Property tax statements are mailed by the end of each January, to the owner of record, as listed on the tax roll, as of January 1. The tax roll is prepared and maintained by the County Assessor.

    If you have not received a tax statement by the first week of February, please contact the Treasurer's Office at (970) 498-7020 or email us and a duplicate statement will be mailed. Failure to receive a property tax statement does not exempt the taxpayer from timely payment of the taxes due.

  2. Changes of address are processed by the Larimer County Assessor's Office. They must be notified in writing and the request must contain the owner's signature. The Assessor's mailing address is P.O. Box 1190, Fort Collins, CO 80522. You may also use the online address change page to obtain a form to complete this request.

    Name changes and other changes to property title require that proper legal documentation be prepared and recorded at the Larimer County Clerk and Recorder's Office. It is recommended that you seek the legal advice of an attorney or local title company in order to properly execute this type of change.

  3. Yes, current taxes may be paid with your online banking service. Make sure to include your tax schedule number with the payment. Please allow two weeks for processing and mailing of the payment to our office, and take this delay into account when making tax payments near our deadlines. Payments not received in a  timely manner will be returned and additional interest will be due.

  4. Please make your payment to the Larimer County Treasurer, P.O. Box 2336, Fort Collins, CO 80522. For overnight payments, please mail to the 200 West Oak Street, Suite 2100, Fort Collins, CO 80521. To ensure accurate posting, please include the appropriate payment coupon and/or schedule number for each property you are paying.

    You may also come to our office. We're located on the second floor of the Larimer County Courthouse, 200 West Oak St, Suite 2100, Fort Collins, CO 80521. Office hours are Monday – Friday, 8am – 4:30pm.

    Handicap access is located at both entrances of the Larimer County Courthouse. The Treasurer's Office is also handicap accessible.

    Payments may also be made at most Larimer County banks. You must bring your tax statement with you when making payment at these locations. Banks will accept current year payments through July 31 only. See banks accepting property tax payments

  5. The settlement of tax liability rests with the buyer and seller or how it was handled at the closing by the title company. If you have questions, please contact your realtor or the closing title company.

  6. The Treasurer's Office issues a Certificate of Taxes Due to the title company. This provides both the buyer and seller all current taxing information.

  7. The County Assessor requires time to process your recorded deed. Please contact the Treasurer's Office if you have not received a property tax statement by the first week of February.

  8. If your mortgage company has paid your property taxes in the past, you will receive a postcard in January advising you of the taxes on your property rather than a full tax statement.  Your tax statement is available online, or you can contact our office by email or at (970)498-7020 to request a full statement be mailed to you in January.

  9. Ad valorem taxes are based on value only and not on the property owner's ability to pay. Any unpaid real property taxes become delinquent June 16. If the taxes remain unpaid, real property tax liens are sold in the last quarter of the year they become delinquent at the Tax Lien Sale. You have three (3) years to redeem the tax lien, after which point the lien holder has the option to apply for a Treasurer's Deed.

    For more information on personal property taxes, please review our personal property information page.

  10. The amount of annual taxes for a property is the result of the assessment process and the total mill levies for the taxing authorities that provide public services. The County Assessor establishes the value of all property for tax purposes. The taxing authorities use the assessed value to determine their mill levies. A mill is 1/10th of a penny or $1.00 revenue for each $1,000 of assessed valuation. Information concerning the tax levy can be obtained by contacting the governing boards of the taxing entities. Please see the next section for a listing of some of the Larimer County taxing entities.

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

    For residential lots with an improvement or mobile homes, the following example shows how to determine your property tax: 

    $300,000 Actual Value x 7.15% Assessment Rate = $21,450 Assessed Value
    $21,450 Assessed Value x 86.49 mills/1000 = $1,855.21 tax amount

    For commercial or unimproved residential lots, the following example shows how to determine your property tax: 

    $300,000 Actual Value x 29% Assessment Rate = $87,000 Assessed Value
    $87,000 Assessed Value x 86.49 mills/1000 = $7,524.63 tax amount

  12. Taxes pay for local government services. Your tax money supports and provides for the following areas:

    • Schools
    • Cities and towns
    • Police and fire protection
    • Health services
    • County and city roads
    • Water and sewer lines
    • Public libraries
    • Recreation and parks
    • Human services
    • Community corrections/court systems
  13. Real property is considered to be permanently fixed in nature (land and improvements on the land). Improvements include all structures, buildings, fixtures, fences, and water rights. Personal property is generally known as portable or moveable items such as equipment or furniture used in the production of income.

  14. Yes, a Tax Deferral (delay) Program is available to senior citizens, whereby the State of Colorado pays the taxes on your residence and holds a lien on your property until it is sold, or changes are made to your qualifications. Interest will be charged annually on each deferral. An individual must be 65 or older as of January 1 of the year claimed. Please contact the Treasurer's Office at (970) 498-7020 or email us for further information.

    Also, the Senior Citizens Property Tax Work-Off Program provides senior residents of Larimer County an opportunity to temporarily work for Larimer County and, in turn, reduce the burden of their property tax bills. To learn more about this program click here

  15. Eligibility for the Senior Homestead Exemption is determined by the Assessor's Office. Call the Assessor's Office at (970) 498-7050.

  16. Yes, the Treasurer collects City and County Improvement Liens when certified to the Office of the Treasurer in accordance with Colorado Revised Statutes. These liens are called Special Assessment Liens.

  17. To learn more click here.

  18. In November 2018, voters approved two funding measures for Thompson School District, ballot issues 5a and 5b. You can read more about these issues in the 2018 Notice of Election.

    You will notice the changes in your mill levy amounts on your property tax statement as indicated below.

    You can learn more about the Thompson School District Bond Projects and contact them with any questions or concerns by visiting their website.