Assessor

Protesting your Property value

Notices of Valuation (NOV) for taxable real property were mailed May 1, 2026. The NOV, which is also available online, describes the property you own and lists the actual value for the previous year and the current year. It is your right to appeal your property valuation and/or its classification.

Property owners are encouraged to submit their property protest. The deadline for all property owners to appeal their valuations is June 8, 2026. Late protests will not be accepted. This includes supplemental information to an existing protest.

Please choose one of these convenient options:

1. Our online protest tool (available until Monday June 8th, 2026 at 11:59pm)
2. Schedule a Phone consultation or In-Person appointment.
3. By mail to the Larimer County Assessor, P.O. Box 1190, Fort Collins, CO, 80522 (postmarked on or before June 8th, 2026).
4. Visit the Assessor’s Office in Fort Collins (200 W Oak St, 2nd Floor) to fill out a protest form 8:00am to 4:30pm Monday through Friday.
5. Loveland County building - May 18th through May 29th - at 200 Peridot Ave 8:00am to 4:30pm Monday through Friday (except Memorial Day). Administrative staff & appraisers will be onsite at this location May 18th through May 29th only.
6. Fort Collins Only! A temporary secure Drop Box located at Larimer County Administrative Services Building, 200 W Oak St, south entrance. Download the 2026 Real Property Protest form, complete, sign & email, fax, or drop it off.
7. By fax at 970-498-7070

For more information about the valuation process, please visit Understanding Property Values or see our Account Value Flow Example. If you have any  issues submitting your appeal through the online portal, please email our office at [email protected].