AppealDesk

Larimer County Property Tax Appeal, Colorado

Travis BunnTravis Bunn·Updated July 24, 2026

Larimer County is located in northern Colorado along the Wyoming border and serves as home to the Fort Collins-Loveland metropolitan area. With a population of approximately 380,000, the county seat is Fort Collins, which also houses Colorado State University. Property tax appeals are especially important here given the county's median home value of $513,000, significantly above both state and national averages, and an effective tax rate of 0.56% that results in median annual property tax bills of $3,054. While Larimer County's effective tax rate is lower than the national median of 1.02%, the high home values mean homeowners still face substantial tax bills, making accurate assessments critical for fair taxation.

Notable cities: Fort Collins, Loveland, Windsor, Estes Park

Median Home

$513,000

Tax Rate

0.56%

Annual Tax

$3,054

Population

380,384

On the typical Larimer County home, valued near $513,000 at the county’s effective tax rate of 0.56%, an over-assessment of even 10% means you are overpaying year after year until you appeal it. Here is how to find out if yours qualifies.

2026 Appeal Deadline: June 8, 2026

This year's appeal window has passed in most of Colorado. Order now and we re-run your numbers free when the window reopens, so your evidence is ready the day your next notice lands.

For the 2026 tax year, all property appeals must be filed with the Larimer County Assessor by June 8, 2026. The appeal window opens May 1, 2026, when Notice of Valuation forms are mailed. If you disagree with the Assessor's Notice of Determination (mailed June 30, 2026), you may petition the County Board of Equalization between July 1-15, 2026.

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Colorado homes beneath snow-covered mountains. Larimer County appeal guide.

How Larimer County Assesses Property

6.25%of market value

Assessed by: Larimer County Assessor's Office

Assessment cycle: biennial

Notices typically mailed: May 1

In Larimer County, properties are assessed on a two-year cycle with values based on market conditions as of June 30, 2024, and physical condition as of January 1, 2025. Colorado uses a split assessment system for 2026: residential property is assessed at 7.05% for school districts and 6.8% for local government purposes after a 10% reduction on the first $700,000 of actual value. For example, if your home's market value is $513,000, the assessed value for schools would be $36,167 ($513,000 × 7.05%) and for local government would be $31,282 (($513,000 - $51,300) × 6.8%), resulting in approximately $3,054 in annual taxes at Larimer County's effective rate of 0.56%.

The Appeal Process

Appeals are heard by the County Board of Equalization. CBOE hearings are conducted by independent referees appointed by the Board of County Commissioners. Property owners must submit all documentary evidence and witness lists at least 14 calendar days prior to the hearing. The referee's decision is binding unless further appealed to arbitration or state-level appeals.

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Step 1: Review your Notice of Valuation (NOV) received on May 1, 2026, which shows your property's actual value based on market data through June 30, 2024, and physical condition as of January 1, 2025.

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Step 2: File your appeal with the Larimer County Assessor between May 1 and June 8, 2026, using the online portal at larimer.gov/assessor, by email, mail (postmarked by deadline), fax, or in person at 200 W Oak Street, Fort Collins. There is no fee to file.

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Step 3: The Assessor's Office will review your appeal and mail a Notice of Determination (NOD) by June 30, 2026, with their decision on your property's valuation.

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Step 4: If you disagree with the Assessor's determination, schedule a hearing with the County Board of Equalization (CBOE) between July 1-15, 2026. Real property hearings are held July 13 through August 3, 2026, before independent referees appointed by the Board of County Commissioners.

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Step 5: Attend your CBOE hearing and present evidence including comparable sales, photographs, repair estimates, and appraisals. The CBOE referee's decision is submitted to the Board of County Commissioners and mailed within two weeks of your hearing.

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Step 6: If you disagree with the CBOE decision, you may request binding arbitration (residential fee is $150, potentially refundable) or appeal to the Colorado Board of Assessment Appeals, and ultimately to district court if necessary.

Required form: No specific form required - appeals can be filed online, by email, mail, fax, or in person through the Assessor's website portal

Filing Methods

online:File through the Larimer County Assessor's online portal at https://www.larimer.gov/assessor
email:Submit appeal directly to the Assessor's Office via email
mail:Mail to Larimer County Assessor, PO Box 1190, Fort Collins, CO 80522 (must be postmarked by June 8, 2026)
in-person:200 W Oak Street, 2nd Floor, Fort Collins, CO 80522 (Monday-Friday 8:00am-4:30pm)

Evidence to Bring

Comparable sales data from July 1, 2022 through June 30, 2024Professional appraisal reportPhotographs showing property condition as of January 1, 2025Documentation of property defects or needed repairsEvidence of assessment errors or incorrect property characteristics

Larimer County Assessor Contact

Larimer County Assessor's Office

Website: https://www.larimer.gov/assessor

Online Portal: https://www.larimer.gov/assessor

Hours: Monday-Friday 8:00am-4:30pm (walk-in service); phone assistance 7:30am-4:30pm

Tax Exemptions in Larimer County

Senior Homestead Exemption

Up to $100,000 exemption (50% of first $200,000 in actual value)

Exempts 50% of the first $200,000 in actual value of a primary residence from property taxation for qualifying senior homeowners.

Eligibility: Homeowners age 65+ prior to January 1 of application year who have owned and occupied the property as their primary residence for at least 10 consecutive years prior to January 1. Once approved, the exemption remains in effect until a disqualifying event occurs.Deadline: July 15 (annual deadline); new portability provisions allow seniors relocating within Colorado to apply January 2 - March 15

Disabled Veteran Property Tax Exemption

100% exemption on assessed value of primary residence (up to certain limits)

Provides property tax exemption for qualifying disabled veterans rated 100% permanently and totally disabled by the U.S. Department of Veterans Affairs.

Eligibility: Veterans who sustained a service-connected disability while serving on active duty and were rated by the U.S. Department of Veterans Affairs as 100% permanent and total disabled, or who have unemployability determination. Must have owned and occupied the property prior to January 1 of the current year.Deadline: July 1, 2026 for 2025 exemptions; applications open January 2, 2025

Gold Star Spouse Exemption

100% exemption on assessed value of primary residence (same as disabled veteran exemption)

Property tax exemption for surviving spouses of veterans who died due to service-related disabilities.

Eligibility: Surviving spouses of veterans who died due to service-related disabilities. Must own and occupy the property as primary residence.Deadline: July 1, 2026; applications open January 2, 2025

Larimer County Appeal Packet · $49

Comparable sales evidence, county-specific filing guide, and professional cover letter. Enter your address to get started.

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Frequently Asked Questions

What is the deadline to appeal my property taxes in Larimer County for 2026?
The deadline to file a property tax appeal with the Larimer County Assessor is June 8, 2026. The appeal window opens on May 1, 2026, when Notice of Valuation forms are mailed to property owners. If you disagree with the Assessor's Notice of Determination (issued June 30, 2026), you have a second opportunity to appeal to the County Board of Equalization by scheduling a hearing between July 1-15, 2026. Missing the June 8 deadline means you lose your right to challenge your property's valuation for the 2026-2027 tax years.
How do I file a property tax appeal in Larimer County online?
Larimer County offers convenient online filing through the Assessor's website at larimer.gov/assessor. You can file your appeal online, by email, by mail (postmarked by June 8), by fax, or in person at 200 W Oak Street, 2nd Floor, Fort Collins, CO 80522. There is no fee to file an appeal with the Assessor's Office. The online portal provides the most convenient and time-saving option for filing your property protest. You can also visit the Loveland campus at 200 Peridot Ave from May 19 through June 9 to file in person.
What is the Senior Homestead Exemption worth in Larimer County?
The Senior Homestead Exemption in Larimer County exempts 50% of the first $200,000 in actual value of your primary residence from property taxation, effectively providing up to a $100,000 exemption. To qualify, you must be at least 65 years old prior to January 1 of the application year and have owned and occupied the property as your primary residence for at least 10 consecutive years. Once approved, the exemption remains in effect until a disqualifying event occurs, and you do not need to reapply annually. New for 2025, Colorado seniors who relocate within the state can now transfer their exemption to their new home under certain portability provisions.
What happens at a Board of Equalization hearing in Larimer County?
At a Larimer County Board of Equalization (CBOE) hearing, you present your case before an independent referee appointed by the Board of County Commissioners to review the Assessor's property valuation. Hearings are scheduled between July 1-15, 2026, for real property, with actual hearings held July 13 through August 3, 2026. You must submit all documentary evidence and witness lists at least 14 calendar days prior to your hearing. The referee reviews your evidence, hears testimony from both you and the Assessor's Office, and issues a decision that is submitted to the Board of County Commissioners and mailed to you within two weeks. The CBOE decision is binding unless you pursue arbitration or further state-level appeals.
How much can I save by appealing my property taxes in Larimer County?
The potential savings from a successful property tax appeal in Larimer County depends on how much your property is overvalued and the county's effective tax rate of 0.56%. For example, if your home is valued at $513,000 (the county median) and you successfully reduce the assessed value by 10% to $461,700, you would save approximately $287 annually in property taxes. Over the two-year assessment cycle (2026-2027), that equals $574 in total savings. Given that Larimer County has a median annual tax bill of $3,054, even a modest 5% valuation reduction could save you $152 per year. The savings compound over time since assessments remain in effect for two years.
What evidence do I need for a Larimer County property tax appeal?
The strongest evidence for a Larimer County property tax appeal includes comparable sales data from properties similar to yours that sold between July 1, 2022, and June 30, 2024, since that's the period the Assessor used for the 2026 valuation. You should also provide photographs documenting your property's condition as of January 1, 2025, evidence of needed repairs or defects, documentation of assessment errors (incorrect square footage, room count, etc.), and ideally a professional appraisal. The goal is to demonstrate what your home would have realistically sold for on June 30, 2024, supported by actual sales of similar homes in your area. Written estimates for major repairs and any factors that negatively impact value (flood zone, busy road, etc.) also strengthen your case.
When will I receive my Notice of Valuation in Larimer County?
Larimer County mails Notice of Valuation (NOV) forms on May 1, 2026, to all property owners. The NOV is not a tax bill but rather an estimate of your property's market value as determined by the Assessor's Office based on market conditions as of June 30, 2024, and your property's physical condition as of January 1, 2025. This assessed value determines your property taxes for both 2025 and 2026. Your actual tax bill will arrive later in January from the Treasurer's Office. If you disagree with the value shown on your NOV, you must file an appeal by June 8, 2026, to challenge the assessment.
Can I appeal my property taxes if my home value decreased in Larimer County?
Yes, you can and should appeal your Larimer County property tax assessment if you believe your home's market value as of June 30, 2024, was lower than the Assessor's valuation, even if values have declined since then. The key date for the 2026 assessment is June 30, 2024, that's the market value date the Assessor used. To succeed, you'll need comparable sales from July 1, 2022, through June 30, 2024, showing similar homes sold for less than your assessed value. File your appeal between May 1 and June 8, 2026, through the Assessor's online portal at larimer.gov/assessor or in person at 200 W Oak Street, Fort Collins. There is no fee to appeal.

Official Resources

Larimer County Assessor Website →

Official Assessor website for property valuations, appeals, exemptions, and online filing portal.

Larimer County Board of Equalization →

Information on scheduling CBOE hearings and the second-level appeal process after receiving Notice of Determination.

Colorado Division of Property Taxation →

State-level property tax resources, assessment rate information, and guidance on Colorado property tax laws.

Senior and Disabled Veteran Exemptions →

Application forms and instructions for Senior Homestead, Disabled Veteran, and Gold Star Spouse property tax exemptions.

For state-wide appeal information including Colorado's assessment ratio and deadlines, see our Colorado Property Tax Appeal Guide →

Considering professional help with your appeal? Compare pricing, coverage, and pros/cons in our Best Property Tax Appeal Services (2026) or browse side-by-side service comparisons →

More Colorado Counties

Adams County (Brighton)Arapahoe County (Aurora)Boulder County (Boulder)Denver County (Denver)Douglas County (Castle Rock)Eagle County (Eagle)
← All Colorado property tax appeal info

Sources: https://www.larimer.gov/clerk/recording/boe | https://www.larimer.gov/assessor | https://www.ownwell.com/trends/colorado/larimer-county | https://www.larimer.gov/assessor/exemptions | https://worldpopulationreview.com/us-counties/colorado/larimer-county

Last verified: 2026-07-24