Rate Breakdown

Property taxes in Larimer County are calculated by multiplying the assessed value (minus exemptions) by the total local millage rate.

How Property Tax Works in Larimer County

Larimer County assesses property values every four years, using the “true cash value” as defined by Colorado law. The County Assessor’s Office compares each property to recent sales of similar homes, accounting for size, age, condition, and location. The resulting assessed value is the basis for calculating your tax bill.

Once the assessment is finalized, the County Treasurer multiplies the assessed value by the combined millage rate—expressed as dollars per $1,000 of value—to determine the amount you owe. Millage rates are set by various taxing authorities, including the county, local school districts, cities, and special districts (e.g., fire, water, or transit). In 2024, the average combined millage rate for residential properties in Larimer County hovers around 71 mills, but the exact rate varies depending on the specific districts that serve your parcel.

Available Exemptions

Colorado offers several exemptions that can reduce your taxable value. In Larimer County, the most common are:

• Homestead Exemption: Reduces the taxable value of your primary residence by $150,000 (or $200,000 if you are age 65 or older, disabled, or a veteran). The exemption applies automatically if you own and occupy the property.
• Senior Citizen Exemption: Residents age 65 or older may claim an additional exemption of $30,000 if they meet income requirements (generally $30,000 or less in total household income).
• Disability Exemption: Qualifying disabled individuals can receive a $30,000 exemption, with the same income threshold as the senior exemption.
• Veteran Exemption: Disabled veterans can claim a $75,000 exemption for the portion of their home that is used as their primary residence. The exemption amount varies based on the veteran’s disability rating.

All exemptions must be applied for through the Larimer County Assessor’s Office, and supporting documentation (e.g., proof of age, disability rating, or veteran status) is required.

Payment Schedule & Deadlines

Property taxes in Larimer County are due in two installments:

• First installment: October 31. This payment covers the current fiscal year’s taxes.
• Second installment: January 10 of the following year. Failure to pay by this date incurs a 7 % penalty on the overdue amount.

Taxpayers may also choose to pay the entire bill in one lump sum by the October deadline to avoid any interest charges. The County Treasurer accepts payments online, by mail, or in person at the Treasurer’s office. Late payments beyond January 10 result in additional penalties and may trigger a tax lien.

Appealing Your Assessment

If you believe your property’s assessed value is inaccurate, you have the right to appeal. Follow these steps:

• Gather evidence: Collect recent comparable sales, appraisals, or photographs that support your case.
• File a Notice of Appeal: Submit the form to the Larimer County Assessor’s Office no later than the deadline posted on your Assessment Notice (typically 30 days after receipt).
• Prepare for a hearing: The Assessor’s Review Board will schedule a meeting where you can present your evidence. You may represent yourself or hire a qualified attorney/appraiser.
• Decision: The Board issues a written decision within 15 days of the hearing. If the outcome is unsatisfactory, you can further appeal to the Colorado Board of Revision and, ultimately, the state courts.

Timely appeals can result in a lower taxable value, which directly reduces your property tax bill. For assistance, contact the Larimer County Assessor’s Office or consult a local property tax professional.