Rate Breakdown

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

How Property Tax Works in San Miguel County

Every year the San Miguel County Assessor determines the taxable value of each parcel by first establishing its market value and then applying Colorado’s statewide assessment ratio (7.15 % for residential, 8 % for commercial). The resulting assessed value is the base on which local millage rates are multiplied. Millage rates are expressed in “mills” (one‑tenth of a cent) and reflect the combined funding needs of the county, school districts, fire‑protection districts, and other taxing entities. In 2024 the typical combined rate in San Miguel County hovers around 90‑100 mills (≈$0.90‑$1.00 per $1,000 of assessed value), but exact rates vary by address.

For example, a home with a market value of $350,000 would have an assessed value of $350,000 × 7.15 % = $25,025. With a combined millage of 95 mills, the annual tax bill would be $25,025 × 0.095 = $2,377.38 before any exemptions are applied.

Available Exemptions

Colorado offers several state‑wide exemptions that can reduce your assessed value before the millage is applied. Most of these are also recognized by San Miguel County.

• Homestead Exemption – Up to $200,000 of the market value of a primary residence is exempt from assessment. This is automatically applied if the property is owner‑occupied.
• Senior Citizen Exemption – Residents aged 65 + who meet income limits (generally $50,000 household income) may receive an additional $150,000 exemption on the market value.
• Disability Exemption – Qualified disabled taxpayers can claim an extra $150,000 exemption, provided they meet the same income thresholds as seniors.
• Veteran Exemption – Veterans who are 100 % disabled, or who have a service‑connected disability of at least 60 %, qualify for a $100,000 exemption. Surviving spouses of veterans killed in action are also eligible.

These exemptions are cumulative; a senior veteran with a disability could receive a combined exemption of up to $450,000.

Payment Schedule & Deadlines

San Miguel County follows Colorado’s standard tax payment calendar:

• First installment – 45 % of the total bill is due by March 15.
• Second installment – The remaining 55 % is due by August 31.
• Late payment – If either installment is unpaid after the due date, a 4 % penalty plus 1 % interest per month (or fraction thereof) accrues.
• Installment options – Taxpayers may split payments into monthly autopay, credit‑card, or electronic bank‑transfer plans offered through the county’s online portal.

Paying early does not reduce the amount due, but it eliminates any risk of penalties and allows you to lock in the current year’s rate before potential millage adjustments.

Appealing Your Assessment

If you believe your assessed value is inaccurate, you have the right to contest it.

• Notice of Assessment – You will receive a written notice in March. Review it carefully for errors in market value, property description, or exemption eligibility.
• File a Petition – Submit a written petition to the San Miguel County Board of Equalization within 60 days of the notice date. Include supporting documentation such as recent appraisals, comparable sales, or evidence of exemption eligibility.
• Informal Meeting – The Board may schedule an informal conference to discuss the case. This is often a quicker, less formal way to resolve disputes.
• Formal Hearing – If the issue remains unresolved, request a formal hearing. A hearing officer will review testimony, evidence, and may order a new appraisal.
• Further Appeal – Decisions of the Board can be appealed to the Colorado Board of Equalization within 30 days of the Board’s final order.

Throughout the process, keep copies of all correspondence and submit all required forms by the stipulated deadlines to preserve your right to a fair review.