Rate Breakdown

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

How Property Tax Works in Coconino County

In Coconino County, property taxes are calculated by multiplying the assessed value of a parcel by the combined millage rate of all taxing entities that serve the property (county, city, school districts, fire districts, etc.). The assessment process begins each July 1 when the County Assessor’s Office conducts a market‑value appraisal of every real‑estate parcel. This value is supposed to represent what the property would sell for on the open market as of that date.

Once the market value is determined, the assessor applies the statutory assessment ratio—typically 100 % for residential properties in Arizona—unless a specific exemption reduces the taxable base. The resulting figure is the *assessed value* on which the tax is levied.

The millage rate is expressed in “mills,” where one mill equals one‑tenth of one percent (0.001). For example, a combined rate of 50 mills means a property owner pays $50 in tax for every $1,000 of assessed value. In the 2024‑25 fiscal year, Coconino County’s base millage hovered around 20.75 mills, while the city of Flagstaff added roughly 30.25 mills, and school districts contributed another 14‑15 mills. The exact total varies by location, so the estimator tool pulls the most recent rates for each taxing jurisdiction that overlays the parcel.

Available Exemptions

Arizona law provides several exemptions that can lower the taxable portion of a home’s assessed value. Coconino County applies these exemptions automatically when qualified owners submit the required paperwork.

• Homestead Exemption: Reduces the assessed value by $2,500 for owner‑occupied primary residences.
• Senior Citizen Exemption: Residents age 65 or older may receive a $2,500 reduction; those 70+ and meeting income thresholds can qualify for an additional $2,500.
• Disability Exemption: A $2,500 reduction is available to qualified disabled persons, with a further $2,500 for those who are both senior and disabled.
• Veteran Exemptions:
  • Disabled veterans receive a $5,000 reduction for the first $100,000 of assessed value.
  • Surviving spouses of veterans killed in action qualify for a $7,500 reduction.

All exemptions must be applied for through the Coconino County Assessor’s Office, typically by the end of the tax year, and must be renewed annually.

Payment Schedule & Deadlines

Property taxes in Coconino County are due in two installments:

• First installment: Due October 1 (covers the portion of the tax bill that is 50 % of the total amount).
• Second installment: Due March 1 of the following year (the remaining 50 %).

Taxpayers may also opt to pay the entire bill early, which can qualify for a modest discount if the county offers a “prompt‑payment” incentive in a given year. Payments can be made online, by mail, or in person at the County Treasurer’s Office.

Late payments incur a 10 % penalty on the overdue amount plus interest at a rate set by the Arizona Department of Finance. Failure to pay both installments can result in a tax lien, eventual tax sale, and possible loss of the property.

Appealing Your Assessment

If you believe your property’s assessed value is inaccurate, you have the right to appeal to the Coconino County Board of Equalization.

• Step 1 – Notice of Appeal: File a written Notice of Appeal with the Board before the deadline (typically October 15 for the current tax year).
• Step 2 – Gather Evidence: Compile recent comparable sales, a professional appraisal, or documentation of property defects.
• Step 3 – Hearing: Attend a hearing before the Board, where you may present your evidence and answer questions.
• Step 4 – Decision: The Board will issue a written decision within 30 days. If the decision is unfavorable, you may appeal to the Arizona Tax Court.

Throughout the process, stay in contact with the County Assessor’s Office for guidance and avoid missing payment deadlines, as the appeal does not suspend tax liability.