Rate Breakdown

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

How Property Tax Works in Power County

In Power County, Idaho, property taxes are generated from a combination of assessments performed by the County Assessor’s Office and the millage rates set by local governmental units. The county’s assessment process begins each April when the Assessor’s Office evaluates every parcel to determine its “market value.” This evaluation uses recent sales data, comparable property comps, and a standard adjustment formula that accounts for location, structure, and land quality. Once the assessed value is established, the county applies the millage rates that have been approved by the City of Power, the Power County Council, the State of Idaho, and special taxing districts such as the Water and Fire Services District.

The total millages are expressed as “mills”—a mill equals one‑thousandth of a dollar, or $1 in tax for every $1,000 of assessed value. For example, if the combined millage rate is 15 mills, a $200,000 property will owe $3,000 in yearly taxes (200,000 ÷ 1,000 × 15 = 3,000). The calculated tax is then adjusted for any applicable exemptions or credits before the final bill is sent to the property owner.

Available Exemptions

• Homestead Exemption: Qualifies homeowners who occupy their residence as their principal place of abode. Current limits allow a $10,000 reduction in assessed value for properties valued under $90,000, and $12,500 for higher‑valued homes.
• Senior Citizen Exemption: Available to residents aged 65 or older who meet income thresholds. The exemption can reduce the assessed value by up to $2,000 or $6,000, depending on filing status and income level.
• Disabled Person Exemption: Individuals with a disability, or a spouse who is, may receive a $5,000 reduction in assessed value. Proof of disability is required via a valid physician’s statement.
• Veteran Exemption: Active duty, National Guard, or Army Reserve members, or their surviving spouses, qualify for a $10,000 exemption. Additionally, Vets of the Army, Navy, Air Force, or Marines may receive an extra $5,000 reduction if they have at least 20 years of service or received a Purple Heart.

Payment Schedule & Deadlines

Power County issues two payment installments each year: the first is due by the 15th day of June, and the second by the 15th day of December. Property owners can choose the standard front‑pay schedule or an installment plan that divides the total tax evenly between June and December. If you pay on or before the scheduled dates, no interest or penalties accrue. Late payments incur a 2% monthly interest charge, compounded quarterly, and a flat late fee of $30 for each delinquent portion.

To avoid delinquency, it is advisable to set up a payment reminder or use the county’s online portal to schedule automatic payments. If you anticipate cash flow issues, contact the County Tax Collector’s Office before the first deadline to discuss possible deferrals or payment arrangements; early communication can prevent escalation to collection proceedings.

Appealing Your Assessment

• First Step – File a Request: Complete a written appeal form available on the Power County Assessor’s website or obtain it from the county clerk’s office. Submit the form to the Assessor’s Office within 30 days of receiving your assessment notice.
• Provide Supporting Evidence: Include recent property appraisals, comparable sales data, construction documents, or proof of repairs that may have affected value. Clearly state the basis for your disagreement.
• Attend the Appeals Hearing: Once your appeal is accepted, the Assessor’s Office will schedule a public hearing. Present your evidence, answer questions, and be prepared to articulate why the current valuation is inaccurate.
• Receive the Decision: The Assessor will issue a written decision within 30 days of the hearing. If you are dissatisfied with the outcome, you may appeal to the Power County Tax Board, where a formal review will take place.