Power County Property Tax Appeal, Idaho

Travis Bunn·Updated July 22, 2026

Power County is located in southeastern Idaho with American Falls as the county seat and largest city. The county has a population of approximately 8,246 (2025 estimate) and was established in 1913, named for the hydroelectric power plant at American Falls Dam. Property tax appeals matter here because homeowners can challenge assessments that may not accurately reflect market values, potentially saving hundreds of dollars annually. Power County's median home value is approximately $197,722, significantly below Idaho's state median. The county's effective property tax rate is 0.73%, which is higher than the Idaho state median of 0.63% but substantially lower than the national median of 1.02%. The median annual property tax bill in Power County is $1,739, compared to Idaho's median of $2,104 and the national median of $2,400.

Notable cities: American Falls, Rockland

Median Home

$197,722

Tax Rate

0.73%

Annual Tax

$1,739

Population

8,246

On the typical Power County home, valued near $197,722 at the county’s effective tax rate of 0.73%, 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: Fourth Monday in June 2026 (June 22, 2026)

Appeals must be filed by the fourth Monday in June each year. For 2026, this deadline is June 22, 2026. Assessment notices are mailed the first Monday in June, giving property owners approximately three weeks to review and file an appeal. The deadline is strictly enforced and missing it means waiting another full year.

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How Power County Assesses Property

100%of market value

Assessed by: Power County Assessor's Office

Assessment cycle: annual

Notices typically mailed: Early June (first Monday in June)

Idaho law requires Power County to assess all property at 100% of market value, meaning your assessed value equals the property's fair market value. The assessment is performed annually by the Power County Assessor based on sales data, construction costs, and property inspections. For example: If your home's market value is $197,722 (the county median), at Idaho's 100% assessment ratio your assessed value would be $197,722. After applying the homestead exemption of 50% or $125,000 (whichever is less), your taxable value would be approximately $98,861, resulting in approximately $722 in annual taxes at the county's effective rate of 0.73%.

The Appeal Process

Appeals are heard by the Board of Equalization. The Board of Equalization hearing is conducted by the County Commissioners and focuses strictly on ensuring the market value placed on your property is fair and accurate. The Board reviews your evidence, hears testimony, and issues a written decision which may reduce, maintain, or in rare cases increase your assessed value. Hearings typically begin after the June filing deadline and decisions are mailed to appellants.

Step 1: Contact the Power County Assessor's Office at (208) 226-7616 as soon as you receive your assessment notice in early June to discuss your concerns and request an informal review of your property valuation.

Step 2: Gather evidence to support your appeal, including comparable sales of similar properties that sold for less than your assessed value within the past 6-12 months, photos documenting property condition issues or defects, and documentation of any errors in the assessment (incorrect square footage, lot size, features).

Step 3: Obtain and complete the Property Value Appeal Application form, available online at the Power County Assessor website or in person at the Power County Clerk's Office at 543 Bannock Avenue in American Falls. Include your parcel number, current assessed value, your opinion of correct value, and grounds for appeal.

Step 4: File your completed appeal form with all supporting documentation by the fourth Monday in June (June 22, 2026 for tax year 2026). Forms can be submitted online, in person at the Clerk's Office, or by mail (postmark date counts as filing date).

Step 5: Attend your Board of Equalization hearing, which will be scheduled after the filing deadline. Present your evidence clearly and concisely, focusing on factual data such as comparable sales and assessment errors. The Board will review your case and issue a written decision.

Step 6: If you disagree with the Board of Equalization's decision, you may appeal to the Idaho Board of Tax Appeals within 30 days of the BOE decision, or alternatively file with district court.

Step 7: As a final option, if dissatisfied with the Idaho Board of Tax Appeals decision, you may appeal to the Idaho District Court within 28 days of the BTA decision under Idaho Rules of Civil Procedure Rule 84.

Required form: Property Value Appeal Application (Board of Equalization form)

Filing Methods

online:Property Value Appeal Applications are available online at https://www.powercounty.gov/196/Assessor

in-person:Pick up forms at Power County Clerk's Office, 543 Bannock Avenue, American Falls, ID 83211

mail:Mail completed appeal form to Power County Clerk's Office, 543 Bannock Avenue, American Falls, ID 83211 (must be postmarked by deadline)

Evidence to Bring

Comparable sales of similar properties sold within the last 6-12 months showing lower valuesPhotos documenting property condition issues, damage, or needed repairsIndependent appraisal showing a lower market valueDocumentation of assessment errors (incorrect square footage, lot size, number of rooms, etc.)Repair estimates from licensed contractors for significant defectsMultiple Listing Service (MLS) data showing comparable properties

Power County Assessor Contact

Power County Assessor's Office

Phone: (208) 226-7616

Address: 543 Bannock Avenue, American Falls, ID 83211

Website: https://www.powercounty.gov/196/Assessor

Online Portal: https://www.powercounty.gov/196/Assessor

Hours: Monday through Friday, 9:00 AM to 5:00 PM

Tax Exemptions in Power County

Homeowner's Exemption (Homestead)

50% of home's assessed value or $125,000, whichever is less

Idaho's primary property tax exemption for owner-occupied primary residences, reducing the taxable value of your home and up to one acre of land.

Eligibility: Must own and occupy the home as your primary residence on April 1st. No income or age restrictions apply. Property must be coded as owner-occupied. Exemption is automatic in most cases but contact the assessor to verify it's applied.Deadline: April 15 (one-time application, remains in effect as long as you own and occupy the property)

Property Tax Reduction (Circuit Breaker)

$250 to $1,500 annual reduction in property taxes

Income-based property tax reduction program for qualifying low-income seniors, disabled individuals, and certain veterans, reducing actual tax owed by up to $1,500.

Eligibility: Must be age 65+, blind, widowed, disabled (as recognized by Social Security, VA, or other federal agency), former POW/hostage, or motherless/fatherless child under 18. Must own and occupy home as primary residence. Income limits apply: 2025 income after medical deductions must be less than $39,130 (reduced tier for higher benefit) or $61,674 (regular tier). Property value limits also apply.Deadline: January 1 through April 15 annually

Disabled Veterans Property Tax Reduction

Up to $1,500 annual reduction in property taxes

Special property tax reduction for veterans with 100% service-connected disability rating from the VA, providing significant tax relief without income limits.

Eligibility: Must be recognized as 100% service-connected disabled veteran OR receive 100% VA compensation due to individual unemployability as of January 1. Must own and occupy home in Idaho as primary residence. Property must have current homeowner's exemption. No income limit. If disability is permanent and total, this is a one-time application; otherwise must reapply annually.Deadline: January 1 through April 15 annually

Hardship Exemption

Varies based on circumstances

Property taxes may be cancelled in cases of undue hardship as determined by the County Commissioners on a case-by-case basis.

Eligibility: Must demonstrate undue hardship and inability to pay property taxes. Applications reviewed individually by County Commissioners.Deadline: Contact Power County Commissioners for application procedures

Casualty Loss Exemption

Varies based on extent of damage

Exemption available for property damaged by fire, flood, earthquake, or other casualty events causing loss to all or a portion of the property.

Eligibility: Property must have sustained casualty loss during the tax year. Board of Equalization determines eligibility on case-by-case basis.Deadline: Fourth Monday in June of the year in which the casualty loss occurred

Power County Appeal Packet — $49

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Frequently Asked Questions

What is the deadline to appeal my property taxes in Power County for 2026?

The deadline to file a property tax appeal in Power County is the fourth Monday in June, which falls on June 22, 2026. Assessment notices are mailed the first Monday in June, giving you approximately three weeks to gather evidence and file your appeal. This deadline is strictly enforced under Idaho law, and missing it means you must wait until the following year to appeal. You can obtain appeal forms online at the Power County Assessor website or pick them up in person at the County Clerk's Office at 543 Bannock Avenue in American Falls.

How do I file a property tax appeal in Power County online?

Property Value Appeal Applications are available online at the Power County Assessor's website at https://www.powercounty.gov/196/Assessor. You can download the form, complete it with your property information and evidence, and submit it according to the instructions provided. Alternatively, you can pick up forms in person at the Power County Clerk's Office at 543 Bannock Avenue in American Falls, or call the Assessor's Office at (208) 226-7616 to request a form by mail. All appeals must be received or postmarked by the fourth Monday in June (June 22, 2026).

What is the homestead exemption worth in Power County?

In Power County, Idaho's homestead exemption (officially called the Homeowner's Exemption) reduces your taxable assessed value by 50% of your home's value or $125,000, whichever is less. For example, on Power County's median home value of $197,722, the exemption would reduce your assessed value by $98,861 (50%), potentially saving approximately $722 annually at the county's 0.73% effective tax rate. This exemption applies to your primary residence and up to one acre of land. You must own and occupy the home as of April 1st to qualify, and there are no income or age restrictions. The exemption is generally applied automatically, but you should verify with the Power County Assessor that it's on your assessment notice.

What happens at a Board of Equalization hearing in Power County?

At a Power County Board of Equalization hearing, the County Commissioners review your appeal and evaluate whether the market value placed on your property is fair and accurate. You will present your evidence, which may include comparable sales data, photos of property condition issues, independent appraisals, or documentation of assessment errors. The hearing is relatively informal, and you do not need an attorney, though you may hire one if desired. Focus on presenting factual data clearly and concisely. After reviewing all evidence and hearing testimony, the Board will issue a written decision that may reduce, maintain, or in rare cases increase your assessed value. You will receive the decision by mail, typically within several weeks of the hearing.

How much can I save by appealing my property taxes in Power County?

The amount you can save depends on how much your assessment is reduced and Power County's 0.73% effective tax rate. If your home is overassessed by 10% on the county's median home value of $197,722 (approximately $19,772), a successful appeal could reduce your assessment by that amount, saving you approximately $144 annually. For a property overassessed by 20% (about $39,544), you could save approximately $289 per year. These savings continue every year that the reduced value remains in effect. Keep in mind that under Idaho's fixed value law, successful appeals to the Idaho Board of Tax Appeals can lock in reduced values for up to two years. The key is gathering strong evidence of comparable sales showing your property is valued higher than similar homes that recently sold.

What evidence do I need for a Power County property tax appeal?

The strongest evidence for a Power County property tax appeal includes comparable sales of 3-5 similar properties in your area that sold within the past 6-12 months for less than your assessed value. These comparable properties should match your home's size, age, condition, and features as closely as possible. You should also bring photos documenting any property condition issues, needed repairs, or damage that affects value. If your assessment contains factual errors (incorrect square footage, lot size, number of bedrooms or bathrooms, etc.), bring documentation proving the correct information. An independent appraisal from a licensed appraiser, contractor repair estimates, and MLS (Multiple Listing Service) data can also strengthen your case. Organize your evidence clearly and bring copies for Board members at the hearing.

Can I appeal to a higher level if the Power County Board of Equalization denies my appeal?

Yes, if you disagree with the Power County Board of Equalization's decision, you have two appeal options. You may file an appeal with the Idaho Board of Tax Appeals (BTA) within 30 days of the BOE decision by filing a Notice of Appeal with the Power County Clerk/Auditor. The BTA is a neutral state-level body that conducts hearings (typically in the county where the property is located) and there are no filing fees. Alternatively, you may appeal directly to the district court for Power County, though this option is more formal and may involve legal costs. If still dissatisfied after the BTA decision, you can appeal to district court within 28 days. Many property owners choose the BTA route because it's less formal, has no fees, and BTA decisions changing property values are effective for both the current and subsequent tax years.

When will I receive my property tax assessment notice in Power County?

Power County mails property tax assessment notices on the first Monday in June each year, typically in early June. The notice will show your property's current market value, assessed value, any applicable exemptions (such as the homeowner's exemption), and estimates of your property tax bill based on previous years' rates. The notice also includes information from your taxing district and shows your property's values from previous years for comparison. It's important to note that the assessment notice is not a bill, your actual property tax bill is mailed later in November after taxing districts set their budgets and levy rates in September. However, you only have until the fourth Monday in June (about three weeks after receiving the notice) to file an appeal, so review it immediately upon receipt and contact the Assessor's Office at (208) 226-7616 with any questions.

Official Resources

Power County Assessor's Office Official Website →

Official Power County Assessor website with property appeal forms, assessment information, exemption applications, and important tax dates and deadlines.

Idaho Board of Tax Appeals →

State-level appeals board for challenging County Board of Equalization decisions, with appeal forms, filing instructions, and information on the BTA hearing process.

Idaho State Tax Commission Property Tax Information →

Comprehensive property tax information from Idaho State Tax Commission including exemption programs, property tax reduction benefits, and homeowner resources.

Power County Property Tax Exemptions →

Detailed information on homeowner's exemption, property tax reduction programs, disabled veterans benefits, and other exemptions available in Power County.

For state-wide appeal information including Idaho's assessment ratio and deadlines, see our Idaho 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 →

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← All Idaho property tax appeal info

Sources: https://www.powercounty.gov/196/Assessor | https://www.ownwell.com/trends/idaho/power-county | https://bta.idaho.gov/ | https://tax.idaho.gov/taxes/property/ | https://www.powercounty.gov/245/Exemptions | https://www.countyoffice.org/id-power-county-property-records/ | http://www.tax-rates.org/idaho/power_county_property_tax | https://propertytaxrates.org/exemptions/idaho/

Last verified: 2026-07-22