County officials brief council on property taxes: values drive levies, exemptions shift burden to homeowners

Lewiston City Council · October 7, 2025

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Summary

Nez Perce County Assessor Dan Anderson and county official Patty Weeks told Lewiston councilors that sales drive assessed values, the state audits assessments for accuracy, and legislative exemptions (personal property, construction equipment, ag) have reduced the taxable base, shifting more of the tax burden onto residential owners.

Nez Perce County officials told Lewiston City Council members on Tuesday that market sales set property values, the state audits assessments annually, and a string of statutory exemptions has reduced the taxable base and shifted more of the tax burden to homeowners.

County Assessor Dan Anderson explained the assessor’s role in setting values — “I am a thermometer. I'm just telling you how hot it is” — and said his office appraises annually and inspects properties on a five‑year cycle. Anderson said Idaho remains one of several nondisclosure states, which limits the assessor’s access to sales‑price data and “makes the job of assessors throughout the state harder.” He traced recent tax‑base erosion to legislative exemptions (personal property exemptions that rose from $100,000 to $250,000 and removal of construction‑equipment from the tax base) that removed taxable value and left the same budgets to be covered by fewer taxpayers.

County clerk/treasurer Patty Weeks described how levies are calculated: the property‑tax portion of an agency’s budget is divided by assessed value to derive a levy rate. Weeks walked council members through an example showing how a $300,000 house, after a $125,000 homeowner exemption, produces a taxable value and how shifting levy rates and values affect a sample tax bill.

Both officials stressed limits to local authority: state law determines homeowner exemption amounts and the legislature and state tax commission must certify levies and relief calculations. Weeks said the state will finalize homeowner tax relief amounts after certifying all levies. Officials encouraged residents concerned about state exemptions or homeowner‑tax relief to contact their state legislators and legislative leadership.

Councilors pressed for detail on auditing and verification; Anderson said the state performs ratio studies and can order reappraisals and, if necessary, hire outside appraisal firms and withhold state shared revenues until corrections are made. Weeks said she provides levy budgets and preliminary values in June so the city can forecast impacts, and that Lewiston’s levy rate remains historically low despite taking the allowable 3% increase.

The county presenters provided context for upcoming city budget and levy decisions and offered to take follow‑up questions after the presentation.