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IdahoS 12162025 regular legislative sessionSenate

PROPERTY TAXES – Amends House Bill 354 to revise provisions regarding the rules pertaining to market value.

Sponsored By: LOCAL GOVERNMENT AND TAXATION COMMITTEE

Signed by Governor

PROPERTY TAXES

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Bill Overview

Analyzed Economic Effects

1 provisions identified: 0 benefits, 0 costs, 1 mixed.

New property assessment rules for Idaho

Beginning January 1, 2026, Idaho sets standards for property values used to calculate property taxes. For each tested property category, the median assessed-to-market-value ratio must fall between 90% and 110%. Assessment levels across tested categories must differ by no more than five percentage points. Officials must support both tests with reasonable statistical certainty and require corrections when a category falls outside the range. County assessors must follow state rules, use recognized appraisal methods, and give major weight to actual and functional use. When using cost to estimate value, rules must favor replacement cost minus depreciation over historic cost minus depreciation where practical. For income-producing property, assessors may use one or more valuation methods but must exclude contract rent and legally exempt value. Owners of income-producing property can request the calculations, including any exempt value. State assessment rules and updates must be available free to the public in reasonable quantities. These standards do not guarantee a lower property tax bill.

Sponsors & Cosponsors

Sponsor

  • LOCAL GOVERNMENT AND TAXATION COMMITTEE

    Affiliation unavailable

Cosponsors

  • Jeff Ehlers

    Republican • House

  • Doug Ricks

    Republican • Senate

Roll Call Votes

All Roll Calls

Yes: 95 • No: 2

Senate vote • 4/3/2025

Senate Floor Vote

Yes: 33 • No: 0

House vote • 4/3/2025

House Floor Vote

Yes: 62 • No: 2

Actions Timeline

  1. Signed by Governor on 04/04/25 Session Law Chapter 313 Effective: 01/01/2026

    4/4/2025

  2. Reported delivered to Governor at 12:26 p.m. on 04/04/25

    4/4/2025

  3. Reported signed by the Speaker & ordered delivered to Governor

    4/4/2025

  4. Received from Senate; Signed by Speaker; Returned to Senate

    4/4/2025House

  5. Reported enrolled; signed by President; to House for signature of Speaker

    4/4/2025Senate

  6. Returned From House Passed; referred to enrolling

    4/3/2025Senate

  7. Rules Suspended: Ayes 59 Nays 0 Abs/Excd 11, read in full as required – PASSED - 62-2-6

    4/3/2025House

  8. Reported out of Committee with Do Pass Recommendation, Filed for Second Reading

    4/3/2025House

  9. Read First Time, Referred to Revenue & Taxation

    4/3/2025House

  10. Received from the Senate, Filed for First Reading

    4/3/2025House

  11. Rules Suspended (2/3 Vote - Read in full as required) – PASSED - 33-0-2

    4/3/2025Senate

  12. Read second time; filed for Third Reading

    4/3/2025Senate

  13. Reported out of Committee with Do Pass Recommendation; Filed for second reading

    4/2/2025Senate

  14. Reported Printed; referred to Local Government & Taxation

    4/2/2025Senate

  15. Introduced; read first time; referred to JR for Printing

    4/1/2025Senate

Bill Text

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