Property Tax Appeal Deadlines by State
Every state sets a strict window to appeal your assessment. Miss it and you wait a full year. Find your deadline below, then check whether you're over-assessed before it closes.
Alabama
30 days from assessment notice
Full Alabama guideAlaska
30 days from assessment notice (varies by borough)
Full Alaska guideArizona
April 25 (Assessor review) / September 15 (State Board)
Full Arizona guideArkansas
August 15 (County Board of Equalization)
Full Arkansas guideCalifornia
July 2 – November 30 (most counties); September 15 (San Francisco)
Full California guideColorado
June 1 (odd years — reassessment years)
Full Colorado guideConnecticut
February 20 (Board of Assessment Appeals)
Full Connecticut guideDelaware
Varies by county (typically March 1 – April 30)
Full Delaware guideDistrict of Columbia
April 1 (Real Property Tax Appeals Commission)
Full District of Columbia guideFlorida
25 days from TRIM notice (typically mid-September)
Full Florida guideGeorgia
45 days from assessment notice
Full Georgia guideHawaii
April 9 (Board of Review)
Full Hawaii guideIdaho
4th Monday in June (County Board of Equalization)
Full Idaho guideIllinois
30 days from assessment notice (varies by township)
Full Illinois guideIndiana
June 15 (or 45 days from assessment notice)
Full Indiana guideIowa
April 30 (Board of Review)
Full Iowa guideKansas
30 days from assessment notice (County Appraiser)
Full Kansas guideKentucky
September 25 (County Board of Assessment Appeals)
Full Kentucky guideLouisiana
30 days from assessment notice (Louisiana Tax Commission)
Full Louisiana guideMaine
185 days from commitment date (Board of Assessment Review)
Full Maine guideMaryland
45 days from assessment notice (Supervisor of Assessments)
Full Maryland guideMassachusetts
February 1 (Appellate Tax Board) or 3 months from tax bill
Full Massachusetts guideMichigan
July 31 (Michigan Tax Tribunal) or May 31 (Board of Review)
Full Michigan guideMinnesota
April 30 (County Board of Appeal and Equalization)
Full Minnesota guideMississippi
60 days from assessment notice (County Board of Supervisors)
Full Mississippi guideMissouri
July 10 (Board of Equalization) or second Monday in July
Full Missouri guideMontana
30 days from assessment notice (County Tax Appeal Board)
Full Montana guideNebraska
June 30 (County Board of Equalization)
Full Nebraska guideNevada
January 15 (County Board of Equalization)
Full Nevada guideNew Hampshire
March 1 (Board of Tax and Land Appeals)
Full New Hampshire guideNew Jersey
April 1 (County Board of Taxation)
Full New Jersey guideNew Mexico
30 days from assessment notice (County Valuation Protests Board)
Full New Mexico guideNew York
Grievance Day (3rd Tuesday in May for most municipalities)
Full New York guideNorth Carolina
30 days from assessment notice (County Board of Equalization and Review)
Full North Carolina guideNorth Dakota
30 days from assessment notice (County Board of Equalization)
Full North Dakota guideOhio
March 31 (County Board of Revision)
Full Ohio guideOklahoma
30 days from assessment notice (County Board of Equalization)
Full Oklahoma guideOregon
December 31 (Magistrate Division, Oregon Tax Court)
Full Oregon guidePennsylvania
August 1 (County Board of Assessment Appeals)
Full Pennsylvania guideRhode Island
90 days from tax bill (Tax Assessor) or December 31
Full Rhode Island guideSouth Carolina
90 days from assessment notice (County Assessor)
Full South Carolina guideSouth Dakota
30 days from assessment notice (County Board of Equalization)
Full South Dakota guideTennessee
45 days from assessment notice (County Board of Equalization)
Full Tennessee guideTexas
May 15 (or 30 days after notice, whichever is later)
Full Texas guideUtah
September 15 (County Board of Equalization)
Full Utah guideVermont
30 days from grievance hearing decision (State Appraiser)
Full Vermont guideVirginia
3 years from tax due date (Circuit Court) or 1 year (Board of Equalization)
Full Virginia guideWashington
July 1 (County Board of Equalization)
Full Washington guideWest Virginia
30 days from assessment notice (County Commission sitting as Board of Review)
Full West Virginia guideWisconsin
Last day of open book (Board of Review)
Full Wisconsin guideWyoming
30 days from assessment notice (County Board of Equalization)
Full Wyoming guideDeadlines are general guidance and can change. Always verify with your local assessor or taxing authority before filing.
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