Find your county property tax appeal guide

Madison County homeowners should plan around an April 30, 2027 written protest deadline, focus evidence on the October 1, 2026 valuation date, and file value concerns with the Madison County Board of Equalization.

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Mobile County homeowners generally have 30 days from the valuation notice date to file a Fair Market Value / Objection to Value with the Mobile County Board of Equalization.

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For 2026 Alameda County Decline in Value appeals, file with the Assessment Appeals Board from July 2 through September 15 and support value as of January 1, 2026.

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Orange County's regular 2026 assessment appeal filing window is July 2 through November 30, 2026 at 5:00 p.m. Pacific Time, with decline-in-value evidence focused on market value as of January 1, 2026.

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Riverside County's 2026 regular property tax assessment appeal window runs July 2 through November 30, 2026, with decline-in-value cases measured as of January 1, 2026.

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Sacramento County's 2026 regular Decline in Value appeal window is July 2 through November 30, 2026, with value measured as of January 1, 2026.

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San Bernardino County's 2026 regular decline-in-value appeal window runs July 2 through November 30, with January 1, 2026 as the valuation date and April 1, 2026 as the latest comparable-sale date.

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San Diego County homeowners can file a 2026 regular-roll assessment appeal from July 2 through November 30, 2026 when evidence supports a lower January 1, 2026 market value.

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Santa Clara County's 2026 regular property tax appeal window is July 2 through September 15, 2026, with Prop. 8 evidence focused on January 1, 2026 market value.

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Adams County, Colorado 2027 real-property appeals start with the Assessor from May 1 through June 8, with later BOE review by September 15 if needed.

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Arapahoe County homeowners should focus first on the June 8, 2027 protest deadline and support any value challenge with similar arm’s-length sales from July 1, 2024 through June 30, 2026.

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Boulder County homeowners should plan for the expected June 8, 2027 real property protest deadline and support any value appeal with qualified comparable sales from July 1, 2024 through June 30, 2026.

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Denver County homeowners should plan for a May 1 to June 8, 2027 Assessor protest window and focus evidence on value, classification, or property-record errors.

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Douglas County homeowners generally have May 1 through June 8, 2027 to appeal real-property value or classification to the Assessor for the 2027 reappraisal year.

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El Paso County homeowners should treat May 1 through June 8, 2027 as the regular real-property protest window and focus on market value, correct property facts, and clear evidence.

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Jefferson County, Colorado homeowners should plan for a May 1 to June 8, 2027 assessor protest window and focus evidence on the official issue: Incorrectly valued, Incorrectly classified, or Property record or data error

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Larimer County homeowners should prepare for a projected June 8, 2027 protest deadline, focus Actual value evidence on comparable sales through June 30, 2026, and appeal to the County Board of Equalization if needed.

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Weld County real property owners should prepare for the expected May 1 to June 8, 2027 assessor protest window and focus evidence on valuation, classification, condition, or completion facts.

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For 2027 Capitol Planning Region properties, file the local Board of Assessment Appeals application by February 20, 2027 for the October 1, 2026 Grand List unless the municipal extension deadline applies.

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Greater Bridgeport Planning Region homeowners use their municipal Connecticut Board of Assessment Appeals, with the regular 2027 filing window modeled as February 1 through February 20, 2027.

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Naugatuck Valley Planning Region homeowners file 2027 assessment appeals with the local Board of Assessment Appeals, usually by February 20, 2027 unless a local extension applies.

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South Central Connecticut Planning Region homeowners file 2027 Connecticut assessment appeals with their municipality's Board of Assessment Appeals, usually by February 20, 2027.

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Western Connecticut Planning Region homeowners generally file 2027 assessment appeals with their municipal Board of Assessment Appeals by February 20, 2027, using evidence tied to October 1, 2026 value.

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Broward County's 2026 value-petition deadline is September 18, 2026, with appeals heard by the Broward County Value Adjustment Board.

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Miami-Dade County owners can challenge 2026 value, exemption, classification, portability, deferral, or penalty decisions through the Value Adjustment Board by the September 18, 2026 value-petition deadline.

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Palm Beach County homeowners appealing a 2026 TRIM value generally file a VAB petition by September 14, 2026 and support the case with January 1, 2026 market-value evidence.

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Honolulu County’s 2027 Board of Review appeals are due January 15, 2027, with value appeals built around fee simple market evidence showing the assessment is more than 10% above market value.

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Polk County homeowners protesting a 2027 assessment should focus on the April 2 to April 30, 2027 Board of Review window and evidence tied to January 1, 2027.

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Cook County's 2026 property tax appeal deadlines are set by township, not one countywide date, with Assessor and Board of Review appeal opportunities available on separate rolling schedules.

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Marion County, Indiana 2027 property tax appeals generally use Form 130 by June 15, 2027, with evidence tied to market value-in-use as of January 1, 2027.

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Sedgwick County homeowners should plan around the expected March 31, 2027 informal appeal deadline and focus evidence on January 1 fair market value, classification, equalization, or record and condition errors.

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For Fayette County’s 2027 real property assessments, complete the PVA conference by May 17, 2027, and file with the Local Board of Tax Appeals by May 18, 2027 if the conference does not resolve the value issue.

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Jefferson County homeowners generally must start with a PVA Online Conference, then file with the Local Board of Assessment Appeals if they remain dissatisfied.

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Bristol County, MA homeowners file FY2027 property tax abatement applications with their city or town Board of Assessors, with the regular deadline modeled as February 1, 2027.

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Essex County homeowners file FY2027 Massachusetts abatement applications with their local Board of Assessors, usually by the first actual tax payment due date, commonly February 1, 2027.

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For FY2027, Hampden County homeowners file Massachusetts abatement applications with their local city or town board of assessors, with February 1, 2027 as the planning deadline unless the actual bill says otherwise.

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Middlesex County FY2027 real estate abatements are filed with the local city or town Board of Assessors, with a regular-cycle deadline of February 1, 2027 and evidence focused on January 1, 2026 fair cash value.

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Norfolk County FY2027 real estate abatements are filed with each city or town Board of Assessors, with the regular planning deadline of February 1, 2027.

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Plymouth County FY2027 property-tax abatements are filed with the local city or town Board of Assessors, with the regular deadline modeled as February 1, 2027.

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Suffolk County homeowners file FY2027 property-tax abatements with their local municipal Board of Assessors, with a practical January 1 to February 1, 2027 filing window unless the actual bill gives a different due date.

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For 2027 Worcester County, Massachusetts property tax abatements are filed with the local Board of Assessors, generally from January 1 through February 1, 2027, using evidence tied to the January 1, 2026 valuation date.

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Anne Arundel County assessment appeals are filed with Maryland SDAT, with a January 4, 2027 Petition for Review deadline and separate 45-day reassessment-notice deadline.

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Baltimore City Area 3 homeowners should watch the 45-day SDAT reassessment deadline, prepare market-value and worksheet evidence, and use the exact deadline printed on their notice.

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Baltimore County Area 3 homeowners should use the SDAT notice deadline, focus on January 1, 2027 market value, and support any appeal with comparable sales or clear record corrections.

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Frederick County Area 3 homeowners should treat 45 days from the actual SDAT Notice of Assessment date as the controlling 2027 reassessment appeal deadline.

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Howard County Area 3 homeowners should focus on the SDAT notice deadline, the January 1, 2027 market value target date, and evidence from similar recent sales or documented property-record errors.

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Montgomery County 2027 property assessment appeals start with SDAT, use a January 1, 2027 valuation date, and have a regular Petition for Review deadline of January 4, 2027.

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Prince George's County 2027 assessment appeals start with Maryland SDAT's Supervisor's level, with a 45-day notice-date deadline and a county-rate sensitivity of 1.00%.

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Washtenaw County homeowners generally start 2027 assessment appeals at their local city or township March Board of Review, with the regular cycle modeled from March 8 through April 5, 2027.

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Guilford County 2027 real-property appeals go to the Board of Equalization and Review, with the verified regular filing deadline treated as May 17, 2027.

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Mecklenburg County’s 2027 real-property appeals will open after Notices of Value are mailed, with BER deadlines and notice-specific dates controlling once published.

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Bergen County’s regular 2027 property assessment appeal is generally due April 1, 2027, with value tested as of October 1, 2026 and evidence focused on comparable sales.

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Burlington County’s 2027 regular property tax appeal is expected to be due January 15, 2027, with evidence focused on market value as of October 1, 2026.

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Camden County homeowners appealing a 2027 assessment should plan around the April 1, 2027 deadline and use strong comparable sales tied to the October 1, 2026 valuation date.

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Essex County 2027 property tax appeals are generally due April 1, 2027 by 4:00 p.m., with valuation evidence tied to October 1, 2026 and supported by three to five comparable sales.

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Gloucester County 2027 regular assessment appeals are due by 4:00 p.m. Eastern on January 15, 2027, and focus on the assessment as of October 1, 2026.

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Hudson County homeowners generally must file the 2027 assessment appeal by April 1, 2027, unless a revaluation, reassessment, or notice-specific 45-day deadline applies.

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Mercer County homeowners appealing a 2027 assessment should focus first on the April 1, 2027 4:00 p.m. Eastern deadline, then prove value as of October 1, 2026 with credible comparable-sale evidence.

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Middlesex County homeowners generally file a 2027 Form A-1 appeal with the Middlesex County Board of Taxation by April 1, 2027, using recent usable comparable sales for value disputes.

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Monmouth County regular 2027 assessment appeals are due January 15, 2027, with value evidence focused on true market value as of October 1, 2026.

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Morris County homeowners appealing a 2027 assessment should plan around the April 1, 2027 regular deadline, use October 1, 2026 market-value evidence, and file with the Morris County Board of Taxation.

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Ocean County homeowners generally file Form A-1 by April 1, 2027, using evidence of true market value as of October 1, 2026.

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Passaic County homeowners generally must file a 2027 regular assessment appeal between February 1 and April 1, 2027, using evidence tied to value as of October 1, 2026.

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Somerset County homeowners appealing a 2027 assessment generally file with the Somerset County Board of Taxation by April 1, 2027, using credible evidence of value as of October 1, 2026.

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Union County, NJ homeowners usually must file a 2027 regular assessment appeal by April 1, 2027, unless a revaluation, reassessment, or 45-day notice rule gives a different deadline.

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Bernalillo County homeowners generally have 30 days from the Notice of Value mailing date to protest 2027 value, classification, allocation, exemption denial, or limitation denial issues.

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Washoe County homeowners generally must file a 2027 real-property valuation appeal by January 15, 2027 with the Washoe County Board of Equalization, using evidence tied to official Nevada valuation or equalization rules.

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Albany County homeowners usually file Form RP-524 with their local city or town assessor or Board of Assessment Review by Grievance Day, with 2027 modeled as May 25, 2027.

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Dutchess County homeowners generally file New York Form RP-524 with the local assessor or Board of Assessment Review by Grievance Day, with May 25, 2027 as the default 2027 deadline.

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Erie County town property owners generally have until May 25, 2027 to file Form RP-524 for the 2027 assessment roll, using July 1, 2026 market value evidence.

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Monroe County town homeowners generally must file Form RP-524 by Grievance Day, May 25, 2027, and use official New York reasons such as Excessive Assessment, Unequal Assessment, Unlawful Assessment, or Misclassification.

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Onondaga County homeowners generally use New York Form RP-524 by Grievance Day to challenge a 2027 assessment before the local Board of Assessment Review.

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Orange County homeowners generally use Form RP-524 by Grievance Day, May 25, 2027, to ask the local Board of Assessment Review to correct a 2027 assessment.

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Rockland County homeowners generally file New York Form RP-524 by the May 25, 2027 Grievance Day deadline to challenge the 2027 town assessment.

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For 2027 Suffolk County town assessments, file RP-524 with the town assessor or town Board of Assessment Review by May 18, 2027.

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Cleveland County homeowners should track the 30 calendar day Form 974 deadline, use January 1, 2027 actual fair cash value evidence, and use Form 976 for County Board of Equalization appeals.

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For 2027 Oklahoma County property tax appeals, most homeowners start with Form 974 by the 30-day notice deadline or April 5, 2027 if value was unchanged; the estimated county-wide effective tax rate is 0.98%.

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Tulsa County homeowners usually start with Form 974, a 30-day notice deadline when a valuation notice is mailed, and a 2027 fallback filing deadline of April 5, 2027 when values did not change.

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Allegheny County 2027 annual property assessment appeals may be filed July 1, 2026 through September 1, 2026, with Value Appeals heard by the Board of Property Assessment Appeals and Review.

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Philadelphia County 2027 market-value assessment appeals go to the Philadelphia Board of Revision of Taxes and are due October 5, 2026, with the published Real Estate Tax rate at 1.3998% of assessed value.

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Hamilton County, Tennessee homeowners should plan for a June 2027 county-board filing window, use January 1, 2027 evidence, and match their filing to the county’s official appeal reasons.

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Bell County homeowners should treat May 17, 2027 as the regular 2027 protest deadline, while watching for later notice-specific deadlines and preparing evidence tied to January 1, 2027 value.

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Bexar County’s 2027 regular property tax protest deadline is generally May 17, 2027, with protests heard by the Bexar Appraisal Review Board if informal review does not resolve the case.

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Brazoria County homeowners generally must protest 2027 appraisal issues by May 17, 2027, unless a later Notice of Appraised Value deadline applies.

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Cameron County homeowners generally must protest 2027 values by May 17, 2027, or 30 days after a later notice, with evidence tied to January 1, 2027 value.

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Collin County’s regular 2027 property-tax protest deadline is May 17, 2027, with protests heard by the Collin Appraisal Review Board.

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Dallas County property owners can protest 2027 appraisal issues to the Dallas County Appraisal Review Board through Dallas CAD, with the regular countywide deadline projected for May 17, 2027.

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Denton County’s 2027 regular protest deadline is May 17, 2027, with value evidence focused on January 1, 2027 market value and comparable sales from 2024-01-01 through 2027-01-01.

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El Paso County homeowners usually need to file a 2027 EPCAD protest by May 17, 2027, unless their Notice of Appraised Value gives a later 30-day deadline.

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Fort Bend County’s 2027 property tax protests are expected to be due May 17, 2027, with Fort Bend Appraisal Review Board hearings and a working 1.64% median effective tax-rate estimate.

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Galveston County homeowners generally must file 2027 appraisal protests by May 17, 2027, or 30 days after a later notice, with the Galveston CAD Appraisal Review Board.

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Harris County’s 2027 regular property tax protest deadline is treated as Monday, May 17, 2027, with later deadlines possible for later-mailed notices.

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Hays County homeowners should file a 2027 Notice of Protest by May 17, 2027, unless a later 30-day mailed-notice deadline applies.

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Hidalgo County 2027 appraisal protests are due May 17, 2027, or 30 days after notice delivery, and are heard by the Hidalgo County Appraisal Review Board under Texas protest rules.

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Lubbock County homeowners generally have until May 17, 2027 to file a 2027 property tax protest, unless their appraisal notice gives a later 30-day deadline.

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Montgomery County, Texas homeowners generally have until May 17, 2027, or 30 days after a later notice, to file a 2027 property-tax protest with evidence tied to January 1, 2027.

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Nueces County homeowners generally have until May 17, 2027 to file a 2027 Notice of Protest, with the notice’s later printed deadline controlling when it applies.

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For 2027 Tarrant County protests, most homeowners should treat May 17, 2027 as the regular deadline unless their TAD notice gives a later date.

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For Travis County’s 2027 regular appraisal-protest cycle, the modeled primary deadline is Monday, May 17, 2027, with protests heard by the Travis Appraisal Review Board if not resolved informally.

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Williamson County homeowners should plan for a May 17, 2027 regular protest deadline, use the official WCAD protest reasons, and support any value argument with January 1, 2027 evidence.

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Chesterfield County homeowners appealing a 2027 real estate assessment should start with Real Estate Assessments by March 15, 2027, before any Board of Equalization filing by April 15, 2027.

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Fairfax County’s 2027 property tax appeal planning dates are April 1 for DTA administrative appeals and June 1 for BOE appeals, with evidence tied to the January 1, 2027 fair market value date.

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Henrico County homeowners generally need to file the 2027 regular assessment appeal by April 1, 2027 and support the request with fair market value, property-record, or uniformity evidence.

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Loudoun County homeowners should plan around the projected June 1, 2027 Board of Equalization deadline and use Market Value, Equity, or Incorrect Property Data evidence that matches the issue.

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King County 2026 property valuation appeals go to the King County Board of Appeals and Equalization and focus on true and fair market value as of January 1, 2026.

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Pierce County assessment appeals go to the Pierce County Board of Equalization, with a July 1, 2026 base deadline or a later 60-day notice deadline for the 2026 assessment cycle.

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Spokane County homeowners generally appeal 2027-cycle assessments to the Spokane County Board of Equalization by July 1, 2026, or within 30 days after the Change of Value Notice was mailed, whichever is later.

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For taxes payable in 2027, Thurston County homeowners generally appeal to the Board of Equalization by July 1, 2026, or 60 days after a later mailed notice, using true and fair market value evidence.

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Dane County property tax assessment appeals are handled by each municipal Board of Review, with 2027 evidence focused on market value or other official assessment issues as of January 1, 2027.

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Milwaukee County 2027 assessment appeals are filed with the local municipality, usually after Open Book and before the municipal Board of Review, with evidence tied to January 1, 2027 market value.

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Waukesha County assessment appeals are handled by each local Board of Review, with 2027 filing deadlines tied to the local board schedule and notice rules.

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