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deadline_rule
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at any time during the taxable year on or before the 25th day following the mailing of notice by the property appraiser
rolling-from-notice
[ "deadline_type" ]
the clerk of the value adjustment board of the county
florida
notice by the property appraiser
https://www.leg.state.fl.us/statutes/index.cfm?App_mode=Display_Statute&URL=0100-0199/0194/Sections/0194.011.html
(b) The completed petition shall be filed with the clerk of the value adjustment board of the county, who shall acknowledge receipt thereof and promptly furnish a copy thereof to the property appraiser. (c) The petition shall state the approximate time anticipated by the taxpayer to present and argue his or her petitio...
Florida
194.011
https://referencesource.org/property-tax-appeal-deadlines-by-state/florida/
[ "deadline_rule", "filing_authority", "notice_type", "state", "statute_or_source" ]
within 45 days from the date the Assessment Notice was sent
rolling-from-notice
[ "deadline_type" ]
County Board of Tax Assessors
georgia
Assessment Notice
https://dor.georgia.gov/documents/pt-311a-appeal-assessment-form
To ensure the preservation of your appeal rights, it is essential to submit your property tax appeal to the County Board of Tax Assessors within 45 days from the date the Assessment Notice was sent.
Georgia
PT-311A Appeal of Assessment Form
https://referencesource.org/property-tax-appeal-deadlines-by-state/georgia/
[ "deadline_rule", "filing_authority", "notice_type", "state", "statute_or_source" ]
on or before the end of the county’s normal business hours on the fourth Monday of June
fixed-date
[ "deadline_type" ]
county board of equalization
idaho
null
https://legislature.idaho.gov/statutesrules/idstat/Title63/T63CH5/SECT63-501A/
An appeal of an assessment listed on the property roll must be filed on or before the end of the county’s normal business hours on the fourth Monday of June.
Idaho
63-501A
https://referencesource.org/property-tax-appeal-deadlines-by-state/idaho/
[ "deadline_rule", "filing_authority", "state", "statute_or_source" ]
on or after April 2, to and including April 30, of the year of the assessment
board-session
[ "deadline_type" ]
board of review
iowa
null
https://www.legis.iowa.gov/docs/code/441.37.pdf
Any property owner or aggrieved taxpayer who is dissatisfied with the owner’s or taxpayer’s assessment may file a protest against such assessment with the board of review on or after April 2, to and including April 30, of the year of the assessment.
Iowa
441.37
https://referencesource.org/property-tax-appeal-deadlines-by-state/iowa/
[ "deadline_rule", "filing_authority", "state", "statute_or_source" ]
within 30 days subsequent to the date of mailing of the valuation notice
rolling-from-notice
[ "deadline_type" ]
county appraiser
kansas
valuation notice
https://www.ksrevisor.gov/statutes/chapters/ch79/079_014_0048.html
Any taxpayer may complain or appeal to the county appraiser from the classification or appraisal of the taxpayer's property by giving notice to the county appraiser within 30 days subsequent to the date of mailing of the valuation notice
Kansas
79-1448
https://referencesource.org/property-tax-appeal-deadlines-by-state/kansas/
[ "deadline_rule", "filing_authority", "notice_type", "state", "statute_or_source" ]
within 185 days from commitment
rolling-from-notice
[ "deadline_type" ]
assessors
maine
commitment
https://legislature.maine.gov/statutes/36/title36sec841.html
The assessors, either upon written application filed within 185 days from commitment stating the grounds for an abatement or on their own initiative within one year from commitment, may make such reasonable abatement as they consider proper
Maine
841
https://referencesource.org/property-tax-appeal-deadlines-by-state/maine/
[ "deadline_rule", "filing_authority", "notice_type", "state", "statute_or_source" ]
must be filed within 30 days from the date on the notice of the department's determination
rolling-from-notice
[ "deadline_type" ]
county tax appeal board
montana
notice of the department's determination
https://mca.legmt.gov/bills/mca/title_0150/chapter_0070/part_0010/section_0020/0150-0070-0010-0020.html
The appeal to the county tax appeal board, pursuant to 15-15-102 , must be filed within 30 days from the date on the notice of the department's determination.
Montana
15-7-102
https://referencesource.org/property-tax-appeal-deadlines-by-state/montana/
[ "deadline_rule", "filing_authority", "notice_type", "state", "statute_or_source" ]
on or before June 30
fixed-date
[ "deadline_type" ]
county board of equalization
nebraska
null
https://nebraskalegislature.gov/laws/statutes.php?statute=77-1502
Protests regarding real property shall be signed and filed after the county assessor's completion of the real property assessment roll required by section 77-1315 and on or before June 30.
Nebraska
77-1502
https://referencesource.org/property-tax-appeal-deadlines-by-state/nebraska/
[ "deadline_rule", "filing_authority", "state", "statute_or_source" ]
not later than January 15 of the fiscal year in which the assessment was made
fixed-date
[ "deadline_type" ]
county board of equalization
nevada
null
https://www.leg.state.nv.us/nrs/nrs-361.html
The owner of any real or personal property placed on: (a) The secured tax roll who believes that the full cash value of his or her property is less than the taxable value computed for the property in the current assessment year may, not later than January 15 of the fiscal year in which the assessment was made, appeal t...
Nevada
361.357
https://referencesource.org/property-tax-appeal-deadlines-by-state/nevada/
[ "deadline_rule", "filing_authority", "state", "statute_or_source" ]
by March 1, following the date of notice of tax under RSA 76:1-a, and not afterwards
fixed-date
[ "deadline_type" ]
selectmen or assessors
new-hampshire
null
https://www.gencourt.state.nh.us/rsa/html/V/76/76-16.htm
Any person aggrieved by the assessment of a tax by the selectmen or assessors and who has complied with the requirements of RSA 74, may, by March 1, following the date of notice of tax under RSA 76:1-a, and not afterwards, apply in writing on the form set out in paragraph III to the selectmen or assessors for an abatem...
New Hampshire
76:16
https://referencesource.org/property-tax-appeal-deadlines-by-state/new-hampshire/
[ "deadline_rule", "filing_authority", "statute_or_source" ]
on or before the first day the board of assessment review meets to hear complaints
board-session
[ "deadline_type" ]
the assessor or the board of assessment review
new-york
null
https://www.tax.ny.gov/pdf/current_forms/orpts/rp524ins.pdf
When must the complaint be filed? You may file the complaint with the assessor on or before the first day the board of assessment review meets to hear complaints or with the board of assessment review on such day. If you file your complaint fewer than four business days before the board of assessment review meets, the ...
New York
RP-524-Ins (3/09)
https://referencesource.org/property-tax-appeal-deadlines-by-state/new-york/
[ "deadline_rule", "filing_authority", "state", "statute_or_source" ]
on or before November 15 of each year, but not less than ninety (90) days after the first tax payment is due
fixed-date
[ "deadline_type" ]
the local office of tax assessment
rhode-island
null
http://webserver.rilegislature.gov/Statutes/TITLE44/44-5/44-5-26.htm
Any person aggrieved on any ground whatsoever by any assessment of taxes against him or her in any city or town, or any tenant or group of tenants, of real estate paying rent therefrom, and under obligation to pay more than one-half (½) of the taxes thereon, may, on or before November 15 of each year, but not less than...
Rhode Island
44-5-26
https://referencesource.org/property-tax-appeal-deadlines-by-state/rhode-island/
[ "deadline_rule", "filing_authority", "state", "statute_or_source" ]
May 15 or 30 days after the appraisal district mails the property owner the notice of appraised value, whichever is later
rolling-from-notice
[ "deadline_type" ]
appraisal review board (ARB)
texas
notice of appraised value
https://comptroller.texas.gov/taxes/property-tax/protests/index.php
The usual protest filing deadline is May 15 or 30 days after the appraisal district mails the property owner the notice of appraised value, whichever is later.
Texas
Form 50-132, Property Owner’s Notice of Protest
https://referencesource.org/property-tax-appeal-deadlines-by-state/texas/
[ "deadline_rule", "filing_authority", "notice_type", "state", "statute_or_source" ]

Property tax assessment appeal deadlines by state

Canonical, always-current version: https://referencesource.org/property-tax-appeal-deadlines-by-state/ Machine-readable: https://referencesource.org/property-tax-appeal-deadlines-by-state/data.json — this mirror is a point-in-time copy.

  • Last verified: 2026-08-25
  • Stale after: 2027-08-25 (past this date, prefer the canonical copy — it re-verifies on a cadence this snapshot does not)
  • Records: 13

Missing a property-tax appeal window usually forfeits the appeal for that year, and the deadline is a different shape in each state, which is what a generic answer gets wrong. Three shapes appear here: a fixed calendar date that does not move (Nevada's January 15, Nebraska's June 30, New Hampshire's March 1); a count of days running from the day a specific notice was mailed, so the date differs per property (Georgia's 45 days from the assessment notice, Kansas's 30 days from the valuation notice, Maine's 185 days from commitment); and a filing window tied to when the review body sits (Iowa's April 2 to April 30, New York's fourth Tuesday of May in most towns). Texas combines two of them — May 15 or 30 days after the notice of appraised value, whichever is later. 13 states, each with the rule quoted verbatim from the statute or agency form it comes from, and a link to that page. Answers 'when do I have to file a property tax appeal in [state]', 'how many days after my assessment notice can I protest in [state]'.

Provenance — what every record carries

Every record carries source (the URL the value was read from) and source_quote (a verbatim quote from that page stating it). A value you cannot check against its page is indistinguishable from an invented one; these can all be checked. Each record is also individually addressable on the canonical site at its url.

Licence position

Facts extracted from state government pages; statutory deadlines are not copyrightable

Facts are not copyrightable; what this dataset takes from each source is a fact plus a short attributed quote linking back to the page that states it.

Sources

Fields

See any record in data/records.jsonl — field names are self-describing, and the canonical page for each record renders them with labels: https://referencesource.org/property-tax-appeal-deadlines-by-state/

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