How to appeal property taxes in Pennsylvania
County-specific guides with this year's deadlines, the exact forms, and step-by-step filing instructions — researched from official Pennsylvania sources. Or skip the reading: run your address through the free check and get your county's answer in about two minutes.
Allegheny County
Pittsburgh — Allegheny County’s 2026 annual appeal (tax year 2027) deadline (Sept. 1) has passed. Forms, filing steps, fees and evidence tips for the next cycle, with sources.
Bucks County
Bucks County Board of Assessment Appeals (BOA) guide: forms, filing address, evidence tips and hearing steps. The 2026 annual deadline (Aug. 3) has passed.
Chester County
Chester County's Assessment Office (610-344-6105) and Board of Assessment Appeals: the 2026 appeal window closed Aug. 3, 2026 (now past) — the rule for next year, CLR 30.6%, and how the two offices differ.
Delaware County
Delaware County PA's 2026-27 Common Level Ratio is 1.83. The 2026 appeal deadline has passed — see the expected Aug. 2027 window, forms, and filing address.
Lancaster County
2026 reassessment appeals were due Aug. 3; next annual appeal due Aug. 2, 2027. See 3.201 county mills and homestead tips.
Montgomery County
Montgomery County’s 2026 annual assessment appeal deadline (Aug. 1) has passed. Forms, filing steps, fees and evidence tips for the next cycle, with sources.
Philadelphia County
Philadelphia Board of Revision of Taxes (BRT) appeals: the Oct. 5, 2026 deadline for 2027 assessments, the exact forms, evidence rules, and which exemptions to check first. Sources cited, free to use.
York County
York County property tax appeal deadline is Aug. 1; learn Board of Assessment Appeals rules, 2026 county rate 7.55 mills & homestead.
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