Browse source-reviewed property tax appeal guides for Pennsylvania. County deadlines, filing methods, and available records can differ by county and tax year.
Each published guide identifies the public sources used for its deadline and filing summary. Confirm current requirements with the official filing authority before submitting anything.
Allegheny County: 2027 deadline guidance is 2027 annual appeals: July 1 through September 1, 2026. Guide: https://fairpath.app/property-tax-appeal/pennsylvania/allegheny-county
Montgomery County: 2027 deadline guidance is Annual appeal for 2027 is due August 1, 2026; interim appeals are due within 40 days of the notice. Guide: https://fairpath.app/property-tax-appeal/pennsylvania/montgomery-county
Source: Allegheny County Government, 2027 Annual Appeals, https://www.alleghenycounty.us/Services/Property-Assessments-and-Real-Estate/Appeals/Annual-Appeals. Reviewed 2026-07-16.
Source: Allegheny County Government, BPAAR Rules and Regulations, https://www.alleghenycounty.us/files/assets/county/v/2/government/property-assessment-and-real-estate/documents/bpaar/opa-board-rules-and-regulations.pdf. Reviewed 2026-07-16.
Source: Allegheny County Government, Property Assessment Appeals, https://www.alleghenycounty.us/Services/Property-Assessments-and-Real-Estate/Appeals. Reviewed 2026-07-16.
Source: Montgomery County Government, 2026 Appeal Rules and Regulations, https://www.montgomerycountypa.gov/DocumentCenter/View/1165/Appeal-Rules-and-Regulations-rev-2026?bidId=. Reviewed 2026-07-16.
Source: Montgomery County Government, 2026 Assessment Appeal Form, https://www.montgomerycountypa.gov/DocumentCenter/View/1158/Assessment-Appeal-Form-rev-2026?bidId=. Reviewed 2026-07-16.
Source: Montgomery County Government, Board of Assessment Appeals, https://www.montgomerycountypa.gov/index.aspx?nid=464. Reviewed 2026-07-16.
Source: Montgomery County Government, Board of Assessment Appeals FAQ, https://montgomerycountypa.gov/faq.aspx?TID=37. Reviewed 2026-07-16.