Property Tax Grievances in Erie County, New York
Erie County owners contest the assessment created by the applicable city or town, not through a generic countywide grievance portal. The ordinary 2026 administrative windows have passed, but the FairPath owner-guided evidence packet remains available year-round. It can organize the local roll entry, owner-verified corrections, relevant sales and assessment comparisons, photographs, condition records, calculations, and official source links. FairPath does not file RP-524, select the owner's value opinion or requested assessment, communicate with an assessor or Board for the owner, or predict a value change, tax bill, savings, or filing outcome.
Assessment context: Start with the correct municipal roll and confirm the parcel's city or town, SWIS identity, property class, assessed value, and local uniform percentage of value. Erie County's town calendar identifies July 1 of the prior year as the valuation date, March 1 as taxable-status day, May 1 as the ordinary tentative-roll date, and July 1 as the final-roll date. Those dates do not safely describe Buffalo or every alternate local calendar. Buffalo, Lackawanna, inner-ring suburbs, lakefront communities, rural towns, villages, farms, older housing, and newer subdivisions are distinct market contexts. Raw assessments from municipalities with different assessment levels are not automatically comparable.
Filing process: New York generally uses Form RP-524 outside New York City and Nassau County. First identify the assessing city or town through Erie County's municipal contacts, then read that office's current tentative-roll and grievance notice. Buffalo's official 2026 form required receipt by December 31, 2025 and rejected email or fax, demonstrating why the ordinary town calendar cannot be substituted. Other local offices can publish alternate dates or delivery rules. The owner supplies the grounds, value estimate, requested assessment, signature, and supporting facts. After the Board determination and final roll, eligible owners may have Small Claims Assessment Review, while other matters may proceed through tax certiorari; each has a separate eligibility, fee, and deadline analysis. FairPath organizes evidence but does not select or file a judicial route.
Evidence to review: Begin with the current subject roll and property record. Flag measurable errors in living area, acreage, units, basement finish, garage, outbuildings, property class, exemptions, utilities, or improvements that no longer exist. Select arm's-length sales or assessment records from the same assessing unit and relevant submarket, then explain differences in neighborhood, school district, waterfront influence, site size, property type, effective age, renovation, and condition. Convert assessments using the correct local uniform percentage before comparing municipalities. Dated photographs, inspections, surveys, permits, contractor scopes, and owner records can document physical facts missing from the roll. Repair cost is not an automatic dollar-for-dollar value adjustment. Owner-provided facts remain attributed and require homeowner review before inclusion.
Current deadline guidance: 2026 local grievance windows are closed; verify the 2027 city or town calendar. Erie County's official calendar says most towns use a May 1 tentative roll and the fourth Tuesday in May for Grievance Day, but local exceptions exist. Buffalo uses its own earlier city calendar, and other municipalities may adopt alternate dates. The responsible city's or town's current notice controls; no countywide deadline is inferred.
Buffalo uses a separate and substantially earlier assessment calendar; do not apply the county's ordinary town dates to a Buffalo parcel.
Erie County municipalities can use alternate Grievance Days, so the responsible assessor's current notice is the receipt authority.
Assessment levels and market conditions vary among Buffalo, the suburban towns, lakefront communities, villages, and rural areas.
A mailing address or school district does not by itself identify the assessing city or town; confirm the roll and SWIS identity.
Keep three documents distinct: the property record describes parcel characteristics, the tentative roll opens administrative review, and the final roll reflects Board changes and drives later review timing. Preserve the version and retrieval date for every document used.
Official filing authority: Applicable Erie County city or town assessor and Board of Assessment Review. https://www3.erie.gov/ecrpts/general-information
Source: Erie County Real Property Tax Services, Assessment Calendar, https://www3.erie.gov/ecrpts/assessment-calendar. Reviewed 2026-08-09.
Source: Erie County Real Property Tax Services, General Information and Municipal Contacts, https://www3.erie.gov/ecrpts/general-information. Reviewed 2026-08-09.
Source: City of Buffalo, 2026 Complaint on Real Property Assessment, https://www.buffalony.gov/DocumentCenter/View/15554/RP-524-GRIEVANCE-FORM-2026. Reviewed 2026-08-09.
Source: New York State Department of Taxation and Finance, Grievance Procedures, https://www.tax.ny.gov/pit/property/contest/grievproced.htm. Reviewed 2026-08-09.
Visit FairPath with JavaScript enabled for the full experience.