What “Grieving” Your Property Taxes Really Means
When people say “grieving your property taxes,” they’re usually referring to the property tax grievance or assessment appeal process — a formal way to contest the assessed value of your property (not the tax rate itself). The goal is to lower your assessment, which often leads to lower tax bills.
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A grievance targets the assessment (valuation) assigned by the assessor.
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If your assessment is reduced, your taxes go down accordingly (unless tax rates rise).
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You can file every year during the applicable window.
Local Resources & Help
Official Government Resources
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New York State Property Assessment Grievance Info — General instructions and forms including RP-524 form basics.
Nassau County
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Nassau County Assessment Review Commission (ARC) — tentative rolls, deadlines, online filing via AROW.
Phone: (516) 571-3214
Suffolk County
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Town assessor’s offices (e.g., Town of Babylon, Islip, Huntington) — grievance schedules and forms vary.
Community & DIY Support
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“Nassau Grieve Your Tax Assessment” Facebook Group — community support to help homeowners file on their own.
Local Tax Grievance Services
If you prefer professional help, many companies offer services for Nassau and Suffolk grievances — often with little or no upfront cost, and with payment contingent on savings (e.g., Ownwell, Grieve Now, Mark Lewis, etc.).
(Note: Be sure to check terms and fees before engaging any service.)