New Jersey runs a highly structured statewide appeal calendar with a hard statutory April 1 deadline for most municipalities. Properties in revaluation/reassessment years get an extended May 1 deadline. Direct-to-Tax-Court filings are required for properties assessed over $1 million (commercial threshold). Two counties — Monmouth and Gloucester — operate under the Assessment Demonstration Program (ADP) with a January 15 deadline. NJ has the highest effective property tax rates in the country, making appeals especially valuable.
Verify before filing. Statutory deadlines change, and many counties operate on their own schedule inside the state framework. Always confirm the current year's window with the assessor or appeal board for the specific jurisdiction before relying on a date.
State-level deadlines plus major sub-jurisdictions where the schedule diverges from the state default. Where a column says "Varies," confirm the date with the local assessor.
| Month | Type | Event | Date | Details |
|---|---|---|---|---|
| January | RP | Assessment notices mailed (Chapter 75 cards) |
By February 1 | Postcards listing the new assessed value mailed to all property owners by Feb 1 of the tax year. |
| January | RP | Annual appeal deadline (ADP counties) Monmouth, Gloucester counties |
January 15 | Monmouth and Gloucester counties operate under the Assessment Demonstration Program with an earlier filing deadline. |
| April | RP | Annual appeal deadline (most counties) |
April 1 | Standard statewide annual deadline for County Board of Taxation petitions and direct Tax Court filings (assessed value > $1M). |
| May | RP | Extended deadline — revaluation/reassessment |
May 1 | Municipalities undergoing a municipal-wide revaluation or reassessment receive a one-month extension. |
RP = Real Property · BPP = Business Personal Property · Both = Applies to both
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