Most New Jersey counties work on an April 1 appeal calendar. Three do not. The New Jersey Division of Taxation says Burlington, Gloucester and Monmouth counties “follow an alternative assessment calendar and the tax appeal filing deadline is January 15.” For tax year 2027, January 15 falls on a Friday.
When the assessment postcard arrives
The Division of Taxation’s alternate assessment calendar for these counties lists November 15 of the pre-tax year as the date by which the assessor “shall notify by mail each taxpayer of the current assessment and preceding year’s taxes.”
Burlington County says its 2027 notice of assessment will be delivered in November 2026 and asks owners who have not received the postcard by November 20 to contact their municipal tax assessor. Gloucester County says its assessment postcards “are mailed annually on or before November 15th.”
The January 15 deadline
N.J.S.A. 54:3-21, as amended by P.L.2018, c.94, lets a taxpayer in these counties appeal to the county board of taxation “on or before January 15, or 45 days from the date the bulk mailing of notification of assessment is completed in the taxing district, whichever date is later.” The state’s petition of appeal instructions say that when the last day for filing falls on a Saturday, Sunday or legal holiday, it moves to the next business day.
Each county board publishes its own filing details:
- Burlington County says its online appeal system opens December 3, 2026 at 12:01 a.m. Online filings are due by 11:59 p.m. on January 15, and paper forms must be received by the Board of Taxation by 4:00 p.m. on January 15.
- Gloucester County says appeals must be filed between November 15 and January 15, and that appeals filed online or in person must be filed by 4:00 p.m. on January 15.
- Monmouth County’s Board of Taxation refers to January 15 as its annual deadline and says hearings are generally held after it.
Filing fees
The state’s petition of appeal instructions set filing fees by assessed value: $5 below $150,000; $25 from $150,000 to under $500,000; $100 from $500,000 to under $1,000,000; and $150 at $1,000,000 or more. The fee must accompany the petition.
Assessments over $1 million
Where the assessed value exceeds $1,000,000, the Division of Taxation’s alternate calendar says the taxpayer “may file a complaint directly with the Tax Court on or before April 1 of the tax year.”
Towns with a 2027 reassessment
Burlington County’s calendar table lists January 15 as the appeal deadline for revaluation or reassessment districts under the alternate calendar, compared with May 1 under the standard calendar. Gloucester County says Swedesboro and Newfield are undergoing property reassessments for the 2027 tax year and that proposed valuation letters have been mailed. The Gloucester pages reviewed for this article do not give a separate deadline for those towns; the Gloucester County Board of Taxation can confirm it.
What FairPath does
FairPath organizes the public record, comparable properties the homeowner selects, and condition facts the homeowner documents into a reviewed evidence packet. The homeowner decides whether to file, files through the official process, and attends any hearing. FairPath does not file, represent the homeowner, or guarantee acceptance, a value change, or any other outcome.
Official sources
Sources checked October 14, 2026. Instructions and dates can change, so confirm the current official page before filing.
Check your property free: FairPath’s Burlington County, Monmouth County and Gloucester County guides start with your address and show what the county’s own record says.