Somerset County's 2026 regular assessment deadlines depended heavily on municipality. Montgomery, North Plainfield, Raritan, Somerville, and South Bound Brook used April 1. Sixteen revaluation or reassessment districts used May 1: Bedminster, Bernards, Bernardsville, Bound Brook, Branchburg, Bridgewater, Far Hills, Franklin, Green Brook, Hillsborough, Manville, Millstone, Peapack-Gladstone, Rocky Hill, Warren, and Watchung. The county required the Board, municipal assessor, and municipal clerk filings by 4:30 p.m. The regular windows are closed. A petition challenges the total assessment and market-value treatment, not the tax bill itself. FairPath can organize records and owner-selected evidence for 2027, but it does not file, represent an owner, set value, or apply a stale 2026 municipality list to a future year.
Assessment context: Somerset includes established suburban neighborhoods, town centers, multifamily properties, large-lot and estate housing, farms, and corporate or commercial corridors. Select evidence within the relevant municipality and market segment, accounting for zoning, use, block, lot, qualifier, class, living area, lot or acreage, age, renovation, condition, utilities, and location. The county says the owner appeals the total assessed value rather than separating a challenge to land from improvements. For 2026, Somerset advised using comparable sales from October 1, 2024 through October 1, 2025 to address value as of October 1, 2025. The assessment is presumed correct, and credible proof must overcome that presumption. In a revaluation or reassessment district, the new market-value work and property-record accuracy deserve particular attention; tax bills and neighbor assessments remain different questions.
Filing process: Somerset's legal guidelines required the petition not only at the County Board but also at the local assessor and municipal clerk by the filing deadline and 4:30 p.m. close of business. That makes three timely deliveries part of the process. The Board's public page posts hearing dates by municipality and says notices are mailed at least two weeks before the hearing; the notice controls the appearance time. Judgments are mailed after the hearing, and a further Tax Court complaint generally has a 45-day period from mailing. For 2027, identify the municipality before using any calendar, verify the new state implementation list, current form, fee, delivery methods, office cutoff, and hearing schedule. Keep the notice, petition, all three receipts, evidence exchange, hearing notice, inspection correspondence, and judgment.
Evidence to review: Somerset asks owners to use sales near the applicable assessment date and to exchange all evidence with the municipality at least seven days before the hearing. Record municipality, neighborhood, block and lot, deed date, price, property type, living area, acreage, age, condition, renovation, utilities, and transaction circumstances. The county requests photographs of both the subject and proposed comparables. A municipal assessor may request an interior inspection to verify the property record; refusing access can expose the appeal to a dismissal motion, so inspection requests should be documented and handled deliberately. If a licensed appraisal is used, the appraiser must attend to present it. Surveys, permits, inspections, contractor scopes, septic or well information, and income records can support specific issues. FairPath can create the exhibit index while the owner manages service, access, witnesses, and testimony.
Current deadline guidance: April 1, 2026 in five towns; May 1 in sixteen implementation towns. Somerset used April 1 for Montgomery, North Plainfield, Raritan, Somerville, and South Bound Brook. Bedminster, Bernards, Bernardsville, Bound Brook, Branchburg, Bridgewater, Far Hills, Franklin, Green Brook, Hillsborough, Manville, Millstone, Peapack-Gladstone, Rocky Hill, Warren, and Watchung used May 1. Filing and municipal service were due by 4:30 p.m. Both windows are closed.
Somerset had only five April 1 municipalities and sixteen May 1 municipalities in 2026. A generic county deadline would misstate the process for most of the county.
The county required filing with the Board, assessor, and clerk by 4:30 p.m. The municipal copies were not merely later courtesy copies.
Somerset says an assessor may seek an interior inspection and that refusal can jeopardize the hearing through a dismissal motion. Preserve written requests and responses.
The county requested subject and comparable photographs and tied ordinary 2026 sale evidence to the October 2024 through October 2025 period.
Official filing authority: Somerset County Board of Taxation. https://www.somersetcountynj.gov/residents/tax-board
Source: Somerset County Board of Taxation, 2026 Legal Guidelines for Tax Appeals, https://www.somersetcountynj.gov/home/showpublisheddocument/64574/639088314341000000. Reviewed 2026-07-15.
Source: Somerset County Government, Tax Board and 2026 Hearing Schedule, https://www.somersetcountynj.gov/residents/tax-board. Reviewed 2026-07-15.
Source: New Jersey Division of Taxation, 2026 Approved Revaluations and Reassessments, https://www.nj.gov/treasury/taxation/pdf/lpt/revaluation/2026RevalList.pdf. Reviewed 2026-07-15.
Source: New Jersey Division of Taxation, Assessment and Appeals, https://www.nj.gov/treasury/taxation/lpt/lpt-appeal.shtml. Reviewed 2026-07-15.