Township of Mendham

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The reassessment of all real estate property in the Township of Mendham, which began in 2022, has continued on an annual basis to ensure uniform and equitable assessments. Associated Appraisal Group (AAG) has analyzed market data over the past year to determine the value of all properties in the Township as of October 1, 2025, for use in establishing new assessments for 2026. The market analysis has been carried out in accordance with the rules and regulations mandated by the State of New Jersey. 

The projected aggregate value of the total assessments in Mendham Township has increased for tax year 2026; therefore, the tax rate will change in a reciprocal manner. For comparative purposes, a tax rate of $1.671 (per $100 of assessed value) has been estimated for 2026 to give property owners a sense of how their property taxes may change based on the new 2026 proposed property assessments. This estimated tax rate uses the budget levy from 2025 AND DOES NOT INCLUDE any potential budget levy changes that might occur in 2026. The exact tax rate for 2026 cannot be computed until the County, School and Municipal budgets are approved and calculated into the official tax rate next year (typically late June). 

If you desire, you may speak with an Associated Appraisal Group, Inc. representative to discuss any relevant information regarding your new 2026 assessed value as it relates to the market value of your property.  Meetings can be arranged by calling (201) 493-8530 Monday-Friday between the hours of 9:30 A.M and 4:00 P.M. Meetings will be conducted through December 15, 2025 so please call as soon as possible.

If you wish to request a copy of your property record card for your review, please email mendham@njaag.com. Please allow up to 72 hours to receive your property record card by email.

Thank you for your cooperation during the reassessment process.