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Tax Collector Office
1st Floor
Bowers Building
6 W. Main St.
Mendham, NJ 07945
Liz Holtz, Borough Tax Collector, CTC
Tax Questions?
973-543-7152 *17
Office Hours
Friday 8:30-3:30pm
Tuesday afternoon by appointment
The online payment portal for tax and sewer is temporarily offline due to vendor issues. Please mail a check or use one of the drop boxes at 2 West Main (Phoenix House) or 6 West Main St (Bowers Building) for both sewer and the 4th quarter tax payment as we anticipate it will be another 4-5 weeks before the online payments are live

The 2023 Final/2024 Preliminary tax bills have been mailed out.  If you do not receive your bill by the first week in October, please feel free to reach out to the Tax Department for a duplicate copy of your bill. Payment for the 4th quarter is due November 1. If a mortgage company pays your taxes, the bill that you will receive will say "This is not a Bill - For Advice Only". Your mortgage company has been notified of the payment amount due and the Advice Copy is for your records.

Please contact the Tax Collector if you have any questions at

    • Bowers Building-1st Floor
      • Friday Only
      • 8:30am-3:30pm
    • Phoenix House-1st Floor
      • Monday through Friday
      • 9:00am-4:30pm
      • Borough Clerk's Office


  • Seniors already in the Senior Freeze Program
    • Filing deadline for PTR-2 Form is November 1, 2023.
    • Your PTR-2 Form needs to be certified by the Tax Collector.
    • Seniors who are already in the program should have received their 2021 PTR-2 forms in February 2023.
    • Instruction PTR-2 Form
  • Seniors Filing for the First Time
Applicants are encouraged to consult the detailed information posted on the Division of Taxation’s website, including the Frequently Asked Questions.
 ANCHOR hotline at 1-888-238-1233.  
    • The program provides property tax relief to New Jersey resident homeowners who owned or rented their principal residence (main home) on October 1, 2019, and meet the required income limits.
  • Homeowner
    • You are considered a homeowner if, on October 1, 2019, you:
      • Owned a house.
      • Owned a condominium and paid property taxes on your unit. 
      • Were a resident shareholder of a cooperative housing complex.
      • Were a resident of a continuing care retirement community and your continuing care contract requires you to pay the proportionate share of property taxes attributable to your unit.
    • You do not qualify if your residence was completely exempt from paying property taxes or you made PILOT (Payments-in-Lieu-of-Tax) payments.
  • Tenant
    • Tenants who had previously been ineligible because their units are under PILOT (Payment in Lieu of Taxes) agreements are now eligible to apply for the benefit.
    • You are considered a tenant if, on October 1, 2019, you:
      • Rented an apartment, condominium, or house.
      • Rented or owned a mobile home located in a mobile home park.
    • You do not qualify if you lived in tax-exempt, subsidized, or campus housing.
  • A​​​​pplication Deadline
    • The deadline for filing your ANCHOR benefit application is February 28, 2023. 
  • Income Eligibility Requirements and Tax Relief Amount
    • Homeowners with incomes of $150,000 or less will receive $1,500.
    • Homeowners with incomes more than $150,000 and up to $250,000 will receive $1,000.
    • Renters with incomes of $150,000 or less will receive $450.
  •  How to Apply
    • Eligible homeowners can apply online, by phone, or upload or mail a paper application and necessary attachments using the program's Electronic Filing System.
    • Eligible renters can apply online, or upload or mail a paper application and necessary attachments using the program's Electronic Filing System (no phone option.)
Apply by phone: 1-877-658-2972

Attention Sewer Utility Customers - Please use the links provided below for utility assistance:

Low Income Household Water Assistance Program

The State’s Low Income Household Water Assistance Program (LIHWAP) can help you pay arrears for your water and sewer bills. The program can help you to avoid service disruptions, restore services, stay up-to-date with your payments, and pay reconnections fees. To get more information and apply, go to or call NJ211.