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Estimated 3rd quarter 2025 bills were mailed June 12, 2025.
Click HERE to pay or lookup amounts due online. Digital copies of bills are also available online. Please pay the exact amount noted as due on your bill.
The estimated portion of the bill is the Tax Rate. We have not yet received a certified rate from Morris County.
3rd quarter taxes are due August 1, 2025 and the grace period for the
3rd quarter is until August 11, 2025.
Payments received after 8/11/25 are subject to an interest penalty fee.
Tax Collector Office
1st Floor
Bowers Building
6 W. Main St.
Mendham, NJ 07945
6 W. Main St.
Mendham, NJ 07945
Liz Holtz, Borough Tax Collector, CTC
973-543-7152 *17
Office Hours
Thursday 8:30-3:30pm
Tuesday afternoon by appointment
PROPERTY TAX DUE DATES | |||
Billing Quarter
|
Months Covered
|
Due Date
|
Deadline
|
1st Quarter | January - March | 1-Feb | 10-Feb |
2nd Quarter | April - June | 1-May | 10-May |
3rd Quarter | July - September | 1-Aug | 10-Aug |
4th Quarter | October - December | 1-Nov | 10-Nov |
If the 10th falls on a weekend or a Borough holiday, the grace period is extended to the Borough’s next business day. |
- PAY ONLINE & LOOK UP AMOUNT DUE
- PAY IN PERSON
- 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
- Bowers Building-1st Floor
- SAMPLE TAX BILL AND INSTRUCTIONS
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