Middlesex County Treasurer & Tax Collector

Find Middlesex County New Jersey treasurer, tax collector, tax assessor, and property assessor. Treasurers and tax collectors provide information on property searches, tax bills, property liens, tax assessed values, and deductions.


Carteret Tax Collector 20 Cooke Avenue Carteret NJ 07008 732-541-3820


Cranbury Tax Collector 23 North Main Street Cranbury NJ 08512 609-395-0760

Dunellen Treasurer 353 North Avenue Dunellen NJ 08812 732-968-1226

Edison Tax Collector 100 Municipal Boulevard Edison NJ 08817 732-248-7228

Highland Park Tax Collector 221 South 5th Avenue Highland Park NJ 08904 732-819-3786

Middlesex County Board Of Taxation 75 Bayard Street New Brunswick NJ 08901 732-745-5030

Middlesex Tax Collector 1200 Mountain Avenue Middlesex NJ 08846 732-356-7400

Milltown Tax Collector 39 Washington Avenue Milltown NJ 08850 732-828-2100

Monroe Township Tax Collector 1 Municipal Plaza Monroe NJ 08831 732-521-4405

New Brunswick Tax Collector 78 Bayard Street New Brunswick NJ 08901 732-745-5030

Piscataway Tax Collector 455 Hoes Lane Piscataway NJ 08854 732-562-2331

South Plainfield Tax Collector 2480 Plainfield Avenue South Plainfield NJ 07080 908-226-7610

South River Tax Collector 48 Washington Street South River NJ 08882 732-238-3930

Spotswood City Treasurer 77 Summerhill Road Spotswood NJ 08884 732-251-2346

What forms of payment are accepted by Tax Collectors?

Tax Collectors will generally accept cash, personal checks, and credit card payments. Many will also offer online payments using electronic checks, credit cards, or PayPal. It is common for a convenience charge to be added to online payments.

What are special assessments?

Special assessments are additional charges on a property, which are usually associated with a public improvement that benefits certain property owners, such as a sewer assessment. Special assessments are usually added to the owner's property tax bill.

What are supplemental tax bills?

Supplemental tax bills are additional property tax bills that result from a re-appraisal of a property, usually because of a transfer of ownership or a physical improvement or expansion to the property. If the reappraisal determines that additional taxes are owed, a supplemental tax bill is issued.