Mercer County Treasurer & Tax Collector

Find Mercer 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.


Ewing Township Tax Collector 2 Jake Garzio Drive Ewing NJ 08628 609-883-2900


Lawrence Township Tax Collector 357 Main Street Lawrence NJ 08311 856-447-3223

Lawrenceville Tax Collector 2207 Lawrenceville Road Lawrence NJ 08648 609-844-7041

Mercer County Administration Building PO Box 8068 Trenton NJ 08650 609-989-6704

New Jersey State Treasurer 125 West State Street Trenton NJ 08608 609-292-1040

Princeton Tax Collector 1 Monument Drive Princeton NJ 08540 609-497-7625

Treasurers & Tax Collectors by City

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.