Mountainside Tax Collector in Mountainside, New Jersey

When visiting this tax collector office, bring your property tax bill or parcel number, a valid photo ID, and your preferred payment method — cash, check, or card. Mountainside Tax Collector is located at 1385 U.s. 22, Mountainside, NJ. If you are applying for a homestead or other exemption, bring documentation supporting your eligibility, such as proof of primary residence, veteran discharge papers (DD-214), or a disability certification letter.

About Mountainside Tax Collector

The Mountainside Tax Collector, located in Mountainside, New Jersey is responsible for financial transactions, including issuing Union County tax bills, collecting personal and real property tax payments. The Union County Treasurer and Tax Collector's Office is part of the Union County Finance Department that encompasses all financial functions of the local government.

• Property tax bill lookup and payment processing at Mountainside Tax Collector
• Homestead, senior, veteran, and disability exemption applications
• Delinquent tax payment plans and lien removal procedures
• Tax deed sales, tax lien auctions, and investor registration