Apply for a New Business Tax Certificate online or at the Business Tax Office. Refundable business registration fee plus special fees.The Tax Department is streamlining withholding tax and wage reporting forms and Web File applications. Vacant Property Tax (VPT). Gov and search for withholding requirements for updates, online tools, and more information, including: Forms and Publications You must give Form NJ-W4 to your employees to fill out and return to you. This form tells you how to withhold tax from your employee's pay. Request to withhold taxes. Submit a request to pay taxes on your Social Security benefit throughout the year instead of paying a large bill at tax time.