The Tax Department is streamlining withholding tax and wage reporting forms and Web File applications. Use to identify and withhold the correct federal income tax from your pay.What Is This Form For? Enter the total of gross income received in the quarter for occupancy of all rooms in your establishment. A single personal property assessment is made for all taxable personal property of the owner located in the city or town. 2. 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. These are electronic federal tax forms, equivalent to a paper 1040 and are designed for taxpayers who are comfortable filling out IRS tax forms. As an employer, you must record sums that are withheld from employee wages in a ledger account to clearly indicate the amount of state tax withheld.