This form is for general instructions that apply to all corporation tax forms. It includes a variety of topics about how to fill out your form.Complete Form W-4 so that your employer can withhold the correct federal income tax from your pay. Give Form W-4 to your employer. I will notify my employer within 10 days of any change requiring revocation of the exemption from withholding as explained in the instructions. In general, this does not apply to the Dutch cooperative. 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. Use Form 587, Nonresident Withholding. Allocation Worksheet, to determine if withholding is required and the amount of California source income subject to.