NC Withholding Forms are used by employers to report and remit state income tax withheld from employees' wages in the state of North Carolina. These forms are used to calculate and submit the amount of state income tax that has been withheld from employees' paychecks during the tax year. The forms also enable employers to reconcile the total amount of state income tax withheld throughout the year with the total amount reported on employees' W-2 forms.