Ready to file your taxes? Contact Information North Carolina Department of Revenue PO Box 25000 Raleigh, NC 27640-0640 General information: 1-877-252-3052Withholding Tax Forms and Instructions To ensure you are able to view and fill out forms, please save forms to your computer and use the latest. PURPOSE - Complete Form NC-4, Employee's Withholding Allowance. Certificate, so that your employer can withhold the correct amount of. Line 1 - Enter amount of North Carolina income tax required to be withheld. Use ORBIT to access your 1099 or W-2 tax forms. If you file 10 or more South Carolina Withholding returns in a quarter, consider using our Batch Withholding Program to quickly and easily file online.