Telephone numbers: South Carolina Department of Revenue. Employment Security Commission.

Business page on the My South Carolina Government site. Business regulations, which includes business regulations, tax guides and publications, links.

Business Tax Guide. An online guide to "Some of what you'll need to know to open and maintain a successful business in South Carolina."

Department of Revenue. Includes an electronic filing and e-payment system for business taxes.

One-stop Business Registration. Register online as a withholding tax agent and for unemployment insurance.

Change your withholding registration online. Change physical address, mailing address, address of records and/or phone number.

Form SCTC-111, Business Tax Application to register as a withholding tax agent. Print, complete, and mail to the address on the form.

Withholding tax forms on the website of the Department of Revenue.

Unemployment Insurance Employer Handbook, an online guide to your responsibilities.

Form UCE-151, Unemployment Insurance Status Report to determine liability. Print on white paper, complete, and mail to the address on the form. Instructions

Change of Address form for unemployment insurance.

Methods of filing the quarterly Unemployment Insurance report.

Unemployment Insurance Employer page. Includes a download page with forms.

workerscompensation.com, a comprehensive resource for Workers' Compensation in South Carolina, including forms.

Online new hire reporting. Register to report online.