South Carolina EIN: MyDORWAY Withholding and SUITS UI

After your EIN in South Carolina

The SCDOR Business Tax Application on MyDORWAY applies for a Retail License and the business's tax accounts, with withholding and sales and use tax among the tax types offered. Unemployment insurance is registered separately with DEW in SUITS.

South Carolina's withholding account number is nine digits, and the Department of Revenue requires all nine digits on every withholding return and payment. Withholding returns are due by the end of the month after each quarter ends, with the fourth quarter return due January 31.

South Carolina unemployment insurance is a separate registration with the Department of Employment and Workforce in SUITS, its State Unemployment Insurance Tax System. Registration asks for the FEIN, and most employers can register, receive an account number, file wages and pay in the same session.

Also on the South Carolina list

• Apply through the Business Tax Application on MyDORWAY, the South Carolina Department of Revenue's online tax portal, for a Retail License and the other tax accounts the business needs; the Department asks an LLC for its FEIN on the application.
• If the LLC operates inside a city or county that levies a business license tax, obtain that local business license and renew it before May 1 each year, since every South Carolina jurisdiction now runs the same May 1 to April 30 license year.

Agency sites checked November 1, 2026 · All 50 states

What is different about South Carolina

• South Carolina LLCs file no annual report unless they are taxed as a corporation. The Department of Revenue lists an LLC not taxed as a corporation as exempt from both the annual report and the corporate License Fee; an LLC that elects corporate taxation must send the CL-1 Initial Annual Report of Corporations to the Department within 60 days of commencing business in the state.
• In South Carolina the corporate annual report is part of the state income tax return filed with the Department of Revenue, not a separate filing with the Secretary of State. For an S corporation, including an LLC taxed as one, the annual report is Schedule D of the SC1120S.
• The Business License Tax Standardization Act requires every South Carolina city and county that levies a business license tax to issue licenses for the same twelve-month period, May 1 through April 30, and to accept renewals through a single business license tax portal run by the state Revenue and Fiscal Affairs Office, so a business licensed in several jurisdictions can renew them all in one place.
• The Department of Revenue identifies business tax accounts by a file number rather than by the EIN: for sales tax the file number is the Retail License Number, and for withholding it is the Withholding Number. A separate Retail License is required for each business location, and the license does not expire.

Before you apply

The SS-4 must match the South Carolina Secretary of State filing; its entity ID is a state index, not a tax ID.

South Carolina EIN questions