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Phone: 1-844-898-8542 
Fax: 803-896-1682
Email: CorpTax@dor.sc.gov

 

​​​Summary:

Public Utilities are subject to a 5% income tax and an annual License Fee. Compute the License Fee at 0.1% (rounded up) of the fair market value of property owned and used in South Carolina to conduct business, as determined by the SCDOR for the prior year's Property Tax. Public Utilities must add 0.3% (rounded up) of gross receipts from services rendered from regulated business in South Carolina during the prior tax year. The minimum License Fee is $25.

Gross receipts, as used in SC Code Section 12-20-100, include all receipts from operations in South Carolina, and other profit and loss items located in South Carolina. Income from intangibles used to conduct business in South Carolina is also included in gross receipts. For more information, see SC Regulation 117-1075.1 at dor.sc.gov/policy.

eServices:

   MyDORWAY: Make your Corporate tax payment on MyDORWAY. No sign in required!

   Electronic Funds Transfer (EFT)- Visit GovOne to make SCDOR tax payments online OR call 1-800-834-7733 to make tax payments with operator assistance or over the Interactive Voice Response system. Taxpayers must complete and submit the Registration Application For Electronic Funds Transfer D-128 before tax payments can be made via EFT.

Mailing Addresses:

​​Refund or Zero ReturnBalance Due ReturnEstimated Tax (SC1120CDP),  Tentative (SC1120T), or Voucher (SC1120V) 
​Correspondence
​​Refund or Zero Return​​South Carolina Department of Revenue
Corporate Refund
PO Box 125
Columbia, SC 29214-0032
Balance Due Return​ ​South Carolina Department of Revenue
Corporate Tax
PO Box 100151
Columbia, SC 29202
CDP, Tentative or S-WH​​South Carolina Department of Revenue
Corporate Voucher
PO Box 100153
Columbia, SC 29202
​South Carolina Department of Revenue 
Corporate Tax 
PO Box 125
Columbia, SC 29214-0400

Forms:

SC1120U - Public Utility Tax Return

Due Dates:

  File annually on or before the 15th day of the fourth month after the close of the taxable year except for the initial and/or final return.

  Tentative Corporate Tax Return is due on or before the 15th day of the fourth month after the close of the taxable year.