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Phone: 1-844-898-8542​


​​Corporate Taxes​

C ​Corporation
S Corporation
Electric Cooperative
Public Utility
Savings & Loan

New for 2022

Conformity: South Carolina recognizes the Internal Revenue Code (IRC) as amended through December 31, 2021, except as otherwise provided. If IRC sections adopted by South Carolina that expired on December 31, 2021 are extended, but otherwise not amended, by congressional enactment during 2022, these sections or portions thereof are also extended for South Carolina purposes in the same manner that they are extended for federal Income Tax purposes.

2022 Legislative Update: A list of significant changes in tax and regulatory laws and regulations enacted during the 2022 legislative session is available at

Due Dates

 All corporate taxable entities (other than S Corporations and eleemosynary) 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 (SC1120-T) is due for all corporate taxable entities except the eleemosynary on or before the 15th day of the fourth month after the close of the taxable year.

Business Income Tax Refund Status

To check the status of your current year South Carolina Business Income Tax refund, you will need to enter the following information on MyDORWAY:

  • FEIN (Federal Employer Identification Number)
  • Refund Amount

Mailing Addresses

​​Refund or Zero ReturnBalance Due Return or S-WH​ Estimated Tax (SC1120CDP),  Tentative (SC1120T), or Voucher (SC1120V) 
​​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