The SCDOR recommends that public utilities request their extension of time to file online using our free tax portal, MyDORWAY. Visit dor.sc.gov/pay and select Business Income Tax Payment to get started. 

• Your payment on MyDORWAY automatically submits your filing extension request.
  
• No additional paperwork required! 

If you’re not making your extension request online, mail the SC1120T​ to the address on the form.

• Be sure to include your correct FEIN on the SC1120T. Providing an incorrect FEIN results in processing delays and errors in posting payments. 
• Make your check payable to the SCDOR. 
• Include your name, FEIN, tax year, and SC1120T in the memo. 

There is no extension of time for payment of your Corporate Tax or License Fee.

The SCDOR recommends that public utilities make Estimated Tax payments on our free tax portal, MyDORWAY, by going to dor.sc.gov/pay:

• Select Business Income Tax Payment
• TIP: ​If you have a MyDORWAY account, you can log in to schedule your payments. 
• ​Do not mail in your SC1120CDP paper form if you pay online. 

If filing your SC1120CDP by paper:

• Make your check payable to "SCDOR" and include your name, FEIN, tax year, and SC1120CDP in the memo. 
• Mail your SC1120CDP and payment in one envelope.