Public Utility- FAQ

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PUBLIC UTILITY

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Summary

Filing Requirements

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FAQ

Corporate Home

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

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Public Utility Frequently Asked Questions

How do I set up a corporate account for a Public Utility with the SCDOR?

Filing a Public Utility Tax return automatically registers you with the SCDOR. If this is your first return filed, check the Initial Return box on the front of the SC1120U. Once your Corporate Income Tax account is registered with the SCDOR, we will send you a Corporate Registration Filing Requirements letter (SC1070). This letter includes important information about your Public Utility filing requirements. To avoid processing delays, be sure to include your FEIN on all returns, payments, and correspondence sent to the SCDOR.

The SCDOR has no role in requiring a Certificate of Authority with the South Carolina Secretary of State’s Office (SCSOS) to do business in South Carolina. Questions about who is required to have a Certificate of Authority should be directed to the SCSOS.

The requirements for a Certificate of Authority are in Chapter 15 Title 33 of the South Carolina Code of Laws.

What form do I use to file a Public Utility Tax return and when is the form due?

Public Utilities file the SC1120U. The SC1120U is due by the 15th day of the fourth month after the tax year end.

Can I request an extension of time to file my return?

Use the SC1120T to request an extension of time to file a Public Utility Tax return.

Save time and paper! Request your extension to file by paying your balance due on our free tax portal, MyDORWAY. Select Business Income Tax Payment to get started. Your payment on MyDORWAY automatically submits your filing extension request. No additional form or paperwork is required.

There is no extension of time to pay. Any tax due must be paid by the due date to avoid late penalties and interest.

Check the Extension box on the front of the SC1120U if you requested a South Carolina or federal extension.

Will a federal extension be accepted to extend the South Carolina Public Utility Tax Return?

If you do not anticipate owing tax, and you requested a federal extension of time to file your federal Income Tax return, we will accept a copy of the properly filed federal extension as long as the Public Utility Tax return is received within the extended time allowed by the IRS.

When are Estimated Tax payments due?

Public Utilities must make Estimated Tax payments if their Estimated Tax (Income Tax less credits) is determined to be $100 or more. Quarterly installments are due by the 15^th day of the fourth, sixth, ninth, and twelfth months of the tax year.

How can I make Estimated Tax payments?

Public Utilities can pay Estimated Income Tax payments online using our free tax portal, MyDORWAY. Select Business Income Tax Payment to get started. Do not submit the SC1120-CDP if you pay online.

Public Utilities can also pay Estimated Income Tax payments electronically through Electronic Funds Transfer (EFT). To get started, the company must register with the SCDOR. The registration process takes up to three weeks. If you are interested in the EFT program, complete and submit a D-128.

If filing by paper, mail the completed SC1120-CDP along with payment to: SCDOR, Corporation Voucher, PO Box 100153, Columbia, SC 29202. Include the name of the Public Utility and FEIN in the memo line of the check or money order. Make your check payable to SCDOR. Include your name, FEIN, tax year, and SC1120-CDP in the memo. Do not send cash.

Your FEIN (Federal Employer Identification Number) is required to ensure proper credit of payments submitted. Providing an incorrect FEIN will result in processing delays and errors in posting the payments.

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