Skip Ribbon Commands
Skip to main content
Sign In

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​

South Carolina Department of Revenue
Utilities
 
2070 Northbrook Blvd. 
Ste B7
North Charleston, SC 29406

Phone: 843-953-8371
Fax: 843-553-2860
Email: Utility.PropertyTax@dor.sc.gov

Utilities

Utilities Property Tax is assessed on all real and personal property of companies that fall under the classification of "utilities," as well as railroads and pipelines. This tax is assessed based on fair market value, and the SCDOR may use any accepted or recognized valuation method which reflects the property's fair market value. This includes methods within the unit valuation concept.

"Utilities" include (but are not limited to)

  • Water and sewer companies
  • Power companies (hydroelectric, steam, atomic, or other kinds for the transmission of power)
  • Electric light companies
  • Electric cooperatives
  • Telephone companies
  • Wireless telecommunication companies
  • Cable companies
  • Railroads and pipelines are also considered utilities for reporting purposes as they are engaged in the transportation for hire of persons or property, but these utilities are classified separately related to the assessment ratio that is used. 

Assessment ratios 

  • 10.5% for water & sewer companies, power companies, telecommunication companies, and cable television companies
  • 9.5% for railroads and pipeline


How to file & pay

We recommend filing your returns and registering for a Utility Property Tax account online using MyDORWAY, our free and secure tax portal.

Download Utility Property Tax return forms
  • Water and sewer companies: PT-139
  • Telecommunication companies, power companies, railroads, and pipelines: PT-420
  • Cable television companies: PT-433

Along with the specific Utility Property Tax return form, you should also submit the PT-427 and PT-429 and any relevant annual reports or financial statements.


Filing due date
Returns are due the the fourth month after
the close of the company’s accounting period. For example, if the company’s accounting closing period is December 31, then the return is due by April 30. 


Appeal per​​iod

Utility companies have 90 days from the date of the proposed assessment to appeal. Appeal procedures are attached to the proposed assessment. 

Need to close your business tax account?
On your final return, select the box labeled Final/All Zero near the top of the return.