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What is a South Carolina Single Identification Number?


You're setting up a filing calendar for South Carolina and need to provide the South Carolina SID Number.





  • When you fill out your company and banking information, one of the unique required fields for South Carolina File is the SID number in order for the Compliance team to file your return on your behalf.
  • Obtain your SID directly from the Department of Revenue
    • The first 7 digits is a unique number used for all tax types.
      • Use this part of the number for the SID number South Carolina File.
    • Use the entire 11-digit number on all correspondence to the Department of Revenue.