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Find your South Carolina tax account info

Income tax withholding

If you’ve run payroll in South Carolina in the past, you can find your SC Withholding File Number on notices received from the State of South Carolina Department of Revenue, or by calling the agency at (803) 896-1450.

Unemployment tax

If you've run payroll in South Carolina in the past, you can find your Employer Account Number on the Employer Package, Liability Letter, and Employer Quarterly Contribution and Wages Report (Form UCE-120) received from the South Carolina Department of Employment and Workforce. This number is typically six digits. If you have a seven digit number with a leading zero, please omit the zero when entering your number.

Unemployment tax rate

You can find your Unemployment Tax Rate on the Rate Notice from the SC Dept. of Employment and Workforce. If you're unsure, you should call the agency at (803) 737-3080 or email [email protected].

Click here to view state-by-state UI rates and wage bases.

When entering your unemployment tax rate in your account, please do not enter the Department Administrative Contingency Assessment (DACA) rate of 0.060% as Gusto includes this rate automatically.

Most tax rate notices include an Unemployment Insurance Tax rate, a Trust Fund Replenishment rate, and the 0.60% DACA rate in the total rate - you'll need reduce the total rate by this percentage before entering the rate in Gusto.

  • For instance, a total rate of 0.870% on your notice would be entered into Gusto as 0.81% (0.870% - 0.060% = 0.810%). The total should be the sum of the "Unemployment Insurance Tax" rate and the "Trust Fund Replenishment" rate found on the notice (less the DACA rate of 0.60%).

Owner's wages

If you have owners or partners listed in your South Carolina State Unemployment Insurance Tax System (SC SUITS) account who have received an exemption from South Carolina unemployment insurance (UI) taxes, then these owner's wages must be excluded from your quarterly wage reports to the state or your entire tax filing will be rejected by the state.

To add a tax exemption for this owner for South Carolina Unemployment Insurance taxes, following the steps listed in this article—this ensures we do not report their wages in error.

Checking the company’s owner’s information on file with the state

If you have an online SC SUITS account, follow these instructions to view or update owner information:

  1. Sign in to your SC SUITS account using your personal username and password.
  2. Under the "Your Options" header, select Account Maintenance.
  3. Under the "Employer Account" header, select the Employer Maintenance link.
  4. Under the "Other Information" header, select the Ownership Summary tab to review the business owners you have listed with the agency.
  5. To add, remove, or modify the owners or their information, click Edit Ownership.

Written authorization

South Carolina DEW also requires that employers complete and file a Written Authorization (Form UCE-1010) in order for Gusto to resolve tax matters on your behalf. To do so: 

  1. Find the document in Gusto under the Company section > Documents > Company tab > then South Carolina Written Authorization form.
  2. Complete the steps to sign the form in Gusto.
  3. Download the signed form from Gusto to your computer.
  4. Go to the agency SUITS website.
  5. In the Employer Portal, select the “Agent Assignment” icon under the Account Maintenance screen. 
  6. Click Add Agent
  7. Search for Gusto's Agent Account number: SC0I6L
  8. Next to Authorization Document, click Choose File
  9. Browse and select the signed Written Authorization from Gusto and upload the POA. 
  10. Select the following roles: 
    • Payment Submission 
    • Wage Submission (Original and Amended) 
    • Account Maintenance 
  11. Select the date you want Gusto to start processing payroll in South Carolina in the "Access Begin Date" field.
    • Leave the "Access End Date" blank.

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