• W-4 Tax Forms

    IRS W-4

    The Internal Revenue Service (IRS) has changed the format of the 2021 W-4 Employee Withholding Certificate.  Employees who want to adjust their Federal withholding for tax year 2020 must complete the new version of the form. 

    For help and instructions with the new form, visit the IRS FAQ page.  The IRS has also created an online withholding estimator that can assist you in determining the amounts needed for the new form.

    Any changes submitted on this form will only impact your federal withholding amounts.  See below for instructions to change to your South Carolina withholdings.

    SC W-4

    Prior to the calendar year 2020, South Carolina did not have a separate W-4 form.  Due to the changes in the IRS form listed above, South Carolina has created a new SC W-4 Withholding Certificate.  All employees who want to make changes to their SC withholding amounts must submit this new version to payroll.  This form will not impact your federal tax withholding.  This form will only change your South Carolina withholding amount.


    Employees are not required to submit either new form unless they want to make a change to future withholding amounts.


    How do I change my federal and state withholding amounts?  Answer:  Submit both forms listed above to Payroll.

    What if want to change one, but not the other? Answer: Submit only the designated form for the withholding amount you want to change.    

    What if I am a new-hire who has not submitted either form? Answer:  The payroll system will default your withholding for both tax agencies to the maximum allowed until you submit a form instructing us to change your amounts.

    How do I submit a form to Payroll? Answer: Forms can be submitted via fax (843-488-6726), sealed in an inter-office mail envelope, or US mail.  Please do not email tax forms to payroll.  Regular email is not a secure delivery method.

    Form Links:

    Submit forms

    • Fax (843) 488-6726
    • Sealed in an inter-office courier envelope to: Payroll Dept.
    • US Mail to HCS Payroll, PO Box 260005,  Conway SC 29528-6005
    • Please do not email tax forms to payroll.  Regular email is not a secure delivery method.