South Carolina State Income Tax Withholding
Reference Number: NFC-24-1712060295
Published: April 5, 2024
Effective: Pay Period 04, 2024
Summary
The income tax withholding for the State of South Carolina includes the following changes:
- The exemption allowance has changed from $4,310 to $4,610.
- The maximum standard deduction in the case of any exemptions has changed from $6,475 to $6,925.
- The State tax table has changed.
No action on the part of the employee or the personnel office is necessary.
Tax Formula
|
State Abbreviation: |
SC |
|
State Tax Withholding State Code: |
45 |
|
Acceptable Exemption Form: |
SC-4 or W-4 (see the Additional Information section) |
|
Basis for Withholding: |
State or Federal Exemptions (see the Additional Information section) |
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Acceptable Exemption Data: |
0/Number of Exemptions |
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TSP Deferred: |
Yes |
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Special Coding: |
Determine the Total Number of Allowances field as follows: First Position - Enter 0 (zero). Second and Third Positions - Enter the number of exemptions claimed. |
|
Additional Information: |
Employees who have not previously submitted an SC W-4 and have submitted a 2020 or later Federal Form W-4 will default to zero (00) allowances. Employees who have not previously submitted an SC W-4 and have not submitted a 2020 or later Federal Form W-4 will default to the prior to 2020 Federal Form W-4 submission. |
Withholding Formula (Effective Pay Period 04, 2024)
- Subtract the biweekly Thrift Savings Plan contribution from the gross biweekly wages.
- Subtract the nontaxable biweekly Federal Employees Health Benefits Plan payment(s) (includes dental and vision insurance program, and Flexible Spending Account — health care and dependent care deductions) from the amount computed in step 1.
- Add taxable biweekly fringe benefits (e.g., taxable life insurance) to the amount computed in step 2 to obtain the adjusted gross biweekly wages.
- Multiply the adjusted gross biweekly wages by the number of pay dates in the tax year to obtain the gross annual wages.
- Determine the standard deduction by applying the following guideline and subtract this amount from the gross annual wages calculated in step 4:
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If the Number of Exemptions Claimed Is:1 |
Subtract This Amount:2 |
|---|---|
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One or more |
10% of annual wages or $6,925 |
1 Use annual wages when no exemptions are claimed.
2 Use the lesser amount.
- Determine the personal exemption allowance by applying the following guideline and subtracting this amount from the result of step 5 to compute the taxable income:
Multiply the number of allowances by $4,610.
- Apply the taxable income computed in step 6 to the following table to determine the South Carolina tax withholding:
Tax Withholding Tables
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If the Amount of Taxable Income Is: |
The Amount of Tax Withholding Should Be: |
|---|---|
|
Over $0 but not over $3,460 |
$0 |
|
Over $3,460 but not over $17,330 |
$0.00 plus 3.0% of excess over $3,460 |
|
Over $17,330 |
$416.10 plus 6.4% of excess over $17,330 |
- Divide the annual South Carolina tax withholding calculated in step 7 by the number of pay dates in the tax year to obtain the biweekly South Carolina tax withholding.
Resources
To view the updated tax formula, go to the HR and Payroll Clients page from the MyNFC drop-down menu on the National Finance Center (NFC) Home page. Select the Publications tab and select Taxes from the Publications Library section to launch the tax map. Select the desired State from the map provided for the formula.
Inquiries
For questions about NFC processing, authorized Servicing Personnel Office representatives should contact the NFC Contact Center at 1-855-NFC-4GOV (1-855-632-4468) or via the customer service portal at ServiceNow Portal for Federated Users and at ServiceNow Portal for Non-Federated Users.