Filers with multiple jobs or working spouses: you will need to file an SC W-4 for each employer.
Regular wages: withholding must be based on allowances you claimed and may not be a flat amount or percentage of wages.
Too much tax withheld: if you have too much tax withheld, you will receive a refund when you file your South Carolina Individual Income Tax return.
Too little tax withheld: if you have too little tax withheld, you will owe tax when you file your tax return, and you might owe a penalty.
New hire reporting: you must report newly-hired employees within 20 days after the employee's first day of work.
| Question | Answer |
|---|---|
| Form Name | SC W-4 |
| Form Length | 3 pages |
| Fillable? | Yes |
| Fillable fields | 42 |
| Avg. time to fill out | 7 min |
| Edition | Rev 12/5/25 |
| Issuing agency | South Carolina Department of Revenue |
| Exemption | Expires on December 31, 2026, unless you submit a new SC W-4 to your employer |
| Matches the agency's file | Yes, checked October 3, 2026 |
| Other names | SC W-4, SC W4, South Carolina W-4, South Carolina W4, SCW4, SC withholding form, Employee's Withholding Allowance Certificate |
| Official source | SC W-4 (Rev 12/5/25), South Carolina Department of Revenue |
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