Your payment amount should match the amount on line 3 of the Tax Computation Worksheet in these instructions.
Where to send: mail your SC1120-T and payment to SCDOR, Corporate Voucher, PO Box 100153, Columbia, SC 29202.
One envelope: mail your SC1120-T and payment in one envelope.
By paper: use only black ink on the SC1120-T and on your check.
Previous period: if the corporation has not fulfilled its filing requirements for any previous period, the Department of Revenue cannot grant an extension.
Underpayment: an underpayment penalty will apply if the extension payment is less than 90% of the actual amount due for the period.
| Question | Answer |
|---|---|
| Form Name | Form SC1120-T |
| Form Length | 3 pages |
| Fillable? | No |
| Fillable fields | 0 |
| Avg. time to fill out | 9 min |
| Edition | 5/3/22 |
| Issuing agency | South Carolina Department of Revenue |
| Where to send | SCDOR, Corporate Voucher, PO Box 100153, Columbia, SC 29202 |
| Matches the agency's file | Yes, checked October 2, 2026 |
| Other names | SC1120-T, SC 1120-T, SC1120T, SC 1120T, SC1120, SC 1120, Application for Automatic Extension of Time to File Corporate Tax Return |
| Official source | Form SC1120-T (Rev 5/3/22), South Carolina Department of Revenue |
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