Quick answer
South Carolina taxes income in 3 brackets from 0.00% to 6.00% for 2026; for single filers the top rate starts above $18,230. The single-filer standard deduction is $8,350, per the Tax Foundation's compilation of state law as of January 1, 2026.
Data as of 2026-01-01. Source: Tax Foundation (state statutes, Jan 1 2026)
| Single rate | Single: income over | Married-joint rate | Married-joint: income over |
|---|---|---|---|
| 0.00% | $0 | 0.00% | $0 |
| 3.00% | $3,640 | 3.00% | $3,640 |
| 6.00% | $18,230 | 6.00% | $18,230 |
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Last updated 2026-10-16. Data only, not financial or tax advice.