South Carolina Self-Employment Tax Calculator 2026
South Carolina has a graduated income tax with rates ranging from 0.0% to 6.4%. Use this calculator to estimate your total tax liability including federal self-employment tax, federal income tax, and South Carolina state income tax.
Your 2026 Tax Estimate — South Carolina
Total Tax
$0
Take Home
$0
Effective Rate
0%
Quarterly Payment
$0
Tax Breakdown
Quarterly Estimated Tax Schedule
Self-Employment Tax in South Carolina (SC)
If you're self-employed in South Carolina, you'll pay three types of tax on your 1099 income: federal self-employment tax (15.3%), federal income tax (10-37% depending on your bracket), and South Carolina state income tax. South Carolina has a graduated income tax with rates ranging from 0.0% to 6.4%.
Important note: South Carolina is phasing down its top rate.
South Carolina Income Tax Brackets (2026)
| Income Range | Tax Rate |
|---|---|
| $0 – $3,460 | 0.00% |
| $3,460 – $17,330 | 3.00% |
| Over $17,330 | 6.40% |
How Self-Employment Tax Works
The federal self-employment tax rate is 15.3% — covering both Social Security (12.4%) and Medicare (2.9%). This is calculated on 92.35% of your net self-employment earnings. For 2026, Social Security tax applies to earnings up to $176,100. You can deduct half of your SE tax when calculating your federal income tax, which reduces your overall tax burden.
Other States
No Income Tax States
South Carolina Tax Quick Facts
- Income Tax
- Yes
- Tax Type
- graduated
- Top Rate
- 6.40%
- Federal SE Tax
- 15.3%