South Carolina Independent Contractor Tax Calculator — 2026
Calculate taxes for independent contractors including 1099 income, self-employment tax, and quarterly estimates.
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Quick South Carolina Tax Estimate
Based on South Carolina's tax rates for 2026. Enter your details for a personalized calculation.
State Tax on $80K Profit
$1,235.13
SE Tax
$11,303.64
Effective Rate
21.7%
Marginal Rate
12%
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South Carolina Tax Information
State Income TaxYes
Top Marginal Rate5%
Sales Tax0%
LLC Filing Fee$0
Annual Report Fee$None
Standard DeductionN/A
Self-employed pay both federal and South Carolina state tax.
South Carolina Income Tax Brackets (2026)
| Tax Rate | From | To |
|---|---|---|
| 2% | $0 | $30,000 |
| 5.2% | $30,000 | No limit |
South Carolina Quarterly Tax Deadlines
Q1
Apr 15
Q2
Jun 16
Q3
Sep 15
Q4
Jan 15
Frequently Asked Questions
How are independent contractors taxed in South Carolina?
Independent contractors pay self-employment tax (15.3%) plus federal and state income tax on net profit. Unlike employees, no taxes are withheld — you're responsible for quarterly estimated payments.
1099-NEC vs W-2 in South Carolina?
1099 workers are independent contractors — clients don't withhold taxes, no benefits, you pay both halves of FICA. W-2 employees have taxes withheld and the employer pays half of FICA. Misclassification penalties are severe.
Disclaimer:This calculator provides estimates for informational purposes only. It does not constitute tax advice, financial advice, or legal advice. Tax laws change frequently and vary by individual circumstances. Results may not reflect your actual tax liability. Always consult a qualified CPA, tax professional, or financial advisor before making tax decisions. For official tax information, visit IRS.gov.