South Carolina Self-Employment Tax Calculator
Federal self-employment tax and income tax, plus South Carolina state income tax using the 2026 rates, in one estimate. Enter your income and costs to see what to set aside.
Your results
Enter your numbers to see your estimate.
Your results
Enter your numbers to see your estimate.
South Carolina income tax in 2026
South Carolina's rate structure for 2026: 3% to 6%, 3 brackets. The brackets below are for single filers; joint filers get wider brackets.
| Taxable income (single) | Rate |
|---|---|
| $0 and up | 0% |
| $3,640 and up | 3% |
| $18,230 and up | 6% |
Deductions modelled in this calculator: a standard deduction of $8,350 for single filers and $16,700 for joint filers.
The calculator starts from your federal adjusted gross income (profit minus half of your self-employment tax) and applies these brackets. Head of household uses the single brackets. Local taxes and state credits other than the personal credit are not included.
What it means in dollars
For a South Carolina freelancer or gig worker with $55,000 of income and $5,000 of business costs (net profit $50,000, single filer, no other income), we estimate self-employment tax of $7,065, federal income tax of $2,667 and South Carolina income tax of $1,631. The total is about $11,363, or 22.7% of profit, which is $2,841 per quarter. The state share is $1,631.
Local taxes and special rules in South Carolina
We have not flagged a widely applicable city or county income tax for South Carolina, but some localities charge their own taxes or fees on self-employment income. Check with your city and county.
Estimated payments in South Carolina
Most states with an income tax expect estimated payments from self-employed people who expect to owe more than a small amount, and many use dates close to the federal ones. Confirm the schedule and any minimum with the South Carolina tax agency, using the link in the sources below. See also the federal due dates guide and the safe-harbor rules.
Frequently asked questions
Does South Carolina have a state income tax?
Yes. South Carolina uses graduated rates for 2026: 3% to 6%, 3 brackets. Federal tax applies on top.
How much should I set aside for taxes in South Carolina?
For $50,000 of net profit our estimate is about 22.7%, including federal and South Carolina income tax and self-employment tax. Your own figure depends on income, filing status and other income, so use the calculator above.
Do I pay South Carolina estimated taxes as a freelancer or gig worker?
Generally, if you expect to owe more than a small amount for the year after withholding. Dates and thresholds are set by South Carolina, so confirm them with the state tax agency.
Are there local taxes on self-employment income in South Carolina?
This calculator does not include city or county taxes. Check with your local government for South Carolina.
Sources
- Tax Foundation: State Individual Income Tax Rates and Brackets, 2026
- IRS: South Carolina state tax information
- IRS: Self-employment tax (Social Security and Medicare)
- IRS: Estimated taxes
Estimates only, not tax advice. State rules change, and city, county and special taxes are not included. See our disclaimer.
Other states
Not in South Carolina? Use the state tax guide or pick any state in the calculator above. Related tools: self-employed tax calculator, quarterly tax calculator, 1099 vs W-2.