South Carolina Paycheck Calculator
South Carolina withholds using a 0% / 3% / 6% bracket formula on annualized wages, but only if you claim at least one allowance on Form SC W-4 — doing so unlocks both a $5,000-per-allowance personal allowance and a standard deduction equal to 10% of your wages (capped at $7,500). Claim zero allowances and neither applies, so all your wages are taxed from dollar one.
How South Carolina taxes your paycheck in 2026
- Withholding brackets (2026)
- 0% under $3,640, 3% to $18,230, 6% above
- SC W-4 personal allowance
- $5,000/year each — $0 if zero allowances claimed
- Standard deduction
- 10% of wages, capped at $7,500 — $0 if zero allowances claimed
2026 South Carolina withholding rate schedule (all filers, annual)
Rendered from the same data file the calculator computes with.
| Taxable income | Rate |
|---|---|
| $0 – $3,640 | 0% |
| $3,640 – $18,230 | 3% |
| Over $18,230 | 6% |
South Carolina paycheck FAQs
Why would claiming zero allowances increase my South Carolina withholding a lot?
South Carolina's personal allowance ($5,000 each) and its 10%-of-wages standard deduction are both switched off entirely if you claim zero allowances on Form SC W-4 — not just reduced. Claiming even one allowance turns both deductions back on.
How is South Carolina's 6% top bracket applied?
It's calculated as 6% of your entire taxable income minus a fixed $656.10 — mathematically identical to a marginal bracket, just expressed as SCDOR's 'subtraction method' formula.
Does South Carolina have city or county income tax?
No. South Carolina funds local government through property and sales taxes; there's no additional municipal wage tax anywhere in the state.
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Tax data verified 2026-07-21 against the official source. See our methodology.
