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South Carolina Income Tax Calculator 2026 — State Tax Brackets & Rates
Estimated South Carolina state income tax at common income levels, combined federal + state burden, and the full South Carolina tax bracket table — 2025 rates.
Reviewed for accuracy June 2026 by Gary Sing
State tax type
Progressive
State tax at $75k
$4,536
Federal tax at $75k
$8,114
Combined eff. rate $75k
16.9%
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South Carolina income tax at common income levels — 2025
Single filer, 2025 federal standard deduction ($15,000). Federal tax uses 2025 IRS brackets.
| Income | South Carolina state tax | State eff. rate | Federal tax | Total tax | Total eff. rate |
|---|---|---|---|---|---|
| $50,000 | $2,986 | 6.0% | $3,962 | $6,948 | 13.9% |
| $75,000 | $4,536 | 6.0% | $8,114 | $12,650 | 16.9% |
| $100,000 | $6,086 | 6.1% | $13,614 | $19,700 | 19.7% |
Single filer. Federal tax computed on gross income minus $15,000 standard deduction using 2025 IRS brackets. State tax estimates are approximate — consult a tax professional for exact liability. Does not include FICA (Social Security + Medicare), local taxes, or deductions beyond the standard deduction.
South Carolina state income tax rate 2025
South Carolina has a two-bracket system: 3% on the first $3,560 and 6.2% above. The effective rate at $75k is approximately 5.9%. South Carolina is gradually reducing its top rate toward 6.0% under current legislation.
| Taxable income (single) | Rate |
|---|---|
| $0 – $3,560 | 3% |
| Over $3,560 | 6.2% |
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South Carolina income tax — frequently asked questions
Does South Carolina have a state income tax?
Yes. South Carolina has a progressive income tax with rates up to 6.2%.
What is the South Carolina state income tax rate for 2025?
South Carolina has a progressive tax with a top rate of 6.2%. The effective rate depends on income level — at $75,000, the effective South Carolina state tax rate is approximately 6.0%.
How much South Carolina state income tax do I owe on $75,000?
On a $75,000 gross income (single filer, 2025), estimated South Carolina state income tax is approximately $4,536 (effective rate: 6.0%). Combined with federal income tax of approximately $8,114, total tax is about $12,650 — an overall effective rate of 16.9%.
What is the combined federal and South Carolina state income tax at $100,000?
At $100,000 gross income (single filer, 2025 standard deductions): federal income tax is approximately $13,614, South Carolina state income tax is $6,086, for a combined total of approximately $19,700 — an overall effective rate of 19.7%.
How does South Carolina's income tax compare to other states?
South Carolina's top rate of 6.2% places it in the moderate range nationally. The nine states with no income tax pay $0 in state income tax; the highest-tax states (California at 13.3%, Hawaii at 11%) have the largest state income tax burdens.