South Carolina Tax Calculator
South Carolina overhauled its income tax for 2026, moving to a simple two-tier structure — a low rate on the first slice of income and a higher rate above it — that lowers the bill for most filers compared with the state's old top rate. South Carolina does not tax Social Security and offers a retirement-income deduction for older residents. This calculator applies South Carolina's new 2026 structure to your entered income.
State Tax
$4,244Effective Rate
4.24%Marginal Rate
5.21%| Rate | Bracket Range | Tax |
|---|---|---|
| 1.99% | $0 – $30,000 | $597 |
| 5.21% | $30,000+ | $3,647 |
| Total | $4,244 | |
How South Carolina income tax works
- South Carolina now applies a low rate to the first slice of your income and a higher rate to everything above that threshold (the legislature framed the same math as a flat rate minus a fixed credit).
- The 2026 overhaul replaced the state's former multi-bracket schedule with this simpler two-tier approach.
- The calculator applies the current structure to your entered income for an exact total.
Need the exact bracket thresholds instead of an estimate? See the South Carolina tax brackets for 2026 .
Estimate your South Carolina property tax by county, compare every state at the state tax brackets hub , or see the full tax-by-state directory .
Frequently asked questions
How is South Carolina income tax calculated?
For 2026, South Carolina applies one rate below a threshold and a higher rate above it, then subtracts a flat credit from the result. The calculator applies this current structure to your entered income.
Does South Carolina tax Social Security benefits?
No. South Carolina excludes Social Security benefits from state taxable income and offers an additional retirement-income deduction for older residents.
Did South Carolina's tax structure change for 2026?
Yes — South Carolina overhauled its bracket system for 2026, moving from its former multi-bracket schedule to a simpler two-tier structure combined with a flat credit.
How much state tax will I pay in South Carolina?
It depends on which tier your income falls into and the flat credit applied. Enter your income above for an exact total.
Sources
Related insights
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